Electroless plating of Ni–B film as a binder-free highly efficient electrocatalyst for hydrazine oxidation

Autor: Xiao-Ping Wen, Ping Wang, Lin-Song Wu, Hong-Bin Dai
Rok vydání: 2017
Předmět:
Zdroj: Applied Surface Science. 409:132-139
ISSN: 0169-4332
DOI: 10.1016/j.apsusc.2017.03.047
Popis: Hydrazine is a promising energy carrier for fuel cells owing to its combined advantages of high theoretical cell voltage, high-power density, and no greenhouse gas emission. By using an electroless plating process, we have prepared a robust Ni–B film grown on Ni foam that is highly effective for hydrazine electrooxidation in alkaline media. The effects of reaction temperature, concentrations of hydrous hydrazine and sodium hydroxide in the fuel solution on performance of hydrazine electrooxidation reaction are investigated. The mechanistic reason for the property advantage of as-prepared Ni–B/Ni foam catalyst over the relevant catalysts is discussed based on careful kinetics studies and characterization. The facile synthesis of Ni-based catalyst with high activity and good stability is of clear significance for the development of hydrous hydrazine as a viable energy carrier.
Databáze: OpenAIRE