Amendment of palladium nanocubes with iron oxide nanowires for boosted formic acid electro−oxidation

To quickly move the formic acid (FA) fuel cells closer to a real commercialization, an inexpensive, efficient, and durable electrocatalyst for the direct FA electro-oxidation (FAEO) was developed. This involved a sequential modification of a glassy carbon (GC) substrate with palladium nanocubes (ca....
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Autor*in:	Heba H. Farrag [verfasserIn] Islam M. Al-Akraa [verfasserIn] Nageh K. Allam [verfasserIn] Ahmad M. Mohammad [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	Fuel cells Formic acid Iron oxide Electrocatalysis Pd nanocubes

Übergeordnetes Werk:	In: Arabian Journal of Chemistry - Elsevier, 2016, 16(2023), 3, Seite 104524-
Übergeordnetes Werk:	volume:16 ; year:2023 ; number:3 ; pages:104524-

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1016/j.arabjc.2022.104524

Katalog-ID:	DOAJ081296193

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520			\|a To quickly move the formic acid (FA) fuel cells closer to a real commercialization, an inexpensive, efficient, and durable electrocatalyst for the direct FA electro-oxidation (FAEO) was developed. This involved a sequential modification of a glassy carbon (GC) substrate with palladium nanocubes (ca. 70 nm, nano-Pd) and iron oxide nanowires (nano-FeOx, ca. 40 nm and 150 nm in average diameter and length, respectively). The deposition sequence and loading level of nano-FeOx in the catalyst were optimized to minimize the catalyst's poisoning with CO that might probably release from a parallel dehydration of FA or from CO2 reduction. Surprisingly, the FeOx/Pd/GC catalyst exhibited a high (21.6 mA cm−2) specific activity for FAEO, which denoted ca. 7 times that of the “pristine” Pd/GC catalyst. This was synchronized with a better (up to fivefold increase in turnover frequency) “long-termed” stability that extended for 90 min of continuous electrolysis at room temperature. A successful effort was dedicated to improving more the catalyst's stability by activating the catalyst electrochemically at –0.5 V vs Ag/AgCl/KCl (sat.) in 0.2 mol L−1 NaOH. The CO stripping agreed perfectly with the impedance analysis in appending the observed enhancement in the catalytic efficiency of FAEO to a favorable electronic modulation at the Pd surface that boosted the oxidative desorption of poisoning CO species at a lower potential.
650		4	\|a Fuel cells
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700	0		\|a Nageh K. Allam \|e verfasserin \|4 aut
700	0		\|a Ahmad M. Mohammad \|e verfasserin \|4 aut
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allfieldsGer	10.1016/j.arabjc.2022.104524 doi (DE-627)DOAJ081296193 (DE-599)DOAJ890c7e6208c8432ca2e6c00f44b592b6 DE-627 ger DE-627 rakwb eng QD1-999 Heba H. Farrag verfasserin aut Amendment of palladium nanocubes with iron oxide nanowires for boosted formic acid electro−oxidation 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier To quickly move the formic acid (FA) fuel cells closer to a real commercialization, an inexpensive, efficient, and durable electrocatalyst for the direct FA electro-oxidation (FAEO) was developed. This involved a sequential modification of a glassy carbon (GC) substrate with palladium nanocubes (ca. 70 nm, nano-Pd) and iron oxide nanowires (nano-FeOx, ca. 40 nm and 150 nm in average diameter and length, respectively). The deposition sequence and loading level of nano-FeOx in the catalyst were optimized to minimize the catalyst's poisoning with CO that might probably release from a parallel dehydration of FA or from CO2 reduction. Surprisingly, the FeOx/Pd/GC catalyst exhibited a high (21.6 mA cm−2) specific activity for FAEO, which denoted ca. 7 times that of the “pristine” Pd/GC