Porous Fe, N co-doped carbon with high electrocatalytic oxygen reduction reaction performance in Zn-air battery
Non-Pt electrocatalysts for oxygen reduction reactions (ORR) have been developed using metal and nitrogen co-doped carbon electrocatalysts. However, challenges remain regarding the porosity of the catalyst, distribution of active sites, and the easy aggregation of the metal components. Herein, we re...
Ausführliche Beschreibung
Autor*in: |
Wang, Mengyang [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
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2022transfer abstract |
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Umfang: |
10 |
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Übergeordnetes Werk: |
Enthalten in: Dynamic patterns of open review process - Zhao, Zhi-Dan ELSEVIER, 2021, an international journal sponsored by the American Carbon Society, Amsterdam [u.a.] |
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Übergeordnetes Werk: |
volume:200 ; year:2022 ; day:5 ; month:11 ; pages:337-346 ; extent:10 |
Links: |
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DOI / URN: |
10.1016/j.carbon.2022.08.068 |
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Katalog-ID: |
ELV059023384 |
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520 | |a Non-Pt electrocatalysts for oxygen reduction reactions (ORR) have been developed using metal and nitrogen co-doped carbon electrocatalysts. However, challenges remain regarding the porosity of the catalyst, distribution of active sites, and the easy aggregation of the metal components. Herein, we report a bottom-up preparation strategy to obtain a porous ethynyl-linked conjugated microporous polymer (CMP) precursor containing triazine units and bipyridine, ensuring high N content and coordination with Fe3+. The Fe doped CMP is then carbonization into a Fe, N co-doped nanoporous carbon material (BPCMP-Fe-800), which can be taken as the electrocatalyst in ORR. BPCMP-Fe-800 catalyst exhibits electrocatalytic performance dominated by 4e− transfer mechanism with the onset potential of 0.97 V, half-wave potential of 0.85 V, and higher kinetic current density of 11.3 mA cm−2 (0.8 V). In addition, when applied as cathode electrocatalyst in zinc-air batteries, BPCMP-Fe-800 displays more competitive power density (179.5 mW cm−2) and specific capacity (790.5 mAh g−1) compared with Pt/C. Our study demonstrates a general and facile approach for porous Fe, N co-doped carbon with the potential as alternatives to Pt catalysts for efficient ORR catalytic performances and provides new insights of multi-atom catalysts for other energy conversion related catalytic reactions. | ||
520 | |a Non-Pt electrocatalysts for oxygen reduction reactions (ORR) have been developed using metal and nitrogen co-doped carbon electrocatalysts. However, challenges remain regarding the porosity of the catalyst, distribution of active sites, and the easy aggregation of the metal components. Herein, we report a bottom-up preparation strategy to obtain a porous ethynyl-linked conjugated microporous polymer (CMP) precursor containing triazine units and bipyridine, ensuring high N content and coordination with Fe3+. The Fe doped CMP is then carbonization into a Fe, N co-doped nanoporous carbon material (BPCMP-Fe-800), which can be taken as the electrocatalyst in ORR. BPCMP-Fe-800 catalyst exhibits electrocatalytic performance dominated by 4e− transfer mechanism with the onset potential of 0.97 V, half-wave potential of 0.85 V, and higher kinetic current density of 11.3 mA cm−2 (0.8 V). In addition, when applied as cathode electrocatalyst in zinc-air batteries, BPCMP-Fe-800 displays more competitive power density (179.5 mW cm−2) and specific capacity (790.5 mAh g−1) compared with Pt/C. Our study demonstrates a general and facile approach for porous Fe, N co-doped carbon with the potential as alternatives to Pt catalysts for efficient ORR catalytic performances and provides new insights of multi-atom catalysts for other energy conversion related catalytic reactions. | ||
