Constructing dimensional gradient structure of Na

Na3V2(PO4)3 (NVP) has gained enormous attentions due to the high capacity and voltage platform. Nevertheless, poor intrinsic electronic conductivities severely restrict the further development. Herein, a feasible strategy to construct unique dimensional gradient structure of the wolfram doped NVP is...
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Autor*in:	Sun, Shiqi [verfasserIn] Chen, Yanjun [verfasserIn] Cheng, Jun [verfasserIn] Tian, Zeyi [verfasserIn] Wang, Chao [verfasserIn] Wu, Guangping [verfasserIn] Liu, Changcheng [verfasserIn] Wang, Yanzhong [verfasserIn] Guo, Li [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	W-substitution WC Na Carbon nanotubes Na-ion batteries

Übergeordnetes Werk:	Enthalten in: The chemical engineering journal - Amsterdam : Elsevier, 1997, 420
Übergeordnetes Werk:	volume:420

DOI / URN:	10.1016/j.cej.2021.130453

Katalog-ID:	ELV00001902X

Internformat


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520			\|a Na3V2(PO4)3 (NVP) has gained enormous attentions due to the high capacity and voltage platform. Nevertheless, poor intrinsic electronic conductivities severely restrict the further development. Herein, a feasible strategy to construct unique dimensional gradient structure of the wolfram doped NVP is proposed via a facile sol–gel method. The introduction of W6+ with the smaller ionic radius parallelized with local V3+ ions could stabilize the open NASICON structure of NVP and generate vast of beneficial holes to accelerate the electronic transportation. Notably, the wolfram can combine with the superfluous carbon layer and form the new conductive WC phase to further promote the electronic conductivity. Meanwhile, the coated carbon layers and enwrapped CNTs construct an effective conductive framework for accelerated electronic migration. The twining CNTs promote to inhibit the growth of the sintered grains, reducing the particle size to provide shortened pathway for the migration of Na+. Distinctively, the modified Na2.97V2.99W0.019(PO4)3/CCNTs (W0.01-NVP) composite delivers a superior electrochemical performance. Significantly, it can submit a high reversible capability of 112.5 mAh g−1 at 5C with retaining 86% initial capacity over 500 cycles. As for a super high rate of 50C, it reveals an incredible capacity of 92.6 mAh g−1 and remains 84.5 mAh g−1 over 400 cycles, corresponding to a high retention of 91.30%. The superior electrochemical performance is derived from the enhanced crystal structure resulted from wolfram substitution and the beneficial dimensional conductive system consisting of new WC phase, coated carbon layers and enwrapped CNTs.
650		4	\|a W-substitution
650		4	\|a WC
650		4	\|a Na
650		4	\|a Carbon nanotubes
650		4	\|a Na-ion batteries
700	1		\|a Chen, Yanjun \|e verfasserin \|4 aut
700	1		\|a Cheng, Jun \|e verfasserin \|4 aut
700	1		\|a Tian, Zeyi \|e verfasserin \|4 aut
700	1		\|a Wang, Chao \|e verfasserin \|4 aut
700	1		\|a Wu, Guangping \|e verfasserin \|4 aut
700	1		\|a Liu, Changcheng \|e verfasserin \|4 aut
700	1		\|a Wang, Yanzhong \|e verfasserin \|4 aut
700	1		\|a Guo, Li \|e verfasserin \|4 aut
773	0	8	\|i Enthalten in \|t The chemical engineering journal \|d Amsterdam : Elsevier, 1997 \|g 420 \|h Online-Ressource \|w (DE-627)320500322 \|w (DE-600)2012137-4 \|w (DE-576)098330152 \|x 1873-3212 \|7 nnns
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936	b	k	\|a 58.10 \|j Verfahrenstechnik: Allgemeines
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Indexfelder

author_variant	s s ss y c yc j c jc z t zt c w cw g w gw c l cl y w yw l g lg
matchkey_str	article:18733212:2021----::osrcigiesoagains
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publishDate	2021
