{"id":238160,"date":"2022-06-08T06:15:38","date_gmt":"2022-06-07T22:15:38","guid":{"rendered":"\/\/m.iemloyee.com\/?p=238160"},"modified":"2022-06-07T14:15:53","modified_gmt":"2022-06-07T06:15:53","slug":"%e9%82%b5%e6%95%8f%e5%8d%8e%e8%b0%b7%e7%8c%9b%e7%ad%89nature-catalysis%ef%bc%9a%e6%b4%bb%e6%80%a7%e6%8f%90%e9%ab%983-7%e5%80%8d%e3%80%81%e8%80%90%e4%b9%85%e6%80%a7%e5%be%aa%e7%8e%af100000%e6%ac%a1","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=238160","title":{"rendered":"\u90b5\u654f\u534e&\u8c37\u731b\u7b49Nature Catalysis\uff1a\u6d3b\u6027\u63d0\u9ad83.7\u500d\u3001\u8010\u4e45\u6027\u5faa\u73af100000\u6b21\uff01\u6df7\u5408\u7535\u50ac\u5316\u5242\u52a9\u529b\u8d28\u5b50\u4ea4\u6362\u819c\u71c3\u6599\u7535\u6c60"},"content":{"rendered":"

\u3010\u5bfc\u8bfb\u3011<\/strong><\/p>\n

\u8d28\u5b50\u4ea4\u6362\u819c\u71c3\u6599\u7535\u6c60\uff08proton exchange membrane fuel cells, PEMFCs\uff09\u4f5c\u4e3a\u4e00\u79cd\u5f88\u6709\u524d\u9014\u7684\u6e05\u6d01\u80fd\u6e90\u8f6c\u6362\u6280\u672f\u53d7\u5230\u4e86\u5e7f\u6cdb\u5173\u6ce8\u3002\u7136\u800c\uff0c\u7528\u4e8e\u6b63\u6781\u6c27\u8fd8\u539f\u53cd\u5e94\uff08ORR\uff09\u7684\u94c2\uff08Pt\uff09\u57fa\u7eb3\u7c73\u50ac\u5316\u5242\u7684\u9ad8\u6210\u672c\u548c\u4f4e\u8010\u4e45\u6027\u963b\u788d\u4e86\u8be5\u6280\u672f\u7684\u5e7f\u6cdb\u91c7\u7528\u3002\u968f\u7740Pt\u8d1f\u8f7d\u91cf\u7684\u964d\u4f4e\uff0c\u7531\u4e8e\u53ef\u63a5\u8fd1\u7684\u6d3b\u6027\u4f4d\u70b9\u6709\u9650\uff0c\u6c27\u8f6c\u79fb\u963b\u529b\u589e\u52a0\uff0c\u4ece\u800c\u5bfc\u81f4\u8010\u4e45\u6027\u964d\u4f4e\u3002\u56e0\u6b64\uff0c\u5f00\u53d1\u4f4ePt\u8d1f\u8f7d\u91cf\u6b63\u6781\u5bf9Pt\u7684\u5229\u7528\u548cPt\u57fa\u7535\u50ac\u5316\u5242\u7684\u56fa\u6709\u8010\u4e45\u6027\u63d0\u51fa\u4e86\u5de8\u5927\u6311\u6218\u3002\u867d\u7136\u5728\u5f00\u53d1\u5148\u8fdb\u7684Pt\u57fa\u50ac\u5316\u5242\u4ee5\u63d0\u9ad8Pt\u5229\u7528\u7387\u548c\u5bf9ORR\u7684\u8d28\u91cf\u6d3b\u6027\uff08mass activity, MA\uff09\u65b9\u9762\u53d6\u5f97\u4e0d\u9519\u8fdb\u5c55\uff0c\u4f46\u662f\u5728\u6db2\u4f53\u7535\u6c60\u4e2d\u6d4b\u91cf\u7684\u9ad8\u6d3b\u6027\u548c\/\u6216\u8010\u4e45\u6027\u5728\u71c3\u6599\u7535\u6c60\u4e2d\u5f88\u5c11\u5b9e\u73b0\u3002\u5176\u4e2d\uff0c\u7531\u6c2e\u914d\u4f4d\u78b3\u8868\u9762\uff08Me-N-C\uff09\u4e2d\u9ad8\u5ea6\u5206\u6563\u7684\u8fc7\u6e21\u91d1\u5c5e\u5355\u539f\u5b50\u7ec4\u6210\u7684\u78b3\u57fa\u975e\u8d35\u91d1\u5c5eORR\u7535\u50ac\u5316\u5242\u662f\u66ff\u4ee3Pt\u7684\u6709\u5e0c\u671b\u7684\u5019\u9009\u8005\u3002\u4f46\u662f\uff0cMe-N-C\u8f83\u5dee\u7684\u8010\u4e45\u6027\u9650\u5236\u4e86\u5176\u5b9e\u9645\u5e94\u7528\u3002\u7814\u7a76\u53d1\u73b0\uff0c\u5373\u4f7f\u5f15\u5165\u5c11\u91cf\u7684Pt\u6709\u52a9\u4e8e\u63d0\u9ad8\u6df7\u5408\u7535\u50ac\u5316\u5242\u7684\u9ad8\u6d3b\u6027\uff0c\u4f46\u5176\u5728\u6f5c\u5728\u5faa\u73af\uff080.6-0.95 V\u4e4b\u95f430000\u6b21\u5faa\u73af\u540e\u4fdd\u6301\u7387\u4e3a83%\uff09\u671f\u95f4\u4ecd\u51fa\u73b0\u663e\u8457\u7684\u6d3b\u6027\u635f\u5931\u3002
\n \"\"
\n \u3010\u6210\u679c\u63a0\u5f71\u3011<\/strong><\/p>\n

