析氧
材料科学
石墨氮化碳
碳化物
氮化物
碳化钛
电化学
化学工程
氧气
碳纤维
氮化碳
电催化剂
纳米技术
氧化钛
催化作用
光催化
冶金
复合材料
化学
电极
有机化学
物理化学
工程类
复合数
图层(电子)
作者
Tianyi Ma,Jianliang Cao,Mietek Jaroniec,Shi‐Zhang Qiao
标识
DOI:10.1002/anie.201509758
摘要
Abstract Free‐standing flexible films, constructed from two‐dimensional graphitic carbon nitride and titanium carbide (with MXene phase) nanosheets, display outstanding activity and stability in catalyzing the oxygen‐evolution reaction in alkaline aqueous system, which originates from the Ti–N x motifs acting as electroactive sites, and the hierarchically porous structure with highly hydrophilic surface. With this excellent electrocatalytic ability, comparable to that of the state‐of‐the‐art precious‐/transition‐metal catalysts and superior to that of most free‐standing films reported to date, they are directly used as efficient cathodes in rechargeable zinc–air batteries. Our findings reveal that the rational interaction between different two‐dimensional materials can remarkably promote the oxygen electrochemistry, thus boosting the entire clean energy system.
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