Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 이성철 | - |
dc.date.accessioned | 2019-12-04T02:23:26Z | - |
dc.date.available | 2019-12-04T02:23:26Z | - |
dc.date.issued | 2018-01 | - |
dc.identifier.citation | SMALL, v. 14, no. 8, Article no. UNSP 1703862 | en_US |
dc.identifier.issn | 1613-6810 | - |
dc.identifier.issn | 1613-6829 | - |
dc.identifier.uri | https://onlinelibrary.wiley.com/doi/abs/10.1002/smll.201703862 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/117073 | - |
dc.description.abstract | Electrocatalytic splitting of water is the most convincing and straight forward path to extract hydrogen, but the efficiency of this process relies heavily on the catalyst employed. Here, molybdenum sulphoselenophosphide (MoS45.1Se11.7P6.1) spheroids are reported as an active catalyst for the hydrogen evolution reaction (HER) and this is the first attempt to study on ternary anion based molybdenum chalcogenides. As-prepared MoSxSeyPz catalyst reveals a unique morphology of microspheroids capped by stretched-out nanoflakes that exhibits excellent electrocatalytic activity (j-10 mA cm(-2) @ 93 mV, Tafel slope of 50.1 mV dec(-1), TOF-0.40 s(-1)) fairly closer to the performance of platinum (Pt) and predominant to those of the pre-existing Mo-chalcogenides and phosphides. Such an increase in performance stems from the copious amount of active edge sites, the presence of nanoflakes, and high circumferential area exposed by the spheroids. Besides, the electrode with MoS45.1Se11.7P6.1 displays excellent stability in acidic medium over 10 h of continuous operation. This work paves way for improving the catalytic activity of existing Mo-chalcogenide compounds by doping suitable mixed anions and also reveals the integral role of anions as well as their synergetic effects on the surface physiochemical properties and the HER catalysis. | en_US |
dc.description.sponsorship | This work was financially supported by the Ministry of Trade, Industry & Energy(MOTIE), Korea Institute for Advancement of Technology(KIAT) through the Encouragement Program for The Industries of Economic Cooperation Region. The authors wish to thank Dr. Goli Nagaraju, for his valuable inputs on schematic illustrations. The authors thank Dr. Purushothaman Varadhan (King Abdullah University of Science and Technology, KAUST, Kingdom of Saudi Arabia) who encouraged us to pursue this topic and Dr. Dhinesh Babu Velusamy (KAUST) who spent his valuable time for helping us to achieve a clearer structure. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | WILEY-V C H VERLAG GMBH | en_US |
dc.subject | electrocatalysts | en_US |
dc.subject | hydrogen evolution reactions | en_US |
dc.subject | molybdenum sulphoselenophosphide | en_US |
dc.title | Molybdenum Sulphoselenophosphide Spheroids as an Effective Catalyst for Hydrogen Evolution Reaction | en_US |
dc.type | Article | en_US |
dc.relation.no | 8 | - |
dc.relation.volume | 14 | - |
dc.identifier.doi | 10.1002/smll.201703862 | - |
dc.relation.page | 1-9 | - |
dc.relation.journal | SMALL | - |
dc.contributor.googleauthor | Bose, Ranjith | - |
dc.contributor.googleauthor | Jothi, Vasanth Rajendiran | - |
dc.contributor.googleauthor | Koh, Beomsoo | - |
dc.contributor.googleauthor | Jung, Chiyoung | - |
dc.contributor.googleauthor | Yi, Sung Chul | - |
dc.relation.code | 2018000598 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF CHEMICAL ENGINEERING | - |
dc.identifier.pid | scyi | - |
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