allfields	10.1016/j.cej.2021.130453 doi (DE-627)ELV00001902X (ELSEVIER)S1385-8947(21)02039-8 DE-627 ger DE-627 rda eng 660.05 DE-101 660 DE-101 660 DE-600 58.10 bkl Sun, Shiqi verfasserin aut Constructing dimensional gradient structure of Na 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Na3V2(PO4)3 (NVP) has gained enormous attentions due to the high capacity and voltage platform. Nevertheless, poor intrinsic electronic conductivities severely restrict the further development. Herein, a feasible strategy to construct unique dimensional gradient structure of the wolfram doped NVP is proposed via a facile sol–gel method. The introduction of W6+ with the smaller ionic radius parallelized with local V3+ ions could stabilize the open NASICON structure of NVP and generate vast of beneficial holes to accelerate the electronic transportation. Notably, the wolfram can combine with the superfluous carbon layer and form the new conductive WC phase to further promote the electronic conductivity. Meanwhile, the coated carbon layers and enwrapped CNTs construct an effective conductive framework for accelerated electronic migration. The twining CNTs promote to inhibit the growth of the sintered grains, reducing the particle size to provide shortened pathway for the migration of Na+. Distinctively, the modified Na2.97V2.99W0.019(PO4)3/CCNTs (W0.01-NVP) composite delivers a superior electrochemical performance. Significantly, it can submit a high reversible capability of 112.5 mAh g−1 at 5C with retaining 86% initial capacity over 500 cycles. As for a super high rate of 50C, it reveals an incredible capacity of 92.6 mAh g−1 and remains 84.5 mAh g−1 over 400 cycles, corresponding to a high retention of 91.30%. The superior electrochemical performance is derived from the enhanced crystal structure resulted from wolfram substitution and the beneficial dimensional conductive system consisting of new WC phase, coated carbon layers and enwrapped CNTs. W-substitution WC Na Carbon nanotubes Na-ion batteries Chen, Yanjun verfasserin aut Cheng, Jun verfasserin aut Tian, Zeyi verfasserin aut Wang, Chao verfasserin aut Wu, Guangping verfasserin aut Liu, Changcheng verfasserin aut Wang, Yanzhong verfasserin aut Guo, Li verfasserin aut Enthalten in The chemical engineering journal Amsterdam : Elsevier, 1997 420 Online-Ressource (DE-627)320500322 (DE-600)2012137-4 (DE-576)098330152 1873-3212 nnns volume:420 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 58.10 Verfahrenstechnik: Allgemeines AR 420 045F 660.05
spelling	10.1016/j.cej.2021.130453 doi (DE-627)ELV00001902X (ELSEVIER)S1385-8947(21)02039-8 DE-627 ger DE-627 rda eng 660.05 DE-101 660 DE-101 660 DE-600 58.10 bkl Sun, Shiqi verfasserin aut Constructing dimensional gradient structure of Na 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Na3V2(PO4)3 (NVP) has gained enormous attentions due to the high capacity and voltage platform. Nevertheless, poor intrinsic electronic conductivities severely restrict the further development. Herein, a feasible strategy to construct unique dimensional gradient structure of the wolfram doped NVP is proposed via a facile sol–gel method. The introduction of W6+ with the smaller ionic radius parallelized with local V3+ ions could stabilize the open NASICON structure of NVP and generate vast of beneficial holes to accelerate the electronic transportation. Notably, the wolfram can combine with the superfluous carbon layer and form the new conductive WC phase to further promote the electronic conductivity. Meanwhile, the coated carbon layers and enwrapped CNTs construct an effective conductive framework for accelerated electronic migration. The twining CNTs promote to inhibit the growth of the sintered grains, reducing the particle size to provide shortened pathway for the migration of Na+. Distinctively, the modified Na2.97V2.99W0.019(PO4)3/CCNTs (W0.01-NVP) composite delivers a superior electrochemical performance. Significantly, it can submit a high reversible capability of 112.5 mAh g−1 at 5C with retaining 86% initial capacity over 500 cycles. As for a super high rate of 50C, it reveals an incredible capacity of 92.6 mAh g−1 and remains 84.5 mAh g−1 over 400 cycles, corresponding to a high retention of 91.30%. The superior