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Reaction\u201d<\/b><\/strong>\u53d1\u8868\u5728\u4e86Angewandte Chemie<\/b><\/strong>\u4e0a\u3002<\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/b><\/strong><\/p>\n \u56fe1 HCNFs\u7684<\/b><\/strong>\u5f62\u8c8c\u8868\u5f81<\/b><\/strong> a,b\uff09HCNFs\u7684SEM\u56fe\u50cf\u3002<\/p>\n c,d\uff09HCNFs\u7684c\uff09TEM\u548cd\uff09HRTEM\u56fe\u50cf\u3002<\/p>\n d\uff09\u4e2d\u7684\u63d2\u5165\u663e\u793a\u4e86\u76f8\u5e94\u7684SAED\u56fe\u50cf\u3002<\/p>\n e\uff09HCNFs\u548cf\uff09SCNFs\u7684\u63a5\u89e6\u89d2\u3002<\/p>\n \u56fe2 HCNFs\u7684<\/b><\/strong>\u7535\u5316\u5b66\u6027\u80fd<\/b><\/strong> a\uff09HCNFs\u548cSCNFs\u7684ORR\u548cH2<\/sub>O2<\/sub>\u4ea7\u751f\u7684RRDE\u4f0f\u5b89\u56fe\u3002<\/p>\n b\uff09\u8ba1\u7b97\u7684\u9009\u62e9\u6027\u3002<\/p>\n c,d\uff09\u5728c\uff090.65 V\u548cd\uff090.75 V\u5904\u7684\u8d28\u91cf\u6d3b\u6027\u6bd4\u8f83\u3002<\/p>\n e\uff09HCNFs\u7684\u7a33\u5b9a\u6027\u8bc4\u4f30\uff08\u5706\u76d8\u4e3a0.50 V\uff0c\u73af\u4e3a1.20 V\uff09\u3002<\/p>\n f\uff09HCNFs\u7684\u4e09\u5408\u4e00\u6548\u5e94\u4fc3\u8fdb\u4e86O2<\/sub>\u5230H2<\/sub>O2<\/sub>\u7684\u8f6c\u5316\u3002<\/p>\n \u56fe3 HCNFs\u548cSCNFs\u7684\u539f\u4f4d\u62c9\u66fc\u5149\u8c31<\/b><\/strong> a\uff09HCNFs\u548cb\uff09SCNFs\u5728\u4e0d\u540c\u7535\u4f4d\uff08OCV\uff1a\u5f00\u8def\u7535\u538b\uff09\u4e0b\u8fdb\u884cVoigt\u53cd\u5377\u79ef\u7684\u539f\u4f4d\u62c9\u66fc\u5149\u8c31\u3002<\/p>\n \u56fe4 <\/b><\/strong>DFT\u8ba1\u7b97<\/b><\/strong> a\uff09AGNR\u548cZGNR\u7684\u539f\u5b50\u7ed3\u6784\uff0c\u5176SW\u7f3a\u9677\u76f8\u5bf9\u4e8e\u8fb9\u7f18\u7684\u4e0d\u540c\u4f4d\u7f6e\u3002\u6df1\u84dd\u8272\u548c\u7c89\u8272\u7684\u7403\u5206\u522b\u8868\u793aC\u539f\u5b50\u548cH\u539f\u5b50\u3002<\/p>\n b\uff09\u5177\u6709\u5404\u79cdSW\u7f3a\u9677\u7684AGNR\u548cZGNR\u76842e–<\/sup>\u00a0ORR\u7406\u8bba\u6d3b\u52a8\u706b\u5c71\u56fe\uff08\u5b9e\u7ebf\uff09\u3002<\/p>\n \u3010\u5c0f\u7ed3\u3011<\/b><\/strong><\/p>\n \u7efc\u4e0a\u6240\u8ff0\uff0c\u5177\u6709\u542b\u6c27\u5b98\u80fd\u56e2\u7684HCNFs\u662f\u4e00\u79cd\u9ad8\u6d3b\u6027\u7684\u4e09\u5408\u4e00\u50ac\u5316\u5242\uff0c\u7528\u4e8e2e–<\/sup>\u7535\u5b50\u6c27\u8fd8\u539f\u7535\u50ac\u5316\u3002\u5b83\u4eec\u7684\u8d85\u4eb2\u6c34\u6027\u7eb3\u7c73\u7a7a\u8154\u6709\u52a9\u4e8e\u5728\u7f3a\u9677\u6d3b\u6027\u4f4d\u70b9\u5468\u56f4\u6355\u96c6O2<\/sub>\u548c\u6c34\u7535\u89e3\u8d28\uff0c\u63d0\u4f9b\u4e30\u5bcc\u7684\u4e09\u76f8\u754c\u9762\u3002\u57280.1 M KOH\u4e2d\uff0c\u8fd9\u6837\u7684HCNFs\u8868\u73b0\u51fa97.3%\u7684\u9ad8H2<\/sub>O2<\/sub>\u9009\u62e9\u6027\uff0c\u57280.65 V vs. RHE\u76f8\u6bd4\uff0cHCNFs\u7684\u8d28\u91cf\u6d3b\u6027\u8fbe\u5230220 A g-1<\/sup>\u3002\u539f\u4f4d\u62c9\u66fc\u6570\u636e\u8bc1\u5b9e\u4e86D1<\/sub>\u7f3a\u9677\u7684\u91cd\u8981\u4f5c\u7528\uff0c\u7406\u8bba\u8ba1\u7b97\u63ed\u793a\u4e86\u9760\u8fd1\u8fb9\u7f18\u7684\u62d3\u6251\u7f3a\u9677\u662f\u4e3b\u8981\u7684\u6d3b\u6027\u4f4d\u70b9\u3002\u8fd9\u9879\u5de5\u4f5c\u4e0d\u4ec5\u4e3a\u56e2\u961f\u63d0\u4f9b\u4e86\u4e00\u79cd\u6709\u5438\u5f15\u529b\u76842e–<\/sup>\u00a0ORR\u50ac\u5316\u6750\u6599\uff0c\u800c\u4e14\u5c06\u4e3a\u8bbe\u8ba1\u5177\u6709\u8d85\u4eb2\u6c34\u6027\u548c\u589e\u5f3a2e–<\/sup>\u00a0ORR\u6d3b\u6027\u7684O2<\/sub>\u6355\u96c6\u7684\u4e09\u76f8\u754c\u9762\u5f00\u8f9f\u4e86\u65b0\u9014\u5f84\u3002<\/p>\n \u00a0<\/b><\/strong>\u6587\u732e\u94fe\u63a5<\/b><\/strong>\uff1aHoneycomb Carbon Nanofibers: A Superhydrophilic O<\/u>2<\/sub><\/u>\u2010Entrapping Electrocatalyst Enables Ultrahigh Mass Activity for the Two\u2010Electron Oxygen Reduction Reaction<\/u><\/a>\uff08Angewandte Chemie\uff0c2021\uff0cDOI:10.1002\/anie.202101880\uff09<\/p>\n \u672c\u6587\u7531\u6728\u6587\u97ec<\/b><\/strong>\u7ffb\u8bd1\uff0c\u6750\u6599\u725b\u6574\u7406\u7f16\u8f91\u3002<\/p>\n<\/p>\n
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