{"id":97490,"date":"2017-08-24T06:30:28","date_gmt":"2017-08-23T22:30:28","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=97490"},"modified":"2017-08-22T09:57:37","modified_gmt":"2017-08-22T01:57:37","slug":"%e6%9d%a8%e5%9f%b9%e4%b8%9cj-am-chem-soc-%ef%bc%9a%e8%8f%b1%e5%bd%a2%e5%8d%81%e4%ba%8c%e9%9d%a2%e4%bd%93pt-ni%e7%ba%b3%e7%b1%b3%e6%a1%86%e6%9e%b6%e7%94%b5%e5%82%ac%e5%8c%96%e5%89%82%e7%9a%84","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=97490","title":{"rendered":"\u6768\u57f9\u4e1cJ. Am. Chem. Soc.\uff1a\u83f1\u5f62\u5341\u4e8c\u9762\u4f53Pt-Ni\u7eb3\u7c73\u6846\u67b6\u7535\u50ac\u5316\u5242\u7684\u7ed3\u6784\u63a7\u5236"},"content":{"rendered":"

\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n

\u94c2(Pt)-\u57fa\u50ac\u5316\u5242\u662f\u8d28\u5b50\u4ea4\u6362\u819c\u71c3\u6599\u7535\u6c60(PEMFC)\u9634\u6781\u6c27\u8fd8\u539f\u53cd\u5e94(ORR)\u6700\u5e38\u4f7f\u7528\u7684\u7535\u50ac\u5316\u5242\u3002\u7136\u800cPt-\u57fa\u50ac\u5316\u5242\u6210\u672c\u76f8\u5bf9\u8f83\u9ad8\uff0cORR\u50ac\u5316\u6d3b\u6027\u4ecd\u6709\u5f85\u8fdb\u4e00\u6b65\u63d0\u9ad8\u3002\u4e3a\u4e86\u89e3\u51b3\u4e0a\u8ff0\u95ee\u9898\uff0c\u7814\u7a76\u4eba\u5458\u63d0\u51fa\u91c7\u7528\u6210\u672c\u76f8\u5bf9\u8f83\u4f4e\u7684\u8fc7\u6e21\u91d1\u5c5eM\u4e0ePt\u8fdb\u884c\u5408\u91d1\u5316\u5904\u7406\uff0c\u5728\u539f\u5b50\u7ea7\u548c\u7eb3\u7c73\u7ea7\u4f18\u5316\u5143\u7d20\u7684\u7a7a\u95f4\u5206\u5e03\uff0c\u5f97\u5230\u6027\u80fd\u4f18\u5f02\u7684Pt-M\u5408\u91d1\u7eb3\u7c73\u7535\u50ac\u5316\u5242\u3002\u8fd1\u671f\u7684\u7814\u7a76\u53d1\u73b0\uff1a\u7cbe\u786e\u63a7\u5236\u5408\u6210\u673a\u7406\u53ef\u4ee5\u5236\u5907\u7279\u5b9a\u5143\u7d20\u5404\u5411\u5f02\u6027\u5206\u5e03\u7684\u53cc\u91d1\u5c5e\u7eb3\u7c73\u9897\u7c92\uff1bPt-M\u83f1\u5f62\u5341\u4e8c\u9762\u4f53\u4e2d\u5c06\u5bccM\u7684\u5185\u6838\u90e8\u5206\u8150\u8680\u540e\uff0c\u5f97\u5230\u5bcc\u542bPt\u7684\u8fb9\u7f18\u7684\u4e2d\u7a7aPt3<\/sub>M\u7eb3\u7c73\u6846\u67b6\uff1bPt3<\/sub>M\u7eb3\u7c73\u6846\u67b6\u5177\u5907\u4f18\u5f02\u7684ORR\u50ac\u5316\u6d3b\u6027\u3002<\/p>\n

