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M H<sub>2<\/sub>SO<sub>4<\/sub>\u4e2d\u53ea\u670919 mV\u7684\u8fc7\u7535\u4f4d\uff0c\u57281.0 M NaOH\u4e2d\u53ea\u670946 mV\u7684\u8fc7\u7535\u4f4d\uff0c\u5728\u5bbdpH\u7535\u89e3\u8d28\u4e2d\u5177\u6709\u957f\u671f\u7684\u7a33\u5b9a\u6027\u3002\u8be5\u6210\u679c\u4ee5\u9898\u4e3a<strong><b>\u201c<\/b><\/strong><strong><b>Uncovering near-free platinum single-atom dynamics during electrochemical hydrogen evolution reaction<\/b><\/strong><strong><b>\u201d<\/b><\/strong>\u53d1\u8868\u5728\u4e86<strong><b>Nature Communications<\/b><\/strong>\u4e0a\u3002<\/p>\n<p><strong><b>\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/b><\/strong><\/p>\n<p><strong><b>\u56fe1 <\/b><\/strong><strong><b>Pt<\/b><\/strong><strong><sub><b>1<\/b><\/sub><\/strong><strong><b>\/<\/b><\/strong><strong><b>N-C<\/b><\/strong><strong><b>\u7684\u5f62\u8c8c\u8868\u5f81\u548c<\/b><\/strong><strong><b>XANES\u5149\u8c31<\/b><\/strong><strong><b>\u8868\u5f81<\/b><\/strong><strong><b><img loading=\"lazy\" decoding=\"async\" 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srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2020\/02\/2-40.jpg 600w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2020\/02\/2-40-300x149.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>a\uff09\u2206XANES\u5149\u8c31\u4e2dPt\u7684\u62df\u5408\u5e73\u5747\u5f62\u5f0fa\uff09d\u5e26\u5b54\u6570\u548cb\uff09Pt\u7684\u6c27\u5316\u6001\uff0c\u5e76\u7528\u8ba1\u7b97\u51fa\u7684Pt<sub>1<\/sub>-C<sub>3<\/sub>N<sub>1<\/sub>\u3001Pt<sub>1<\/sub>-C<sub>2<\/sub>N<sub>2<\/sub>\u548cPt<sub>1<\/sub>-C<sub>1<\/sub>N<sub>3<\/sub>\u6a21\u578b\u8868\u793a\u3002Pt<sub>1<\/sub>-C<sub>3<\/sub>N<sub>1<\/sub>\u7684\u6c27\u5316\u6001\u4e0e\u975e\u539f\u4f4d\u6837\u54c1\u7684\u6c27\u5316\u6001\u6700\u4e3a\u63a5\u8fd1\u3002<\/p>\n<p>c\uff09\u76f8\u5e94\u7684\u56fe1e\u7684k<sup>2<\/sup>\u52a0\u6743\u5085\u91cc\u53f6\u53d8\u6362\uff08FT\uff09\u5149\u8c31\u3002<\/p>\n<p>d\uff09EXAFS\u5149\u8c31\u5728\u975e\u539f\u4f4d\u3001+0.15 V\u548c-0.07 V\u6761\u4ef6\u4e0b\u7684\u7b2c\u4e00\u58f3\u5c42\u62df\u5408\u3002<\/p>\n<p><strong><b>\u56fe3 <\/b><\/strong><strong><b>Pt<\/b><\/strong><strong><sub><b>1<\/b><\/sub><\/strong><strong><b>-C<\/b><\/strong><strong><sub><b>3<\/b><\/sub><\/strong><strong><b>N<\/b><\/strong><strong><sub><b>1<\/b><\/sub><\/strong><strong><b>\u3001<\/b><\/strong><strong><b>Pt<\/b><\/strong><strong><sub><b>1<\/b><\/sub><\/strong><strong><b>-C<\/b><\/strong><strong><sub><b>2<\/b><\/sub><\/strong><strong><b>\u548cPt<\/b><\/strong><strong><sub><b>1<\/b><\/sub><\/strong><strong><b>-C<\/b><\/strong><strong><sub><b>1<\/b><\/sub><\/strong><strong><b>N<\/b><\/strong><strong><sub><b>1<\/b><\/sub><\/strong><strong><b>\u7684\u7406\u8bba\u8ba1\u7b97<\/b><\/strong><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-196895\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2020\/02\/3-39.jpg\" alt=\"\" width=\"600\" height=\"391\" srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2020\/02\/3-39.jpg 600w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2020\/02\/3-39-300x196.