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Heavily Doped and Highly Conductive Hierarchical Nanoporous Graphene for Electrochemical Hydrogen Production

Heavy chemical doping and high electrical conductivity are two key factors for metal‐free graphene electrocatalysts to realize superior catalytic performance toward hydrogen evolution. However, heavy chemical doping usually leads to the reduction of electrical conductivity because the catalytically... Full description

Journal Title: Angewandte Chemie 01 October 2018, Vol.130(40), pp.13486-13491
Main Author: Chen, Linghan
Other Authors: Han, Jiuhui , Ito, Yoshikazu , Fujita, Takeshi , Huang, Gang , Hu, Kailong , Hirata, Akihiko , Watanabe, Kentaro , Chen, Mingwei
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0044-8249 ; E-ISSN: 1521-3757 ; DOI: 10.1002/ange.201809315
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recordid: wj10.1002/ange.201809315
title: Heavily Doped and Highly Conductive Hierarchical Nanoporous Graphene for Electrochemical Hydrogen Production
format: Article
creator:
  • Chen, Linghan
  • Han, Jiuhui
  • Ito, Yoshikazu
  • Fujita, Takeshi
  • Huang, Gang
  • Hu, Kailong
  • Hirata, Akihiko
  • Watanabe, Kentaro
  • Chen, Mingwei
subjects:
  • Chemische Dampfabscheidung
  • Chemische Dotierung
  • Elektrische Leitfähigkeit
  • Graphen
  • Wasserstoffentwicklung
ispartof: Angewandte Chemie, 01 October 2018, Vol.130(40), pp.13486-13491
description: Heavy chemical doping and high electrical conductivity are two key factors for metal‐free graphene electrocatalysts to realize superior catalytic performance toward hydrogen evolution. However, heavy chemical doping usually leads to the reduction of electrical conductivity because the catalytically active dopants give rise to additional electron scattering and hence increased electrical resistance. A hierarchical nanoporous graphene, which is comprised of heavily chemical doped domains and a highly conductive pure graphene substrate, is reported. The hierarchical nanoporous graphene can host a remarkably high concentration of N and S dopants up to 9.0 at % without sacrificing the excellent electrical conductivity of graphene. The combination of heavy chemical doping and high conductivity results in high catalytic activity toward electrochemical hydrogen production. This study has an important implication in developing multi‐functional electrocatalysts by 3D nanoarchitecture design. mit stark dotierten katalytischen Domänen auf hoch leitfähigen Substraten wurde durch ein zweistufiges Dampfabscheidungsverfahren hergestellt. Die nanoskopische Architektur hebt die wechselseitige Beeinträchtigung von Katalyseaktivität und Leitfähigkeit in chemisch dotiertem Graphen auf und weist einen neuen Weg für die Entwicklung leistungsfähiger multifunktionaler Graphen‐Katalysatoren.
language: eng
source:
identifier: ISSN: 0044-8249 ; E-ISSN: 1521-3757 ; DOI: 10.1002/ange.201809315
fulltext: fulltext
issn:
  • 0044-8249
  • 00448249
  • 1521-3757
  • 15213757
url: Link


