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首页> 外文期刊>Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications >CoOx/CoNy nanoparticles encapsulated carbon-nitride nanosheets as an efficiently trifunctional electrocatalyst for overall water splitting and Zn-air battery
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CoOx/CoNy nanoparticles encapsulated carbon-nitride nanosheets as an efficiently trifunctional electrocatalyst for overall water splitting and Zn-air battery

机译：CoOX / Cony纳米粒子将碳 - 氮化物纳米片包封，作为用于整体水分裂和Zn空气电池的有效三季末催化剂

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摘要

A novel and efficient trifunctional electrocatalyst composed of cobalt oxide (CoOx) and cobalt nitride (CoNy) embedded in carbon-nitride nanosheets (CNz, represented by CoOx/CoNy@CNz) has been developed by calcining the composite of cobalt phthalocyanine (CoPc) and melamine-cyanuric acid complex at high temperatures. Multiple active sites of Co, CoOx, CoNy, and CNz containing in hybrids resulted in superior catalytic activities toward hydrogen evolution reaction, oxygen evolution reaction, and oxygen reduction reaction in an alkaline medium. Among different catalysts, the CoOx/CoNy@CNz,700 catalyst not only displayed outstanding electrocatalytic ability for overall water splitting but also showed a high power density as high as 204.8 mW cm(-2), high gravimetric energy density of 1008.6 W h kg(-1), low charge-discharge polarization, and excellent reversibility after 86 h at 10 mA cm(-2) in a Zn-battery system. This work presents a feasible strategy for developing multifunctional metal-carbon-nitride electrocatalysts for clean energy and energy transfer.
机译：通过煅烧钴酞菁（COPC）的复合物，通过嵌入碳-氮化物纳米片（CNZ，由COOO / CONY @ CNZ表示的CNZ表示的氮化物氮化物（CNZ）组成的新颖和有效的三季度电催化剂。三聚氰胺 - 氰尿酸复合物在高温下。含有杂交种的CO，CoOX，Cony和CNZ的多个活性位点导致碱性介质中的氢进化反应，氧逸出反应和氧还原反应的优异催化活性。在不同的催化剂中，COOO / CONY @ CNZ，700催化剂不仅显示出整个水分裂的出色电催化能力，而且显示出高达204.8 MW CM（-2）的高功率密度，重量高的重量能量密度为1008.6 W H kg （-1），低电荷放电偏振，在Zn电池系统中以10mA cm（-2）的86小时后的优异可逆性。该工作提出了一种用于开发多官能金属 - 碳 - 氮化物电催化剂以进行清洁能量和能量转移的可行策略。

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