Oxygen vacancy enables electrochemical N-2 fixation over WO3 with tailored structure

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dc.contributor.authorSun, Zhenyuko
dc.contributor.authorHuo, Rupengko
dc.contributor.authorChoi, Changhyeokko
dc.contributor.authorHong, Songko
dc.contributor.authorWu, Tai-Singko
dc.contributor.authorQiu, Jieshanko
dc.contributor.authorYan, Chaoko
dc.contributor.authorHan, Zishanko
dc.contributor.authorLiu, Yongchaoko
dc.contributor.authorSoo, Yun-Liangko
dc.contributor.authorJung, Yousungko
dc.date.accessioned2019-07-29T06:20:03Z-
dc.date.available2019-07-29T06:20:03Z-
dc.date.created2019-07-29-
dc.date.issued2019-08-
dc.identifier.citationNANO ENERGY, v.62, pp.869 - 875-
dc.identifier.issn2211-2855-
dc.identifier.urihttp://hdl.handle.net/10203/263868-
dc.description.abstractElectrochemical ammonia production under ambient conditions remains a grand challenge. Herein, we demonstrate that efficient binding and reduction of N-2 at low overpotentials can be realized over WO3 with tailored surface oxygen vacancies, as predicted by density functional theory studies and evidenced by an NH3 yield rate of 4.2 mu g(NH3) h(-1) mg(cat)(-1) and a faradaic efficiency of 6.8% at -0.12 V (vs. the reversible hydrogen electrode). A high NH3 faradaic efficiency of up to 12.8% is obtained at an overpotential of only 80 mV, which can even be further improved by increasing the electrolyte pH to suppress the competing hydrogen evolution reaction. This low-cost metal oxide holds great appeal as one of the most promising electrocatalysts for efficient N-2 fixation.-
dc.languageEnglish-
dc.publisherELSEVIER SCIENCE BV-
dc.titleOxygen vacancy enables electrochemical N-2 fixation over WO3 with tailored structure-
dc.typeArticle-
dc.identifier.wosid000474636100093-
dc.identifier.scopusid2-s2.0-85067339170-
dc.type.rimsART-
dc.citation.volume62-
dc.citation.beginningpage869-
dc.citation.endingpage875-
dc.citation.publicationnameNANO ENERGY-
dc.identifier.doi10.1016/j.nanoen.2019.06.019-
dc.contributor.localauthorJung, Yousung-
dc.contributor.nonIdAuthorSun, Zhenyu-
dc.contributor.nonIdAuthorHuo, Rupeng-
dc.contributor.nonIdAuthorHong, Song-
dc.contributor.nonIdAuthorWu, Tai-Sing-
dc.contributor.nonIdAuthorQiu, Jieshan-
dc.contributor.nonIdAuthorYan, Chao-
dc.contributor.nonIdAuthorHan, Zishan-
dc.contributor.nonIdAuthorLiu, Yongchao-
dc.contributor.nonIdAuthorSoo, Yun-Liang-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorWO3 nanosheets-
dc.subject.keywordAuthorNitrogen reduction-
dc.subject.keywordAuthorDefect engineering-
dc.subject.keywordAuthorElectrocatalyst-
dc.subject.keywordPlusTOTAL-ENERGY CALCULATIONS-
dc.subject.keywordPlusAMBIENT CONDITIONS-
dc.subject.keywordPlusAMMONIA-SYNTHESIS-
dc.subject.keywordPlusNITROGEN REDUCTION-
dc.subject.keywordPlusTUNGSTEN TRIOXIDE-
dc.subject.keywordPlusWATER-
dc.subject.keywordPlusTEMPERATURE-
dc.subject.keywordPlusCATALYSTS-
dc.subject.keywordPlusCARBON-
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