electrochemical performance is derived from the enhanced crystal structure resulted from wolfram substitution and the beneficial dimensional conductive system consisting of new WC phase, coated carbon layers and enwrapped CNTs. W-substitution WC Na Carbon nanotubes Na-ion batteries Chen, Yanjun verfasserin aut Cheng, Jun verfasserin aut Tian, Zeyi verfasserin aut Wang, Chao verfasserin aut Wu, Guangping verfasserin aut Liu, Changcheng verfasserin aut Wang, Yanzhong verfasserin aut Guo, Li verfasserin aut Enthalten in The chemical engineering journal Amsterdam : Elsevier, 1997 420 Online-Ressource (DE-627)320500322 (DE-600)2012137-4 (DE-576)098330152 1873-3212 nnns volume:420 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 58.10 Verfahrenstechnik: Allgemeines AR 420 045F 660.05
allfields_unstemmed	10.1016/j.cej.2021.130453 doi (DE-627)ELV00001902X (ELSEVIER)S1385-8947(21)02039-8 DE-627 ger DE-627 rda eng 660.05 DE-101 660 DE-101 660 DE-600 58.10 bkl Sun, Shiqi verfasserin aut Constructing dimensional gradient structure of Na 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Na3V2(PO4)3 (NVP) has gained enormous attentions due to the high capacity and voltage platform. Nevertheless, poor intrinsic electronic conductivities severely restrict the further development. Herein, a feasible strategy to construct unique dimensional gradient structure of the wolfram doped NVP is proposed via a facile sol–gel method. The introduction of W6+ with the smaller ionic radius parallelized with local V3+ ions could stabilize the open NASICON structure of NVP and generate vast of beneficial holes to accelerate the electronic transportation. Notably, the wolfram can combine with the superfluous carbon layer and form the new conductive WC phase to further promote the electronic conductivity. Meanwhile, the coated carbon layers and enwrapped CNTs construct an effective conductive framework for accelerated electronic migration. The twining CNTs promote to inhibit the growth of the sintered grains, reducing the particle size to provide shortened pathway for the migration of Na+. Distinctively, the modified Na2.97V2.99W0.019(PO4)3/CCNTs (W0.01-NVP) composite delivers a superior electrochemical performance. Significantly, it can submit a high reversible capability of 112.5 mAh g−1 at 5C with retaining 86% initial capacity over 500 cycles. As for a super high rate of 50C, it reveals an incredible capacity of 92.6 mAh g−1 and remains 84.5 mAh g−1 over 400 cycles, corresponding to a high retention of 91.30%. The superior electrochemical performance is derived from the enhanced crystal structure resulted from wolfram substitution and the beneficial dimensional conductive system consisting of new WC phase, coated carbon layers and enwrapped CNTs. W-substitution WC Na Carbon nanotubes Na-ion batteries Chen, Yanjun verfasserin aut Cheng, Jun verfasserin aut Tian, Zeyi verfasserin aut Wang, Chao verfasserin aut Wu, Guangping verfasserin aut Liu, Changcheng verfasserin aut Wang, Yanzhong verfasserin aut Guo, Li verfasserin aut Enthalten in The chemical engineering journal Amsterdam : Elsevier, 1997 420 Online-Ressource (DE-627)320500322 (DE-600)2012137-4 (DE-576)098330152 1873-3212 nnns volume:420 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 58.10 Verfahrenstechnik: Allgemeines AR 420 045F 660.05
allfieldsGer	10.1016/j.cej.2021.130453 doi (DE-627)ELV00001902X (ELSEVIER)S1385-8947(21)02039-8 DE-627 ger DE-627 rda eng 660.05 DE-101 660 DE-101 660 DE-600 58.10 bkl Sun, Shiqi verfasserin aut Constructing dimensional gradient structure of Na 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Na3V2(PO4)3 (NVP) has gained enormous attentions due to the high capacity and voltage platform. Nevertheless, poor intrinsic electronic conductivities severely restrict the further development. Herein, a feasible strategy to construct unique dimensional gradient structure of the wolfram doped NVP is proposed via a facile sol–gel method. The introduction of W6+ with the smaller ionic radius