{"id":48836,"date":"2023-09-03T08:48:28","date_gmt":"2023-09-03T00:48:28","guid":{"rendered":"https:\/\/www.chemhui.com\/?p=48836"},"modified":"2023-08-17T10:48:56","modified_gmt":"2023-08-17T02:48:56","slug":"%e8%a5%bf%e5%b7%a5%e5%a4%a7afm%ef%bc%9a%e6%b0%ae%e6%8e%ba%e6%9d%82%e5%a4%9a%e5%ad%94%e7%a2%b3%e4%b8%8aco%e5%8d%95%e5%8e%9f%e5%ad%90%e8%b0%83%e6%8e%a7pt%e7%94%b5%e5%ad%90%e7%bb%93%e6%9e%84%ef%bc%8c","status":"publish","type":"post","link":"http:\/\/www.chemhui.com\/%e8%a5%bf%e5%b7%a5%e5%a4%a7afm%ef%bc%9a%e6%b0%ae%e6%8e%ba%e6%9d%82%e5%a4%9a%e5%ad%94%e7%a2%b3%e4%b8%8aco%e5%8d%95%e5%8e%9f%e5%ad%90%e8%b0%83%e6%8e%a7pt%e7%94%b5%e5%ad%90%e7%bb%93%e6%9e%84%ef%bc%8c\/","title":{"rendered":"\u897f\u5de5\u5927AFM\uff1a\u6c2e\u63ba\u6742\u591a\u5b54\u78b3\u4e0aCo\u5355\u539f\u5b50\u8c03\u63a7Pt\u7535\u5b50\u7ed3\u6784\uff0c\u5b9e\u73b0\u9ad8\u6548\u50ac\u5316pH\u901a\u7528HOR"},"content":{"rendered":"

\u6c22\u6c27\u71c3\u6599\u7535\u6c60(HOFCs)\u88ab\u8ba4\u4e3a\u662f\u5b9e\u73b0\u65b0\u5174\u7eff\u8272\u6c22\u7ecf\u6d4e\u7684\u5173\u952e\u88c5\u7f6e\uff0c\u5176\u80fd\u591f\u5b9e\u73b0\u4ece\u6c22\u5230\u7535\u7684\u8f6c\u6362\u3002\u9634\u79bb\u5b50\u4ea4\u6362\u819c\u71c3\u6599\u7535\u6c60(AEMFC)\u4f5c\u4e3aHOFCs\u7684\u4e00\u5458\uff0c\u7531\u4e8e\u91c7\u7528\u975e\u8d35\u91d1\u5c5e\u7535\u50ac\u5316\u5242\u53ef\u4ee5\u5b9e\u73b0\u9634\u6781\u6c27\u8fd8\u539f\u53cd\u5e94\uff0c\u56e0\u6b64\u88ab\u8ba4\u4e3a\u5177\u6709\u66f4\u5e7f\u9614\u7684\u5e94\u7528\u524d\u666f\u3002\u7136\u800c\uff0cAEMFC\u9633\u6781\u6c22\u6c27\u5316\u53cd\u5e94(HOR)\u7684\u9ad8\u6d3b\u6027\u4e25\u91cd\u4f9d\u8d56\u4e8ePt\u65cf\u91d1\u5c5e(PGM)\u57fa\u50ac\u5316\u5242\u3002\u7136\u800c\uff0cPt\u65cf\u91d1\u5c5e\u7684\u4e30\u5ea6\u548c\u5229\u7528\u7387\u8f83\u4f4e\uff0c\u4ee5\u53caPt\u65cf\u91d1\u5c5e\u57fa\u50ac\u5316\u5242\u7684\u8868\u9762\u6613\u53d7\u4f4e\u6d53\u5ea6(10 ppm)CO\u7684\u6bd2\u5bb3\uff0c\u4e25\u91cd\u9650\u5236\u4e86\u5176\u5e7f\u6cdb\u5e94\u7528\u3002\u56e0\u6b64\uff0c\u8feb\u5207\u9700\u8981\u5f00\u53d1\u5408\u9002\u7684\u7b56\u7565\u6765\u63d0\u9ad8Pt\u65cf\u91d1\u5c5e\u57fa\u50ac\u5316\u5242\u5bf9CO\u7684\u8010\u53d7\u6027\uff0c\u4ee5\u5b9e\u73b0\u5bf9Pt\u65cf\u91d1\u5c5e\u57fa\u50ac\u5316\u5242\u7684\u6709\u6548\u5229\u7528\u3002<\/p>\n

\"1\"<\/p>\n

\"2\"<\/p>\n

\u57fa\u4e8e\u6b64\uff0c\u897f\u5317\u5de5\u4e1a\u5927\u5b66\u9ec4\u7ef4<\/strong>\u548c\u97e9\u4e91\u864e<\/strong>\u7b49\u5236\u5907\u4e86\u4e00\u79cd\u539f\u5b50\u5206\u6563\u7684Pt\u951a\u5b9a\u5728\u5305\u542b\u9884\u7f6e\u5b64\u7acbCo\u539f\u5b50\u7684\u6c2e\u63ba\u6742\u7684\u591a\u5b54\u78b3\u9aa8\u67b6\u4e0a(Pt1<\/sub>@Co1<\/sub>CN)\uff0c\u5728pH\u901a\u7528\u8303\u56f4\u5185\u8868\u73b0\u51fa\u9ad8HOR\u6d3b\u6027\u548c\u8010\u4e45\u6027\u3002\u5728\u9178\u6027\u3001\u78b1\u6027\u548c\u4e2d\u6027\u4ecb\u8d28\u4e2d\uff0c\u4f4ePt\u8d1f\u8f7d\u91cf\u7684Pt1<\/sub>@Co1<\/sub>CN\u50ac\u5316\u5242\u572820 mV\u548c50 mV\u4e0b\u7684\u8d28\u91cf\u6d3b\u6027\u5206\u522b\u4e3a275.5 mA mgPt<\/sub>-1<\/sup>\u3001216 mA mgPt<\/sub>-1<\/sup>\u548c110 mA mgPt<\/sub>-1<\/sup>\uff0c\u5206\u522b\u662f\u5546\u4e1aPtRu\/C\u50ac\u5316\u5242\u768415\u300121.6\u548c20\u500d\u3002<\/p>\n

