Recently, School of Chemical Engineering, Qingdao University of Science and Technology The team of Zhang Yongchao and Zhu Xiaodong has made a series of new progress in the field of electrocatalysis water splitting. The relevant results are titled "Co3-xO4/NiO with abundant Ni3+ active sites for boosting oxygen evolution reaction" It was published in the internationally renowned journal in the field of chemical engineering "Chemical Engineering Journal" (impact factor 13.273, Chinese Academy of Sciences 1 District); it was published in the internationally renowned journal in the field of catalysis under the title "NiCo-based electrocatalysts for the alkaline oxygen evolution reaction: A review" "ACS Catalysis" (impact factor 13.084, Area 1, Chinese Academy of Sciences).
Electrocatalytic water splitting to produce hydrogen is a sustainable way to produce hydrogen. However, its slow oxygen evolution reaction (OER) kinetics and low energy conversion efficiency at the anode are the main bottlenecks restricting large-scale hydrogen production. Therefore, designing and synthesizing OER catalysts with high activity, stability, and low cost is the key to promoting electrocatalytic water splitting for hydrogen production. In response to the above problems, the team used Co3-xO4 rich in metal defects as an electron acceptor carrier to synthesize a Co3-xO4/NiO catalyst with a rich surface Ni3+, which can effectively regulate oxygen-containing intermediates (OH*) with appropriate binding energy , O* and OOH*), reducing the Gibbs free energy change of the rate-controlling step and accelerating the OER reaction kinetics, thus showing excellent activity and stability.
In recent years, the teams of Zhang Yongchao and Zhu Xiaodong from the School of Chemical Engineering have made a series of progress in the field of electrocatalytic water splitting. The research results have been published in "Advanced Science", "Applied Catalysis B: Environmental", "Journal of Materials Chemistry A", "Chemical Communications", etc. Published in international journals, it has received widespread attention and positive comments from international colleagues, and was invited to write a review, which was published in "ACS Catalysis". It has been highlighted by public accounts such as Catalytic Meter, Yanzhi Chengli, and Nanoman. So far, it has been Cited 31 times.
[Zhang Y.-C, Han C, Gao J, Pan L,Wu J, Zhu X.-D, Zou J.-J. NiCo-based electrocatalysts for the alkaline oxygen evolution reaction: A review[J]. ACS Catalysis, 2021, 11(20): 12485-12509. ]
The above work has been supported by National Natural Science Foundation of China (21878063, 22005168), Shandong Province Taishan Scholar Talent Project (tsqn201909119), Shandong Province Natural Science Foundation of China Key Project (ZR2020KB011) support.
Source: Qingdao University of Science and Technology
