过电位
析氧
催化作用
电催化剂
化学工程
量子点
纳米技术
分解水
离子
材料科学
碳纤维
化学
电化学
电极
物理化学
复合数
复合材料
光催化
工程类
生物化学
有机化学
作者
Yu Bai,Longcheng Zhang,Qiulin Li,Yuanke Wu,Youpeng Wang,Maowen Xu,Shu‐Juan Bao
标识
DOI:10.1021/acssuschemeng.0c07700
摘要
Designing low-cost and high-activity electrocatalysts is significant to enhance the slow kinetic process of oxygen evolution reaction (OER). Inspired by the Lego game, hierarchical CdP2–CDs–CoP nanoarrays were fabricated by combining negatively charged carbon quantum dots (CDs) with positively charged Co and Cd ions. Because of the low evaporation temperature of Cd and relatively high solubility product (Ksp) of Cd(OH)2, trace CdP2 is trapped on the surface of CdP2–CDs–CoP nanoarrays. When coupled with CDs, CdP2 enriches the defects and active sites of catalysts. The CdP2–CDs–CoP nanoarray, as a robust OER electrocatalyst, delivers an overpotential of 285 mV to drive a current density of 10 mA cm–2, demonstrating its superiority over commercial RuO2.
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