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>a\uff09Pt<sub>1<\/sub>-C<sub>3<\/sub>N<sub>1<\/sub>\u548c\u4e24\u4e2aPt<sub>1<\/sub>-C<sub>2<\/sub>\u548c\u4e24\u4e2aPt<sub>1<\/sub>-C<sub>1<\/sub>N<sub>1<\/sub>\u5206\u5b50\u7684\u8ba1\u7b97\u6a21\u578b\u3002H\uff1a\u767d\u8272\uff1bC\uff1a\u7070\u8272\uff1b N\uff1a\u84dd\u8272\uff1bPt\uff1a\u7d2b\u8272\u3002<\/p>\n<p>b\uff09\u8ba1\u7b97H<sub>2<\/sub>O\u548cH\u5728Pt<sub>1<\/sub>-C<sub>3<\/sub>N<sub>1<\/sub>\u3001Pt<sub>1<\/sub>-C<sub>2<\/sub>\u548cPt<sub>1<\/sub>-C<sub>1<\/sub>N<sub>1<\/sub>\u8868\u9762\u7684\u5438\u9644\u80fd\u3002<\/p>\n<p>c\uff09\u8ba1\u7b97\uff0c\u4ece\u5de6\u5230\u53f3\u5206\u522b\u8ba1\u7b97\u5e72\u51c0\u8868\u9762Pt d\u8f68\u9053\u7684PDOS\u3001Pt\u4f4d\u70b9\u5438\u9644\u6c22\u7684H 1s\u548c\u5438\u9644\u6c22\u7684Pt\u4f4d\u70b9\u7684Pt d\uff08\u8868\u793a\u4e3a* Pt d\u8f68\u9053\uff09\u3002\u7070\u8272\u3001\u7ea2\u8272\u548c\u84dd\u8272\u8f6e\u5ed3\u5206\u522b\u4ee3\u8868Pt<sub>1<\/sub>-C<sub>3<\/sub>N<sub>1<\/sub>\u3001Pt<sub>1<\/sub>-C<sub>2<\/sub>-1\u548cPt<sub>1<\/sub>-C<sub>2<\/sub>-2\u8868\u9762\u3002\u7bad\u5934\u6307\u793a\u4e86H1s-Pt 5d\u53cd\u952e\u7684DOS\u5cf0\u3002\u6ce8\u610f\uff0cPt<sub>1<\/sub>-C<sub>2<\/sub>-2\u7684\u9661\u5ced\u5cf0~1 eV\u4ee3\u8868\u6210\u952e\u72b6\u6001\uff0c\u800c\u4e0d\u662f\u53cd\u952e\u72b6\u6001\uff0c\u56e0\u4e3a\u5b83\u5bf9\u5e94\u4e8e* Pt d PDOS\u4e2d\u7a81\u51fa\u7684Pt d\u5e26\u3002<\/p>\n<p>d\uff09Pt\u548cH\u4e4b\u95f4\u76f8\u4e92\u4f5c\u7528\u7684DOS\u793a\u610f\u56fe\uff0cH 1s\u7684\u72b6\u6001\u5206\u4e3a\u952e\u5408\u6001\u548c\u53cd\u952e\u6001\u3002\u968f\u7740\u56db\u5750\u6807Pt\u6f14\u53d8\u4e3a\u4e8c\u5750\u6807\uff0c\u76f8\u5e94\u7684\u53cd\u952e\u6001\u4ee5\u8f83\u4f4e\u7684\u5360\u7528\u7387\u5347\u81f3\u8f83\u9ad8\u7684\u80fd\u91cf\u3002<\/p>\n<p><strong><b>\u56fe4 <\/b><\/strong><strong><b>Pt<\/b><\/strong><strong><sub><b>1<\/b><\/sub><\/strong><strong><b>\/<\/b><\/strong><strong><b>N-C<\/b><\/strong><strong><b>\u7684\u7535\u5316\u5b66\u6d4b\u8bd5<\/b><\/strong><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-196896\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2020\/02\/4-37.jpg\" alt=\"\" width=\"600\" height=\"483\" srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2020\/02\/4-37.jpg 600w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2020\/02\/4-37-300x242.