{"id":48708,"date":"2023-08-16T08:23:14","date_gmt":"2023-08-16T00:23:14","guid":{"rendered":"https:\/\/www.chemhui.com\/?p=48708"},"modified":"2023-07-31T10:23:55","modified_gmt":"2023-07-31T02:23:55","slug":"acs-nano%ef%bc%9a%e4%b8%ad%e7%a9%ba%e7%bb%93%e6%9e%84%e7%9a%84pt-rh%e7%94%b5%e5%82%ac%e5%8c%96%e5%89%82%e7%9a%84%e7%ba%a6%e6%9d%9f%e6%95%88%e5%ba%94%e5%ae%9e%e7%8e%b0%e4%b9%99%e9%86%87%e5%ae%8c","status":"publish","type":"post","link":"http:\/\/www.chemhui.com\/acs-nano%ef%bc%9a%e4%b8%ad%e7%a9%ba%e7%bb%93%e6%9e%84%e7%9a%84pt-rh%e7%94%b5%e5%82%ac%e5%8c%96%e5%89%82%e7%9a%84%e7%ba%a6%e6%9d%9f%e6%95%88%e5%ba%94%e5%ae%9e%e7%8e%b0%e4%b9%99%e9%86%87%e5%ae%8c\/","title":{"rendered":"ACS Nano\uff1a\u4e2d\u7a7a\u7ed3\u6784\u7684Pt-Rh\u7535\u50ac\u5316\u5242\u7684\u7ea6\u675f\u6548\u5e94\u5b9e\u73b0\u4e59\u9187\u5b8c\u5168\u7535\u6c27\u5316"},"content":{"rendered":"
\u76f4\u63a5\u4e59\u9187\u71c3\u6599\u7535\u6c60(DEFCs)\u5728\u79fb\u52a8\u7535\u6e90\u4e2d\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u56e0\u4e3a\u4e59\u9187\u7684\u80fd\u91cf(8.0 kWh kg-1<\/sup>)\u6bd4\u538b\u7f29\u6c22\u6c14(1.2 kWh kg-1<\/sup>\uff0c\u57281000 psi\uff0c25\u2103\u4e0b)\u548c\u5176\u4ed6\u6db2\u4f53\u71c3\u6599(\u5982\u6c28(3.2 kWh kg-1<\/sup>)\u548c\u7532\u9187(6.1 kWh kg-1<\/sup>))\u66f4\u9ad8\uff0c\u800c\u4e14\u76f8\u5bf9\u5b89\u5168\u3002\u519c\u4e1a\u90e8\u95e8\u7684\u751f\u7269\u8d28\u751f\u4ea7\u4e5f\u5f88\u5bb9\u6613\u4ee5\u4f4e\u6210\u672c\u63d0\u4f9b\u4e59\u9187\uff0c\u800c\u4e14\u6bd4\u5176\u4ed6\u71c3\u6599\u66f4\u5bb9\u6613\u50a8\u5b58\u548c\u8fd0\u8f93\u3002<\/p>\n \u7279\u522b\u662f\uff0c\u968f\u7740\u9634\u79bb\u5b50\u4ea4\u6362\u819c(AEMs)\u7684\u53d1\u5c55\uff0c\u78b1\u6027DEFCs\u5f15\u8d77\u4e86\u6781\u5927\u7684\u5174\u8da3\uff0c\u56e0\u4e3a\u9634\u6781\u6c27\u8fd8\u539f\u53cd\u5e94(ORR)\u548c\u9633\u6781\u4e59\u9187\u6c27\u5316\u53cd\u5e94(EOR)\u90fd\u6bd4\u5728\u9178\u6027\u4e2d\u5177\u6709\u66f4\u6709\u5229\u7684\u52a8\u529b\u5b66\u3002\u5c3d\u7ba1\u5177\u6709\u826f\u597d\u7684\u7406\u8bba\u57fa\u7840\uff0c\u4f46\u8003\u8651\u5230\u4e59\u9187C-C\u952e\u65ad\u88c2\u6b65\u9aa4\u7684\u70ed\u529b\u5b66\u548c\u52a8\u529b\u5b66\u6311\u6218\u6240\u5bfc\u81f4\u768412\u7535\u5b50\u8f6c\u79fb\u6c27\u5316\u8fc7\u7a0b\u7684\u590d\u6742\u6027\uff0c\u4e59\u9187\u5728\u78b1\u6027DEFCs\u4e2d\u5e94\u7528\u7684\u4e3b\u8981\u6311\u6218\u6d89\u53ca\u5230\u5bf9\u6240\u9700\u4ea7\u7269\u7684\u4e0d\u5b8c\u5168\u6c27\u5316\u3002<\/p>\n \u57fa\u4e8e\u6b64\uff0c\u9ebb\u7701\u7406\u5de5\u5b66\u9662Betar M. Gallant\u7b49\u4eba<\/strong>\u8bbe\u8ba1\u4e86Pt1-x<\/sub>Rhx<\/sub>\u7a7a\u5fc3\u7403\u7535\u50ac\u5316\u5242\uff0c\u5e76\u6839\u636e\u7c92\u5f84(250\u548c350 nm)\u548c\u8d1f\u8f7d\u8d28\u91cf\uff0c\u901a\u8fc7\u5fae\u8c03\u7535\u6781\u5b54\u9699\u7387\u6765\u8c03\u63a7\u5c40\u90e8pH\u503c\u7684\u53d8\u5316\u3002\u672c\u6587\u7684\u7814\u7a76\u7b56\u7565\u6709\u6548\u7684\u63d0\u9ad8\u4e86\u50ac\u5316\u5242\u7684\u50ac\u5316\u6027\u80fd\u3002<\/p>\n \u57fa\u4e8e\u672c\u6587\u57281.0 M\u4e59\u9187+1.0 M KOH\u7535\u89e3\u8d28\u4e2d\u7684\u6027\u80fd\u6d4b\u8bd5\uff0c\u53ef\u4ee5\u53d1\u73b0250 nm\u7684Pt0.5<\/sub>Rh0.5<\/sub>\u7a7a\u5fc3\u7403\u663e\u793a\u51fa\u4f18\u8d8a\u7684EOR\u6027\u80fd\uff0c\u5176\u8d28\u91cf\u6d3b\u6027\u4e3a2523 A gPtRh<\/sub>-1<\/sup>(3853 A gPt<\/sub>-1<\/sup>)\uff0c\u6bd4250 nm\u5927\u5c0f\u7684Pt\u7a7a\u5fc3\u7403\u9ad84\u500d\u3002\u6b64\u5916\uff0c\u5728N2<\/sub>\u9971\u548c\u76840.5 M KOH+1.0 M\u4e59\u9187\u7535\u89e3\u8d28\u4e2d\u7684\u6d4b\u8bd5\u53ef\u4ee5\u53d1\u73b0\uff0c\u5f53250_Pt0.5<\/sub>Rh0.5<\/sub>\u7684\u8d28\u91cf\u8d1f\u8f7d\u4ece5 \u03bcg\u589e\u52a0\u523020 \u03bcg\u65f6\uff0cEOR\u7684\u5faa\u73af\u4f0f\u5b89(CV)\u66f2\u7ebf\u9075\u5faa\u7684\u8d8b\u52bf\u4e0eKOH\u6d53\u5ea6\u964d\u4f4e\u65f6\u76f8\u4f3c\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u8f83\u9ad8\u7684\u8d28\u91cf\u8d1f\u8f7d\u5bfc\u81f4\u8d28\u91cf\u6d3b\u6027\u964d\u4f4e\uff0cEb<\/sub>(EOR\u7684\u518d\u6d3b\u5316\u7535\u4f4d)\u66f4\u9ad8\uff0c\u76f8\u5e94\u7684If<\/sub>\/Ib<\/sub>(\u6b63\u5411\u548c\u53cd\u5411\u626b\u63cf\u7684\u5cf0\u503c\u7535\u6d41\u6bd4)\u66f4\u4f4e\uff0c\u8fd9\u8868\u660e\u5728\u7535\u50ac\u5316\u5242\u8868\u9762\u5c40\u90e8\u5f62\u6210\u4e86\u9178\u6027\u66f4\u5f3a\u7684\u73af\u5883\u3002\u9664\u4e86\u5c40\u90e8pH\u503c\u7684\u53d8\u5316\u5916\uff0c\u6240\u89c2\u5bdf\u5230\u7684\u8d28\u91cf\u6d3b\u6027\u7684\u964d\u4f4e\u539f\u5219\u4e0a\u4e5f\u53ef\u80fd\u5f52\u56e0\u4e8e\u50ac\u5316\u5242\u5c42\u5185\u4e59\u9187\u7684\u8d28\u91cf\u8f6c\u79fb\u90e8\u5206\u53d7\u963b\u3002\u5c3d\u7ba1\u6d3b\u6027\u968f\u7740\u8d1f\u8f7d\u7684\u589e\u52a0\u800c\u964d\u4f4e\uff0c\u4f46\u5728\u4e4b\u524d\u6587\u732e\u4e2d\u540c\u6837\u5229\u7528\u542b0.5 M KOH\u7684\u7535\u89e3\u8d28\uff0c\u4ee5\u53ca\u5728\u76f8\u4f3c\u7684\u8d1f\u8f7d\u91cf\u8303\u56f4(20-100 \u03bcg cm-2<\/sup>)\u5185\uff0c\u672c\u6587\u768410 \u03bcg 250_Pt0.5<\/sub>Rh0.5<\/sub>(~ 50 \u03bcg