650 | 7 | |a Bipyridine |2 Elsevier | |
650 | 7 | |a Oxygen reduction reaction |2 Elsevier | |
650 | 7 | |a Conjugated microporous polymer |2 Elsevier | |
650 | 7 | |a Porous carbon |2 Elsevier | |
650 | 7 | |a Fe |2 Elsevier | |
650 | 7 | |a N co-doping |2 Elsevier | |
700 | 1 | |a Cao, Zuolin |4 oth | |
700 | 1 | |a Li, Longyu |4 oth | |
700 | 1 | |a Ren, Shijie |4 oth | |
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10.1016/j.carbon.2022.08.068 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001909.pica (DE-627)ELV059023384 (ELSEVIER)S0008-6223(22)00691-1 DE-627 ger DE-627 rakwb eng 500 VZ 33.25 bkl 31.00 bkl Wang, Mengyang verfasserin aut Porous Fe, N co-doped carbon with high electrocatalytic oxygen reduction reaction performance in Zn-air battery 2022transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Non-Pt electrocatalysts for oxygen reduction reactions (ORR) have been developed using metal and nitrogen co-doped carbon electrocatalysts. However, challenges remain regarding the porosity of the catalyst, distribution of active sites, and the easy aggregation of the metal components. Herein, we report a bottom-up preparation strategy to obtain a porous ethynyl-linked conjugated microporous polymer (CMP) precursor containing triazine units and bipyridine, ensuring high N content and coordination with Fe3+. The Fe doped CMP is then carbonization into a Fe, N co-doped nanoporous carbon material (BPCMP-Fe-800), which can be taken as the electrocatalyst in ORR. BPCMP-Fe-800 catalyst exhibits electrocatalytic performance dominated by 4e− transfer mechanism with the onset potential of 0.97 V, half-wave potential of 0.85 V, and higher kinetic current density of 11.3 mA cm−2 (0.8 V). In addition, when applied as cathode electrocatalyst in zinc-air batteries, BPCMP-Fe-800 displays more competitive power density (179.5 mW cm−2) and specific capacity (790.5 mAh g−1) compared with Pt/C. Our study demonstrates a general and facile approach for porous Fe, N co-doped carbon with the potential as alternatives to Pt catalysts for efficient ORR catalytic performances and provides new insights of multi-atom catalysts for other energy conversion related catalytic reactions. Non-Pt electrocatalysts for oxygen reduction reactions (ORR) have been developed using metal and nitrogen co-doped carbon electrocatalysts. However, challenges remain regarding the porosity of the catalyst, distribution of active sites, and the easy aggregation of the metal components. Herein, we report a bottom-up preparation strategy to obtain a porous ethynyl-linked conjugated microporous polymer (CMP) precursor containing triazine units and bipyridine, ensuring high N content and coordination with Fe3+. The Fe doped CMP is then carbonization into a Fe, N co-doped nanoporous carbon material (BPCMP-Fe-800), which can be taken as the electrocatalyst in ORR. BPCMP-Fe-800 catalyst exhibits electrocatalytic performance dominated by 4e− transfer mechanism with the onset potential of 0.97 V, half-wave potential of 0.85 V, and higher kinetic current density of 11.3 mA cm−2 (0.8 V). In addition, when applied as cathode electrocatalyst in zinc-air batteries, BPCMP-Fe-800 displays more competitive power density (179.5 mW cm−2) and specific capacity (790.5 mAh g−1) compared with Pt/C. Our study demonstrates a general and facile approach for porous Fe, N co-doped carbon with the potential as alternatives to Pt catalysts for efficient ORR catalytic performances and provides new insights of multi-atom catalysts for other energy conversion related catalytic reactions. Bipyridine Elsevier Oxygen reduction reaction Elsevier Conjugated microporous polymer Elsevier Porous carbon Elsevier Fe Elsevier N co-doping Elsevier Cao, Zuolin oth Li, Longyu oth Ren, Shijie oth Enthalten in Elsevier Science Zhao, Zhi-Dan ELSEVIER Dynamic patterns of open review process 2021 an international journal sponsored by the American Carbon Society Amsterdam [u.a.] (DE-627)ELV006580718 volume:200 year:2022 day:5 month:11 pages:337-346 extent:10 https://doi.org/10.1016/j.carbon.2022.08.068 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 33.25 Thermodynamik statistische Physik VZ 31.00 Mathematik: Allgemeines VZ AR 200 2022 5 1105 337-346 10 |
