Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 이정호 | - |
dc.date.accessioned | 2019-03-13T07:30:24Z | - |
dc.date.available | 2019-03-13T07:30:24Z | - |
dc.date.issued | 2015-05 | - |
dc.identifier.citation | JOURNAL OF MATERIALS CHEMISTRY A, v. 3, No. 24. Page. 12810-12819 | en_US |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.issn | 2050-7496 | - |
dc.identifier.uri | http://pubs.rsc.org/-/content/articlehtml/2015/ta/c5ta02656c | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/100759 | - |
dc.description.abstract | Electrocatalytic hydrogen evolution using non-precious metals or metal-free catalysts is critically necessary because platinum-based electrocatalysts are greatly limited in scalable commercialization of hydrogen generation due to their high cost. Here, we report the facile synthesis of metal-free hybrid catalysts, in which graphitic carbon nitride (g-C3N4) is coupled with nanoporous graphene doped by S and Se. The S and Se co-doped hybrid catalyst (g-C3N4@S–Se-pGr) reveals superior electrocatalytic performances, including an exchange current density of 6.27 × 10−6 A cm−2, an on-set potential of 0.092 V, a Tafel slope of 86 mV dec−1, an adsorption free energy of −0.13 eV, and long-term stability comparable to those of commercial Pt/C catalysts. Volcano plots showing the hydrogen evolution activity versus adsorption free energy are also compatible with those of the conventional metal catalysts. Our strategy has the potential to allow a new paradigm for the development of high-performance metal-free electrocatalysts for energy conversion devices. | en_US |
dc.description.sponsorship | This work was supported by a grant of the New & Renewable Energy Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) (no. 20123010010160) funded by the Korean Ministry of Trade, Industry, and Energy. This work was also supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (no. 2011-0028604). | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | ROYAL SOC CHEMISTRY | en_US |
dc.subject | OXYGEN REDUCTION | en_US |
dc.subject | EFFICIENT ELECTROCATALYST | en_US |
dc.subject | MOLYBDENUM PHOSPHIDE | en_US |
dc.subject | MOS2 NANOSHEETS | en_US |
dc.subject | CATALYST | en_US |
dc.subject | OXIDATION | en_US |
dc.subject | NITROGEN; OXIDE | en_US |
dc.subject | NANOPARTICLES | en_US |
dc.subject | ELECTRODES | en_US |
dc.title | Electrocatalytic hydrogen evolution using graphitic carbon nitride coupled with nanoporous graphene co-doped by S and Se | en_US |
dc.type | Article | en_US |
dc.relation.volume | 3 | - |
dc.identifier.doi | 10.1039/c5ta02656c | - |
dc.relation.page | 12810-12819 | - |
dc.relation.journal | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.contributor.googleauthor | Shinde, SS | - |
dc.contributor.googleauthor | Sami, A | - |
dc.contributor.googleauthor | Lee, JH | - |
dc.relation.code | 2015000269 | - |
dc.sector.campus | E | - |
dc.sector.daehak | COLLEGE OF ENGINEERING SCIENCES[E] | - |
dc.sector.department | DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING | - |
dc.identifier.pid | jungho | - |
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