\u8fd1\u65e5\uff0c\u9999\u6e2f\u79d1\u6280\u5927\u5b66\u90b5\u654f\u534e\u6559\u6388\u3001\u5357\u65b9\u79d1\u6280\u5927\u5b66\u8c37\u731b\u6559\u6388\u548c\u7f8e\u56fd\u963f\u8d21\u56fd\u5bb6\u5b9e\u9a8c\u5ba4Khalil Amine\uff08\u5171\u540c\u901a\u8baf\u4f5c\u8005\uff09\u7b49\u4eba<\/strong>\u62a5\u9053\u4e86\u4e00\u79cd\u7531\u539f\u5b50\u5206\u6563\u7684Pt\u548cFe\u5355\u539f\u5b50\u4ee5\u53caPt-Fe\u5408\u91d1\u7eb3\u7c73\u9897\u7c92\u7ec4\u6210\u7684\u6df7\u5408\u7535\u50ac\u5316\u5242\u3002\u71c3\u6599\u7535\u6c60\u6027\u80fd\u6d4b\u8bd5\u8868\u660e\uff0c\u8be5\u7535\u50ac\u5316\u5242\u7684Pt\u8d28\u91cf\u6d3b\u6027\u6bd4\u5546\u7528Pt\/C\u7684\u9ad83.7\u500d\u3002\u66f4\u91cd\u8981\u7684\u662f\uff0c\u5373\u4f7f\u9634\u6781\u4e2dPt\u8d1f\u8f7d\u91cf\u964d\u4f4e\u81f30.015 mgPt<\/sub> cm-2<\/sup>\u65f6\uff0c\u8be5\u71c3\u6599\u7535\u6c60\u663e\u793a\u51fa\u4f18\u5f02\u7684\u8010\u4e45\u6027\uff0c\u5728100000\u6b21\u5faa\u73af\u540e\u4ecd\u5177\u670997%\u7684\u6d3b\u6027\u4fdd\u6301\u7387\uff0c\u5e76\u4e14\u57280.6 V\u4e0b\u8fd0\u884c\u8d85\u8fc7200 h\u540e\u6ca1\u6709\u660e\u663e\u7684\u7535\u6d41\u8870\u51cf\u3002\u8fd9\u4e9b\u7ed3\u679c\u7a81\u51fa\u4e86\u6df7\u5408\u7535\u50ac\u5316\u5242\u4e2d\u6d3b\u6027\u4f4d\u70b9\u4e4b\u95f4\u534f\u540c\u6548\u5e94\u7684\u91cd\u8981\u6027\uff0c\u5e76\u4e3a\u8bbe\u8ba1\u7528\u4e8e\u7535\u5316\u5b66\u5668\u4ef6\u7684\u66f4\u6d3b\u6cfc\u3001\u66f4\u8010\u7528\u7684\u4f4ePt\u57fa\u7535\u50ac\u5316\u5242\u63d0\u4f9b\u4e86\u4e00\u79cd\u65b0\u65b9\u6cd5\u3002\u7814\u7a76\u6210\u679c\u4ee5\u9898\u4e3a\u201cAtomically dispersed Pt and Fe sites and Pt-Fe nanoparticles for durable proton exchange membrane fuel cells\u201d<\/strong>\u53d1\u5e03\u5728\u56fd\u9645\u8457\u540d\u671f\u520aNature Catalysis<\/em>\u4e0a\u3002
\n \"\"
\n \u3010\u6838\u5fc3\u521b\u65b0\u3011<\/strong><\/p>\n