catalyst. This was synchronized with a better (up to fivefold increase in turnover frequency) “long-termed” stability that extended for 90 min of continuous electrolysis at room temperature. A successful effort was dedicated to improving more the catalyst's stability by activating the catalyst electrochemically at –0.5 V vs Ag/AgCl/KCl (sat.) in 0.2 mol L−1 NaOH. The CO stripping agreed perfectly with the impedance analysis in appending the observed enhancement in the catalytic efficiency of FAEO to a favorable electronic modulation at the Pd surface that boosted the oxidative desorption of poisoning CO species at a lower potential. Fuel cells Formic acid Iron oxide Electrocatalysis Pd nanocubes Chemistry Islam M. Al-Akraa verfasserin aut Nageh K. Allam verfasserin aut Ahmad M. Mohammad verfasserin aut In Arabian Journal of Chemistry Elsevier, 2016 16(2023), 3, Seite 104524- (DE-627)609401564 (DE-600)2515214-2 18785352 nnns volume:16 year:2023 number:3 pages:104524- https://doi.org/10.1016/j.arabjc.2022.104524 kostenfrei https://doaj.org/article/890c7e6208c8432ca2e6c00f44b592b6 kostenfrei http://www.sciencedirect.com/science/article/pii/S1878535222008401 kostenfrei https://doaj.org/toc/1878-5352 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4393 GBV_ILN_4700 AR 16 2023 3 104524-
allfieldsSound	10.1016/j.arabjc.2022.104524 doi (DE-627)DOAJ081296193 (DE-599)DOAJ890c7e6208c8432ca2e6c00f44b592b6 DE-627 ger DE-627 rakwb eng QD1-999 Heba H. Farrag verfasserin aut Amendment of palladium nanocubes with iron oxide nanowires for boosted formic acid electro−oxidation 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier To quickly move the formic acid (FA) fuel cells closer to a real commercialization, an inexpensive, efficient, and durable electrocatalyst for the direct FA electro-oxidation (FAEO) was developed. This involved a sequential modification of a glassy carbon (GC) substrate with palladium nanocubes (ca. 70 nm, nano-Pd) and iron oxide nanowires (nano-FeOx, ca. 40 nm and 150 nm in average diameter and length, respectively). The deposition sequence and loading level of nano-FeOx in the catalyst were optimized to minimize the catalyst's poisoning with CO that might probably release from a parallel dehydration of FA or from CO2 reduction. Surprisingly, the FeOx/Pd/GC catalyst exhibited a high (21.6 mA cm−2) specific activity for FAEO, which denoted ca. 7 times that of the “pristine” Pd/GC catalyst. This was synchronized with a better (up to fivefold increase in turnover frequency) “long-termed” stability that extended for 90 min of continuous electrolysis at room temperature. A successful effort was dedicated to improving more the catalyst's stability by activating the catalyst electrochemically at –0.5 V vs Ag/AgCl/KCl (sat.) in 0.2 mol L−1 NaOH. The CO stripping agreed perfectly with the impedance analysis in appending the observed enhancement in the catalytic efficiency of FAEO to a favorable electronic modulation at the Pd surface that boosted the oxidative desorption of poisoning CO species at a lower potential. Fuel cells Formic acid Iron oxide Electrocatalysis Pd nanocubes Chemistry Islam M. Al-Akraa verfasserin aut Nageh K. Allam verfasserin aut Ahmad M. Mohammad verfasserin aut In Arabian Journal of Chemistry Elsevier, 2016 16(2023), 3, Seite 104524- (DE-627)609401564 (DE-600)2515214-2 18785352 nnns volume:16 year:2023 number:3 pages:104524- https://doi.org/10.1016/j.arabjc.2022.104524 kostenfrei https://doaj.org/article/890c7e6208c8432ca2e6c00f44b592b6 kostenfrei http://www.sciencedirect.com/science/article/pii/S1878535222008401 kostenfrei https://doaj.org/toc/1878-5352 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4393 GBV_ILN_4700 AR 16 2023 3 104524-
language	English
source	In Arabian Journal of Chemistry 16(2023), 3, Seite 104524- volume:16 year:2023 number:3 pages:104524-
