{"id":261471,"date":"2024-07-16T06:14:09","date_gmt":"2024-07-15T22:14:09","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=261471"},"modified":"2024-07-15T21:15:47","modified_gmt":"2024-07-15T13:15:47","slug":"%e9%bb%84%e6%98%b1nat-catal-%ef%bc%9a%e8%81%94%e5%90%88pt%e7%ba%b3%e7%b1%b3%e9%a2%97%e7%b2%92%e5%92%8c%e6%b0%a7%e5%8c%96%e9%92%b4coox%e7%b0%87%e5%88%b6%e5%a4%87%e9%ab%98%e6%80%a7%e8%83%bd%e7%87%83","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=261471","title":{"rendered":"\u9ec4\u6631Nat. Catal.\uff1a\u8054\u5408Pt\u7eb3\u7c73\u9897\u7c92\u548c\u6c27\u5316\u94b4CoOx\u7c07\u5236\u5907\u9ad8\u6027\u80fd\u71c3\u6599\u7535\u6c60\u50ac\u5316\u5242"},"content":{"rendered":"

\u4e00\u3001\u3010\u79d1\u5b66\u80cc\u666f\u3011<\/strong><\/p>\n

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\u4e8c\u3001\u3010\u521b\u65b0\u6210\u679c\u3011<\/strong><\/p>\n

\u57fa\u4e8e\u4e0a\u8ff0\u6311\u6218\uff0c\u8fd1\u671f\u610f\u5927\u5229\u56fd\u5bb6\u7814\u7a76\u59d4\u5458\u4f1aAlessandro Fortunelli\u4e3b\u4efb\u4e0e\u52a0\u5dde\u5927\u5b66\u6d1b\u6749\u77f6\u5206\u6821\u9ec4\u6631\u6559\u6388\u56e2\u961f\u8054\u5408\u53d1\u5e03\u4e86\u4e00\u79cd\u7eb3\u7c73\u50ac\u5316\u5242\u7684\u8bbe\u8ba1\uff0c\u8be5\u50ac\u5316\u5242\u7531Pt\u7eb3\u7c73\u9897\u7c92\u548c\u6c27\u5316\u94b4\uff08CoOx<\/sub>\uff09\u7c07\u7ec4\u6210\uff0c\u5176\u4e2d\u6bcf\u4e2aCoOx<\/sub>\u7c07\u90fd\u88abPt\u5916\u58f3\u5b8c\u5168\u4fdd\u62a4\uff0c\u5f62\u6210CoOx<\/sub>@Pt\u7eb3\u7c73\u7ed3\u6784\uff0c\u7814\u7a76\u4eba\u5458\u5c06\u5176\u4f5c\u4e3aPEMFCs\u4e2d\u9ad8\u5ea6\u8010\u7528\u7684ORR\u7535\u50ac\u5316\u5242\uff0c\u89c1\u56fe1\u3002\u8fd9\u79cd\u5d4c\u5165\u6c27\u5316\u7269\u7684\u8bbe\u8ba1\u5145\u5206\u5229\u7528\u4e86Pt -\u6c27\u5316\u7269\u4e4b\u95f4\u7684\u5f3a\u76f8\u4e92\u4f5c\u7528\u6765\u4fee\u9970Pt\u7684\u7535\u5b50\u7ed3\u6784\uff0c\u4ece\u800c\u540c\u65f6\u6291\u5236\u4e86Pt\u539f\u5b50\u7684\u6eb6\u89e3\u5e76\u63d0\u9ad8\u4e86\u50ac\u5316\u6d3b\u6027\u3002\u540c\u65f6\uff0c\u7531\u4e8e\u4e0d\u7a33\u5b9a\u7684\u3001\u5bfc\u7535\u6027\u8f83\u5dee\u7684\u6c27\u5316\u7269\u88ab\u91d1\u5c5ePt\u58f3\u5b8c\u5168\u5c01\u95ed\uff0c\u8fd9\u79cd\u8bbe\u8ba1\u4e5f\u6709\u6548\u5730\u51cf\u8f7b\u4e86CoOx<\/sub>\u7684\u6eb6\u89e3\u5e76\u6709\u6548\u907f\u514d\u4e86\u9633\u79bb\u5b50\u4e2d\u6bd2\u6548\u5e94\u3002\u8be5\u50ac\u5316\u5242\u5728\u7cbe\u7ec6\u5c3a\u5bf8\uff08~1.5 nm\uff09\u4e0b\u8868\u73b0\u51fa\u975e\u51e1\u7684\u7a33\u5b9a\u6027\uff0c\u4e0e\u5546\u7528Pt (C-Pt\/C)\u6216Pt-Co\u5408\u91d1\uff08C-PtCo\/C\uff09\u50ac\u5316\u5242\u76f8\u6bd4\uff0c\u6027\u80fd\u66f4\u4f73\u3002<\/p>\n

