Pd@C3N4 nanocatalyst for highly efficient hydrogen storage system based on potassium bicarbonate/formate

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• 作者：Xianzhao Shao ; Jinming Xu ; Yanqiang Huang ; Xiong Su ; Hongmin Duan ; Xiaodong Wang and Tao Zhang
• 刊名：AIChE Journal
• 出版年：2016
• 出版时间：July 2016
• 年：2016
• 卷：62
• 期：7
• 页码：2410-2418
• 全文大小：710K
• ISSN：1547-5905

文摘

Formate/bicarbonate system has several desirable properties such as noncorrosive and nonirritating nature, as well as facile handling, which make it an attractive candidate for a safe, reversible hydrogen storage material. Herein, Pd nanoparticles supported on mesoporous graphitic carbon nitride (mpg-C₃N₄) for formate-based reversible hydrogen storage is reported. The as-developed Pd/mpg-C₃N₄ material was shown to be a superior catalyst for the hydrogenation of high concentrations of bicarbonate to formate under mild conditions. The effects of reaction temperature, H₂ pressure, and bicarbonate concentration on the hydrogenation of bicarbonate to formate were investigated. The catalytic performance remained steady with high activity up to six hydrogenation cycles. The interaction between mpg-C₃N₄ and Pd nanoparticles and the concerted effects of the nitrogen species located at mpg-C₃N₄ and bicarbonate played a synergetic role in the enhancement of the performance of the catalyst for hydrogenation.