1\u3001\u8be5\u6df7\u5408\u7535\u50ac\u5316\u5242\u7684Pt\u8d28\u91cf\u6d3b\u6027\u6bd4\u71c3\u6599\u7535\u6c60\u4e2d\u5546\u7528Pt\/C\u7684\u9ad8\u51fa3.7\u500d\u3002<\/p>\n

2\u3001\u5f53\u9634\u6781\u4e2dPt\u8d1f\u8f7d\u91cf\u4f4e\u81f30.015 mgPt<\/sub> cm-2<\/sup>\u65f6\uff0c\u8be5\u71c3\u6599\u7535\u6c60\u663e\u793a\u51fa\u4f18\u5f02\u7684\u8010\u4e45\u6027\uff0c\u5728100000\u6b21\u5faa\u73af\u540e\u4ecd\u5177\u670997%\u7684\u6d3b\u6027\u4fdd\u6301\u7387\uff0c\u5e76\u4e14\u57280.6 V\u4e0b\u8fd0\u884c\u8d85\u8fc7200 h\u540e\u6ca1\u6709\u660e\u663e\u7684\u7535\u6d41\u8870\u51cf\u3002<\/p>\n

\u3010\u6570\u636e\u6982\u89c8\u3011<\/strong><\/p>\n

\u56fe\u4e00\u3001Pt-Fe-N-C\u7535\u50ac\u5316\u5242\u4e2d\u591a\u4e2a\u6d3b\u6027\u4f4d\u70b9\u7684\u8868\u5f81<\/strong>\u00a92022 Springer Nature Limited\u3002
\n \"\"\uff08a-b\uff09\u6df7\u5408Pt-Fe-N-C\u50ac\u5316\u5242\u7684TEM\u56fe\u50cf\u548cHAADF-STEM\u56fe\u50cf\uff1b<\/p>\n

\uff08c\uff09\u5355\u4e2a\u5c0f\u7eb3\u7c73\u9897\u7c92\u7684HAADF-STEM\u56fe\u50cf\uff0c\u5177\u6709\u6a21\u62df\u7684STEM\u56fe\u50cf\u548c\u6cbf[100]\u8f74\u7684\u539f\u5b50\u6a21\u578b\uff1b<\/p>\n

\uff08d-e\uff09HAADF-STEM\u56fe\u50cf\u548c\u76f8\u5e94\u7684EELS\u5206\u6790\uff0c\u4ee5\u9a8c\u8bc1Pt\u548cFe\u5728Pt-Fe-N-C\u7535\u50ac\u5316\u5242\u4e2d\u5728\u539f\u5b50\u6c34\u5e73\u4e0a\u7684\u5171\u5b58\uff1b<\/p>\n

\uff08f-g\uff09\u6bd4\u8f83Pt-Fe-N-C\u3001Fe-N-C\u3001Fe\u7b94\u3001FeO\u3001Fe2<\/sub>O3<\/sub>\u548cPt\u7b94\u7684X\u5c04\u7ebf\u5438\u6536\u8fd1\u8fb9\u7ed3\u6784\u5149\u8c31\uff1aPt L<\/em>3<\/sub>-\u8fb9\u7f18\u548cFe K<\/em>-\u8fb9\u7f18\u3002<\/p>\n

