Journal
INORGANIC CHEMISTRY
Volume 61, Issue 32, Pages 12809-12821Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.2c01909
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Funding
- Chinese National Natural Science Foundation [22062001]
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This study developed a new strategy for catalyst synthesis by forming a stable bonding state on the catalyst surface through a one-step oxidation-phosphorus doping strategy. This bonding state effectively inhibits the recombination of photogenerated carriers and enhances the migration rate of photogenerated electrons, accelerating the process of photocatalytic hydrogen evolution. The research provides new insights and effective strategies for catalyst surface design and the development of photocatalytic hydrogen evolution.
The development of clean energy is one of the effective strategies to solve carbon peak and carbon neutrality. The severe recombination of photogenerated carriers is one of the fundamental reasons that hinder the development of photocatalysis. In this work, NiCo-MOF/ZIF was obtained by the ZIF on MOF strategy for the first time, and a stable bonding state of surface P(6-)-Co/Ni(6+)-O(6-) was formed on the surface of the catalyst by a one-step oxidation-phosphorus doping strategy. The X-ray photoelectron spectroscopy technique proves that phospho-rus doping forms a unique bonding state on the surface of CoO- NiO. The novel surface bonding state can effectively inhibit the recombination of photogenerated carriers and can increase the migration rate of photogenerated electrons, which accelerates the process of photocatalytic hydrogen evolution. Photocatalytic hydrogen evolution kinetics verifies that the formation of P(6-)-Co/Ni(6+)-O(6-) bonding states can accelerate the process of photocatalytic hydrogen evolution, and the durability of the catalyst is verified by cycling experiments. This work provides a new strategy for catalyst synthesis, new horizons, and effective strategies for the surface design of catalysts and the development of photocatalytic hydrogen evolution.
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