parallelized with local V3+ ions could stabilize the open NASICON structure of NVP and generate vast of beneficial holes to accelerate the electronic transportation. Notably, the wolfram can combine with the superfluous carbon layer and form the new conductive WC phase to further promote the electronic conductivity. Meanwhile, the coated carbon layers and enwrapped CNTs construct an effective conductive framework for accelerated electronic migration. The twining CNTs promote to inhibit the growth of the sintered grains, reducing the particle size to provide shortened pathway for the migration of Na+. Distinctively, the modified Na2.97V2.99W0.019(PO4)3/CCNTs (W0.01-NVP) composite delivers a superior electrochemical performance. Significantly, it can submit a high reversible capability of 112.5 mAh g−1 at 5C with retaining 86% initial capacity over 500 cycles. As for a super high rate of 50C, it reveals an incredible capacity of 92.6 mAh g−1 and remains 84.5 mAh g−1 over 400 cycles, corresponding to a high retention of 91.30%. The superior electrochemical performance is derived from the enhanced crystal structure resulted from wolfram substitution and the beneficial dimensional conductive system consisting of new WC phase, coated carbon layers and enwrapped CNTs. W-substitution WC Na Carbon nanotubes Na-ion batteries Chen, Yanjun verfasserin aut Cheng, Jun verfasserin aut Tian, Zeyi verfasserin aut Wang, Chao verfasserin aut Wu, Guangping verfasserin aut Liu, Changcheng verfasserin aut Wang, Yanzhong verfasserin aut Guo, Li verfasserin aut Enthalten in The chemical engineering journal Amsterdam : Elsevier, 1997 420 Online-Ressource (DE-627)320500322 (DE-600)2012137-4 (DE-576)098330152 1873-3212 nnns volume:420 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 58.10 Verfahrenstechnik: Allgemeines AR 420 045F 660.05
allfieldsSound	10.1016/j.cej.2021.130453 doi (DE-627)ELV00001902X (ELSEVIER)S1385-8947(21)02039-8 DE-627 ger DE-627 rda eng 660.05 DE-101 660 DE-101 660 DE-600 58.10 bkl Sun, Shiqi verfasserin aut Constructing dimensional gradient structure of Na 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Na3V2(PO4)3 (NVP) has gained enormous attentions due to the high capacity and voltage platform. Nevertheless, poor intrinsic electronic conductivities severely restrict the further development. Herein, a feasible strategy to construct unique dimensional gradient structure of the wolfram doped NVP is proposed via a facile sol–gel method. The introduction of W6+ with the smaller ionic radius parallelized with local V3+ ions could stabilize the open NASICON structure of NVP and generate vast of beneficial holes to accelerate the electronic transportation. Notably, the wolfram can combine with the superfluous carbon layer and form the new conductive WC phase to further promote the electronic conductivity. Meanwhile, the coated carbon layers and enwrapped CNTs construct an effective conductive framework for accelerated electronic migration. The twining CNTs promote to inhibit the growth of the sintered grains, reducing the particle size to provide shortened pathway for the migration of Na+. Distinctively, the modified Na2.97V2.99W0.019(PO4)3/CCNTs (W0.01-NVP) composite delivers a superior electrochemical performance. Significantly, it can submit a high reversible capability of 112.5 mAh g−1 at 5C with retaining 86% initial capacity over 500 cycles. As for a super high rate of 50C, it reveals an incredible capacity of 92.6 mAh g−1 and remains 84.5 mAh g−1 over 400 cycles, corresponding to a high retention of 91.30%. The superior electrochemical performance is derived from the enhanced crystal structure resulted from wolfram substitution and the beneficial dimensional conductive system consisting of new WC phase, coated carbon layers and enwrapped CNTs. W-substitution WC Na Carbon nanotubes Na-ion batteries Chen, Yanjun verfasserin aut Cheng, Jun verfasserin aut Tian, Zeyi verfasserin aut Wang, Chao verfasserin aut Wu, Guangping verfasserin aut Liu, Changcheng verfasserin aut Wang, Yanzhong verfasserin aut Guo, Li verfasserin aut Enthalten in The chemical engineering journal Amsterdam : Elsevier, 1997 420 Online-Ressource (DE-627)320500322 (DE-600)2012137-4 (DE-576)098330152 1873-3212 nnns volume:420 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 58.10 Verfahrenstechnik: Allgemeines AR 420 045F 660.05
