{"id":248474,"date":"2023-03-14T06:00:32","date_gmt":"2023-03-13T22:00:32","guid":{"rendered":"\/\/m.iemloyee.com\/?p=248474"},"modified":"2023-03-10T14:25:56","modified_gmt":"2023-03-10T06:25:56","slug":"%e6%b8%af%e7%a7%91%e5%a4%a7%e9%82%b5%e6%95%8f%e5%8d%8e%e5%9b%a2%e9%98%9fnat-catal-%ef%bc%9a%e4%bc%98%e5%bc%82%e6%9d%82%e5%8c%96orr%e7%94%b5%e5%82%ac%e5%8c%96%e5%89%82%e6%9c%89%e6%9c%9b%e5%8f%96","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=248474","title":{"rendered":"\u6e2f\u79d1\u5927\u90b5\u654f\u534e\u56e2\u961fNat. Catal.\uff1a\u4f18\u5f02\u6742\u5316ORR\u7535\u50ac\u5316\u5242\u6709\u671b\u53d6\u4ee3\u4f20\u7edfPt\/C\u50ac\u5316\u5242\u5b9e\u73b0\u9ad8\u6027\u80fd\u71c3\u6599\u7535\u6c60"},"content":{"rendered":"

\u6e2f\u79d1\u5927\u90b5\u654f\u534e\u56e2\u961f<\/strong>Nat. Catal.<\/strong>\uff1a\u4f18\u5f02\u6742\u5316<\/strong>ORR<\/strong>\u7535\u50ac\u5316\u5242\u6709\u671b\u53d6\u4ee3\u4f20\u7edf<\/strong>Pt\/C<\/strong>\u50ac\u5316\u5242\u5b9e\u73b0\u9ad8\u6027\u80fd\u71c3\u6599\u7535\u6c60<\/strong><\/p>\n

01<\/strong>\u3001\u5bfc\u8bfb<\/strong><\/p>\n

\u8d28\u5b50\u4ea4\u6362\u819c\u71c3\u6599\u7535\u6c60\uff08PEMFCs\uff09\u662f\u4e00\u79cd\u6781\u5177\u6f5c\u529b\u7684\u6e05\u6d01\u80fd\u6e90\u8f6c\u6362\u6280\u672f\uff0c\u8fd1\u4e9b\u5e74\u7814\u7a76\u706b\u70ed\u3002\u50ac\u5316\u5242\u7684\u8bbe\u8ba1\u662f\u4f7f\u7528\u8be5\u6280\u672f\u5341\u5206\u91cd\u8981\u7684\u73af\u8282\uff0c\u7136\u800c\uff0c\u4f20\u7edfPt\u57fa\u7eb3\u7c73\u50ac\u5316\u5242\u6210\u672c\u9ad8\uff0c\u5e76\u4e14\u968f\u7740Pt\u8d1f\u8f7d\u7684\u964d\u4f4e\u5bfc\u81f4\u6d3b\u6027\u4f4d\u70b9\u51cf\u5c11\uff0c\u5176\u7a33\u5b9a\u6027\u8fd8\u4f1a\u53d8\u5dee\uff0c\u8fd9\u963b\u788d\u4e86\u8be5\u6280\u672f\u7684\u8fdb\u4e00\u6b65\u53d1\u5c55\uff0c\u540e\u7eed\u4ecd\u9700\u5bf9\u5176\u8fdb\u884c\u6539\u5584\u7814\u7a76\u3002<\/p>\n

\u5c3d\u7ba1\u79d1\u7814\u5de5\u4f5c\u8005\u5728\u5f00\u53d1\u5148\u8fdb\u7684Pt\u57fa\u50ac\u5316\u5242\u4ee5\u63d0\u9ad8Pt\u5229\u7528\u7387\u548c\u9634\u6781\u6c27\u5316\u8fd8\u539f\u53cd\u5e94\uff08ORR\uff09\u7684\u8d28\u91cf\u6d3b\u6027\uff08MA\uff09\u65b9\u9762\u505a\u51fa\u4e86\u5de8\u5927\u52aa\u529b\uff0c\u4f46\u9ad8\u6d3b\u6027\u548c\u8010\u4e45\u6027\u5728\u71c3\u6599\u7535\u6c60\u4e2d\u5f88\u5c11\u5b9e\u73b0\u3002\u5e78\u8fd0\u7684\u662f\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\u7684ORR\u7535\u50ac\u5316\u5242\u662f\u66ff\u4ee3Pt\u50ac\u5316\u5242\u6709\u5e0c\u671b\u7684\u5019\u9009\u8005\u3002\u4f46\u662f\uff0c\u5b83\u7684\u8010\u4e45\u6027\u8f83\u5dee\u9650\u5236\u4e86\u5176\u5b9e\u9645\u5e94\u7528\u3002<\/p>\n