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>a\uff09Pt<sub>1<\/sub>\/N-C\u3001Pt\/C\u548cN-C\u6846\u67b6\u7684LSV\u66f2\u7ebf\u3002<\/p>\n<p>b\uff09Pt<sub>1<\/sub>\/N-C\u548cPt\/C\u7535\u50ac\u5316\u5242\u7684Tafel\u56fe\u3002<\/p>\n<p>c\uff09Pt<sub>1<\/sub>\/N-C\u7684\u8010\u4e45\u6027\u8bd5\u9a8c\u3002<\/p>\n<p>d\uff09Pt<sub>1<\/sub>\/N-C\u548cPt\/C\u7535\u50ac\u5316\u5242\u7684TOF\u56fe\u3002<\/p>\n<p>\u3010<strong><b>\u5c0f\u7ed3<\/b><\/strong>\u3011<\/p>\n<p>\u5728\u539f\u4f4dXAFS\u57fa\u7840\u4e0a\uff0c\u56e2\u961f\u786e\u5b9a\u4e86\u5355\u539f\u5b50Pt\u4f4d\u70b9\u5728\u7535\u5316\u5b66HER\u4e0b\u7684\u539f\u5b50\u548c\u7535\u5b50\u7ed3\u6784\u6f14\u5316\u3002\u7814\u7a76\u53d1\u73b0\uff0cPt\u539f\u5b50\u8d8b\u4e8e\u63a5\u8fd1\u81ea\u7531\u6001\uff0c\u7c7b\u4f3c\u4e8e\u81ea\u7531\u91d1\u5c5e\u539f\u5b50\uff0c\u5373Pt\u4e0eN-C\u8f7d\u4f53\u4e4b\u95f4\u7684\u76f8\u4e92\u4f5c\u7528\u548c\u7535\u8377\u8f6c\u79fb\u51cf\u5f31\u3002\u7406\u8bba\u6a21\u62df\u8868\u660e\uff0c\u8fd1\u81ea\u7531\u6001\u7684\u5355\u539f\u5b50Pt\u4e0e\u53cd\u5e94\u7269\u5177\u6709\u826f\u597d\u7684\u6210\u952e\u80fd\uff0c\u4ece\u800c\u5177\u6709\u4f18\u5f02\u7684HER\u6d3b\u6027\u3002\u7814\u7a76\u5f3a\u8c03\u4e86\u521b\u9020\u66f4\u591a\u7684\u81ea\u7531\u5355\u91d1\u5c5e\u539f\u5b50\u540c\u65f6\u4fdd\u6301\u7a33\u5b9a\u5bf9\u4fc3\u8fdb\u7535\u5316\u5b66\u8fd8\u539f\u53cd\u5e94\u7684\u91cd\u8981\u6027\u3002\u8fd9\u4e9b\u53d1\u73b0\u4e5f\u4e3a\u5f00\u53d1\u9ad8\u6027\u80fd\u7684\u5355\u539f\u5b50\u7535\u50ac\u5316\u5242\uff0c\u8c03\u6574\u5355\u539f\u5b50\u6d3b\u6027\u4f4d\u70b9\u7684\u914d\u4f4d\u73af\u5883\u63d0\u4f9b\u4e86\u65b0\u7684\u601d\u8def\u3002<\/p>\n<p><strong><b>\u6587\u732e\u94fe\u63a5\uff1a<\/b><\/strong><a href=\"https:\/\/www.nature.com\/articles\/s41467-020-14848-2.pdf\" target=\"_blank\" rel=\"noopener\"><u>Uncovering near-free platinum single-atom dynamics during electrochemical hydrogen evolution reaction<\/u><\/a>\uff08Nat. Commun.\uff0c 2020\uff0cDOI:10.1038\/s41467-020-14848-2\uff09<\/p>\n<p><strong>\u3010<\/strong><strong><b>\u76f8\u5173\u5de5\u4f5c\u4ecb\u7ecd<\/b><\/strong><strong>\u3011<\/strong><\/p>\n<p>\u63a2\u6d4b\u50ac\u5316\u5242\u5728\u670d\u5f79\u72b6\u6001\u4e0b\u539f\u5b50\u5c3a\u5ea6\u7ed3\u6784\u7684\u52a8\u6001\u53d8\u5316\u8fc7\u7a0b\u5bf9\u4e8e\u50ac\u5316\u5242\u7684\u7406\u6027\u8bbe\u8ba1\u5177\u6709\u91cd\u8981\u610f\u4e49\u3002\u56e2\u961f\u8fd1\u5e74\u6765\u4e00\u76f4\u57fa\u4e8e\u540c\u6b65\u8f90\u5c04\u5927\u79d1\u5b66\u88c5\u7f6e\uff0c\u53d1\u5c55\u539f\u4f4d\u540c\u6b65\u8f90\u5c04\u8c31\u5b66\u5b9e\u9a8c\u6280\u672f\uff0c\u56f4\u7ed5\u80fd\u6e90\u6750\u6599\u5728\u5de5\u4f5c\u72b6\u6001\u4e0b\u7684\u52a8\u6001\u7ed3\u6784\u6f14\u5316\u5f00\u5c55\u4e86\u7cfb\u7edf\u7684\u7814\u7a76\uff0c\u7cbe\u786e\u9274\u522b\u51fa\u94b4\u57fa\u50ac\u5316\u5242\u5728\u7535\u50ac\u5316\u6790\u6c22\u53cd\u5e94\u8fc7\u7a0b\u4e2d\u6d3b\u6027\u4f4d\u70b9\u7684\u771f\u5b9e\u7ed3\u6784\u548c\u52a8\u6001\u6f14\u5316\u8fc7\u7a0b\uff0c\u5373\u4ece\u521d\u59cb\u7684\u201cCo<sub>1<\/sub>-N<sub>4<\/sub>\u201d\u6734\u7433\u7ed3\u6784\u8f6c\u53d8\u4e3a\u201cHO-Co<sub>1<\/sub>-N<sub>2<\/sub>\u201d\u771f\u5b9e\u6d3b\u6027\u4e2d\u5fc3\uff08Nature\u00a0Catalysis\u00a02, 