DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ngo, Quang-Tung | ko |
dc.contributor.author | Omelianovych, Oleksii | ko |
dc.contributor.author | Nguyen, Van-Toan | ko |
dc.contributor.author | Ahn, Byung Tae | ko |
dc.contributor.author | Lee, Kyu-Bock | ko |
dc.contributor.author | Lee, Gyoung-Ja | ko |
dc.contributor.author | Larina, Liudmila L. | ko |
dc.contributor.author | Choi, Ho-Suk | ko |
dc.date.accessioned | 2021-11-08T06:40:20Z | - |
dc.date.available | 2021-11-08T06:40:20Z | - |
dc.date.created | 2021-09-28 | - |
dc.date.created | 2021-09-28 | - |
dc.date.created | 2021-09-28 | - |
dc.date.created | 2021-09-28 | - |
dc.date.issued | 2021-11 | - |
dc.identifier.citation | JOURNAL OF MATERIALS CHEMISTRY A, v.9, no.42 | - |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.uri | http://hdl.handle.net/10203/288911 | - |
dc.description.abstract | Low-cost Ni@C core-shell nanoparticles (NPs) were synthesized by means of the electrical explosion of wire method and were applied as a bifunctional catalyst for overall water splitting. XPS, HRTEM, and BET results revealed that the carbon shell effectively protects the metallic core from oxidation while providing a porous structure that yields a high surface area, which in turn enhances the catalytic activity. Through material analysis, we established a link between synthesis conditions and resulting morphology, electronic and crystal structure of the outer layers of Ni@C NPs. Thanks to the optimum morphology and favorable shell electronic structure, Ni@C(15%) showed superior catalytic activity. An electrolyzer based on bifunctional Ni@C(15%) required only 1.71 V of voltage to deliver 10 mA cm(-2). The overpotential for water splitting is 0.12 V lower than that for a Ni benchmark electrolyzer. A stable and scalable PV-electrolysis system for water splitting that is fully based on all-inorganic CIGS PV and Ni@C(15%) was constructed. Water splitting is driven at a high current of similar to 10 mA under the illumination of 100 mW cm(-2), corresponding to a solar-to-hydrogen (STH) efficiency of 8.14% with 11.65% efficiency of the sub-module at the operating point. The efficiency of the STH device can be increased up to 10% by increasing the operating current through a further decrease of the Ni@C(15%) catalyst overpotential by optimization of its electronic structure. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | An economically sustainable bifunctional Ni@C catalyst in a solar-to-hydrogen device employing a CIGS submodule | - |
dc.type | Article | - |
dc.identifier.wosid | 000695664300001 | - |
dc.identifier.scopusid | 2-s2.0-85118770305 | - |
dc.type.rims | ART | - |
dc.citation.volume | 9 | - |
dc.citation.issue | 42 | - |
dc.citation.publicationname | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.identifier.doi | 10.1039/d1ta03474j | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Ahn, Byung Tae | - |
dc.contributor.nonIdAuthor | Ngo, Quang-Tung | - |
dc.contributor.nonIdAuthor | Omelianovych, Oleksii | - |
dc.contributor.nonIdAuthor | Nguyen, Van-Toan | - |
dc.contributor.nonIdAuthor | Lee, Kyu-Bock | - |
dc.contributor.nonIdAuthor | Lee, Gyoung-Ja | - |
dc.contributor.nonIdAuthor | Larina, Liudmila L. | - |
dc.contributor.nonIdAuthor | Choi, Ho-Suk | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | EVOLUTION REACTION | - |
dc.subject.keywordPlus | DIFFERENT MORPHOLOGIES | - |
dc.subject.keywordPlus | METAL | - |
dc.subject.keywordPlus | ELECTROCATALYSTS | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | FILM | - |
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