02<\/strong>\u3001\u6210\u679c\u63a0\u5f71<\/strong><\/p>\n

\u5728\u6b64\uff0c\u9999\u6e2f\u79d1\u6280\u5927\u5b66\u90b5\u654f\u534e\u6559\u6388\u56e2\u961f\u3001\u5357\u65b9\u79d1\u6280\u5927\u5b66\u526f\u6559\u6388\u8c37\u731b\u56e2\u961f\u8054\u5408\u963f\u8d21\u56fd\u5bb6\u5b9e\u9a8c\u5ba4\u5316\u5b66\u79d1\u5b66\u4e0e\u5de5\u7a0b\u90e8Khalil Amine\u6559\u6388\u56e2\u961f\u8bbe\u8ba1\u62a5\u9053\u4e86\u4e00\u79cd\u6df7\u5408\u7535\u50ac\u5316\u5242\uff08Pt-Fe-N-C\uff09\uff0c\u5b83\u7531Pt-Fe\u5408\u91d1\u7eb3\u7c73\u9897\u7c92\u548c\u5728\u6c2e\u63ba\u6742\u78b3\u8f7d\u4f53\u4e2d\u9ad8\u5ea6\u5206\u6563\u7684Pt\u548cFe\u5355\u539f\u5b50\u7ec4\u6210\u3002\u5b83\u7684Pt\u8d28\u91cf\u6d3b\u6027\u662f\u71c3\u6599\u7535\u6c60\u4e2d\u5546\u7528Pt\/C\u76843.7\u500d\u3002\u66f4\u91cd\u8981\u7684\u662f\uff0c\u9634\u6781\u4e2dPt\u8d1f\u8f7d\u8f83\u4f4e\uff080.015 mgPt<\/sub> cm-2<\/sup>\uff09\u7684\u71c3\u6599\u7535\u6c60\u663e\u793a\u51fa\u4f18\u5f02\u7684\u8010\u4e45\u6027\uff0c\u572810\u4e07\u6b21\u5faa\u73af\u540e\u6d3b\u6027\u4fdd\u7559\u7387\u4e3a97%\uff0c\u5e76\u4e14\u57280.6 V\u7535\u538b\u4e0b\u8fd0\u884c\u65f6\u95f4\u8d85\u8fc7200\u5c0f\u65f6\u3002<\/p>\n

\u76f8\u5173\u7814\u7a76\u6210\u679c\u4ee5\u201cAtomically dispersed Pt and Fe sites and Pt\u2013Fe nanoparticles for durable proton exchange membrane fuel cells<\/em><\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728\u56fd\u9645\u9876\u7ea7\u671f\u520aNature Catalysis<\/em><\/strong>\u4e0a\u3002<\/p>\n

\"\"<\/p>\n

03<\/strong>\u3001\u6838\u5fc3\u521b\u65b0\u70b9<\/strong><\/p>\n

1\u3001\u8be5\u7814\u7a76\u6210\u529f\u5408\u6210\u4e86\u4e00\u79cd\u7531\u539f\u5b50\u5206\u6563\u7684Pt\u548cFe\u5355\u539f\u5b50\u548cPt-Fe\u5408\u91d1\u7eb3\u7c73\u9897\u7c92\u7ec4\u6210\u7684\u8d85\u4f4ePt\u8d1f\u8f7d\uff081.7 wt%\uff09\u7684\u6742\u5316ORR\u7535\u50ac\u5316\u5242\u3002<\/p>\n

