{"id":247225,"date":"2023-02-27T05:54:35","date_gmt":"2023-02-26T21:54:35","guid":{"rendered":"\/\/m.iemloyee.com\/?p=247225"},"modified":"2023-02-24T16:15:30","modified_gmt":"2023-02-24T08:15:30","slug":"s%e6%8e%ba%e6%9d%82gcn%e5%a2%9e%e5%bc%bapt-n%e9%85%8d%e4%bd%8d%e6%8f%90%e9%ab%98pt%e5%9f%ba%e5%82%ac%e5%8c%96%e5%89%82orr%e6%b4%bb%e6%80%a7","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=247225","title":{"rendered":"ACS Catalysis\uff1aS\u63ba\u6742GCN\u589e\u5f3aPt-N\u914d\u4f4d\u63d0\u9ad8Pt\u57fa\u50ac\u5316\u5242ORR\u6d3b\u6027"},"content":{"rendered":"

\u4e00\u3001\u3010\u5bfc\u8bfb\u3011<\/strong><\/p>\n

\u8d28\u5b50\u4ea4\u6362\u819c\u71c3\u6599\u7535\u6c60\uff08PEMFCs\uff09\u662f\u6781\u5177\u53d1\u5c55\u524d\u666f\u7684\u80fd\u91cf\u8f6c\u5316\u6280\u672f\uff0c\u4f46\u76ee\u524d\u5176\u9634\u6781\u7684\u6c27\u8fd8\u539f\u53cd\u5e94\uff08ORR\uff09\u548c\u9633\u6781\u7684\u6c22\u6c27\u5316\u53cd\u5e94\uff08HOR\uff09\u4ecd\u9ad8\u5ea6\u4f9d\u8d56\u4e8e\u4ef7\u683c\u6602\u8d35\u7684Pt\/C\u50ac\u5316\u5242\u3002Pt\/C\u50ac\u5316\u5242\u7684\u9ad8\u6602\u6210\u672c\u3001\u7531Ostwald\u719f\u5316\u5f15\u8d77\u7684Pt\u56e2\u805a\u4ee5\u53ca\u9634\u6781\u4fa7\u590d\u6742\u7684ORR\u56db\u7535\u5b50\u53cd\u5e94\u52a8\u529b\u5b66\u8f83\u4e3a\u7f13\u6162\u7b49\u56e0\u7d20\u4ecd\u9650\u5236\u7740PEMFCs\u7684\u5927\u89c4\u6a21\u5e94\u7528\uff0c\u56e0\u6b64\u9700\u8981\u7740\u529b\u4e8e\u540c\u65f6\u63d0\u9ad8Pt\u57fa\u50ac\u5316\u5242\u7684\u7a33\u5b9a\u6027\u53caORR\u53cd\u5e94\u50ac\u5316\u6d3b\u6027\u3002\u5c06Pt\u7269\u79cd\u951a\u5b9a\u5728\u529f\u80fd\u5316\u7684\u8f7d\u4f53\u6750\u6599\u4e0a\uff0c\u4e00\u65b9\u9762\u53ef\u4ee5\u4fdd\u6301\u4e0e\u4f20\u7edfPt\/C\u50ac\u5316\u5242\u76f8\u4f3c\u7684\u6784\u578b\uff0c\u53e6\u4e00\u65b9\u9762\u5219\u53ef\u4ee5\u901a\u8fc7\u754c\u9762\u914d\u4f4d\u6216\u5316\u5b66\u952e\u6765\u589e\u5f3a\u91d1\u5c5e-\u8f7d\u4f53\u95f4\u7684\u76f8\u4e92\u4f5c\u7528\uff0c\u4ece\u800c\u540c\u6b65\u63d0\u9ad8Pt\u57fa\u50ac\u5316\u5242\u7684\u6d3b\u6027\u3001\u7a33\u5b9a\u6027\u53caPt\u539f\u5b50\u5229\u7528\u7387\u3002<\/p>\n

