A porous Ni3N nanosheet array as a high-performance non-noble-metal catalyst for urea-assisted electrochemical hydrogen production

作者：Liu, Qin; Xie, Lisi; Qu, Fengli; Liu, Zhiang; Du, Gu; Asiri, Abdullah M.; Sun, Xuping^*

来源：Inorganic Chemistry Frontiers, 2017, 4(7): 1120-1124.

DOI：10.1039/c7qi00185a

• EFFICIENT BIFUNCTIONAL ELECTROCATALYST
• NANOWIRE ARRAYS
• WATER
• NICKEL
• ELECTRODE
• ENERGY
• EVOLUTION
• OXIDATION
• FOAM

Developing highly efficient and non-noble-metal catalysts is of great importance for electrochemical energy storage and conversion. In this communication, we report the development of a porous Ni3N nanosheet array on carbon cloth (Ni3N NA/CC) as a high-performance and durable electrocatalyst for urea oxidation. To drive 10 mA cm(-2), this Ni3N NA/CC only demands a potential of 1.35 V in 1.0 M KOH with 0.33 M urea. The high catalytic activity of the hydrogen evolution reaction enables Ni3N NA/CC as a bifunctional catalyst electrode for electrochemical hydrogen production and the two-electrode electrolyzer is capable of offering 10 mA cm(-2) at a cell voltage of only 1.44 V, 120 mV less than that for the ureafree counterpart.

• 出版日期2017-7-1
• 单位西华师范大学; 成都地质矿产研究所; 曲阜师范大学