2\u3001\u8be5\u6742\u5316\u50ac\u5316\u5242\u5b83\u7684Pt\u8d28\u91cf\u6d3b\u6027\u662f\u71c3\u6599\u7535\u6c60\u4e2d\u5546\u7528Pt\/C\u76843.7\u500d\u3002\u66f4\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u9634\u6781\u4e2dPt\u8d1f\u8f7d\u8f83\u4f4e\uff080.015 mgPt<\/sub> cm-2<\/sup>\uff09\u7684\u71c3\u6599\u7535\u6c60\u663e\u793a\u51fa\u4f18\u5f02\u7684\u8010\u4e45\u6027\uff0c\u572810\u4e07\u6b21\u5faa\u73af\u540e\u6d3b\u6027\u4fdd\u7559\u7387\u4e3a97%\uff0c\u5e76\u4e14\u57280.6 V\u7535\u538b\u4e0b\u8fd0\u884c\u65f6\u95f4\u8d85\u8fc7200\u5c0f\u65f6\u3002<\/p>\n

04<\/strong>\u3001\u6570\u636e\u6982\u89c8<\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>1 Pt-Fe-N-C<\/strong>\u7535\u50ac\u5316\u5242\u4e2d\u591a\u4e2a\u6d3b\u6027\u4f4d\u70b9\u7684\u8868\u5f81<\/strong> \u00a9 2022 The Author(s)<\/strong><\/p>\n

\uff08a,b\uff09\u6742\u5316Pt-Fe-N-C\u50ac\u5316\u5242\u7684TEM\u56fe\uff08a\uff09\u548cHAADF-STEM\u56fe\uff08b\uff09\uff1b<\/p>\n

\uff08c\uff09\u5355\u4e2a\u5c0f\u7eb3\u7c73\u9897\u7c92\u7684HAADF-STEM\u56fe\u50cf\uff0c\u5177\u6709\u6a21\u62dfSTEM\u56fe\u50cf\u548c\u6cbf[100]\u533a\u57df\u8f74\u7684\u539f\u5b50\u6a21\u578b\uff1b<\/p>\n

\uff08d,e\uff09HAADF-STEM\u56fe\u50cf\uff08d\uff09\u548c\u76f8\u5e94\u7684EELS\u5206\u6790\uff08e\uff09\uff0c\u4ee5\u9a8c\u8bc1Pt-Fe-N-C\u7535\u50ac\u5316\u5242\u4e2dPt\u548cFe\u5728\u539f\u5b50\u6c34\u5e73\u4e0a\u7684\u5171\u5b58\uff1b<\/p>\n

\uff08f,g\uff09Pt-Fe-N-C\u3001Fe-N-C\u3001Fe\u7b94\u3001FeO\u3001Fe2<\/sub>O3<\/sub>\u548cPt\u7b94\u7684x\u5c04\u7ebf\u5438\u6536near-edge\u7ed3\u6784\u5149\u8c31\u6bd4\u8f83\uff1aPt L3 <\/sub>edge\uff08f\uff09\u548cFe K edge\uff08g\uff09\uff1b<\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>2 Pt-Fe-N-C<\/strong>\u71c3\u6599\u7535\u6c60\u9634\u6781\u6027\u80fd\u8bc4\u4ef7<\/strong> \u00a9 2022 The Author(s)<\/strong><\/p>\n

\uff08a\uff09H2<\/sub>\/O2<\/sub>\u71c3\u6599\u7535\u6c60\u6781\u5316\uff08\u5b9e\u5fc3\u7b26\u53f7\u548c\u5de6\u8f74\uff09\u548c\u529f\u7387\u5bc6\u5ea6\uff08\u7a7a\u5fc3\u7b26\u53f7\u548c\u53f3\u8f74\uff09\u56fe\uff0cPt\/C\uff08\u9ed1\u8272\u4e09\u89d2\u5f62\uff09\u548cPt-N-C\uff08\u9ec4\u8272\u83f1\u5f62\uff09\u7684\u8d1f\u8f7d\u4e3a0.1 mgPt<\/sub> cm-2<\/sup>\uff0cPt-Fe-N-C\uff08\u7ea2\u8272\u5706\u5708\uff09\u7684\u8d1f\u8f7d\u4e3a0.015 mgPt<\/sub> cm-2<\/sup>\uff0cFe-N-C\uff08\u84dd\u8272\u661f\u661f\uff09\u7684\u50ac\u5316\u5242\u8d1f\u8f7d\u4e3a3.5 mg cm-2<\/sup>\uff1b<\/p>\n