language	English
source	Enthalten in The chemical engineering journal 420 volume:420
sourceStr	Enthalten in The chemical engineering journal 420 volume:420
format_phy_str_mv	Article
bklname	Verfahrenstechnik: Allgemeines
institution	findex.gbv.de
topic_facet	W-substitution WC Na Carbon nanotubes Na-ion batteries
dewey-raw	660.05
isfreeaccess_bool	false
container_title	The chemical engineering journal
authorswithroles_txt_mv	Sun, Shiqi @@aut@@ Chen, Yanjun @@aut@@ Cheng, Jun @@aut@@ Tian, Zeyi @@aut@@ Wang, Chao @@aut@@ Wu, Guangping @@aut@@ Liu, Changcheng @@aut@@ Wang, Yanzhong @@aut@@ Guo, Li @@aut@@
publishDateDaySort_date	2021-01-01T00:00:00Z
hierarchy_top_id	320500322
dewey-sort	3660.05
id	ELV00001902X
language_de	englisch
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author	Sun, Shiqi
spellingShingle	Sun, Shiqi ddc 660.05 ddc 660 bkl 58.10 misc W-substitution misc WC misc Na misc Carbon nanotubes misc Na-ion batteries Constructing dimensional gradient structure of Na
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topic_title	660.05 DE-101 660 DE-101 660 DE-600 58.10 bkl Constructing dimensional gradient structure of Na W-substitution WC Na Carbon nanotubes Na-ion batteries
topic	ddc 660.05 ddc 660 bkl 58.10 misc W-substitution misc WC misc Na misc Carbon nanotubes misc Na-ion batteries
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title	Constructing dimensional gradient structure of Na
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title_full	Constructing dimensional gradient structure of Na
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author_browse	Sun, Shiqi Chen, Yanjun Cheng, Jun Tian, Zeyi Wang, Chao Wu, Guangping Liu, Changcheng Wang, Yanzhong Guo, Li
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doi_str_mv	10.1016/j.cej.2021.130453
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title_sort	constructing dimensional gradient structure of na
title_auth	Constructing dimensional gradient structure of Na
abstract	Na3V2(PO4)3 (NVP) has gained enormous attentions due to the high capacity and voltage platform. Nevertheless, poor intrinsic electronic conductivities severely restrict the further development. Herein, a feasible strategy to construct unique dimensional gradient structure of the wolfram doped NVP is proposed via a facile sol–gel method. The introduction of W6+ with the smaller ionic radius parallelized with local V3+ ions could stabilize the open NASICON structure of NVP and generate vast of beneficial holes to accelerate the electronic transportation. Notably, the wolfram can combine with the superfluous carbon layer and form the new conductive WC phase to further promote the electronic conductivity. Meanwhile, the coated carbon layers and enwrapped CNTs construct an effective conductive framework for accelerated electronic migration. The twining CNTs promote to inhibit the growth of the sintered grains, reducing the particle size to provide shortened pathway for the migration of Na+. Distinctively, the modified Na2.97V2.99W0.019(PO4)3/CCNTs (W0.01-NVP) composite delivers a superior electrochemical performance. Significantly, it can submit a high reversible capability of 112.5 mAh g−1 at 5C with retaining 86% initial capacity over 500 cycles. As for a super high rate of 50C, it reveals an incredible capacity of 92.6 mAh g−1 and remains 84.5 mAh g−1 over 400 cycles, corresponding to a high retention of 91.30%. The superior electrochemical performance is derived from the enhanced crystal structure resulted from wolfram substitution and the beneficial dimensional conductive system consisting of new WC phase, coated carbon layers and enwrapped CNTs.