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10.1016/j.carbon.2022.08.068 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001909.pica (DE-627)ELV059023384 (ELSEVIER)S0008-6223(22)00691-1 DE-627 ger DE-627 rakwb eng 500 VZ 33.25 bkl 31.00 bkl Wang, Mengyang verfasserin aut Porous Fe, N co-doped carbon with high electrocatalytic oxygen reduction reaction performance in Zn-air battery 2022transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Non-Pt electrocatalysts for oxygen reduction reactions (ORR) have been developed using metal and nitrogen co-doped carbon electrocatalysts. However, challenges remain regarding the porosity of the catalyst, distribution of active sites, and the easy aggregation of the metal components. Herein, we report a bottom-up preparation strategy to obtain a porous ethynyl-linked conjugated microporous polymer (CMP) precursor containing triazine units and bipyridine, ensuring high N content and coordination with Fe3+. The Fe doped CMP is then carbonization into a Fe, N co-doped nanoporous carbon material (BPCMP-Fe-800), which can be taken as the electrocatalyst in ORR. BPCMP-Fe-800 catalyst exhibits electrocatalytic performance dominated by 4e− transfer mechanism with the onset potential of 0.97 V, half-wave potential of 0.85 V, and higher kinetic current density of 11.3 mA cm−2 (0.8 V). In addition, when applied as cathode electrocatalyst in zinc-air batteries, BPCMP-Fe-800 displays more competitive power density (179.5 mW cm−2) and specific capacity (790.5 mAh g−1) compared with Pt/C. Our study demonstrates a general and facile approach for porous Fe, N co-doped carbon with the potential as alternatives to Pt catalysts for efficient ORR catalytic performances and provides new insights of multi-atom catalysts for other energy conversion related catalytic reactions. Non-Pt electrocatalysts for oxygen reduction reactions (ORR) have been developed using metal and nitrogen co-doped carbon electrocatalysts. However, challenges remain regarding the porosity of the catalyst, distribution of active sites, and the easy aggregation of the metal components. Herein, we report a bottom-up preparation strategy to obtain a porous ethynyl-linked conjugated microporous polymer (CMP) precursor containing triazine units and bipyridine, ensuring high N content and coordination with Fe3+. The Fe doped CMP is then carbonization into a Fe, N co-doped nanoporous carbon material (BPCMP-Fe-800), which can be taken as the electrocatalyst in ORR. BPCMP-Fe-800 catalyst exhibits electrocatalytic performance dominated by 4e− transfer mechanism with the onset potential of 0.97 V, half-wave potential of 0.85 V, and higher kinetic current density of 11.3 mA cm−2 (0.8 V). In addition, when applied as cathode electrocatalyst in zinc-air batteries, BPCMP-Fe-800 displays more competitive power density (179.5 mW cm−2) and specific capacity (790.5 mAh g−1) compared with Pt/C. Our study demonstrates a general and facile approach for porous Fe, N co-doped carbon with the potential as alternatives to Pt catalysts for efficient ORR catalytic performances and provides new insights of multi-atom catalysts for other energy conversion related catalytic reactions. Bipyridine Elsevier Oxygen reduction reaction Elsevier Conjugated microporous polymer Elsevier Porous carbon Elsevier Fe Elsevier N co-doping Elsevier Cao, Zuolin oth Li, Longyu oth Ren, Shijie oth Enthalten in Elsevier Science Zhao, Zhi-Dan ELSEVIER Dynamic patterns of open review process 2021 an international journal sponsored by the American Carbon Society Amsterdam [u.a.] (DE-627)ELV006580718 volume:200 year:2022 day:5 month:11 pages:337-346 extent:10 https://doi.org/10.1016/j.carbon.2022.08.068 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 33.25 Thermodynamik statistische Physik VZ 31.00 Mathematik: Allgemeines VZ AR 200 2022 5 1105 337-346 10 |
