The team of Yu Shuhong and Gao Minrui of the University of Science and Technology of China developed a new high-performance, low-cost new ternary nanosheet electrocatalyst. It exhibits excellent industrial-grade hydrogen production potential of electrolyzed water. "German Applied Chemistry" recently published the results.
In recent years, the international academic community has made remarkable progress in the design and preparation of fully hydrolyzed electrode catalysts. However, it is still a challenge to find non-noble metal electrocatalysts that can simultaneously exhibit high activity and high stability in neutral aqueous electrolytes. The researchers designed and successfully prepared a nickel-doped cobalt phosphide ternary nanosheet electrocatalyst using two steps of electrochemical deposition and solid phase phosphating. It exhibits excellent water reduction and oxidation electrocatalytic activity and stability under neutral conditions. The experimenters used this ternary material as the cathode and anode of a neutral water total decomposition electrolytic cell, and found that its performance was superior to that of electrolytic cells prepared with commercial precious metal materials as electrodes.
According to reports, this work provides new ideas for the development of inexpensive ternary transition metal phosphides as electrodes for the production of hydrogen in neutral water electrolysis, and shows potential commercial application prospects. (Xu Haitao)
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