\uff08b\uff09Pt-Fe-N-C\u9634\u6781\u5728\u5faa\u73af\u524d\uff08\u9ed1\u8272\uff09\u548c10\u4e07\u6b21\u7535\u4f4d\u5faa\u73af\u540e\uff08\u7ea2\u8272\uff09\u57280.6 -0.95 V\u4e4b\u95f4\u7684H2<\/sub>\/O2<\/sub>\u71c3\u6599\u7535\u6c60\u6781\u5316\uff08\u5b9e\u5fc3\u7b26\u53f7\u548c\u5de6\u8f74\uff09\u548c\u529f\u7387\u5bc6\u5ea6\uff08\u7a7a\u5fc3\u7b26\u53f7\u548c\u53f3\u8f74\uff09\u56fe\uff1b<\/p>\n

\uff08c,d\uff09Pt-Fe-N-C\u57280.015 mgPt<\/sub> cm\u22122<\/sup>\u8d1f\u8f7d\u4e0b\u7684\u7535\u6d41\u5bc6\u5ea6\u968f\u65f6\u95f4\u7684\u53d8\u5316\u3002\u57280.6 \u6761\u4ef6\u4e0b\uff0cH2<\/sub>\/O2<\/sub>\u548cH2<\/sub>\/\u7a7a\u6c14\u73af\u5883\u4e2d\u7684\u6c1f\u6d53\u5ea6\uff08c\uff09\u548cH2<\/sub>\/\u7a7a\u6c14\u73af\u5883\u4e2d\uff08d\uff09\u7535\u52bf\u4fdd\u6301\u4e3a0.6 V\u65f6\u4f7f\u7528\u9634\u6781\u4e2d\u7684Pt\/C\u3001Fe\u2013N\u2013C\u548cPt-Fe-N-C\u50ac\u5316\u5242\u5728\u71c3\u6599\u7535\u6c60\u4e2d\u6536\u96c6\u7684\u6c34\u4e2d\u7684\u6c1f\u6d53\u5ea6\uff1b<\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>3 <\/strong>\u8010\u4e45\u6027\u6d4b\u91cf\u540e<\/strong>Pt-Fe-N-C<\/strong>\u7535\u50ac\u5316\u5242\u7684\u8868\u5f81<\/strong> \u00a9 2022 The Author(s)<\/strong><\/p>\n

\uff08a\uff09100000\u6b21\u5faa\u73af\u540ePt-Fe-N-C\u50ac\u5316\u5242\u7684HAADF-STEM\u56fe\u50cf\uff0c\u5176\u4e2d\u84dd\u8272\u548c\u7ea2\u8272\u865a\u7ebf\u5706\u5708\u5206\u522b\u8868\u793aFe\u548cPt\u5355\u539f\u5b50\uff1b<\/p>\n

\uff08b\uff09EELS\u5206\u6790\uff0c\u4ee5\u63a2\u6d4b\u4fdd\u5b58\u826f\u597d\u7684Pt\u2013N\u548cFe\u2013N\u6784\u578b\uff1b<\/p>\n

\uff08c,d\uff09HAADF-STEM\u56fe\u50cf\uff08c\uff09\u548cHAADF\u5f3a\u5ea6\u5206\u6790\uff08d\uff09\u7684\u76f8\u5e94\u7ebf\u6761\u8f6e\u5ed3\uff08\u6cbfc\u4e2d\u7684\u7eff\u7ebf\uff09\u8bc1\u660e\u4e86PtFe@Pt\u6838\u58f3\u7ed3\u6784\uff1b<\/p>\n

\uff08e-g\uff09\u7ecf\u8fc7100000\u6b21\u5faa\u73af\u540e\u8f83\u5927Pt-Fe-N-C\u50ac\u5316\u5242\u7eb3\u7c73\u9897\u7c92\u7684HAADF-STEM\u56fe\u50cf\uff08e,f\uff09\u548c\u6cbff\u4e2d\u7d2b\u8272\u7bad\u5934\u7684EDX\u7ebf\u8f6e\u5ed3\uff08g\uff09\u663e\u793a\u4e86Fe\u548cPt\u4e4b\u95f4\u7684\u542b\u91cf\u5dee\u5f02\uff0c\u5e76\u8fdb\u4e00\u6b65\u63ed\u793a\u4e86\u4e2d\u5fc3\u5751\u7684\u5f62\u6210\uff1b<\/p>\n