allfields_unstemmed |
10.1016/j.carbon.2022.08.068 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001909.pica (DE-627)ELV059023384 (ELSEVIER)S0008-6223(22)00691-1 DE-627 ger DE-627 rakwb eng 500 VZ 33.25 bkl 31.00 bkl Wang, Mengyang verfasserin aut Porous Fe, N co-doped carbon with high electrocatalytic oxygen reduction reaction performance in Zn-air battery 2022transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Non-Pt electrocatalysts for oxygen reduction reactions (ORR) have been developed using metal and nitrogen co-doped carbon electrocatalysts. However, challenges remain regarding the porosity of the catalyst, distribution of active sites, and the easy aggregation of the metal components. Herein, we report a bottom-up preparation strategy to obtain a porous ethynyl-linked conjugated microporous polymer (CMP) precursor containing triazine units and bipyridine, ensuring high N content and coordination with Fe3+. The Fe doped CMP is then carbonization into a Fe, N co-doped nanoporous carbon material (BPCMP-Fe-800), which can be taken as the electrocatalyst in ORR. BPCMP-Fe-800 catalyst exhibits electrocatalytic performance dominated by 4e− transfer mechanism with the onset potential of 0.97 V, half-wave potential of 0.85 V, and higher kinetic current density of 11.3 mA cm−2 (0.8 V). In addition, when applied as cathode electrocatalyst in zinc-air batteries, BPCMP-Fe-800 displays more competitive power density (179.5 mW cm−2) and specific capacity (790.5 mAh g−1) compared with Pt/C. Our study demonstrates a general and facile approach for porous Fe, N co-doped carbon with the potential as alternatives to Pt catalysts for efficient ORR catalytic performances and provides new insights of multi-atom catalysts for other energy conversion related catalytic reactions. Non-Pt electrocatalysts for oxygen reduction reactions (ORR) have been developed using metal and nitrogen co-doped carbon electrocatalysts. However, challenges remain regarding the porosity of the catalyst, distribution of active sites, and the easy aggregation of the metal components. Herein, we report a bottom-up preparation strategy to obtain a porous ethynyl-linked conjugated microporous polymer (CMP) precursor containing triazine units and bipyridine, ensuring high N content and coordination with Fe3+. The Fe doped CMP is then carbonization into a Fe, N co-doped nanoporous carbon material (BPCMP-Fe-800), which can be taken as the electrocatalyst in ORR. BPCMP-Fe-800 catalyst exhibits electrocatalytic performance dominated by 4e− transfer mechanism with the onset potential of 0.97 V, half-wave potential of 0.85 V, and higher kinetic current density of 11.3 mA cm−2 (0.8 V). In addition, when applied as cathode electrocatalyst in zinc-air batteries, BPCMP-Fe-800 displays more competitive power density (179.5 mW cm−2) and specific capacity (790.5 mAh g−1) compared with Pt/C. Our study demonstrates a general and facile approach for porous Fe, N co-doped carbon with the potential as alternatives to Pt catalysts for efficient ORR catalytic performances and provides new insights of multi-atom catalysts for other energy conversion related catalytic reactions. Bipyridine Elsevier Oxygen reduction reaction Elsevier Conjugated microporous polymer Elsevier Porous carbon Elsevier Fe Elsevier N co-doping Elsevier Cao, Zuolin oth Li, Longyu oth Ren, Shijie oth Enthalten in Elsevier Science Zhao, Zhi-Dan ELSEVIER Dynamic patterns of open review process 2021 an international journal sponsored by the American Carbon Society Amsterdam [u.a.] (DE-627)ELV006580718 volume:200 year:2022 day:5 month:11 pages:337-346 extent:10 https://doi.org/10.1016/j.carbon.2022.08.068 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 33.25 Thermodynamik statistische Physik VZ 31.00 Mathematik: Allgemeines VZ AR 200 2022 5 1105 337-346 10 |
allfieldsGer |