\u4e8c\u3001\u3010\u6210\u679c\u63a0\u5f71\u3011<\/strong><\/p>\n

\u6d59\u6c5f\u5927\u5b66\u5b59\u6587\u5e73\u7814\u7a76\u5458\u4e0e\u4e2d\u56fd\u79d1\u5b66\u6280\u672f\u5927\u5b66\u90d1\u65ed\u5347\u526f\u6559\u6388\u8bfe\u9898\u7ec4\u63d0\u51fa\u4ee5\u77f3\u58a8\u76f8\u6c2e\u5316\u78b3\uff08GCN\uff09\u4e3a\u8f7d\u4f53\uff0c\u901a\u8fc7\u91c7\u7528S\u539f\u5b50\u63ba\u6742\u53d6\u4ee3\u5421\u5576N\u4f4d\u70b9\u8bf1\u5bfcGCN\u4e2d\u7684\u7535\u8377\u518d\u5206\u914d\uff0c\u4f7f\u5f97\u4e0eS\u76f8\u90bb\u7684C\u548cN\u539f\u5b50\u5904\u4e8e\u7f3a\u7535\u5b50\u72b6\u6001\uff0c\u7f3a\u7535\u5b50\u72b6\u6001\u7684N\u539f\u5b50\u66f4\u6613\u4e0ePt\u6210\u952e\uff0c\u589e\u52a0\u4e86\u5f02\u8d28\u754c\u9762\u5904\u7684Pt-N\u7684\u914d\u4f4d\u6570\uff0c\u4ece\u800c\u5f3a\u5316\u4e86\u91d1\u5c5e-\u8f7d\u4f53\u95f4\u7684\u76f8\u4e92\u4f5c\u7528\u3002\u8be5\u914d\u4f4d\u8c03\u63a7\u4f7f\u5f97Pt\u76845d\u7535\u5b50\u5bc6\u5ea6\u964d\u4f4e\uff0cd\u5e26\u4e2d\u5fc3\u4e0b\u79fb\uff0c\u6709\u5229\u4e8e\u542b\u6c27\u4e2d\u95f4\u4f53\uff0c\u5c24\u5176\u662fOH*<\/sup>\u7684\u5feb\u901f\u8131\u9644\uff0c\u56e0\u800c\u52a0\u901f\u4e86ORR\u53cd\u5e94\u7684\u52a8\u529b\u5b66\uff0c\u5b9e\u73b0\u4e86Pt\u57fa\u50ac\u5316\u5242\u6d3b\u6027\u4e0e\u7a33\u5b9a\u6027\u7684\u540c\u6b65\u63d0\u9ad8\u3002\u8be5\u7814\u7a76\u6210\u679c\u4ee5\u201cSulfur Doping Triggering Enhanced Pt-N Coordination in Graphitic Carbon Nitride-Supported Pt Electrocatalysts toward Efficient Oxygen Reduction Reaction<\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728\u77e5\u540d\u671f\u520aACS Catalysis<\/em>\u4e0a\u3002<\/p>\n

\"\"<\/p>\n

\u4e09\u3001\u3010\u6838\u5fc3\u521b\u65b0\u70b9\u3011<\/strong><\/p>\n

\u672c\u7814\u7a76\u901a\u8fc7\u5bf9\u8f7d\u4f53\u8fdb\u884c\u5408\u7406\u529f\u80fd\u5316\u5bf9\u8d1f\u8f7d\u578b\u91d1\u5c5e\u50ac\u5316\u5242\u5f02\u8d28\u7ed3\u6784\u7684\u754c\u9762\u5316\u5b66\u8fdb\u884c\u8c03\u8282\uff0c\u5f3a\u5316\u4e86\u91d1\u5c5e-\u8f7d\u4f53\u76f8\u4e92\u4f5c\u7528\uff0c\u8fdb\u800c\u5f71\u54cd\u4e86\u91d1\u5c5e\u4f4d\u70b9\u7684\u7535\u5b50\u7ed3\u6784\uff0c\u63d0\u9ad8\u4e86Pt\u57fa\u50ac\u5316\u5242\u5728ORR\u53cd\u5e94\u4e2d\u7684\u6d3b\u6027\u4e0e\u7a33\u5b9a\u6027\u3002<\/p>\n

