Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Shunichi Fukuzumi | * |
dc.date.accessioned | 2016-08-28T12:08:02Z | - |
dc.date.available | 2016-08-28T12:08:02Z | - |
dc.date.issued | 2011 | * |
dc.identifier.issn | 1754-5692 | * |
dc.identifier.other | OAK-7817 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/221823 | - |
dc.description.abstract | This perspective focuses on reaction mechanisms of hydrogen (H 2) evolution with homogeneous and heterogeneous catalysts. First, photocatalytic H 2 evolution systems with homogeneous catalysts are discussed from the viewpoint of how to increase the efficiency of the two-electron process for the H 2 evolution via photoinduced electron-transfer reactions of metal complexes. Two molecules of the one-electron reduced species of [Rh III(Cp*)(bpy)(H 2O)](SO 4) (bpy = 2,2′-bipyridine) and [Ir III(Cp*)(H 2O)(bpm) Ru II(bpy) 2](SO 4) 2 (bpm = 2,2′-bipyrimidine) produced by photoinduced electron-transfer reactions are converted to the two-electron reduced complexes suitable for H 2 generation by disproportionation. The photocatalytic mechanism of H 2 evolution using Pt nanoparticles as a catalyst is also discussed based on the kinetic analysis of the electron-transfer rates from a photogenerated electron donor to Pt nanoparticles, which are comparable to the overall H 2 evolution rates. The electron-transfer rates become faster with increasing proton concentrations with an inverse kinetic isotope effect, when H + is replaced by D +. The size and shape effects of Pt nanoparticles on the rates of hydrogen evolution and the electron-transfer reaction are examined to optimize the catalytic efficiency. Finally, catalytic H 2 evolution systems from H 2 storage molecules are described including shape dependent catalytic activity of Co 3O 4 particles for ammonia borane hydrolysis and a large tunneling effect observed in decomposition of formic acid with [Ir III(Cp*)(H 2O)(bpm)Ru II(bpy) 2](SO 4) 2. © 2011 The Royal Society of Chemistry. | * |
dc.language | English | * |
dc.title | Catalytic mechanisms of hydrogen evolution with homogeneous and heterogeneous catalysts | * |
dc.type | Article | * |
dc.relation.issue | 8 | * |
dc.relation.volume | 4 | * |
dc.relation.index | SCI | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.startpage | 2754 | * |
dc.relation.lastpage | 2766 | * |
dc.relation.journaltitle | Energy and Environmental Science | * |
dc.identifier.doi | 10.1039/c1ee01551f | * |
dc.identifier.wosid | WOS:000293213600013 | * |
dc.identifier.scopusid | 2-s2.0-79960999630 | * |
dc.author.google | Fukuzumi S. | * |
dc.author.google | Yamada Y. | * |
dc.author.google | Suenobu T. | * |
dc.author.google | Ohkubo K. | * |
dc.author.google | Kotani H. | * |
dc.contributor.scopusid | Shunichi Fukuzumi(35430038100;58409757400) | * |
dc.date.modifydate | 20240401081001 | * |