10.1016/j.carbon.2022.08.068 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001909.pica (DE-627)ELV059023384 (ELSEVIER)S0008-6223(22)00691-1 DE-627 ger DE-627 rakwb eng 500 VZ 33.25 bkl 31.00 bkl Wang, Mengyang verfasserin aut Porous Fe, N co-doped carbon with high electrocatalytic oxygen reduction reaction performance in Zn-air battery 2022transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Non-Pt electrocatalysts for oxygen reduction reactions (ORR) have been developed using metal and nitrogen co-doped carbon electrocatalysts. However, challenges remain regarding the porosity of the catalyst, distribution of active sites, and the easy aggregation of the metal components. Herein, we report a bottom-up preparation strategy to obtain a porous ethynyl-linked conjugated microporous polymer (CMP) precursor containing triazine units and bipyridine, ensuring high N content and coordination with Fe3+. The Fe doped CMP is then carbonization into a Fe, N co-doped nanoporous carbon material (BPCMP-Fe-800), which can be taken as the electrocatalyst in ORR. BPCMP-Fe-800 catalyst exhibits electrocatalytic performance dominated by 4e− transfer mechanism with the onset potential of 0.97 V, half-wave potential of 0.85 V, and higher kinetic current density of 11.3 mA cm−2 (0.8 V). In addition, when applied as cathode electrocatalyst in zinc-air batteries, BPCMP-Fe-800 displays more competitive power density (179.5 mW cm−2) and specific capacity (790.5 mAh g−1) compared with Pt/C. Our study demonstrates a general and facile approach for porous Fe, N co-doped carbon with the potential as alternatives to Pt catalysts for efficient ORR catalytic performances and provides new insights of multi-atom catalysts for other energy conversion related catalytic reactions. Non-Pt electrocatalysts for oxygen reduction reactions (ORR) have been developed using metal and nitrogen co-doped carbon electrocatalysts. However, challenges remain regarding the porosity of the catalyst, distribution of active sites, and the easy aggregation of the metal components. Herein, we report a bottom-up preparation strategy to obtain a porous ethynyl-linked conjugated microporous polymer (CMP) precursor containing triazine units and bipyridine, ensuring high N content and coordination with Fe3+. The Fe doped CMP is then carbonization into a Fe, N co-doped nanoporous carbon material (BPCMP-Fe-800), which can be taken as the electrocatalyst in ORR. BPCMP-Fe-800 catalyst exhibits electrocatalytic performance dominated by 4e− transfer mechanism with the onset potential of 0.97 V, half-wave potential of 0.85 V, and higher kinetic current density of 11.3 mA cm−2 (0.8 V). In addition, when applied as cathode electrocatalyst in zinc-air batteries, BPCMP-Fe-800 displays more competitive power density (179.5 mW cm−2) and specific capacity (790.5 mAh g−1) compared with Pt/C. Our study demonstrates a general and facile approach for porous Fe, N co-doped carbon with the potential as alternatives to Pt catalysts for efficient ORR catalytic performances and provides new insights of multi-atom catalysts for other energy conversion related catalytic reactions. Bipyridine Elsevier Oxygen reduction reaction Elsevier Conjugated microporous polymer Elsevier Porous carbon Elsevier Fe Elsevier N co-doping Elsevier Cao, Zuolin oth Li, Longyu oth Ren, Shijie oth Enthalten in Elsevier Science Zhao, Zhi-Dan ELSEVIER Dynamic patterns of open review process 2021 an international journal sponsored by the American Carbon Society Amsterdam [u.a.] (DE-627)ELV006580718 volume:200 year:2022 day:5 month:11 pages:337-346 extent:10 https://doi.org/10.1016/j.carbon.2022.08.068 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 33.25 Thermodynamik statistische Physik VZ 31.00 Mathematik: Allgemeines VZ AR 200 2022 5 1105 337-346 10 |
allfieldsSound |
