| Home > Articles > Published articles > MOF-derived ultrathin cobalt molybdenum phosphide nanosheets for efficient electrochemical overall water splitting |
| Date: | 2022 |
| Abstract: | The development of high-performance and cost-effective earth-abundant transition metal-based electrocatalysts is of major interest for several key energy technologies, including water splitting. Herein, we report the synthesis of ultrathin CoMoP nanosheets through a simple ion etching and phosphorization method. The obtained catalyst exhibits outstanding electrocatalytic activity and stability towards oxygen and hydrogen evolution reactions (OER and HER), with overpotentials down to 273 and 89 mV at 10 mA cm -2, respectively. The produced CoMoP nanosheets are also characterized by very small Tafel slopes, 54. 9 and 69. 7 mV dec -1 for OER and HER, respectively. When used as both cathode and anode electrocatalyst in the overall water splitting reaction, CoMoP-based cells require just 1. 56 V to reach 10 mA cm -2 in alkaline media. This outstanding performance is attributed to the proper composition, weak crystallinity and two-dimensional nanosheet structure of the electrocatalyst. |
| Grants: | Agencia Estatal de Investigación PID2020-116093RB-C43 Agencia Estatal de Investigación PID2019-105490RB-C32 Ministerio de Economía y Competitividad SEV-2017-0706 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-327 |
| Note: | Altres ajuts: IREC is funded by the CERCA Programme/Generalitat de Catalunya. ICN2 is funded by the CERCA Programme/Generalitat de Catalunya. |
| Rights: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. |
| Language: | Anglès |
| Document: | Article ; recerca ; Versió publicada |
| Subject: | MOF ; Phosphide ; Nanosheet ; Water splitting |
| Published in: | Nanomaterials, Vol. 12, issue 7 (April 2022) , art. 1098, ISSN 2079-4991 |
12 p, 2.4 MB |