The DOI matches its Crossref record; 66 of the 66 references it cites were found in a registry or an index.
Enhanced Electrocatalysis for Energy‐Efficient Hydrogen Production over CoP Catalyst with Nonelectroactive Zn as a Promoter
Abstract
As a non‐toxic species, Zn fulfills a multitude of biological roles, but its promoting effect on electrocatalysis has been rarely explored. Herein, the theoretic predications and experimental investigations that nonelectroactive Zn behaves as an effective promoter for CoP‐catalyzed hydrogen evolution reaction (HER) in both acidic and alkaline media is reported. Density function theory calculations reveal that Zn doing leads to more thermal‐neutral hydrogen adsorption free energy and thus enhanced HER activity for CoP catalyst. Electrochemical tests show that a Zn 0.08 Co 0.92 P nanowall array on titanium mesh (Zn 0.08 Co 0.92 P/TM) needs overpotentials of only 39 and 67 mV to drive a geometrical catalytic current of 10 mA cm‐2 in 0.5 m H 2 SO 4 and 1.0 m KOH, respectively. This Zn 0.08 Co 0.92 P/TM is also superior in activity over CoP/TM for urea oxidation reaction (UOR), driving 115 mA cm‐2 at 0.6 V in 1.0 m KOH with 0.5 m urea. The high HER and UOR activity of this bifunctional electrode enables a Zn 0.08 Co 0.92 P/TM‐based two‐electrode electrolyzer for energy‐saving hydrogen production, offering 10 mA cm‐2 at a low voltage of 1.38 V with strong long‐term electrochemical stability.
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Metadata
- Authors
- Liu, T., Liu, D., Qu, F., Wang, D., Zhang, L., Ge, R., Hao, S., Ma, Y., Du, G., Asiri, A. M., Chen, L., & Sun, X.
- Venue
- Advanced Energy Materials
- Publisher
- Wiley
- Published
- 2017-04-27
- Volume
- 7
- Issue
- 15
- ISSN
- 1614-6832 (ISSN-L)
- 1614-6840
- OpenAlex
- W2608006752
- Cited by
- 601
- References
- 66
- FWCI
- 20.99
- Type
- journal article
- Language
- en
- Open access
- closed
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- Liu, T., Liu, D., Qu, F., Wang, D., Zhang, L., Ge, R., Hao, S., Ma, Y., Du, G., Asiri, A. M., Chen, L., & Sun, X. (2017). Enhanced Electrocatalysis for Energy‐Efficient Hydrogen Production over CoP Catalyst with Nonelectroactive Zn as a Promoter. Advanced Energy Materials. https://doi.org/10.1002/aenm.201700020
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