\u6b64\u5916\uff0c\u5728\u9178\u6027\u3001\u78b1\u6027\u548c\u4e2d\u6027\u7535\u89e3\u6db2\u4e2d\uff0cPt1<\/sub>@Co1<\/sub>CN\u57280.1 VRHE<\/sub>\u4e0b\u8fde\u7eed\u8fd0\u884c6\u4e2a\u5c0f\u65f6\u540e\u7535\u6d41\u5bc6\u5ea6\u5206\u522b\u8870\u51cf\u4e8613.6%\u300114.6%\u548c11.7%\uff0c\u800cPtRu\/C\u7684\u7535\u6d41\u5bc6\u5ea6\u5206\u522b\u8870\u51cf\u4e8622%\u300116%\u548c20.3%\uff0cPt\/C\u7684\u7535\u6d41\u5bc6\u5ea6\u5206\u522b\u8870\u51cf\u4e8648.1%\u300144.1%\u548c20.1%\u3002\u91cd\u8981\u7684\u662f\uff0cPt1<\/sub>@Co1<\/sub>CN\u50ac\u5316\u5242\u7684\u6297CO\u4e2d\u6bd2\u6027\u80fd\u8fdc\u8fdc\u4f18\u4e8e\u5546\u4e1a\u5316\u7684PtRu\/C\u548cPt\/C\u50ac\u5316\u5242\uff0c\u5176\u5728\u542b1000 ppm CO\u7684\u6eb6\u6db2\u4e2d\uff0c\u57280.1 VRHE<\/sub>\u7684\u7535\u538b\u4e0b\u8fd0\u884c2000 s\u4ee5\u4e0a\u4ecd\u4fdd\u6301\u4f18\u5f02\u7684HOR\u6d3b\u6027\u3002<\/p>\n

\"3\"<\/p>\n

\"8\"<\/p>\n

\u5b9e\u9a8c\u7ed3\u679c\u548c\u7406\u8bba\u8ba1\u7b97\u8868\u660e\uff0c\u5f53Pt\u539f\u5b50\u5d4c\u5165\u5230Co\u4f4d\u9644\u8fd1\u7684\u7a7a\u4f4d\u65f6\uff0cN\u548cPt\u539f\u5b50\u4e4b\u95f4\u53d1\u751f\u4e86\u660e\u663e\u7684\u7535\u5b50\u76f8\u4e92\u4f5c\u7528\u3002\u6b64\u5916\uff0cPt\u4f4d\u70b9\u7684\u5f15\u5165\u8c03\u8282\u4e86\u9760\u8fd1Co\u4f4d\u70b9\u7684\u5c40\u90e8\u78b3\u5c42\u7684\u7535\u5b50\u7ed3\u6784\uff0c\u8fdb\u4e00\u6b65\u5f71\u54cd\u4e86Co 3d\u8f68\u9053\u7684\u5206\u5e03\u3002\u540c\u65f6\uff0c\u50ac\u5316\u5242\u4e2dCo\u548cPt\u539f\u5b50\u7684\u53cd\u952e\u6001\u4e3b\u8981\u7531d\u6001\u5411\u4f4e\u80fd\u7ea7\u79fb\u52a8\uff0c\u964d\u4f4e\u4e86\u0394G*H<\/sub>\uff0c\u4fc3\u8fdb\u4e86*H\u7684\u5438\u9644\u548c\u89e3\u79bb\uff0c\u63d0\u9ad8\u4e86\u50ac\u5316\u6d3b\u6027\u3002<\/p>\n

\u7efc\u4e0a\uff0c\u8be5\u9879\u7814\u7a76\u8868\u660e\uff0c\u6539\u53d8\u6d3b\u6027\u4f4d\u70b9\u7684\u7535\u5b50\u7ed3\u6784\u53ef\u4ee5\u5bf9\u6700\u7ec8\u7684\u50ac\u5316\u6027\u80fd\u4ea7\u751f\u826f\u597d\u7684\u5f71\u54cd\uff0c\u8fd9\u4e3a\u5f00\u53d1\u5177\u6709\u4f18\u5f02\u7535\u5316\u5b66\u6027\u80fd\u7684\u539f\u5b50\u5206\u6563Pt\u65cf\u91d1\u5c5e\u57fa\u50ac\u5316\u5242\u63d0\u4f9b\u4e86\u601d\u8def\u3002<\/p>\n

A Highly Efficient pH-Universal HOR Catalyst with Engineered Electronic Structures of Single Pt Sites by Isolated Co Atoms. Advanced Functional Materials, 2023. DOI: 10.1002\/adfm.202306333<\/p>\n","protected":false},"excerpt":{"rendered":"

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