{"id":49586,"date":"2023-12-25T08:43:55","date_gmt":"2023-12-25T00:43:55","guid":{"rendered":"https:\/\/www.chemhui.com\/?p=49586"},"modified":"2023-12-08T09:44:16","modified_gmt":"2023-12-08T01:44:16","slug":"%e5%a4%a9%e6%b4%a5%e5%a4%a7%e5%ad%a6jacs%ef%bc%9a%e6%9e%84%e5%bb%ba%e7%a9%ba%e9%97%b4%e7%9b%b8%e5%85%b3pt-mn%e5%8e%9f%e5%ad%90%e5%af%b9%ef%bc%8c%e9%81%bf%e5%85%8dsabatier%e9%99%90%e5%88%b6%e4%bb%a5","status":"publish","type":"post","link":"http:\/\/www.chemhui.com\/%e5%a4%a9%e6%b4%a5%e5%a4%a7%e5%ad%a6jacs%ef%bc%9a%e6%9e%84%e5%bb%ba%e7%a9%ba%e9%97%b4%e7%9b%b8%e5%85%b3pt-mn%e5%8e%9f%e5%ad%90%e5%af%b9%ef%bc%8c%e9%81%bf%e5%85%8dsabatier%e9%99%90%e5%88%b6%e4%bb%a5\/","title":{"rendered":"\u5929\u6d25\u5927\u5b66JACS\uff1a\u6784\u5efa\u7a7a\u95f4\u76f8\u5173Pt-Mn\u539f\u5b50\u5bf9\uff0c\u907f\u514dSabatier\u9650\u5236\u4ee5\u63d0\u5347\u6c27\u7535\u8fd8\u539f\u6d3b\u6027"},"content":{"rendered":"

\u6c22\u71c3\u6599\u7535\u6c60\u662f\u4e00\u79cd\u7406\u60f3\u7684\u53d1\u7535\u88c5\u7f6e\uff0c\u4f46\u7531\u4e8e\u9634\u6781\u6c27\u8fd8\u539f\u53cd\u5e94(ORR)\u7684\u9ad8\u8fc7\u7535\u4f4d\uff0c\u6c22\u71c3\u6599\u7535\u6c60\u7684\u80fd\u91cf\u5229\u7528\u7387\u4ecd\u8fdc\u4f4e\u4e8e83%\u3002\u76ee\u524d\uff0c\u8d35\u91d1\u5c5e\uff0c\u901a\u5e38\u662f\u94c2(Pt)\uff0c\u5728\u5546\u4e1a\u71c3\u6599\u7535\u6c60\u4e2d\u4f5c\u4e3aORR\u7684\u50ac\u5316\u5242\uff0c\u4f46\u7531\u4e8e\u8d35\u91d1\u5c5e\u4ef7\u683c\u6602\u8d35\u548c\u7a00\u7f3a\u6027\u800c\u4e0d\u80fd\u5927\u89c4\u6a21\u4f7f\u7528\u3002\u539f\u5b50\u5206\u6563\u50ac\u5316\u5242\u5177\u6709\u6700\u5927\u7684\u539f\u5b50\u5229\u7528\u7387\u548c\u6700\u5c11\u7684\u50ac\u5316\u5242\u7528\u91cf\uff0c\u5728ORR\u7b49\u7535\u50ac\u5316\u53cd\u5e94\u4e2d\u5177\u6709\u5e7f\u9614\u7684\u5e94\u7528\u524d\u666f\u3002<\/p>\n

\u7136\u800c\uff0c\u7531\u4e8ePt\u5728\u71c3\u6599\u7535\u6c60\u4e2d\u7684\u539f\u5b50\u5206\u6563\u6027\uff0c\u6709\u6548\u63d0\u5347\u529f\u7387\u5bc6\u5ea6\u548c\u8010\u4e45\u6027\u4ecd\u7136\u662f\u4e00\u4e2a\u5de8\u5927\u7684\u6311\u6218\u3002\u540c\u65f6\uff0c\u7ebf\u6027\u5c3a\u5ea6\u5173\u7cfb(LSR)\u7ed9\u5927\u591a\u6570\u50ac\u5316\u5242(\u5305\u62ec\u57fa\u51c6Pt\u50ac\u5316\u5242)\u5e26\u6765\u4e86\u56fa\u6709\u7684Sabatier\u9650\u5236\uff0c\u5bfc\u81f4\u50ac\u5316\u5242\u5177\u6709\u4e0d\u53ef\u903e\u8d8a\u7684\u8fc7\u7535\u4f4d\u4e0a\u9650\uff0c\u963b\u788d\u4e86\u9ad8\u6548\u7535\u50ac\u5316\u5242\u7684\u53d1\u5c55\u3002<\/p>\n