\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n

\u8fd1\u65e5\uff0c\u52a0\u5dde\u5927\u5b66\u4f2f\u514b\u5229\u5206\u6821\u7684\u6768\u57f9\u4e1c\u6559\u6388\u548c\u7f8e\u56fd\u963f\u8d21\u56fd\u5bb6\u5b9e\u9a8c\u5ba4<\/strong>Vojislav R. Stamenkovic <\/strong>\u6559\u6388<\/strong>(<\/strong>\u5171\u540c\u901a\u8baf<\/strong>)<\/strong>\u7b49<\/strong>\u5728Journal of the American Chemical Society<\/strong>\u4e0a\u53d1\u8868\u4e86\u9898\u4e3a\u201cControl of Architecture in Rhombic Dodecahedral Pt\u2212Ni Nanoframe Electrocatalysts<\/strong>\u201d\u7684\u7814\u7a76\u8bba\u6587\uff0c\u62a5\u9053\u4e86\u83f1\u5f62\u5341\u4e8c\u9762\u4f53Pt-Ni\u7eb3\u7c73\u6846\u67b6\u7535\u50ac\u5316\u5242\u7ed3\u6784\u63a7\u5236\u7684\u6700\u65b0\u8fdb\u5c55\u3002\u7814\u7a76\u4eba\u5458\u901a\u8fc7\u8c03\u8282\u524d\u9a71\u4f53\u7684\u6d53\u5ea6\u548c\u914d\u6bd4\uff0c\u8c03\u63a7\u524d\u9a71\u4f53\u7684\u5316\u5b66\u52bf\uff0c\u5b9e\u73b0\u4e86\u56fa\u6001\u83f1\u5f62\u5341\u4e8c\u9762\u4f53\u4e2d\u5143\u7d20\u4e09\u7ef4\u5404\u5411\u5f02\u6027\u5206\u5e03\u7684\u8c03\u63a7\u3002\u7814\u7a76\u53d1\u73b0\uff1a\u8c03\u8282Pt\u548cNi\u524d\u9a71\u4f53\u7684\u914d\u6bd4\u5236\u5907\u5f97\u5230\u4e86\u5168\u4e2d\u7a7a\u7684\u7eb3\u7c73\u6846\u67b6(H-NF)\u548c\u534a\u5f00\u653e\u7ed3\u6784\u7684\u7eb3\u7c73\u6846\u67b6(E-NF)\uff1b\u5176\u4e2dE-NF\u7535\u50ac\u5316\u5242\u7684ORR\u6d3b\u6027\u548c\u6bd4\u8d28\u91cf\u6d3b\u6027\u5206\u522b\u6bd4Pt\/C\u9ad8\u51fa\u7ea610\u500d\u548c6\u500d\uff1bE-NF\u7684\u6bd4\u8d28\u91cf\u6d3b\u6027\u7ea6\u4e3aH-NF\u7684\u4e24\u500d\uff1bE-NF\u4f18\u5f02\u7684\u50ac\u5316\u6d3b\u6027\u4e00\u65b9\u9762\u6e90\u4e8e\u8fd1\u8868\u9762\u533a\u57df\u76f8\u5bf9\u8f83\u9ad8\u7684Ni\u542b\u91cf\uff0c\u53e6\u4e00\u65b9\u9762\u6e90\u4e8e\u5176\u7eb3\u7c73\u6846\u67b6\u5185\u4e8c\u7ef4\u7247\u72b6\u7ed3\u6784\uff0c\u6709\u6548\u589e\u5927\u4e86Pt\u6d3b\u6027\u4f4d\u70b9\u6570\u91cf\u3002\u8fd9\u79cd\u901a\u8fc7\u7ed3\u6784\u8bbe\u8ba1\u8c03\u63a7\u7535\u5316\u5b66\u6027\u80fd\u7684\u7b56\u7565\u4e3a\u5176\u5b83\u53cc\u91d1\u5c5e\u7eb3\u7c73\u6676\u50ac\u5316\u5242\u7684\u7814\u7a76\u63d0\u4f9b\u4e86\u4e00\u5b9a\u7684\u601d\u8def\u53c2\u8003\u3002<\/p>\n

\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n

\u56fe<\/strong>1. <\/strong>\u7eb3\u7c73\u6846\u67b6\u7ed3\u6784\u7684\u5408\u6210\u8def\u5f84\u793a\u610f\u56fe<\/strong><\/p>\n

\"\"<\/p>\n

(a) \u4e2d\u7a7a\u7eb3\u7c73\u6846\u67b6(H-NF)\u7684\u5408\u6210\u8def\u5f84\u793a\u610f\u56fe\uff1b<\/p>\n

(b) \u534a\u5f00\u653e\u7eb3\u7c73\u6846\u67b6(E-NF)\u7684\u5408\u6210\u8def\u5f84\u793a\u610f\u56fe\uff1b<\/p>\n

\u5176\u4e2d\u6a59\u8272\u8868\u793a\u5bccNi\u533a\u57df\uff0c\u7070\u8272\u4ee3\u8868\u5bccPt\u533a\u57df\u3002<\/p>\n