05<\/strong>\u3001\u6210\u679c\u542f\u793a<\/strong><\/p>\n

\u7efc\u4e0a\u6240\u8ff0\uff0c\u8be5\u7814\u7a76\u6210\u529f\u5408\u6210\u4e86\u4e00\u79cd\u7531\u539f\u5b50\u5206\u6563\u7684Pt\u548cFe\u5355\u539f\u5b50\u548cPt-Fe\u5408\u91d1\u7eb3\u7c73\u9897\u7c92\u7ec4\u6210\u7684\u8d85\u4f4ePt\u8d1f\u8f7d\uff081.7 wt%\uff09\u7684\u6742\u5316ORR\u7535\u50ac\u5316\u5242\u3002\u8be5\u50ac\u5316\u5242\u5728\u71c3\u6599\u7535\u6c60\u4f7f\u7528\u4e2d\u5c55\u73b0\u51fa\u4e86\u4f18\u5f02\u7684\u6027\u80fd\uff0c\u7406\u8bba\u6a21\u62df\u8868\u660e\uff0cPt\u2013N1<\/sub>C3<\/sub>\u3001Fe\u2013N1<\/sub>C3<\/sub>\u548cPtFe@Pt\u90fd\u662fORR\u53cd\u5e94\u7684\u6d3b\u6027\u4f4d\u70b9\u3002\u6df7\u5408\u7535\u50ac\u5316\u5242\u8010\u4e45\u6027\u589e\u5f3a\u7684\u539f\u56e0\u53ef\u80fd\u662f\u7531\u4e8eH2<\/sub>O2<\/sub>\u7684\u5f62\u6210\u51cf\u5c11\uff0c\u4ece\u800c\u51cf\u8f7b\u819c\u548c\u79bb\u805a\u4f53\u7684\u964d\u89e3\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\u4e3a\u71c3\u6599\u7535\u6c60\u548c\u5176\u4ed6\u7535\u5316\u5b66\u5668\u4ef6\u8bbe\u8ba1\u6d3b\u6027\u66f4\u9ad8\u548c\u66f4\u8010\u7528\u7684\u4f4e\u8d1f\u8f7d\u94c2\u57fa\u91d1\u5c5e\u7535\u50ac\u5316\u5242\u63d0\u4f9b\u4e86\u65b0\u65b9\u6cd5\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1a<\/strong>Atomically dispersed Pt and Fe sites and Pt\u2013Fe nanoparticles for durable proton exchange membrane fuel cells<\/strong>\uff0c<\/strong>2022<\/strong>\uff0c<\/strong>https:\/ \/ doi.org\/10.1038\/ s41929-022-00796-1<\/strong>\uff09<\/strong><\/p>\n

\u00a0<\/strong><\/p>\n

\u672c\u6587\u7531LWB\u4f9b\u7a3f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6e2f\u79d1\u5927\u90b5\u654f\u534e\u56e2\u961fNat. Catal.\uff1a\u4f18\u5f02\u6742\u5316ORR\u7535\u50ac\u5316\u5242\u6709\u671b\u53d6\u4ee3\u4f20\u7edfPt\/C\u50ac\u5316\u5242\u5b9e\u73b0\u9ad8\u6027\u80fd\u71c3\u6599\u7535\u6c60 01\u3001\u5bfc\u8bfb \u8d28\u5b50\u4ea4\u6362\u819c\u71c3\u6599\u7535\u6c60\uff08PEMFCs\uff09\u662f\u4e00\u79cd…<\/p>\n","protected":false},"author":38813,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-248474","post","type-post","status-publish","format-standard","hentry","category-keji"],"_links":{"self":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/248474"}],"collection":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/users\/38813"}],"replies":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=248474"}],"version-history":[{"count":2,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/248474\/revisions"}],"predecessor-version":[{"id":248498,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/248474\/revisions\/248498"}],"wp:attachment":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=248474"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=248474"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=248474"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}