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Simple 2 D/0 D CoP Integration in a Metal-Organic Framework-Derived Bifunctional Electrocatalyst for Efficient Overall Water Splitting.
- Source :
-
ChemSusChem [ChemSusChem] 2020 Jul 07; Vol. 13 (13), pp. 3495-3503. Date of Electronic Publication: 2020 May 12. - Publication Year :
- 2020
-
Abstract
- Non-noble metal-based bifunctional electrocatalysts are highly desired for water electrolysis. However, constructing a water electrolyzer using a sole catalyst without compromising either its oxygen evolution reaction (OER) or hydrogen evolution reaction (HER) performance is still challenging. In this study, a simple strategy is developed to integrate 2 D and 0 D CoP in the same metal-organic framework precursor-derived hollow N-doped carbon nanotube-assembled polyhedron (HNCNP). The unique hierarchical structure endows the resulting nanocomposite with both the advantages of more exposed active sites for 2 D and large surface-to-volume ratio for 0 D materials, whereas the hollow interior could benefit the charge and mass transfer properties. Thus, CoP/HNCNP@2 D CoP exhibits outstanding OER and HER activity and a low cell voltage when employed as both the anode and cathode in a two-electrode water electrolyzer. The approach of integrating the same metal phosphide phase with diverse dimensions may inspire new ways to design hierarchical nanostructures for advanced energy conversion applications.<br /> (© 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.)
Details
- Language :
- English
- ISSN :
- 1864-564X
- Volume :
- 13
- Issue :
- 13
- Database :
- MEDLINE
- Journal :
- ChemSusChem
- Publication Type :
- Academic Journal
- Accession number :
- 32222061
- Full Text :
- https://doi.org/10.1002/cssc.202000566