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

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

\u4e3a\u4e86\u514b\u670d\u8fd9\u79cd\u5c40\u9650\u6027\uff0c\u5929\u6d25\u5927\u5b66\u90b9\u5409\u519b<\/strong>\u548c\u9ec4\u632f\u5cf0<\/strong>\u7b49\u4ee5\u4e0d\u540c\u6676\u76f8\u7684\u5bcc\u571f\u91d1\u5c5e\u6c27\u5316\u7269\u4e3a\u6a21\u578b\u6750\u6599\uff0c\u901a\u8fc7\u6784\u5efa\u7a7a\u95f4\u76f8\u5173\u7684Pt-Mn\u5bf9\u4f4d\u70b9\uff0c\u63d0\u51fa\u4e86\u4e00\u79cd\u6709\u6548\u7684\u52a8\u6001\u53cd\u5e94\u8def\u5f84\uff0c\u5b9e\u73b0\u4e86\u9ad8\u6d3b\u6027\u4e0e\u4f4ePt\u8d1f\u8f7d\u91cf\u4e4b\u95f4\u7684\u826f\u597d\u5e73\u8861\u3002<\/p>\n

\u5b9e\u9a8c\u548c\u7406\u8bba\u8ba1\u7b97\u8868\u660e\uff0c\u901a\u8fc7\u63a7\u5236Pt-Mn\u5bf9\u7684\u91d1\u5c5e\u95f4\u8ddd\u548c\u7535\u8377\u5206\u5e03\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fc3\u8fdb\u8fd9\u4e9b\u4f4d\u70b9\u901a\u8fc7\u6865\u6784\u578b\u65ad\u88c2O-O\u952e\uff0c\u907f\u514d*OOH\u4e2d\u95f4\u4f53\u7684\u5f62\u6210\u3002\u540c\u65f6\uff0c\u52a8\u6001\u5438\u9644\u6784\u578b\u7531O2<\/sub>\u7684\u6865\u5f0f\u6784\u578b\u8f6c\u53d8\u4e3a*OH\u7684\u7aef\u63a5\u6784\u578b\uff0c\u4fc3\u8fdb\u4e86*OH\u5728\u8be5\u91d1\u5c5e\u5bf9\u4e2dMn\u4f4d\u7684\u89e3\u5438\uff0c\u4ece\u800c\u907f\u514d\u4e86Sabatier\u7684\u9650\u5236\u3002<\/p>\n

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

\"9\"<\/p>\n

\u56e0\u6b64\uff0c\u6240\u5236\u5907\u7684Pt-Mn\/\u03b2-MnO2<\/sub>\u8868\u73b0\u51fa\u4f18\u5f02\u7684ORR\u6d3b\u6027\u548c\u7a33\u5b9a\u6027\uff0c\u5176\u534a\u6ce2\u7535\u4f4d(E1\/2<\/sub>)\u4e3a0.93 V\uff0c\u5e76\u4e14\u5728\u8fde\u7eed\u7535\u89e370 h\u5185\u51e0\u4e4e\u6ca1\u6709\u53d1\u751f\u6d3b\u6027\u964d\u89e3\u3002\u6b64\u5916\uff0c\u5c06\u8be5\u50ac\u5316\u5242\u5e94\u7528\u4e8eH2<\/sub>-O2<\/sub>\u9634\u79bb\u5b50\u4ea4\u6362\u819c\u71c3\u6599\u7535\u6c60\u9634\u6781\uff0c\u8be5\u7535\u6c60\u57280.6 V\u7535\u538b\u4e0b\u7684\u5cf0\u503c\u529f\u7387\u5bc6\u5ea6\u8fbe\u5230287 mW cm-2<\/sup>\uff0c\u7a33\u5b9a\u6027\u8fbe\u5230500 h\uff0c\u4f18\u4e8e\u5546\u4e1aPt\/C\u50ac\u5316\u5242\u3002<\/p>\n

\u603b\u7684\u6765\u8bf4\uff0c\u8be5\u9879\u5de5\u4f5c\u63ed\u793a\u4e86\u539f\u5b50\u5bf9\u4f4d\u70b9\u4e0e\u591a\u79cd\u53cd\u5e94\u7269\/\u4e2d\u95f4\u4f53\u7684\u9002\u5e94\u6027\u6210\u952e\u76f8\u4e92\u4f5c\u7528\uff0c\u4e3a\u5408\u7406\u8bbe\u8ba1\u8d85\u8d8aSabatier\u6700\u4f73\u503c\u7684\u9ad8\u6548\u539f\u5b50\u7ea7\u5206\u6563ORR\u50ac\u5316\u5242\u63d0\u4f9b\u4e86\u6307\u5bfc\u3002<\/p>\n

Avoiding Sabatier\u2019s limitation on spatially correlated Pt\u2013Mn atomic pair sites for oxygen electroreduction. Journal of the American Chemical Society, 2023. DOI: 10.1021\/jacs.3c08665<\/p>\n","protected":false},"excerpt":{"rendered":"

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