\u968f\u540e\u7814\u7a76\u4eba\u5458\u7528CoOx<\/sub>@Pt\u7eb3\u7c73\u50ac\u5316\u5242\u5236\u5907\u7684\u819c\u7535\u6781\u7ec4\u4ef6\u5728\u603bPGM\u8d1f\u8f7d\u4ec5\u4e3a0.10 mg cm-2<\/sup>\u65f6\uff0c\u5177\u67091.10 A mgPGM<\/sub>-1<\/sup>\u7684\u9ad8\u521d\u59cb\u603b\u8d28\u91cf\u6d3b\u6027\u548c1.04 W cm-2<\/sup>\u7684\u9ad8\u989d\u5b9a\u529f\u7387\u5bc6\u5ea6\u3002\u7531\u4e8e\u6700\u5927\u9650\u5ea6\u5730\u51cf\u5c11\u4e86\u91d1\u5c5e\u6eb6\u89e3\uff0c\u6240\u5f00\u53d1\u7684\u819c\u7535\u6781\u7ec4\u4ef6\u5177\u6709\u975e\u5e38\u9ad8\u7684\u8010\u7528\u6027\uff0c\u5b9e\u73b0\u4e8688.2%\u7684\u8d28\u91cf\u6d3b\u6027\u4fdd\u7559\u7387\uff0c0.8 A cm-2<\/sup>\u65f6\u7684\u7535\u538b\u635f\u5931\u4ec5\u4e3a13.3 mV\uff0c\u52a0\u901f\u5e94\u529b\u6d4b\u8bd5\u540e\u7684\u989d\u5b9a\u529f\u7387\u635f\u5931\u4e3a7.5%\u3002\u9ad8\u8010\u4e45\u6027\u4f7f\u5f97CoOx<\/sub>@Pt\u7eb3\u7c73\u50ac\u5316\u5242\u6210\u4e3a\u4e00\u79cd\u975e\u5e38\u6709\u524d\u9014\u7684\u6750\u6599\uff0c\u7279\u522b\u662f\u5728\u91cd\u578b\u71c3\u6599\u7535\u6c60\u5e94\u7528\u4e2d\uff0c\u53ef\u6709\u6548\u89e3\u51b3\u50ac\u5316\u5242\u7684\u8010\u4e45\u6027\u95ee\u9898\u3002<\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>1<\/strong> \u71c3\u6599\u7535\u6c60\u7ed3\u6784\u793a\u610f\u56fe\u548c\u50ac\u5316\u5242\u7684\u8bbe\u8ba1\u56fe\uff1b<\/strong>\u00a9 Springer Nature Limited 2024<\/strong><\/p>\n

\u7814\u7a76\u4eba\u5458\u968f\u540e\u5f00\u5c55\u4e86\u50ac\u5316\u5242\u7684\u8868\u5f81\u6d4b\u8bd5\uff0c\u626b\u63cf\u900f\u5c04\u7535\u5b50\u663e\u5fae\u955c\uff08STEM\uff09\u548c\u9ad8\u5206\u8fa8\u7387TEM\u56fe\u50cf\u663e\u793a\uff0c\u6240\u5f97CoOx<\/sub>@Pt\/C\u4ea7\u7269\u5747\u5300\u5206\u6563\u5728\u78b3\u8f7d\u4f53\u4e0a\uff0c\u5e73\u5747\u7c92\u5f84\u4e3a1.5\u00b10.2 nm\u3002\u7c89\u672bx\u5c04\u7ebf\u884d\u5c04\u7814\u7a76\u663e\u793a\u4e86\u50ac\u5316\u5242\u5177\u6709\u9762\u5fc3\u7acb\u65b9\u7ed3\u6784\u3002\u7535\u5b50\u80fd\u91cf\u635f\u5931\u80fd\u8c31\uff08EELS\uff09\u548c\u76f8\u5e94\u7684\u80fd\u8c31\u56fe\u8868\u660e\uff0cCo\u542b\u91cf\u5728\u7eb3\u7c73\u9897\u7c92\u5185\u90e8\u662f\u7a00\u758f\u5206\u6563\u7684\uff0c\u89c1\u56fe2\u3002\u6709\u8da3\u7684\u662f\uff0cCoOx<\/sub>@Pt\/C\u7684x\u5c04\u7ebf\u5149\u7535\u5b50\u80fd\u8c31\u663e\u793a\u6ca1\u6709Co 2p\u5cf0\uff0c\u8868\u660e\u5927\u90e8\u5206Co\u90fd\u5d4c\u5165\u4e86\u50ac\u5316\u5242\u5185\u90e8\u3002<\/p>\n