sourceStr	In Arabian Journal of Chemistry 16(2023), 3, Seite 104524- volume:16 year:2023 number:3 pages:104524-
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Fuel cells Formic acid Iron oxide Electrocatalysis Pd nanocubes Chemistry
isfreeaccess_bool	true
container_title	Arabian Journal of Chemistry
authorswithroles_txt_mv	Heba H. Farrag @@aut@@ Islam M. Al-Akraa @@aut@@ Nageh K. Allam @@aut@@ Ahmad M. Mohammad @@aut@@
publishDateDaySort_date	2023-01-01T00:00:00Z
hierarchy_top_id	609401564
id	DOAJ081296193
language_de	englisch
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callnumber-first	Q - Science
author	Heba H. Farrag
spellingShingle	Heba H. Farrag misc QD1-999 misc Fuel cells misc Formic acid misc Iron oxide misc Electrocatalysis misc Pd nanocubes misc Chemistry Amendment of palladium nanocubes with iron oxide nanowires for boosted formic acid electro−oxidation
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topic_title	QD1-999 Amendment of palladium nanocubes with iron oxide nanowires for boosted formic acid electro−oxidation Fuel cells Formic acid Iron oxide Electrocatalysis Pd nanocubes
topic	misc QD1-999 misc Fuel cells misc Formic acid misc Iron oxide misc Electrocatalysis misc Pd nanocubes misc Chemistry
topic_unstemmed	misc QD1-999 misc Fuel cells misc Formic acid misc Iron oxide misc Electrocatalysis misc Pd nanocubes misc Chemistry
topic_browse	misc QD1-999 misc Fuel cells misc Formic acid misc Iron oxide misc Electrocatalysis misc Pd nanocubes misc Chemistry
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title	Amendment of palladium nanocubes with iron oxide nanowires for boosted formic acid electro−oxidation
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title_full	Amendment of palladium nanocubes with iron oxide nanowires for boosted formic acid electro−oxidation
author_sort	Heba H. Farrag
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author_browse	Heba H. Farrag Islam M. Al-Akraa Nageh K. Allam Ahmad M. Mohammad
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title_sort	amendment of palladium nanocubes with iron oxide nanowires for boosted formic acid electro−oxidation
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title_auth	Amendment of palladium nanocubes with iron oxide nanowires for boosted formic acid electro−oxidation
abstract	To quickly move the formic acid (FA) fuel cells closer to a real commercialization, an inexpensive, efficient, and durable electrocatalyst for the direct FA electro-oxidation (FAEO) was developed. This involved a sequential modification of a glassy carbon (GC) substrate with palladium nanocubes (ca. 70 nm, nano-Pd) and iron oxide nanowires (nano-FeOx, ca. 40 nm and 150 nm in average diameter and length, respectively). The deposition sequence and loading level of nano-FeOx in the catalyst were optimized to minimize the catalyst's poisoning with CO that might probably release from a parallel dehydration of FA or from CO2 reduction. Surprisingly, the FeOx/Pd/GC catalyst exhibited a high (21.6 mA cm−2) specific activity for FAEO, which denoted ca. 7 times that of the “pristine” Pd/GC catalyst. This was synchronized with a better (up to fivefold increase in turnover frequency) “long-termed” stability that extended for 90 min of continuous electrolysis at room temperature. A successful effort was dedicated to improving more the catalyst's stability by activating the catalyst electrochemically at –0.5 V vs Ag/AgCl/KCl (sat.) in 0.2 mol L−1 NaOH. The CO stripping agreed perfectly with the impedance analysis in appending the observed enhancement in the catalytic efficiency of FAEO to a favorable electronic modulation at the Pd surface that boosted the oxidative desorption of poisoning CO species at a lower potential.