\u56fe<\/strong>2. <\/strong>\u7eb3\u7c73\u6846\u67b6\u7684\u7535\u5b50\u663e\u5fae\u955c\u56fe\u7247<\/strong><\/p>\n

\"\"<\/p>\n

(a)-(b) H-NF\u7684TEM\u548cSEM\u56fe\u7247\uff0c\u6bd4\u4f8b\u5c3a\uff1a20 nm\uff1b<\/p>\n

(d)-(e) E-NF\u7684TEM\u548cSEM\u56fe\u7247\uff0c\u6bd4\u4f8b\u5c3a\uff1a20 nm\uff1b<\/p>\n

(c), (f) H-NF\uff0cE-NF (111)\u6676\u5411\u7684STEM-HAADF\u548cSTEM-EDS mapping\u56fe\u7247\uff0c\u6bd4\u4f8b\u5c3a\uff1a20 nm\uff1b<\/p>\n

\u56fe<\/strong>3. E-NF<\/strong>\u7684\u7ed3\u6784\u6a21\u578b\u548c<\/strong>HR-TEM<\/strong>\u56fe\u7247<\/strong><\/p>\n

\"\"<\/p>\n

(a)E-NF\u7ed3\u6784\u4e2d3\u4e2a\u4e0d\u540c\u6676\u5411\u7684\u6a21\u578b\uff0c\u5176\u4e2d\u7ea2\u8272\u8868\u793aA\u578b\u5206\u652f\uff0c\u9ed1\u8272\u8868\u793aB\u578b\u5206\u652f\uff1b<\/p>\n

(b) E-NF(110)\u6676\u5411\u7684HRTEM\u56fe\u50cf\u3002\u5176\u4e2d\u5de6\u4e0a\u89d2\u63d2\u56fe\u662f\u76f8\u540c\u6676\u5411\u7684\u6a21\u578b\uff0c\u5de6\u4e0b\u65b9\u63d2\u56fe\u662f\u7ea2\u8272\u6846\u4e2d\u56fe\u50cf\u7684FFT\u56fe\u50cf\uff0c\u6bd4\u4f8b\u5c3a\uff1a5 nm\uff1b<\/p>\n

(c) \u56fe3-(b)\u4e2d\u7eff\u8272\u6846\u7684\u653e\u5927HRTEM\u56fe\u50cf\uff0cE-NF\u7684\u9ad8\u503e\u89d2STEM\u65ad\u5c42\u6210\u50cf\uff0c\u6bd4\u4f8b\u5c3a\uff1a5 nm\u3002<\/p>\n

\u56fe<\/strong>4. <\/strong>\u7535\u50ac\u5316\u5242\u7684\u7535\u5316\u5b66\u66f2\u7ebf\u548c\u50ac\u5316\u6d3b\u6027\u5bf9\u6bd4\u56fe<\/strong><\/p>\n

\"\"<\/p>\n

(a)\u5ba4\u6e29\u4e0bAr-\u9971\u548c1 M HClO4<\/sub>\u6eb6\u6db2\u4e2d\u626b\u63cf\u901f\u7387\u4e3a50 mV\/s\u65f6\u4e0d\u540c\u50ac\u5316\u5242\u7684CV\u66f2\u7ebf\uff1b<\/p>\n

(b)\u5ba4\u6e29\u4e0bO2<\/sub>-\u9971\u548c1 M HClO4<\/sub>\u6eb6\u6db2\u4e2d\u626b\u63cf\u901f\u7387\u4e3a20 mV\/s\u3001\u8f6c\u901f\u4e3a1, 600 rpm\u65f6\u7684ORR\u6781\u5316\u66f2\u7ebf\uff1b<\/p>\n

(c)\u7535\u538b\u4e3a95 V vs RHE\u65f6\uff0cPt\/C, H-NF, E-NF\u4ee5\u53ca\u5e26Pt\u8868\u5c42\u7684Pt3<\/sub>Ni NF\u7684\u6bd4\u50ac\u5316\u6d3b\u6027\u5bf9\u6bd4\u56fe\uff1b<\/p>\n

(d)\u7535\u538b\u4e3a95 V vs RHE\u65f6\uff0cPt\/C, H-NF, E-NF\u4ee5\u53ca\u5e26Pt\u8868\u5c42\u7684Pt3<\/sub>Ni NF\u7684\u8d28\u91cf\u6d3b\u6027\u5bf9\u6bd4\u56fe\u3002<\/p>\n