cm-2<\/sup>)\u7684EOR\u6d3b\u6027(1629 A gPtRh<\/sub>-1<\/sup>\uff0c2488 A gPt-1)\u5728\u6700\u5148\u8fdb\u7684\u4e8c\u5143\u7535\u50ac\u5316\u5242\u4e2d\u4e5f\u662f\u5341\u5206\u7a81\u51fa\u7684\u3002<\/p>\n \u66f4\u52a0\u91cd\u8981\u7684\u662f\uff0c\u968f\u7740250_Pt0.5<\/sub>Rh0.5<\/sub>\u4e2dKOH\u4f53\u79ef\u6d53\u5ea6\u4ece1.0\u964d\u4f4e\u81f30.5\u548c0.2 M\uff0cC1\u9014\u5f84\u7684\u6cd5\u62c9\u7b2c\u6548\u7387(FE)\u5206\u522b\u4ece15.6\u663e\u8457\u589e\u52a0\u81f338.3\u548c41.1%\uff0c\u8fd9\u4e3b\u8981\u662f\u7531\u4e8eOHads<\/sub>\u8986\u76d6\u7387\u964d\u4f4e\uff0c\u4ece\u800c\u4e3aC-C\u952e\u65ad\u88c2\u63d0\u4f9b\u4e86\u66f4\u591a\u53ef\u7528\u7684\u90bb\u8fd1\u6d3b\u6027\u4f4d\u70b9\u3002\u4e0e\u5148\u524d\u7684\u7ed3\u679c\u4e00\u81f4\uff0c\u901a\u8fc7\u66f4\u5c0f\u7684\u7c92\u5f84\u548c\/\u6216\u66f4\u9ad8\u7684\u7535\u50ac\u5316\u5242\u8d1f\u8f7d\u6765\u589e\u52a0\u50ac\u5316\u5242\u7684\u5b54\u9699\u7387\uff0c\u5bf9\u4e8e0.5 M KOH\u7684\u7535\u89e3\u8d28\uff0cC1\u548c\u4e59\u9178\u9014\u5f84\u4e5f\u6709\u7c7b\u4f3c\u7684\u6709\u5229\u7684FE\u8d8b\u52bf\u3002\u7279\u522b\u662f\uff0c\u5728\u76f8\u540c\u8d28\u91cf\u8d1f\u8f7d(20 \u03bcg)\u4e0b\uff0c350 nm\u7c92\u5f84\u7684\u50ac\u5316\u5242\u5bf9C1\u9014\u5f84\u7684FE\u4ec5\u4e3a9.5%\uff0c\u800c250 nm\u7c92\u5f84\u7684\u50ac\u5316\u5242\u5bf9C1\u9014\u5f84\u7684FE\u5219\u663e\u8457\u589e\u52a0\u81f338.3%\u3002<\/p>\n \u672c\u6587\u91c7\u7528\u727a\u7272SiO2<\/sub>\u6a21\u677f\u8f85\u52a9\u6eb6\u6db2\u6cd5\u5408\u6210\u4e86\u5927\u5c0f(250\u548c350 nm)\u548c\u6210\u5206\u53ef\u8c03\u7684Pt1-x<\/sub>Rhx<\/sub>(x=0.0\u30010.4\u30010.5\u30010.6\u548c0.67)\u7a7a\u5fc3\u7403\u50ac\u5316\u5242\u3002Rh\u4f5c\u4e3a\u7b2c\u4e8c\u5408\u91d1\u91d1\u5c5e\uff0c\u901a\u8fc7\u4f5c\u4e3aC-C\u952e\u65ad\u88c2\u7684\u53cc\u529f\u80fd\u6d3b\u6027\u4f4d\u70b9\uff0c\u901a\u8fc7\u03b2-\u78b3\u5438\u9644\u548c\u76f8\u90bb\u6c22\u6c27\u5316\u7269\u5438\u9644\u5f15\u8d77\u7684CO\u6c27\u5316\uff0c\u63d0\u9ad8\u4e86\u6240\u9700C1\u9014\u5f84\u7684\u6cd5\u62c9\u7b2c\u6548\u7387\u3002<\/p>\n \u6b64\u5916\uff0c\u672c\u6587\u7684\u7814\u7a76\u7ed3\u679c\u8868\u660e\uff0c\u50ac\u5316\u5242\u4f18\u5f02\u7684\u50ac\u5316\u6027\u80fd\u4e3b\u8981\u5f52\u56e0\u4e8e\u591a\u5b54\u7535\u6781\u4e2d\u6eb6\u6db2\u4e2dOH–<\/sup>\u7684\u8d28\u91cf\u8f6c\u79fb\u51cf\u5c11\uff0c\u8fd9\u610f\u5473\u7740\u5c40\u90e8\u9178\u6027\u73af\u5883\u5177\u6709\u66f4\u5e73\u8861\u7684OHads<\/sub>\u8986\u76d6\u8303\u56f4\u548c\u66f4\u591a\u53ef\u7528\u7684