10.1016/j.carbon.2022.08.068 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001909.pica (DE-627)ELV059023384 (ELSEVIER)S0008-6223(22)00691-1 DE-627 ger DE-627 rakwb eng 500 VZ 33.25 bkl 31.00 bkl Wang, Mengyang verfasserin aut Porous Fe, N co-doped carbon with high electrocatalytic oxygen reduction reaction performance in Zn-air battery 2022transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Non-Pt electrocatalysts for oxygen reduction reactions (ORR) have been developed using metal and nitrogen co-doped carbon electrocatalysts. However, challenges remain regarding the porosity of the catalyst, distribution of active sites, and the easy aggregation of the metal components. Herein, we report a bottom-up preparation strategy to obtain a porous ethynyl-linked conjugated microporous polymer (CMP) precursor containing triazine units and bipyridine, ensuring high N content and coordination with Fe3+. The Fe doped CMP is then carbonization into a Fe, N co-doped nanoporous carbon material (BPCMP-Fe-800), which can be taken as the electrocatalyst in ORR. BPCMP-Fe-800 catalyst exhibits electrocatalytic performance dominated by 4e− transfer mechanism with the onset potential of 0.97 V, half-wave potential of 0.85 V, and higher kinetic current density of 11.3 mA cm−2 (0.8 V). In addition, when applied as cathode electrocatalyst in zinc-air batteries, BPCMP-Fe-800 displays more competitive power density (179.5 mW cm−2) and specific capacity (790.5 mAh g−1) compared with Pt/C. Our study demonstrates a general and facile approach for porous Fe, N co-doped carbon with the potential as alternatives to Pt catalysts for efficient ORR catalytic performances and provides new insights of multi-atom catalysts for other energy conversion related catalytic reactions. Non-Pt electrocatalysts for oxygen reduction reactions (ORR) have been developed using metal and nitrogen co-doped carbon electrocatalysts. However, challenges remain regarding the porosity of the catalyst, distribution of active sites, and the easy aggregation of the metal components. Herein, we report a bottom-up preparation strategy to obtain a porous ethynyl-linked conjugated microporous polymer (CMP) precursor containing triazine units and bipyridine, ensuring high N content and coordination with Fe3+. The Fe doped CMP is then carbonization into a Fe, N co-doped nanoporous carbon material (BPCMP-Fe-800), which can be taken as the electrocatalyst in ORR. BPCMP-Fe-800 catalyst exhibits electrocatalytic performance dominated by 4e− transfer mechanism with the onset potential of 0.97 V, half-wave potential of 0.85 V, and higher kinetic current density of 11.3 mA cm−2 (0.8 V). In addition, when applied as cathode electrocatalyst in zinc-air batteries, BPCMP-Fe-800 displays more competitive power density (179.5 mW cm−2) and specific capacity (790.5 mAh g−1) compared with Pt/C. Our study demonstrates a general and facile approach for porous Fe, N co-doped carbon with the potential as alternatives to Pt catalysts for efficient ORR catalytic performances and provides new insights of multi-atom catalysts for other energy conversion related catalytic reactions. Bipyridine Elsevier Oxygen reduction reaction Elsevier Conjugated microporous polymer Elsevier Porous carbon Elsevier Fe Elsevier N co-doping Elsevier Cao, Zuolin oth Li, Longyu oth Ren, Shijie oth Enthalten in Elsevier Science Zhao, Zhi-Dan ELSEVIER Dynamic patterns of open review process 2021 an international journal sponsored by the American Carbon Society Amsterdam [u.a.] (DE-627)ELV006580718 volume:200 year:2022 day:5 month:11 pages:337-346 extent:10 https://doi.org/10.1016/j.carbon.2022.08.068 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 33.25 Thermodynamik statistische Physik VZ 31.00 Mathematik: Allgemeines VZ AR 200 2022 5 1105 337-346 10 |
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Porous Fe, N co-doped carbon with high electrocatalytic oxygen reduction reaction performance in Zn-air battery |
abstract |
