Exfoliated nickel hydroxide nanosheets for urea electrolysis
Exfoliated nickel hydroxide nanosheets for urea electrolysis
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DOI：
10.1016/j.elecom.2011.07.016
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发表时间：
2011-10
影响因子：
5.4
通讯作者：
Dan Wang;Wei Yan;G. Botte
中科院分区：
文献类型：
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作者：
Dan Wang;Wei Yan;G. Botte
通过剥离表面活性剂插层层状氢氧化镍制备了二维氢氧化镍纳米片，并将其作为尿素电氧化的电催化剂。尿素在Ni（OH）2纳米片修饰电极上的电氧化显示出过电位降低了100 mV，电流密度增加了约154 mAcm −2mg−1，增加了约1倍。170相比，散装Ni（OH）2粉末修饰电极。Ni（OH）2纳米片具有促进尿素电解反应的能力，在富尿素废水治理、制氢、电化学传感器和燃料电池等方面具有广阔的应用前景。
Two-dimensional nickel hydroxide nanosheets were synthesized by exfoliating surfactant intercalated layered nickel hydroxides and developed as electrocatalysts for urea electro-oxidation. The electro-oxidation of urea on Ni(OH)2nanosheet modified electrodes shows a decrease of 100mV in overpotential and an enhancement in current density, which reaches ca.154mAcm−2mg−1, by a factor of ca. 170 compared to bulk Ni(OH)2powder modified electrodes. The Ni(OH)2nanosheets have promising applications in urea-rich wastewater remediation, hydrogen production, electrochemical sensors, and fuel cells due to their ability to promote the urea electrolysis reaction.