134 (2019)\uff09\uff1b\u53d1\u5c55\u539f\u4f4d\u540c\u6b65\u8f90\u5c04\u5438\u6536\u8c31\u548c\u7ea2\u5916\u6280\u672f\uff0c\u9996\u6b21\u7cbe\u786e\u63a2\u6d4b\u5230\u948c\u57fa\u5355\u539f\u5b50\u50ac\u5316\u5242\u5728\u9178\u6027\u7535\u5316\u5b66\u6790\u6c27\u53cd\u5e94\u8fc7\u7a0b\u4e2d\u7684\u50ac\u5316\u6d3b\u6027\u4f4d\u70b9\u7684\u52a8\u6001\u53d8\u5316\u8fc7\u7a0b\uff0c\u5e76\u4f9d\u6b64\u8bbe\u8ba1\u51fa\u9ad8\u6d3b\u6027\u548c\u9ad8\u7a33\u5b9a\u6027\u7684\u9178\u6027OER\u50ac\u5316\u5242\uff08Nature\u00a0Communications 10, 4849 (2019)\uff09\u3002<\/p>\n<p>\u672c\u6587\u7531<strong><b>\u6728\u6587\u97ec<\/b><\/strong>\u7ffb\u8bd1\u7f16\u8f91\u3002<\/p>\n<p>\u6b22\u8fce\u5927\u5bb6\u5230\u6750\u6599\u4eba\u5ba3\u4f20\u79d1\u6280\u6210\u679c\u5e76\u5bf9\u6587\u732e\u8fdb\u884c\u6df1\u5165\u89e3\u8bfb\uff0c<a href=\"mailto:\u6295\u7a3f\u90ae\u7bb1tougao@cailiaoren.com\" target=\"_blank\" rel=\"noopener\"><u>\u6295\u7a3f\u90ae\u7bb1tougao@cailiaoren.com<\/u><\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3010\u5f15\u8a00\u3011 \u539f\u5b50\u7ea7\u50ac\u5316\u5242\u7684\u5408\u7406\u8bbe\u8ba1\u548c\u53ef\u63a7\u5408\u6210\u7684\u8fdb\u5c55\uff0c\u4f7f\u50ac\u5316\u57fa\u7840\u7814\u7a76\u548c\u5e94\u7528\u7814\u7a76\u5f97\u5230\u4e86\u84ec\u52c3\u53d1\u5c55\u3002\u8fd1\u5e74\u6765\uff0c\u5355\u539f\u5b50\u50ac\u5316\u5242\u4ee5\u5176\u6700\u5927\u7684\u539f\u5b50\u6548\u7387\u3001\u72ec\u7279\u7684\u539f\u5b50\u7ed3\u6784\u548c\u7535\u5b50\u6027\u8d28\uff0c\u5305\u542b&#8230;<\/p>\n","protected":false},"author":2109,"featured_media":196893,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[215],"tags":[116,2923,2880,3503],"class_list":["post-196892","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-jiedu","tag-catalyst","tag-2923","tag-2880","tag-3503"],"_links":{"self":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/196892"}],"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\/2109"}],"replies":[{"embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=196892"}],"version-history":[{"count":3,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/196892\/revisions"}],"predecessor-version":[{"id":196975,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/196892\/revisions\/196975"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/media\/196893"}],"wp:attachment":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=196892"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=196892"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=196892"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}