\u6d3b\u6027\u4f4d\u70b9\uff0c\u53ef\u7528\u4e8e\u8fde\u7eed\u7684C-C\u952e\u65ad\u88c2\u3002\u8be6\u7ec6\u7684\u4ea7\u7269\u5206\u6790\u8bc1\u5b9e\uff0c\u7eb3\u7c73\u7ea6\u675f\u4fc3\u8fdb\u4e86\u4e59\u919b\u4e2d\u95f4\u4f53\u7684\u8fdb\u4e00\u6b65\u6c27\u5316\u3002\u603b\u4e4b\uff0c\u5728\u8fd9\u9879\u5de5\u4f5c\u4e2d\u89c2\u5bdf\u5230\u7684\u76f8\u5173\u6027\u5f3a\u8c03\u4e86\u7535\u6781\u7ed3\u6784\u8bbe\u8ba1\u5728\u8c03\u6574\u7535\u5316\u5b66\u53cd\u5e94\u7ed3\u679c\u65b9\u9762\u7684\u524d\u666f\uff0c\u7279\u522b\u662f\u901a\u8fc7\u66f4\u597d\u5730\u63a7\u5236\u8d28\u91cf\u8f6c\u79fb\u548c\u4e0e\u7535\u89e3\u8d28\u6027\u8d28\u89e3\u8026\u7684\u5c40\u90e8\u53cd\u5e94\u73af\u5883\u3002<\/p>\n Confinement Effects of Hollow Structured Pt-Rh Electrocatalysts toward Complete Ethanol Electrooxidation,\u00a0ACS Nano<\/em><\/strong>,\u00a02023<\/strong>, DOI: 10.1021\/acsnano.3c05334.<\/p>\n https:\/\/doi.org\/10.1021\/acsnano.3c05334.<\/p>\n","protected":false},"excerpt":{"rendered":" \u76f4\u63a5\u4e59\u9187\u71c3\u6599\u7535\u6c60(DEFCs)\u5728\u79fb\u52a8\u7535\u6e90\u4e2d\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u56e0\u4e3a\u4e59\u9187\u7684\u80fd\u91cf(8.0 kWh kg-1)\u6bd4\u538b\u7f29\u6c22\u6c14 […]<\/p>\n","protected":false},"author":326,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"class_list":["post-48708","post","type-post","status-publish","format-standard","hentry","category-tuijianyuedu"],"_links":{"self":[{"href":"http:\/\/www.chemhui.com\/wp-json\/wp\/v2\/posts\/48708","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.chemhui.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.chemhui.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.chemhui.com\/wp-json\/wp\/v2\/users\/326"}],"replies":[{"embeddable":true,"href":"http:\/\/www.chemhui.com\/wp-json\/wp\/v2\/comments?post=48708"}],"version-history":[{"count":1,"href":"http:\/\/www.chemhui.com\/wp-json\/wp\/v2\/posts\/48708\/revisions"}],"predecessor-version":[{"id":48709,"href":"http:\/\/www.chemhui.com\/wp-json\/wp\/v2\/posts\/48708\/revisions\/48709"}],"wp:attachment":[{"href":"http:\/\/www.chemhui.com\/wp-json\/wp\/v2\/media?parent=48708"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.chemhui.com\/wp-json\/wp\/v2\/categories?post=48708"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.chemhui.com\/wp-json\/wp\/v2\/tags?post=48708"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}<\/p>\n
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