\u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n

\u672c\u6587\u901a\u8fc7\u8c03\u8282\u524d\u9a71\u4f53\u7684\u6d53\u5ea6\u548c\u914d\u6bd4\uff0c\u8c03\u63a7\u524d\u9a71\u4f53\u7684\u5316\u5b66\u52bf\uff0c\u5b9e\u73b0\u4e86\u56fa\u6001\u83f1\u5f62\u5341\u4e8c\u9762\u4f53\u4e2d\u5143\u7d20\u4e09\u7ef4\u5404\u5411\u5f02\u6027\u5206\u5e03\u7684\u8c03\u63a7\uff0c\u5206\u522b\u5f97\u5230\u4e86\u5fae\u89c2\u7ed3\u6784\u548c\u50ac\u5316\u6027\u80fd\u5dee\u522b\u8f83\u5927\u7684\u5168\u4e2d\u7a7a\u7ed3\u6784\u7684\u7eb3\u7c73\u6846\u67b6(H-NF)\u548c\u534a\u5f00\u653e\u7ed3\u6784\u7684\u7eb3\u7c73\u6846\u67b6(E-NF)\u3002\u7814\u7a76\u53d1\u73b0\uff1aE-NF\u7684\u4f18\u4e8eH-NF\u548c\u4f20\u7edf\u7684Pt\/C\u50ac\u5316\u5242\uff1b\u8fd1\u8868\u9762\u533a\u57df\u76f8\u5bf9\u8f83\u9ad8\u7684Ni\u542b\u91cf\u4ee5\u53ca\u7eb3\u7c73\u6846\u67b6\u5185\u4e8c\u7ef4\u7eb3\u7c73\u7247\u7ed3\u6784\u6709\u6548\u589e\u5f3a\u4e86E-NF\u7684ORR\u50ac\u5316\u6d3b\u6027\u3002\u8fd9\u79cd\u901a\u8fc7\u7ed3\u6784\u8bbe\u8ba1\u6765\u8c03\u63a7\u6750\u6599\u7535\u5316\u5b66\u6027\u80fd\u7684\u7b56\u7565\u53ef\u9002\u7528\u4e8e\u5176\u5b83\u53cc\u91d1\u5c5e\u7eb3\u7c73\u6676\u50ac\u5316\u5242\u7684\u5236\u5907\u4e0e\u7814\u7a76\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1a<\/strong>Control of Architecture in Rhombic Dodecahedral Pt\u2013Ni Nanoframe Electrocatalysts<\/a>(J. Am. Chem. Soc., 2017, DOI: 10.1021\/jacs.7b05584)<\/p>\n

\u672c\u6587\u7531\u6750\u6599\u4eba\u7f16\u8f91\u90e8\u5f20\u6770\u7f16\u8bd1\uff0c\u9ec4\u8d85\u5ba1\u6838\uff0c\u70b9\u6211\u52a0\u5165\u6750\u6599\u4eba\u7f16\u8f91\u90e8<\/a>\u3002<\/u><\/p>\n

\u6750\u6599\u6d4b\u8bd5\uff0c\u6570\u636e\u5206\u6790\uff0c\u4e0a\u6d4b\u8bd5\u8c37<\/a>\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"

\u3010\u5f15\u8a00\u3011 \u94c2(Pt)-\u57fa\u50ac\u5316\u5242\u662f\u8d28\u5b50\u4ea4\u6362\u819c\u71c3\u6599\u7535\u6c60(PEMFC)\u9634\u6781\u6c27\u8fd8\u539f\u53cd\u5e94(ORR)\u6700\u5e38\u4f7f\u7528\u7684\u7535\u50ac\u5316\u5242\u3002\u7136\u800cPt-\u57fa\u50ac\u5316\u5242\u6210\u672c\u76f8\u5bf9\u8f83\u9ad8\uff0cORR\u50ac\u5316\u6d3b\u6027\u4ecd\u6709\u5f85…<\/p>\n","protected":false},"author":230,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[215,2],"tags":[],"class_list":["post-97490","post","type-post","status-publish","format-standard","hentry","category-jiedu","category-keji"],"_links":{"self":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/97490"}],"collection":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/users\/230"}],"replies":[{"embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=97490"}],"version-history":[{"count":4,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/97490\/revisions"}],"predecessor-version":[{"id":97762,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/97490\/revisions\/97762"}],"wp:attachment":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=97490"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=97490"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=97490"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}