Photocatalytic Hydrogen Evolution by Iridium(III)–Rhodium(III) System: Effect of the Free Ligand Addition
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
International Journal of Hydrogen Energy
ISSN: 0360-3199
, E-ISSN: 1879-3487
|
| Output data |
Year: 2016,
Volume: 41,
Number: 4,
Pages: 2592-2597
Pages count
: 6
DOI:
10.1016/j.ijhydene.2015.12.096
|
| Tags |
Catalyst design, Hydrogen evolution, Iridium, Pyridine derivatives, Rhodium |
| Authors |
Vasilchenko D.B.
1,3
,
Tkachev S.V.
1
,
Kurenkova A.Yu.
2,3
,
Kozlova E.A.
2,3
,
Kozlov D.V.
2,3
|
| Affiliations |
| 1 |
Nikolayev Institute of Inorganic Chemistry, 630090 Novosibirsk, Russia
|
| 2 |
Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia
|
| 3 |
Novosibirsk State University, 630090 Novosibirsk, Russia
|
|
Funding (2)
|
1
|
Federal Agency for Scientific Organizations
|
V.44.2.11.
|
|
2
|
Russian Foundation for Basic Research
|
15-33-20458
|
Rh(III) complexes of the general form {RhL4Cl2} with pyridine derivatives ligands (L) were used for the first time as water reduction catalysts in photocatalytic hydrogen generation process in pair with [Ir(ppy)2bpy]+ complex as a photosynthesizer. The efficiency of given Ir(III)–Rh(III) systems in the photocatalytic hydrogen generation process was found to be on the level of 20–30% which is corresponding to the highest currently achieved quantum efficiency values for homogeneous photocatalysts. Fast deactivation of the systems due to destruction of {RhL4Cl2} units was observed but it was suppressed via addition of extra amount of free L ligand in the reaction mixture. Quantum efficiency of modified in this manner [Ir(ppy)2bpy]+/{RhL4Cl2} systems achieved up to 80% value.