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Molecular Cobalt Pentapyridine Catalysts for Generating Hydrogen from Water
Open accessAbstract
A set of robust molecular cobalt catalysts for the generation of hydrogen from water is reported. The cobalt complex supported by the parent pentadentate polypyridyl ligand PY5Me(2) features high stability and activity and 100% Faradaic efficiency for the electrocatalytic production of hydrogen from neutral water, with a turnover number reaching 5.5 × 10(4) mol of H(2) per mole of catalyst with no loss in activity over 60 h. Control experiments establish that simple Co(II) salts, the free PY5Me(2) ligand, and an isostructural PY5Me(2) complex containing redox-inactive Zn(II) are all ineffective for this reaction. Further experiments demonstrate that the overpotential for H(2) evolution can be tuned by systematic substitutions on the ancillary PY5Me(2) scaffold, presaging opportunities to further optimize this first-generation platform by molecular design.
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Cited by
Recent Progress in Cobalt‐Based Heterogeneous Catalysts for Electrochemical Water Splitting
Wang, J., Cui, W., Liu, Q., Xing, Z., Asiri, A. M., & Sun, X. (2016) · Advanced Materials · doi:10.1002/adma.201502696 · Cited by 2,446
Tian, J., Liu, Q., Asiri, A. M., & Sun, X. (2014) · Journal of the American Chemical Society · doi:10.1021/ja503372r · Cited by 2,373
Non‐Noble Metal‐based Carbon Composites in Hydrogen Evolution Reaction: Fundamentals to Applications
Wang, J., Xu, F., Jin, H., Chen, Y., & Wang, Y. (2017) · Advanced Materials · doi:10.1002/adma.201605838 · Cited by 1,769
Atomic cobalt on nitrogen-doped graphene for hydrogen generation
Fei, H., Dong, J., Arellano-Jiménez, M. J., Ye, G., Dong Kim, N., Samuel, E. L. G., Peng, Z., Zhu, Z., Qin, F., Bao, J., et al. (2015) · Nature Communications · doi:10.1038/ncomms9668 · Cited by 1,621
A Molecular MoS 2 Edge Site Mimic for Catalytic Hydrogen Generation
Karunadasa, H. I., Montalvo, E., Sun, Y., Majda, M., Long, J. R., & Chang, C. J. (2012) · Science · doi:10.1126/science.1215868 · Cited by 1,215
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Metadata
- Authors
- Sun, Y., Bigi, J. P., Piro, N. A., Tang, M. L., Long, J. R., & Chang, C. J.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2011-05-25
- Volume
- 133
- Issue
- 24
- Pages
- 9212-9215
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2070651373
- Cited by
- 442
- References
- 0
- FWCI
- 14.32
- Type
- journal article
- Language
- en
- Open access
- green
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- Sun, Y., Bigi, J. P., Piro, N. A., Tang, M. L., Long, J. R., & Chang, C. J. (2011). Molecular Cobalt Pentapyridine Catalysts for Generating Hydrogen from Water. Journal of the American Chemical Society. https://doi.org/10.1021/ja202743r
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