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\u56fe<\/strong>2<\/strong>\u78b3\u8d1f\u8f7d<\/strong>CoOx<\/sub>@Pt<\/strong>\u7684\u5408\u6210\u53ca\u7ed3\u6784\u8868\u5f81\uff1b<\/strong>\u00a9 Springer Nature Limited 2024<\/strong><\/p>\n

\u968f\u540e\uff0c\u4f7f\u7528CoOx<\/sub>@Pt\/C\u50ac\u5316\u5242\u7684H2<\/sub>\/\u7a7a\u6c14\u71c3\u6599\u7535\u6c60\u63d0\u4f9b\u4e861.04 W cm-2<\/sup>\u7684\u989d\u5b9a\u529f\u7387\u5bc6\u5ea6\uff0c\u4f18\u4e8eC-Pt\/C (0.88 W cm-2<\/sup>)\u548cC-PtCo\/C (0.92 W cm-2<\/sup>)\uff0c\u5e76\u4e14\u8d85\u8fc7\u4e861.00 W cm\u22122<\/sup>\u7684\u76ee\u6807\u3002\u6b64\u5916\uff0c\u8bc4\u4f30\u71c3\u6599\u7535\u6c60\u4e2dPGM\u5229\u7528\u7387\u7684\u4e00\u4e2a\u6709\u7528\u6307\u6807\u662f\u901a\u8fc7\u603bPGM\u8d1f\u8f7d\u5c06\u529f\u7387\u5f52\u4e00\u5316\u3002\u5728\u8fd9\u65b9\u9762\uff0cCoOx<\/sub>@Pt\/C MEA\u63d0\u4f9b\u4e8610.4 W mgPGM<\/sub>-1<\/sup>\u7684\u9ad8\u94c2\u5229\u7528\u7387\uff0c\u8fdc\u9ad8\u4e8e\u76ee\u6807\u503c\u3002\u6b64\u5916\uff0c\u5728\u6574\u4e2a\u7535\u6d41\u5bc6\u5ea6\u8303\u56f4\u5185\uff0cCoOx<\/sub>@Pt\/C\u7684\u6027\u80fd\u660e\u663e\u4f18\u4e8eC-Pt\/C\u6216C-PtCo\/C\uff0c\u89c1\u56fe3\u3002<\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>3 CoOx<\/sub>@Pt\/C<\/strong>\u3001<\/strong>C-PtCo\/<\/strong>C\u548c<\/strong>C-Pt\/C<\/strong>\u50ac\u5316\u5242\u7684<\/strong>MEA<\/strong>\u6027\u80fd\uff1b<\/strong>\u00a9 Springer Nature Limited 2024<\/strong><\/p>\n

\u968f\u540e\uff0c\u7814\u7a76\u4eba\u5458\u6211\u4eec\u5206\u6790\u4e86C-Pt\/C\u548cC-PtCo\/C\u7eb3\u7c73\u50ac\u5316\u5242\u5728\u819c\u7535\u6781\u7ec4\u4ef6\u4e2d\u7684\u5c3a\u5bf8\u5206\u5e03\uff0c\u89c2\u5bdf\u5230\u4e86\u660e\u663e\u7684\u5c3a\u5bf8\u589e\u957f\uff0c\u8fd9\u79cd\u5c3a\u5bf8\u7684\u5927\u5e45\u589e\u52a0\u53ef\u5f52\u56e0\u4e8e\u7eb3\u7c73\u9897\u7c92\u7684\u5206\u79bb\u3001\u8fd0\u52a8\uff0c\u4ee5\u53ca\u6c27\u5316\u6eb6\u89e3\u3001\u6269\u6563\u548c\u5965\u65af\u7279\u74e6\u5c14\u5fb7\u719f\u5316\u8fc7\u7a0b\u3002\u76f8\u6bd4\u4e4b\u4e0b\uff0cCoOx<\/sub>@Pt\/C\u7684\u5e73\u5747\u5c3a\u5bf8\u4ec5\u9002\u5ea6\u589e\u52a0\uff0c\u5e76\u6e05\u695a\u5730\u5c55\u793a\u4e86\u8be5\u7814\u7a76\u8bbe\u8ba1\u7684\u50ac\u5316\u5242\u80fd\u591f\u6709\u6548\u6291\u5236Pt\u6eb6\u89e3\u4ece\u800c\u9650\u5236\u5c3a\u5bf8\u589e\u957f\u3002\u7279\u522b\u662f\uff0c\u7531\u4e8e\u91d1\u5c5e-\u6c27\u5316\u7269\u7684\u5f3a\u76f8\u4e92\u4f5c\u7528\uff0c\u5d4c\u5165\u7684CoOx<\/sub>\u52a0\u5f3a\u4e86\u4e0e\u8868\u9762Pt\u539f\u5b50\u7684\u76f8\u4e92\u4f5c\u7528\uff0c\u5927\u5927\u51cf\u7f13\u4e86\u8868\u9762Pt\u539f\u5b50\u7684\u6c27\u5316\u548c\u6eb6\u89e3\uff0c\u5ef6\u7f13\u4e86\u5965\u65af\u7279\u74e6\u5c14\u5fb7\u719f\u5316\u8fc7\u7a0b\uff0c\u89c1\u56fe4\u3002<\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>4 BOL<\/strong>\u548c<\/strong>EOL<\/strong>\u50ac\u5316\u5242\u7684\u5c3a\u5bf8\u3001\u7ec4\u6210\u548c<\/strong>CO<\/strong>\u6eb6\u51fa\u5206\u6790\uff1b<\/strong>\u00a9 Springer Nature Limited 2024<\/strong><\/p>\n