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titleHeavily Doped and Highly Conductive Hierarchical Nanoporous Graphene for Electrochemical Hydrogen Production
creatorChen, Linghan ; Han, Jiuhui ; Ito, Yoshikazu ; Fujita, Takeshi ; Huang, Gang ; Hu, Kailong ; Hirata, Akihiko ; Watanabe, Kentaro ; Chen, Mingwei
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subjectChemische Dampfabscheidung ; Chemische Dotierung ; Elektrische Leitfähigkeit ; Graphen ; Wasserstoffentwicklung
descriptionHeavy chemical doping and high electrical conductivity are two key factors for metal‐free graphene electrocatalysts to realize superior catalytic performance toward hydrogen evolution. However, heavy chemical doping usually leads to the reduction of electrical conductivity because the catalytically active dopants give rise to additional electron scattering and hence increased electrical resistance. A hierarchical nanoporous graphene, which is comprised of heavily chemical doped domains and a highly conductive pure graphene substrate, is reported. The hierarchical nanoporous graphene can host a remarkably high concentration of N and S dopants up to 9.0 at % without sacrificing the excellent electrical conductivity of graphene. The combination of heavy chemical doping and high conductivity results in high catalytic activity toward electrochemical hydrogen production. This study has an important implication in developing multi‐functional electrocatalysts by 3D nanoarchitecture design. mit stark dotierten katalytischen Domänen auf hoch leitfähigen Substraten wurde durch ein zweistufiges Dampfabscheidungsverfahren hergestellt. Die nanoskopische Architektur hebt die wechselseitige Beeinträchtigung von Katalyseaktivität und Leitfähigkeit in chemisch dotiertem Graphen auf und weist einen neuen Weg für die Entwicklung leistungsfähiger multifunktionaler Graphen‐Katalysatoren.
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titleHeavily Doped and Highly Conductive Hierarchical Nanoporous Graphene for Electrochemical Hydrogen Production
descriptionHeavy chemical doping and high electrical conductivity are two key factors for metal‐free graphene electrocatalysts to realize superior catalytic performance toward hydrogen evolution. However, heavy chemical doping usually leads to the reduction of electrical conductivity because the catalytically active dopants give rise to additional electron scattering and hence increased electrical resistance. A hierarchical nanoporous graphene, which is comprised of heavily chemical doped domains and a highly conductive pure graphene substrate, is reported. The hierarchical nanoporous graphene can host a remarkably high concentration of N and S dopants up to 9.0 at % without sacrificing the excellent electrical conductivity of graphene. The combination of heavy chemical doping and high conductivity results in high catalytic activity toward electrochemical hydrogen production. This study has an important implication in developing multi‐functional electrocatalysts by 3D nanoarchitecture design. mit stark dotierten katalytischen Domänen auf hoch leitfähigen Substraten wurde durch ein zweistufiges Dampfabscheidungsverfahren hergestellt. Die nanoskopische Architektur hebt die wechselseitige Beeinträchtigung von Katalyseaktivität und Leitfähigkeit in chemisch dotiertem Graphen auf und weist einen neuen Weg für die Entwicklung leistungsfähiger multifunktionaler Graphen‐Katalysatoren.
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titleHeavily Doped and Highly Conductive Hierarchical Nanoporous Graphene for Electrochemical Hydrogen Production
authorChen, Linghan ; Han, Jiuhui ; Ito, Yoshikazu ; Fujita, Takeshi ; Huang, Gang ; Hu, Kailong ; Hirata, Akihiko ; Watanabe, Kentaro ; Chen, Mingwei
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abstractHeavy chemical doping and high electrical conductivity are two key factors for metal‐free graphene electrocatalysts to realize superior catalytic performance toward hydrogen evolution. However, heavy chemical doping usually leads to the reduction of electrical conductivity because the catalytically active dopants give rise to additional electron scattering and hence increased electrical resistance. A hierarchical nanoporous graphene, which is comprised of heavily chemical doped domains and a highly conductive pure graphene substrate, is reported. The hierarchical nanoporous graphene can host a remarkably high concentration of N and S dopants up to 9.0 at % without sacrificing the excellent electrical conductivity of graphene. The combination of heavy chemical doping and high conductivity results in high catalytic activity toward electrochemical hydrogen production. This study has an important implication in developing multi‐functional electrocatalysts by 3D nanoarchitecture design. mit stark dotierten katalytischen Domänen auf hoch leitfähigen Substraten wurde durch ein zweistufiges Dampfabscheidungsverfahren hergestellt. Die nanoskopische Architektur hebt die wechselseitige Beeinträchtigung von Katalyseaktivität und Leitfähigkeit in chemisch dotiertem Graphen auf und weist einen neuen Weg für die Entwicklung leistungsfähiger multifunktionaler Graphen‐Katalysatoren.
doi10.1002/ange.201809315
pages13486-13491
date2018-10-01