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Metal-Organic Framework Derived Ni2P/FeP@NPC Heterojunction as Stability Bifunctional Electrocatalysts for Large Current Density Water Splitting.
| Content Provider | Europe PMC |
|---|---|
| Author | Jiang, Huimin Zhang, Shuo Fu, Qiuju Yan, Liting Zhang, Jun Zhao, Xuebo |
| Editor | Curulli, Antonella |
| Copyright Year | 2023 |
| Abstract | The construction of heterojunction has been widely accepted as a prospective strategy for the exploration of non-precious metal-based catalysts that possess high-performance to achieve electrochemical water splitting. Herein, we design and prepare a metal-organic framework derived N, P-doped-carbon-encapsulated Ni2P/FeP nanorod with heterojunction (Ni2P/FeP@NPC) for accelerating the water splitting and working stably at industrially relevant high current densities. Electrochemical results confirmed that Ni2P/FeP@NPC could both accelerate the hydrogen and oxygen evolution reactions. It could substantially expedite the overall water splitting (1.94 V for 100 mA cm-2) which is close to the performance of RuO2 and the Pt/C couple (1.92 V for 100 mA cm-2). In particular, the durability test exhibited that Ni2P/FeP@NPC delivers 500 mA cm-2 without decay after 200 h, demonstrating the great potential for large-scale applications. Furthermore, the density functional theory simulations demonstrated that the heterojunction interface could give rise to the redistribution of electrons, which could not only optimize the adsorption energy of H-containing intermediates to achieve the optimal ΔGH* in a hydrogen evolution reaction, but also reduce the ΔG value in the rate-determining step of an oxygen evolution reaction, thus improving the HER/OER performance. |
| Journal | Molecules |
| Volume Number | 28 |
| DOI | 10.3390/molecules28052280 |
| PubMed Central reference number | PMC10005255 |
| Issue Number | 5 |
| PubMed reference number | 36903526 |
| e-ISSN | 14203049 |
| Language | English |
| Publisher | Molecular Diversity Preservation International (MDPI) |
| Publisher Date | 2023-02-28 |
| Access Restriction | Open |
| Subject Keyword | metal-organic frameworks heterojunction electrocatalysis large current density water splitting |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physical and Theoretical Chemistry Medicine Chemistry Drug Discovery Pharmaceutical Science Analytical Chemistry Molecular Medicine Organic Chemistry |
