DataVXACS Applied Energy MaterialsPaper
journal article·2021-04-26Open access

Cocatalyst-free Photocatalytic Hydrogen Evolution with Simple Heteroleptic Iridium(III) Complexes

Govardhana Babu Bodedla, Daniel Nnaemaka Tritton, Xi Chen, Jianzhang Zhao, Zeling Guo, Ken Cham-Fai Leung, Wai-Yeung Wong, Xunjin Zhu

ACS Applied Energy Materials· Volume 4· Issue 4
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Source abstract

Abstract

A simple heteroleptic iridium(III) photosensitizer, Ir-1, containing two ligands 5-(trifluoromethyl)-2-phenylpyridine (ĈN–CF3) and bipyridine (N̂N) has for the first time been studied for cocatalyst-free photocatalytic hydrogen evolution (PHE). The complex Ir-1 produces a hydrogen production rate (ηH2) of 3.2 mmol g–1 h–1, which is over 3.6-fold higher than that of the control complex Ir-2 (0.9 mmol g–1 h–1) containing bipyridine and 2-phenylpyridine ligands without CF3 groups. The higher ηH2 of Ir-1 could be ascribed to the high light-harvesting property, longer triplet electron lifetime, and more appropriate driving force for accepting electrons from the sacrificial donor, which enable efficient charge separation and transfer of electrons for hydrogen evolution. Additionally, the photostability issues of Ir-1 and Ir-2 are addressed by the selection of suitable organic solvent/water photocatalytic systems.
Source: openalex_inverted_index · Quality: baseline

Research context

Catalysis & surfaces

OpenAlex topics: Advanced Photocatalysis Techniques · Electrocatalysts for Energy Conversion · Nanocluster Synthesis and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, P. R. China

Department of Applied Biology & Chemical Technology and Research Institute for Smart Energy, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, P. R. China

School of Chemical Engineering and State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P. R. China

Funding

Research Grants Council, University Grants Committee · National Natural Science Foundation of China · Hong Kong Polytechnic University · State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University

References (39)

Show source-provided references
1. 10.1039/c6cs00436a10.1039/c6cs00436a ↗
2. 10.1039/b903809d10.1039/b903809d ↗
3. 10.1039/c2cs35223k10.1039/c2cs35223k ↗
4. 10.1021/acscatal.9b0245710.1021/acscatal.9b02457 ↗
5. 10.1039/c8dt00887f10.1039/c8dt00887f ↗
6. 10.1039/c3ra45219k10.1039/c3ra45219k ↗
7. 10.1021/acs.accounts.5b0005810.1021/acs.accounts.5b00058 ↗
8. 10.1039/b923159p10.1039/b923159p ↗
9. 10.1039/c2ee22109h10.1039/c2ee22109h ↗
10. 10.1016/j.ccr.2008.10.01010.1016/j.ccr.2008.10.010 ↗
11. 10.1039/c4tb00284a10.1039/c4tb00284a ↗
12. 10.1021/ic302629q10.1021/ic302629q ↗
13. 10.1039/c2cs35171d10.1039/c2cs35171d ↗
14. 10.1039/c5sc04624f10.1039/c5sc04624f ↗
15. 10.1038/ncomms460110.1038/ncomms4601 ↗
16. 10.1002/adma.20090323310.1002/adma.200903233 ↗
17. 10.1039/c9dt01989h10.1039/c9dt01989h ↗
18. 10.1002/chem.20110367010.1002/chem.201103670 ↗
19. 10.1021/ja042710110.1021/ja0427101 ↗
20. 10.1021/ic800988b10.1021/ic800988b ↗
21. 10.1002/chem.20110214710.1002/chem.201102147 ↗
22. 10.1002/chem.20120302910.1002/chem.201203029 ↗
23. 10.1039/c9ta12492f10.1039/c9ta12492f ↗
24. 10.1021/cs500296s10.1021/cs500296s ↗
25. 10.1021/acs.inorgchem.7b0068410.1021/acs.inorgchem.7b00684 ↗
26. 10.1021/ja201514e10.1021/ja201514e ↗
27. 10.1002/chem.20070048010.1002/chem.200700480 ↗
28. 10.1039/b812605b10.1039/b812605b ↗
29. 10.1002/anie.20130568410.1002/anie.201305684 ↗
30. 10.1039/c4cp02997f10.1039/c4cp02997f ↗
31. 10.1021/cm051312+10.1021/cm051312+ ↗
32. 10.1039/c7tc02496g10.1039/c7tc02496g ↗
33. 10.1166/jnn.2012.458310.1166/jnn.2012.4583 ↗
34. 10.1002/chem.20130014610.1002/chem.201300146 ↗
35. 10.1021/acscatal.8b0222610.1021/acscatal.8b02226 ↗
36. 10.1016/j.apcatb.2019.04.03910.1016/j.apcatb.2019.04.039 ↗
37. 10.1021/acsaem.9b0226910.1021/acsaem.9b02269 ↗
38. 10.1021/ic00111a04310.1021/ic00111a043 ↗
39. 10.1093/nsr/nwaa22410.1093/nsr/nwaa224 ↗