\u56db\u3001\u3010\u6570\u636e\u6982\u89c8\u3011<\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>1 (a) Pt\/SGCN<\/strong>\u7535\u50ac\u5316\u5242\u7684\u5408\u6210\u793a\u610f\u56fe\uff1b<\/strong>(b) GCN, SGCN-500, SGCN-550<\/strong>\u548c<\/strong>SGCN-600<\/strong>\u7684<\/strong>XRD<\/strong>\u8c31\u56fe\uff1b<\/strong>(c) GCN, SGCN-500, SGCN-550<\/strong>\u548c<\/strong>SGCN-600<\/strong>\u7684<\/strong>FTIR<\/strong>\u5149\u8c31\uff1b<\/strong>(d,e) 20Pt\/SGCN-550<\/strong>\u7684<\/strong>TEM<\/strong>\u548c<\/strong>HRTEM<\/strong>\u56fe\u7247\u53ca<\/strong>Pt NPs<\/strong>\u7684\u9897\u7c92\u5c3a\u5bf8\u5206\u5e03\u3002<\/strong>\u00a9 2022 <\/strong>American Chemical Society<\/strong><\/p>\n


\n \"\"<\/strong><\/p>\n

\u56fe<\/strong>2 (a) GCN, SGCN-550<\/strong>\u548c<\/strong>20Pt\/SGCN-550<\/strong>\u6837\u54c1\u7684<\/strong>N 1s XPS<\/strong>\u8c31\u56fe\uff1b<\/strong>(b) 20Pt\/GCN<\/strong>\u548c<\/strong>20Pt\/SGCN-550<\/strong>\u7684<\/strong>Pt 4f XPS<\/strong>\u8c31\u56fe\uff1b<\/strong>(c) <\/strong>\u900f\u5c04\u6a21\u5f0f\u4e0b\u6d4b\u5f97\u7684<\/strong>Pt LIII<\/sub><\/strong>\u8fb9<\/strong>XANES<\/strong>\u8c31\u56fe\uff1b<\/strong>(d) Pt LIII<\/sub><\/strong>\u8fb9\u7684<\/strong>k3<\/strong>\u52a0\u6743<\/strong>EXAFS<\/strong>\u8c31\u56fe\u3002<\/strong> \u00a9 2022 American Chemical Society<\/strong><\/p>\n

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

\u56fe<\/strong>3 GCN, SGCN-550, 20Pt\/GCN, 10Pt\/SGCN-550, 20Pt\/SGCN-500, 20Pt\/SGCN-550, 20Pt\/SGCN-600<\/strong>\u548c<\/strong>Pt\/C<\/strong>\u50ac\u5316\u5242\u7684\u7535\u5316\u5b66\u6027\u80fd\u3002<\/strong>(a) 1600 rpm<\/strong>\u4e0b\u7684<\/strong>LSV<\/strong>\u66f2\u7ebf\uff1b<\/strong>(b) <\/strong>\u534a\u6ce2\u7535\u4f4d\u548c<\/strong>ECSA<\/strong>\u7684\u5bf9\u6bd4\uff1b<\/strong>(c) <\/strong>\u5728<\/strong>0.9 V vs.<\/em> RHE<\/strong>\u4e0b\u7684\u8d28\u91cf\u6d3b\u6027\u4e0e\u6bd4\u6d3b\u6027\uff1b<\/strong>(d) S<\/strong>\u5728<\/strong>SGCN<\/strong>\u8f7d\u4f53\u4e2d\u7684\u63ba\u6742\u91cf\u4e0e<\/strong>EXAFS<\/strong>\u5f97\u51fa\u7684<\/strong>Pt-N<\/strong>\u914d\u4f4d\u6570\u53ca\u6d3b\u6027\uff08\u5728<\/strong>0.9 V vs.<\/em> RHE<\/strong>\u4e0b\u7684\u52a8\u529b\u5b66\u7535\u6d41\u5bc6\u5ea6\uff09\u7684\u5173\u7cfb\uff1b<\/strong>(e) <\/strong>\u7531<\/strong>400 rpm<\/strong>\u5230<\/strong>2025 rpm<\/strong>\u4e0b\u7684<\/strong>LSV<\/strong>\u66f2\u7ebf\u8ba1\u7b97\u7684\u7535\u5b50\u8f6c\u79fb\u6570\uff1b<\/strong>(f) <\/strong>\u5728<\/strong>O2<\/sub><\/strong>\u9971\u548c\u7684<\/strong>0.1 M KOH<\/strong>\u6eb6\u6db2\u4e2d\uff0c\u7535\u6d41\u5bc6\u5ea6\u4e3a<\/strong>2 mA cm-2<\/sup><\/strong>\u4e0b\u7684<\/strong>10 h<\/strong>\u957f\u671f\u7a33\u5b9a\u6027\u3002<\/strong> \u00a9 2022 <\/strong>American Chemical Society<\/strong><\/p>\n

