Enhanced electrooxidation of urea using NiMoO4•xH2O nanosheet arrays on Ni foam as anode
Enhanced electrooxidation of urea using NiMoO4•xH2O nanosheet arrays on Ni foam as anode
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DOI：
10.1016/j.electacta.2014.11.193
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发表时间：
2015-01-20
影响因子：
6.6
通讯作者：
Sun, Xuping
中科院分区：
文献类型：
--
作者：
Liang, Yanhui;Liu, Qian;Sun, Xuping
尿素电解法在制氢和处理含尿素废水方面显示出了巨大的潜力，开发高效的富稀土元素尿素氧化电催化剂具有重要意义。本文报道了用水热法在泡沫镍(NiMoO4Nas/Nf)上生长NiMoO4中心点XH(2)O纳米片阵列。将NiMoO4NAS/NF直接用作尿素在碱性溶液中电氧化的3D催化阳极时，表现出较高的催化活性和稳定性。在扫描速度为10 mV S(-1)时，0.5V时的比电流密度达到830 mA cm(-2)mg(-1)，比Ni(OH)(2)NaS/Nf提高了4.2倍。(C)2014爱思唯尔有限公司。保留所有权利。
Urea electrolysis has shown great potential in hydrogen production and remediation of urea-containing wastewater and it is highly important to develop efficient urea oxidation electrocatalysts made from earth-abundant elements. Here we report the growth of NiMoO4 center dot xH(2)O nanosheet arrays on Ni foam (NiMoO4 NAs/NF) through a hydrothermal process. When directly used as a 3D catalytic anode for electrooxidation of urea in alkaline solutions, the NiMoO4 NAs/NF exhibits high catalytic activity and stability. It achieves specific current density of 830 mA cm(-2) mg(-1) at 0.5 V at a scan rate of 10 mV s(-1), about 4.2 times enhancement compared to Ni(OH)(2) NAs/NF. (C) 2014 Elsevier Ltd. All rights reserved.