Non-Pt electrocatalysts for oxygen reduction reactions (ORR) have been developed using metal and nitrogen co-doped carbon electrocatalysts. However, challenges remain regarding the porosity of the catalyst, distribution of active sites, and the easy aggregation of the metal components. Herein, we report a bottom-up preparation strategy to obtain a porous ethynyl-linked conjugated microporous polymer (CMP) precursor containing triazine units and bipyridine, ensuring high N content and coordination with Fe3+. The Fe doped CMP is then carbonization into a Fe, N co-doped nanoporous carbon material (BPCMP-Fe-800), which can be taken as the electrocatalyst in ORR. BPCMP-Fe-800 catalyst exhibits electrocatalytic performance dominated by 4e− transfer mechanism with the onset potential of 0.97 V, half-wave potential of 0.85 V, and higher kinetic current density of 11.3 mA cm−2 (0.8 V). In addition, when applied as cathode electrocatalyst in zinc-air batteries, BPCMP-Fe-800 displays more competitive power density (179.5 mW cm−2) and specific capacity (790.5 mAh g−1) compared with Pt/C. Our study demonstrates a general and facile approach for porous Fe, N co-doped carbon with the potential as alternatives to Pt catalysts for efficient ORR catalytic performances and provides new insights of multi-atom catalysts for other energy conversion related catalytic reactions. |
abstractGer |
Non-Pt electrocatalysts for oxygen reduction reactions (ORR) have been developed using metal and nitrogen co-doped carbon electrocatalysts. However, challenges remain regarding the porosity of the catalyst, distribution of active sites, and the easy aggregation of the metal components. Herein, we report a bottom-up preparation strategy to obtain a porous ethynyl-linked conjugated microporous polymer (CMP) precursor containing triazine units and bipyridine, ensuring high N content and coordination with Fe3+. The Fe doped CMP is then carbonization into a Fe, N co-doped nanoporous carbon material (BPCMP-Fe-800), which can be taken as the electrocatalyst in ORR. BPCMP-Fe-800 catalyst exhibits electrocatalytic performance dominated by 4e− transfer mechanism with the onset potential of 0.97 V, half-wave potential of 0.85 V, and higher kinetic current density of 11.3 mA cm−2 (0.8 V). In addition, when applied as cathode electrocatalyst in zinc-air batteries, BPCMP-Fe-800 displays more competitive power density (179.5 mW cm−2) and specific capacity (790.5 mAh g−1) compared with Pt/C. Our study demonstrates a general and facile approach for porous Fe, N co-doped carbon with the potential as alternatives to Pt catalysts for efficient ORR catalytic performances and provides new insights of multi-atom catalysts for other energy conversion related catalytic reactions. |
abstract_unstemmed |
Non-Pt electrocatalysts for oxygen reduction reactions (ORR) have been developed using metal and nitrogen co-doped carbon electrocatalysts. However, challenges remain regarding the porosity of the catalyst, distribution of active sites, and the easy aggregation of the metal components. Herein, we report a bottom-up preparation strategy to obtain a porous ethynyl-linked conjugated microporous polymer (CMP) precursor containing triazine units and bipyridine, ensuring high N content and coordination with Fe3+. The Fe doped CMP is then carbonization into a Fe, N co-doped nanoporous carbon material (BPCMP-Fe-800), which can be taken as the electrocatalyst in ORR. BPCMP-Fe-800 catalyst exhibits electrocatalytic performance dominated by 4e− transfer mechanism with the onset potential of 0.97 V, half-wave potential of 0.85 V, and higher kinetic current density of 11.3 mA cm−2 (0.8 V). In addition, when applied as cathode electrocatalyst in zinc-air batteries, BPCMP-Fe-800 displays more competitive power density (179.5 mW cm−2) and specific capacity (790.5 mAh g−1) compared with Pt/C. Our study demonstrates a general and facile approach for porous Fe, N co-doped carbon with the potential as alternatives to Pt catalysts for efficient ORR catalytic performances and provides new insights of multi-atom catalysts for other energy conversion related catalytic reactions. |
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Porous Fe, N co-doped carbon with high electrocatalytic oxygen reduction reaction performance in Zn-air battery |
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