\u56fe\u4e8c\u3001\u8bc4\u4f30Pt-Fe-N-C\u6b63\u6781\u5728\u71c3\u6599\u7535\u6c60\u4e2d\u7684\u6027\u80fd<\/strong>\u00a92022 Springer Nature Limited\u3002
\n \"\"\uff08a\uff09H2<\/sub>\/O2<\/sub>\u71c3\u6599\u7535\u6c60\u6781\u5316\u548c\u529f\u7387\u5bc6\u5ea6\u56fe\uff0cPt\/C\u548cPt-N-C\u8d1f\u8f7d\u4e3a0.1\u2009mgPt<\/sub>\u2009cm-2<\/sup>\u3001Pt-Fe-N-C\u8d1f\u8f7d\u4e3a0.015\u2009mgPt<\/sub>\u2009 cm-2<\/sup>\u4ee5\u53ca\u6b63\u6781\u4e2dFe-N-C\u7684\u50ac\u5316\u5242\u8d1f\u8f7d\u91cf3.5\u2009mg\u2009cm-2<\/sup>\uff1b<\/p>\n

\uff08b\uff09Pt-Fe-N-C\u6b63\u6781\u5728\u5faa\u73af\u524d\u548c0.6-0.95\u2009V\u4e4b\u95f4\u7684\u8fdb\u884c100000\u6b21\u7535\u4f4d\u5faa\u73af\u540e\u7684H2<\/sub>\/O2<\/sub>\u71c3\u6599\u7535\u6c60\u6781\u5316\u548c\u529f\u7387\u5bc6\u5ea6\u56fe\uff1b<\/p>\n

\uff08c\uff09\u5728H2<\/sub>\/O2<\/sub>\u548cH2<\/sub>\/\u7a7a\u6c14\u4e2dPt-Fe-N-C\u7684\u7535\u6d41\u5bc6\u5ea6\u4e0e\u65f6\u95f4\u7684\u51fd\u6570\u5173\u7cfb\uff0c\u8d1f\u8f7d\u4e3a0.015\u2009mgPt<\/sub>\u00a0cm-2<\/sup>\uff0c\u7535\u538b\u4e3a0.6\u2009V\uff1b<\/p>\n

\uff08d\uff09\u71c3\u6599\u7535\u6c60\u4e2d\u6536\u96c6\u7684\u6c34\u4e2d\u7684\u6c1f\u5316\u7269\u6d53\u5ea6\u5728H2<\/sub>\/\u7a7a\u6c14\u4e2d\u4f7f\u7528Pt\/C\u3001Fe-N-C\u548cPt-Fe-N-C\u50ac\u5316\u5242\uff0c\u7535\u538b\u4e3a0.6\u2009V\u3002<\/p>\n

\u56fe\u4e09\u3001\u8010\u4e45\u6027\u6d4b\u91cf\u540e\uff0cPt-Fe-N-C\u7535\u50ac\u5316\u5242\u7684\u8868\u5f81<\/strong>\u00a92022 Springer Nature Limited\u3002
\n \"\"\uff08a\uff09\u5728100000\u6b21\u5faa\u73af\u540e\uff0cPt-Fe-N-C\u50ac\u5316\u5242\u7684HAADF-STEM\u56fe\u50cf\uff1b<\/p>\n

\uff08b\uff09EELS\u5206\u6790\u4ee5\u63a2\u6d4b\u4fdd\u5b58\u5b8c\u597d\u7684Pt-N\u548cFe-N\u914d\u4f4d\uff1b<\/p>\n

\uff08c-d\uff09HAADF\u5f3a\u5ea6\u5206\u6790\u7684HAADF-STEM\u56fe\u50cf\u548c\u76f8\u5e94\u7684\u7ebf\u8f6e\u5ed3\uff0c\u9610\u660e\u4e86PtFe@Pt\u6838-\u58f3\u7ed3\u6784\uff1b<\/p>\n

\uff08e-g\uff09\u8f83\u5927\u7684Pt-Fe-N-C\u50ac\u5316\u5242\u7eb3\u7c73\u9897\u7c92\u5728100000\u6b21\u5faa\u73af\u540e\u7684HAADF-STEM\u56fe\u50cf\u548c\u6cbff\u4e2d\u7d2b\u8272\u7bad\u5934\u7684EDX\u7ebf\u8f6e\u5ed3\u663e\u793a\u4e86Fe\u548cPt\u4e4b\u95f4\u7684\u8d28\u91cf\u542b\u91cf\u5dee\u5f02\u3002<\/p>\n