abstractGer	To quickly move the formic acid (FA) fuel cells closer to a real commercialization, an inexpensive, efficient, and durable electrocatalyst for the direct FA electro-oxidation (FAEO) was developed. This involved a sequential modification of a glassy carbon (GC) substrate with palladium nanocubes (ca. 70 nm, nano-Pd) and iron oxide nanowires (nano-FeOx, ca. 40 nm and 150 nm in average diameter and length, respectively). The deposition sequence and loading level of nano-FeOx in the catalyst were optimized to minimize the catalyst's poisoning with CO that might probably release from a parallel dehydration of FA or from CO2 reduction. Surprisingly, the FeOx/Pd/GC catalyst exhibited a high (21.6 mA cm−2) specific activity for FAEO, which denoted ca. 7 times that of the “pristine” Pd/GC catalyst. This was synchronized with a better (up to fivefold increase in turnover frequency) “long-termed” stability that extended for 90 min of continuous electrolysis at room temperature. A successful effort was dedicated to improving more the catalyst's stability by activating the catalyst electrochemically at –0.5 V vs Ag/AgCl/KCl (sat.) in 0.2 mol L−1 NaOH. The CO stripping agreed perfectly with the impedance analysis in appending the observed enhancement in the catalytic efficiency of FAEO to a favorable electronic modulation at the Pd surface that boosted the oxidative desorption of poisoning CO species at a lower potential.
abstract_unstemmed	To quickly move the formic acid (FA) fuel cells closer to a real commercialization, an inexpensive, efficient, and durable electrocatalyst for the direct FA electro-oxidation (FAEO) was developed. This involved a sequential modification of a glassy carbon (GC) substrate with palladium nanocubes (ca. 70 nm, nano-Pd) and iron oxide nanowires (nano-FeOx, ca. 40 nm and 150 nm in average diameter and length, respectively). The deposition sequence and loading level of nano-FeOx in the catalyst were optimized to minimize the catalyst's poisoning with CO that might probably release from a parallel dehydration of FA or from CO2 reduction. Surprisingly, the FeOx/Pd/GC catalyst exhibited a high (21.6 mA cm−2) specific activity for FAEO, which denoted ca. 7 times that of the “pristine” Pd/GC catalyst. This was synchronized with a better (up to fivefold increase in turnover frequency) “long-termed” stability that extended for 90 min of continuous electrolysis at room temperature. A successful effort was dedicated to improving more the catalyst's stability by activating the catalyst electrochemically at –0.5 V vs Ag/AgCl/KCl (sat.) in 0.2 mol L−1 NaOH. The CO stripping agreed perfectly with the impedance analysis in appending the observed enhancement in the catalytic efficiency of FAEO to a favorable electronic modulation at the Pd surface that boosted the oxidative desorption of poisoning CO species at a lower potential.
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container_issue	3
title_short	Amendment of palladium nanocubes with iron oxide nanowires for boosted formic acid electro−oxidation
url	https://doi.org/10.1016/j.arabjc.2022.104524 https://doaj.org/article/890c7e6208c8432ca2e6c00f44b592b6 http://www.sciencedirect.com/science/article/pii/S1878535222008401 https://doaj.org/toc/1878-5352
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up_date	2024-07-03T19:19:42.749Z
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This involved a sequential modification of a glassy carbon (GC) substrate with palladium nanocubes (ca. 70 nm, nano-Pd) and iron oxide nanowires (nano-FeOx, ca. 40 nm and 150 nm in average diameter and length, respectively). The deposition sequence and loading level of nano-FeOx in the catalyst were optimized to minimize the catalyst's poisoning with CO that might probably release from a parallel dehydration of FA or from CO2 reduction. Surprisingly, the FeOx/Pd/GC catalyst exhibited a high (21.6 mA cm−2) specific activity for FAEO, which denoted ca. 7 times that of the “pristine” Pd/GC catalyst. This was synchronized with a better (up to fivefold increase in turnover frequency) “long-termed” stability that extended for 90 min of continuous electrolysis at room temperature. A successful effort was dedicated to improving more the catalyst's stability by activating the catalyst electrochemically at –0.5 V vs Ag/AgCl/KCl (sat.) in 0.2 mol L−1 NaOH. The CO stripping agreed perfectly with the impedance analysis in appending the observed enhancement in the catalytic efficiency of FAEO to a favorable electronic modulation at the Pd surface that boosted the oxidative desorption of poisoning CO species at a lower potential.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Fuel cells</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Formic acid</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Iron oxide</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Electrocatalysis</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Pd nanocubes</subfield></datafield><datafield tag="653" ind1=" " ind2="0"><subfield code="a">Chemistry</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Islam M. 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Amendment of palladium nanocubes with iron oxide nanowires for boosted formic acid electro−oxidation

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