High active and cost‐effective electrocatalysts for the oxygen reduction reaction(ORR)are essential components of renewable energy technologies,such as fuel cells and metal/air batteries.Herein,we propose that ORR ac...High active and cost‐effective electrocatalysts for the oxygen reduction reaction(ORR)are essential components of renewable energy technologies,such as fuel cells and metal/air batteries.Herein,we propose that ORR active Cu/graphitic carbon nitride(Cu/g‐CN)electrocatalyst can be prepared via a facile hydrothermal reaction in the present of the ionic liquid(IL)bis(1‐hexadecyl‐3‐methylimidazolium)tetrachlorocuprate[(C16mim)2CuCl4]and protonated g‐CN.The as‐prepared Cu/g‐CN showed an impressive ORR catalytic activity that a99mV positive shift of the onset potential and2times kinetic current density can be clearly observed,comparing with the pure g‐CN.In addition,the Cu/g‐CN revealed better stability and methanol tolerance than commercial Pt/C(HiSPECTM3000,20%).Therefore,the proposed Cu/g‐CN,as the inexpensive and efficient ORR electrocatalyst,would be a potential candidate for application in fuel cells.展开更多
基金supported by the Australian Research Council Discovery Project(DP150101717)~~
文摘High active and cost‐effective electrocatalysts for the oxygen reduction reaction(ORR)are essential components of renewable energy technologies,such as fuel cells and metal/air batteries.Herein,we propose that ORR active Cu/graphitic carbon nitride(Cu/g‐CN)electrocatalyst can be prepared via a facile hydrothermal reaction in the present of the ionic liquid(IL)bis(1‐hexadecyl‐3‐methylimidazolium)tetrachlorocuprate[(C16mim)2CuCl4]and protonated g‐CN.The as‐prepared Cu/g‐CN showed an impressive ORR catalytic activity that a99mV positive shift of the onset potential and2times kinetic current density can be clearly observed,comparing with the pure g‐CN.In addition,the Cu/g‐CN revealed better stability and methanol tolerance than commercial Pt/C(HiSPECTM3000,20%).Therefore,the proposed Cu/g‐CN,as the inexpensive and efficient ORR electrocatalyst,would be a potential candidate for application in fuel cells.