\u8be5\u7814\u7a76\u63d0\u51fa\u4e86\u4e00\u79cd\u7cbe\u7ec6\u7684\u7eb3\u7c73\u50ac\u5316\u5242CoOx<\/sub>@Pt\u7684\u8bbe\u8ba1\uff0c\u4e3a\u71c3\u6599\u7535\u6c60\u50ac\u5316\u5242\u7684\u53d1\u5c55\u505a\u51fa\u4e86\u7a81\u7834\u6027\u8d21\u732e\uff0c\u4ee5\u201cEmbedded oxide clusters stabilize sub-2\u2009nm Pt nanoparticles for highly durable fuel cells<\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728\u56fd\u9645\u9876\u7ea7\u671f\u520aNature catalysis<\/strong>\u4e0a\uff0c\u5f15\u8d77\u4e86\u76f8\u5173\u9886\u57df\u7814\u7a76\u4eba\u5458\u70ed\u8bae\u3002<\/p>\n

\"\"<\/p>\n

\u4e09\u3001\u3010\u79d1\u5b66\u542f\u8fea\u3011<\/strong><\/p>\n

\u7efc\u4e0a\u6240\u8ff0\uff0c\u8be5\u7814\u7a76\u5c06\u5206\u6563\u7684CoOx<\/sub>\u7c07\u5d4c\u5165\u5230\u7ec6\u5c0f\u7684Pt\u7eb3\u7c73\u9897\u7c92\u4e2d\uff0c\u4ee5\u6b64\u8bf1\u5bfc\u5f3a\u70c8\u7684\u91d1\u5c5e-\u6c27\u5316\u7269\u76f8\u4e92\u4f5c\u7528\uff0c\u8bbe\u8ba1\u4e86\u4e00\u4e2a\u9ad8\u6d3b\u6027\u548c\u7a33\u5b9a\u7684CoOx<\/sub>@Pt\/C\u7eb3\u7c73\u50ac\u5316\u5242\u3002\u8be5\u7eb3\u7c73\u50ac\u5316\u5242\u8868\u73b0\u51fa\u4e86\u5353\u8d8a\u7684\u71c3\u6599\u7535\u6c60\u6027\u80fd\uff0c\u5353\u8d8a\u7684\u84c4\u7535\u6027\u80fd\u4f7f\u71c3\u6599\u7535\u6c60\u7684\u4f7f\u7528\u5bff\u547d\u8fbe\u523015000\u5c0f\u65f6\u3002\u6700\u540e\uff0c\u7814\u7a76\u53d1\u73b0\uff0c\u5728Pt\u7eb3\u7c73\u9897\u7c92\u4e2d\u5d4c\u5165\u7684\u7a00\u758f\u5206\u6563\u7684CoOx<\/sub>\u7269\u79cd\u5728\u6982\u5ff5\u4e0a\u4e0e\u4f20\u7edf\u7684\u6c27\u5316\u7269\u8d1f\u8f7d\u50ac\u5316\u5242\u4e0d\u540c\u3002\u8003\u8651\u5230\u71c3\u6599\u7535\u6c60\u7cfb\u7edf\u7684\u6210\u672c\u548c\u5bff\u547d\u662f\u4e24\u5927\u4e3b\u8981\u969c\u788d\uff0c\u8be5\u7814\u7a76\u4e3a\u71c3\u6599\u7535\u6c60\u50ac\u5316\u5242\u7684\u53d1\u5c55\u5e26\u6765\u4e86\u91cd\u5927\u98de\u8dc3\uff0c\u63d0\u9ad8\u4e86PEMFCs\u5728\u5546\u4e1a\u9886\u57df\u53d1\u5c55\u7684\u6f5c\u529b\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1a<\/strong>Embedded oxide clusters stabilize sub-2\u2009nm Pt nanoparticles for highly durable fuel cells<\/strong>\uff0c<\/strong>2024<\/strong>\uff0c<\/strong>https:\/\/doi.org\/10.1038\/s41929-024-01180-x<\/strong>\uff09<\/strong><\/p>\n

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