Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김성진 | * |
dc.contributor.author | 김영미 | * |
dc.contributor.author | 김진흥 | * |
dc.date.accessioned | 2016-08-27T04:08:03Z | - |
dc.date.available | 2016-08-27T04:08:03Z | - |
dc.date.issued | 2014 | * |
dc.identifier.issn | 1932-7447 | * |
dc.identifier.other | OAK-12141 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/216949 | - |
dc.description.abstract | Photochemical hydrogen production is carried out using molecular Rh complexes and sodium formate in the presence of platinum nanoparticles (PtNPs) in aqueous buffer solution. Visible-light-driven photocatalytic reactions for hydrogen production with and without nicotinamide adenine dinucleotide (NAD(+)) follow two different pathways. Complex [Cp*Rh(bpy)(OH2)](2+) selectively reduces NAD(+) to generate NADH using formate as a proton and electron donor and the chemically generated NADH is sequentially used by PtNPs upon photoactivation of eosin Y to produce hydrogen. However, hydrogen is also produced in photoreactions of the Rh catalyst and PtNPs with formate in the absence of NAD(+) and eosin Y. The second pathway for hydrogen production was performed under the conditions without NAD(+) and eosin Y and derived from a direct electron transfer from in situ generated rhodium(III)-hydride species to photoexcited PtNPs. The direct electron transfer from the rhodium-hydride species to visible-light-driven PtNPs was first observed in this study. These two pathways for hydrogen production showed different rate-limiting steps based on a Hammett plot using Rh catalysts containing electron-donating and electron-withdrawing groups. Kinetic isotope effects as well as Hammett plot supported the rate-limiting step of the NADH generation for the first pathway of hydrogen production and the RhH formation for the second pathway. | * |
dc.language | English | * |
dc.publisher | AMER CHEMICAL SOC | * |
dc.title | Visible-Light-Driven Photoproduction of Hydrogen Using Rhodium Catalysts and Platinum Nanoparticles with Formate | * |
dc.type | Article | * |
dc.relation.issue | 45 | * |
dc.relation.volume | 118 | * |
dc.relation.index | SCI | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.startpage | 25844 | * |
dc.relation.lastpage | 25852 | * |
dc.relation.journaltitle | JOURNAL OF PHYSICAL CHEMISTRY C | * |
dc.identifier.doi | 10.1021/jp504876w | * |
dc.identifier.wosid | WOS:000344978000003 | * |
dc.author.google | Kim, Soojin | * |
dc.author.google | Lee, Ga Ye | * |
dc.author.google | Baeg, Jin-Ook | * |
dc.author.google | Kim, Youngmee | * |
dc.author.google | Kim, Sung-Jin | * |
dc.author.google | Kim, Jinheung | * |
dc.contributor.scopusid | 김성진(56812714700) | * |
dc.contributor.scopusid | 김영미(57207443602) | * |
dc.contributor.scopusid | 김진흥(8580015800) | * |
dc.date.modifydate | 20240301081003 | * |