abstractGer	Na3V2(PO4)3 (NVP) has gained enormous attentions due to the high capacity and voltage platform. Nevertheless, poor intrinsic electronic conductivities severely restrict the further development. Herein, a feasible strategy to construct unique dimensional gradient structure of the wolfram doped NVP is proposed via a facile sol–gel method. The introduction of W6+ with the smaller ionic radius parallelized with local V3+ ions could stabilize the open NASICON structure of NVP and generate vast of beneficial holes to accelerate the electronic transportation. Notably, the wolfram can combine with the superfluous carbon layer and form the new conductive WC phase to further promote the electronic conductivity. Meanwhile, the coated carbon layers and enwrapped CNTs construct an effective conductive framework for accelerated electronic migration. The twining CNTs promote to inhibit the growth of the sintered grains, reducing the particle size to provide shortened pathway for the migration of Na+. Distinctively, the modified Na2.97V2.99W0.019(PO4)3/CCNTs (W0.01-NVP) composite delivers a superior electrochemical performance. Significantly, it can submit a high reversible capability of 112.5 mAh g−1 at 5C with retaining 86% initial capacity over 500 cycles. As for a super high rate of 50C, it reveals an incredible capacity of 92.6 mAh g−1 and remains 84.5 mAh g−1 over 400 cycles, corresponding to a high retention of 91.30%. The superior electrochemical performance is derived from the enhanced crystal structure resulted from wolfram substitution and the beneficial dimensional conductive system consisting of new WC phase, coated carbon layers and enwrapped CNTs.
abstract_unstemmed	Na3V2(PO4)3 (NVP) has gained enormous attentions due to the high capacity and voltage platform. Nevertheless, poor intrinsic electronic conductivities severely restrict the further development. Herein, a feasible strategy to construct unique dimensional gradient structure of the wolfram doped NVP is proposed via a facile sol–gel method. The introduction of W6+ with the smaller ionic radius parallelized with local V3+ ions could stabilize the open NASICON structure of NVP and generate vast of beneficial holes to accelerate the electronic transportation. Notably, the wolfram can combine with the superfluous carbon layer and form the new conductive WC phase to further promote the electronic conductivity. Meanwhile, the coated carbon layers and enwrapped CNTs construct an effective conductive framework for accelerated electronic migration. The twining CNTs promote to inhibit the growth of the sintered grains, reducing the particle size to provide shortened pathway for the migration of Na+. Distinctively, the modified Na2.97V2.99W0.019(PO4)3/CCNTs (W0.01-NVP) composite delivers a superior electrochemical performance. Significantly, it can submit a high reversible capability of 112.5 mAh g−1 at 5C with retaining 86% initial capacity over 500 cycles. As for a super high rate of 50C, it reveals an incredible capacity of 92.6 mAh g−1 and remains 84.5 mAh g−1 over 400 cycles, corresponding to a high retention of 91.30%. The superior electrochemical performance is derived from the enhanced crystal structure resulted from wolfram substitution and the beneficial dimensional conductive system consisting of new WC phase, coated carbon layers and enwrapped CNTs.
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title_short	Constructing dimensional gradient structure of Na
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author2	Chen, Yanjun Cheng, Jun Tian, Zeyi Wang, Chao Wu, Guangping Liu, Changcheng Wang, Yanzhong Guo, Li
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doi_str	10.1016/j.cej.2021.130453
up_date	2024-07-06T16:35:50.184Z
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Constructing dimensional gradient structure of Na

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