\u56fe\u56db\u3001Pt-Fe-N-C\u7535\u50ac\u5316\u5242\u589e\u5f3a\u6027\u80fd\u7684\u7406\u8bba\u7814\u7a76<\/strong>\u00a92022 Springer Nature Limited\u3002
\n \"\"\uff08a\uff09\u5728U\u2009=\u20090.9\u2009V\u5904\u5404\u79cd\u53ef\u80fd\u7684\u6d3b\u6027\u4f4d\u70b9\u4e0aORR\u7684\u5409\u5e03\u65af\u81ea\u7531\u80fd\u56fe\uff1b<\/p>\n

\uff08b\uff09PtML\/PtFe(111)\u548cPt(111)\u4e0aH2<\/sub>O2<\/sub>\u8fd8\u539f\u53cd\u5e94\u7684\u5409\u5e03\u65af\u81ea\u7531\u80fd\u56fe\u3002<\/p>\n

\u3010\u6210\u679c\u542f\u793a\u3011<\/strong><\/p>\n

\u7efc\u4e0a\u6240\u8ff0\uff0c\u4f5c\u8005\u5408\u6210\u4e86\u7531\u539f\u5b50\u5206\u6563\u7684Pt\u548cFe\u5355\u539f\u5b50\u548cPt-Fe\u5408\u91d1\u7eb3\u7c73\u9897\u7c92\u7ec4\u6210\u7684\u6df7\u5408ORR\u7535\u50ac\u5316\u5242\u3002\u8be5\u6df7\u5408\u7535\u50ac\u5316\u5242\u8868\u73b0\u51fa\u4f18\u5f02\u7684\u8010\u4e45\u6027\uff0c\u57280.6\u548c0.95 V\u4e0b\u8fdb\u884c100000\u6b21\u5faa\u73af\u540e\u4ecd\u5177\u670997%\u7684\u6d3b\u6027\u4fdd\u6301\u7387\uff0c\u5e76\u4e14\u57280.6 V\u4e0b\u8fd0\u884c200 h\u540e\u6ca1\u6709\u660e\u663e\u7684\u7535\u6d41\u8870\u51cf\u3002\u7406\u8bba\u6a21\u62df\u8868\u660ePt-N1<\/sub>C3<\/sub>\u3001Fe-N1<\/sub>C3<\/sub>\u548cPtFe@Pt\u90fd\u662fORR\u7684\u6d3b\u6027\u4f4d\u70b9\u3002\u6df7\u5408\u7535\u50ac\u5316\u5242\u7684\u8010\u7528\u6027\u589e\u5f3a\u53ef\u80fd\u662f\u7531\u4e8e\u51cf\u5c11\u4e86H2<\/sub>O2<\/sub>\u7684\u5f62\u6210\u4ee5\u53ca\u968f\u540e\u7684\u819c\u548c\u79bb\u805a\u7269\u964d\u89e3\u7684\u51cf\u8f7b\u3002\u8be5\u7814\u7a76\u7ed3\u679c\u5f3a\u8c03\u4e86\u6df7\u5408\u7535\u50ac\u5316\u5242\u4e2d\u4e0d\u540c\u6d3b\u6027\u4f4d\u70b9\u4e4b\u95f4\u534f\u540c\u6548\u5e94\u7684\u91cd\u8981\u6027\uff0c\u5e76\u4e3a\u8bbe\u8ba1\u7528\u4e8e\u71c3\u6599\u7535\u6c60\u548c\u5176\u4ed6\u7535\u5316\u5b66\u88c5\u7f6e\u7684\u66f4\u6d3b\u6cfc\u3001\u66f4\u8010\u7528\u7684\u4f4ePt\u57fa\u91d1\u5c5e\u7535\u50ac\u5316\u5242\u63d0\u4f9b\u4e86\u53e6\u4e00\u79cd\u65b9\u6cd5\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1aAtomically dispersed Pt and Fe sites and Pt-Fe nanoparticles for durable proton exchange membrane fuel cells<\/a><\/strong>. Nature Catalysis<\/em>, 2022<\/strong>, DOI: 10.1038\/s41929-022-00796-1.<\/p>\n

\u672c\u6587\u7531CQR\u7f16\u8bd1\u3002<\/p>\n

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