具有高催化活性的CoNiP纳米材料用于电解水析氧
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摘要
报道了一种具有纳米尺寸的磷化钴镍(Co NiP)纳米材料,在碱性溶液电解水过程中显示出高催化析氧活性。实验结果表明,热分解法合成的CoNiP纳米材料的尺寸大约在20-25 nm(Fig.1a),高度分散且粒径均一。将该纳米材料与亲水多壁碳纳米管混合后,负载于玻碳电极上进行析氧催化活性评价。其电化学线性伏安结扫描果表明,当电流密度达到10 mA/cm~2时,其电位为1.69 V,塔菲斜率为75 mV/dec。稳定性研究表明,循环伏安扫描500圈后,该纳米材料表现出了极高的电化学稳定性。
We reported a CoN iP nanomaterials which shown very efficient water oxidation ability in alkaline solution. The experimental results shown that the thermal decomposition method synthesized Co NiP nanoparticle size between 20 and 25 nm with high dispersion ability. After mixing CoN iP with carbon nanotubes and modified them on the GCE, the catalytic ability can be evaluated. The LSV curves shown that the potential was 1.69 V at a current density of 10 mA /cm~2, and the Tafel slope of 75 mV /dec. After 500 cycle CV scan, CoN iP materials still shown very high stability.
引文
[1]Li,D;Baydoun,H;Verani,C;Brock,S.J.Am.Chem.Soc.2016,138:4006.
    [2]Han,A;Chen,H;Sun,Z;Xu J;Du,P.Chem.Commun.2015,51:11626.

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