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

\u56fe<\/strong>4 (a) 20Pt\/GCN<\/strong>\u548c<\/strong>20Pt\/SGCN-550<\/strong>\u7684<\/strong>PDOS<\/strong>\uff0c\u6570\u503c\u4e3a<\/strong>Pt<\/strong>\u7684<\/strong>d<\/strong>\u5e26\u4e2d\u5fc3\u4f4d\u7f6e\uff1b<\/strong>(b) OH*<\/sup><\/strong>\uff0c<\/strong>O*<\/sup><\/strong>\u548c<\/strong>OOH*<\/sup><\/strong>\u5728<\/strong>(I) 20Pt\/GCN<\/strong>\u548c<\/strong>(II) 20Pt\/SGCN-550<\/strong>\u8868\u9762\u4e0a\u7684\u5438\u9644\u6784\u578b\uff1b<\/strong>(c) U<\/em> = 0 V vs.<\/em> NHE<\/strong>\u65f6\u7684<\/strong>ORR<\/strong>\u53cd\u5e94\u81ea\u7531\u80fd\u56fe\u3002<\/strong> \u00a9 2022 American Chemical Society<\/strong><\/p>\n

\u4e94\u3001\u3010\u6210\u679c\u542f\u793a\u3011<\/strong><\/p>\n

\u672c\u7814\u7a76\u63d0\u51fa\u4e86\u4e00\u79cd\u901a\u8fc7\u5bf9\u8d1f\u8f7d\u578b\u91d1\u5c5e\u50ac\u5316\u5242\u7684\u5f02\u8d28\u754c\u9762\u5904\u8fdb\u884c\u5316\u5b66\u8c03\u63a7\uff0c\u8c03\u8282\u91d1\u5c5e-\u8f7d\u4f53\u76f8\u4e92\u4f5c\u7528\uff0c\u8bbe\u8ba1\u517c\u5177\u9ad8\u6d3b\u6027\u4e0e\u7a33\u5b9a\u6027\u7684\u50ac\u5316\u5242\u7684\u5408\u6210\u7b56\u7565\u3002\u5728\u672c\u7814\u7a76\u57fa\u7840\u4e0a\uff0c\u53ef\u4ee5\u63a2\u7a76\u66f4\u591a\u5bf9\u754c\u9762\u5316\u5b66\u8fdb\u884c\u5408\u7406\u8c03\u63a7\u7684\u624b\u6bb5\uff0c\u5e76\u5c06\u8be5\u7b56\u7565\u5e94\u7528\u4e8e\u66f4\u591a\u7684\u53cd\u5e94\u4f53\u7cfb\u4e2d\u7684\u50ac\u5316\u5242\u8bbe\u8ba1\u4e4b\u4e2d\u3002<\/p>\n

 <\/p>\n

\u539f\u6587\u8be6\u60c5<\/strong>\uff1ahttps:\/\/pubs.acs.org\/doi\/10.1021\/acscatal.2c00944<\/p>\n

\u672c\u6587\u7531MYu\u4f9b\u7a3f\u3002<\/p>\n

\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"

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