{"id":191141,"date":"2019-12-05T06:30:12","date_gmt":"2019-12-04T22:30:12","guid":{"rendered":"\/\/m.iemloyee.com\/?p=191141"},"modified":"2019-12-04T15:43:50","modified_gmt":"2019-12-04T07:43:50","slug":"%e3%80%90%e5%b7%b2%e6%a0%a1%e7%a8%bf%e3%80%91energy-environmental-science%ef%bc%9a%e5%8d%95%e5%8e%9f%e5%ad%90%e9%93%9c%e5%82%ac%e5%8c%96%e5%89%82%e5%a2%9e%e5%bc%ba%e6%b0%a7%e8%bf%98%e5%8e%9f","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=191141","title":{"rendered":"Energy & Environmental Science\uff1a\u5355\u539f\u5b50\u94dc\u50ac\u5316\u5242\u589e\u5f3a\u6c27\u8fd8\u539f\u53cd\u5e94"},"content":{"rendered":"
\u3010\u80cc\u666f\u3011<\/p>\n
\u6c27\u8fd8\u539f\u53cd\u5e94\uff08ORR\uff09\u4e2d\u50ac\u5316\u6d3b\u6027\u7684\u8c03\u8282\u5bf9\u91d1\u5c5e-\u7a7a\u6c14\u7535\u6c60\u548c\u5176\u4ed6\u6d89\u53ca\u6c27\u6c14\u7684\u80fd\u91cf\u8f6c\u6362\u88c5\u7f6e\u7684\u5f00\u53d1\u5f88\u91cd\u8981\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u63d0\u51fa\u4e86\u4e00\u79cd\u539f\u5b50\u754c\u9762\u7b56\u7565\u6765\u6784\u5efa\u5355\u539f\u5b50\u94dc\u50ac\u5316\u5242\uff08Cu-SA\/SNC\uff09\uff0c\u8be5\u50ac\u5316\u5242\u5728\u78b1\u6027\u4ecb\u8d28\u4e2d\u5177\u6709\u534a\u6ce2\u7535\u52bf\u4e3a0.893 V vs. RHE\u7684\u589e\u5f3a\u7684ORR\u6d3b\u6027\u3002\u6b64\u5916\uff0c\u57fa\u4e8e\u540c\u6b65\u8f90\u5c04\u7684X\u5c04\u7ebf\u5438\u6536\u7cbe\u7ec6\u7ed3\u6784\uff08XAFS\uff09\u7814\u7a76\u4ee5\u53ca\u5bc6\u5ea6\u6cdb\u51fd\u7406\u8bba\uff08DFT\uff09\u8ba1\u7b97\u8868\u660e\uff0c\u5b64\u7acb\u7684\u952e\u957f\u6536\u7f29\u7684\u4f4e\u4ef7Cu(+1)\u2013N4<\/sub>\u2013C8<\/sub>S2<\/sub>\u539f\u5b50\u754c\u9762\u90e8\u5206\u5728ORR\u8fc7\u7a0b\u4e2d\u5145\u5f53\u6d3b\u6027\u4f4d\u70b9\uff0c\u5e76\u4e14\u901a\u8fc7\u8c03\u6574\u4e2d\u95f4\u5438\u9644\u7684\u53cd\u5e94\u81ea\u7531\u80fd\uff0c\u539f\u5b50\u754c\u9762\u5904\u7684Cu\u4e0e\u8f7d\u4f53\u4e4b\u95f4\u7684\u534f\u540c\u673a\u5236\u5bf9\u4e8e\u63d0\u9ad8ORR\u6548\u7387\u8d77\u7740\u5173\u952e\u4f5c\u7528\u3002\u8be5\u539f\u5b50\u754c\u9762\u6982\u5ff5\u53ef\u4ee5\u4e3a\u5148\u8fdb\u7684\u6c27\u7535\u6781\u6750\u6599\u7684\u5408\u7406\u8bbe\u8ba1\u63d0\u4f9b\u65b0\u7684\u65b9\u6cd5\uff0c\u5e76\u4e3a\u63d0\u9ad8\u5176\u50ac\u5316\u6027\u80fd\u63d0\u4f9b\u65b0\u7684\u53ef\u80fd\u6027<\/p>\n \u3010\u6210\u679c\u7b80\u4ecb\u3011<\/p>\n \u8fd1\u671f\uff0c\u5317\u4eac\u7406\u5de5\u5927\u5b66\u9648\u6587\u661f\uff0c\u5f20\u52a0\u6d9b\u548c\u6e05\u534e\u5927\u5b66\u738b\u5b9a\u80dc\uff0c\u674e\u4e9a\u680b\u6559\u6388\u8bfe\u9898\u7ec4\u5408\u4f5c\u5728Energy & Environmental Science<\/strong>\u671f\u520a\u4e0a\u53d1\u8868\u9898\u4e3a\u201cAtomic interface effect of a single atom copper<\/strong><\/p>\n catalyst for enhanced oxygen reduction reactions<\/strong>\u201d<\/strong>\u7684\u7814\u7a76\u8bba\u6587\u3002\u7814\u7a76\u56e2\u961f\u63d0\u51fa\u4e86\u4e00\u79cd\u539f\u5b50\u754c\u9762\u7b56\u7565\u6765\u8bbe\u8ba1\u5355\u539f\u5b50\u94dc\u50ac\u5316\u5242\uff0c\u5176\u4e2d\u94dc\u539f\u5b50\u951a\u5b9a\u5728\u786b\u548c\u6c2e\u6539\u6027\u7684\u78b3\u8f7d\u4f53\u4e0a\uff08\u8868\u793a\u4e3aCu-SA\/SNC\uff09\u3002\u6240\u83b7\u5f97\u7684Cu-SA\/SNC\u5177\u6709\u589e\u5f3a\u7684ORR\u6027\u80fd\uff0c\u8fdc\u80dc\u4e8e\u5b83\u7684\u5176\u4ed6\u540c\u7c7b\u4ea7\u54c1\u3002\u5168\u9762\u7684X\u5c04\u7ebf\u5438\u6536\u8fd1\u8fb9\u7f18\u7ed3\u6784\uff08XANES\uff09\u548c\u6269\u5c55\u7684X\u5c04\u7ebf\u5438\u6536\u7cbe\u7ec6\u7ed3\u6784\uff08EXAFS\uff09\u5206\u6790\u4ee5\u53caDFT\u7814\u7a76\u8868\u660e\uff0c\u51fa\u8272\u7684ORR\u6d3b\u6027\u6e90\u81eaCu\u539f\u5b50\u4e0e\u8f7d\u4f53\u4e4b\u95f4\u539f\u5b50\u754c\u9762\u7684\u5f3a\u534f\u540c\u4f5c\u7528\uff0c\u5bfc\u81f4\u4e2d\u95f4\u4f53\u5438\u9644\u7684\u53cd\u5e94\u81ea\u7531\u80fd\u964d\u4f4e\u3002\u901a\u8fc7\u539f\u4f4d\u5b9e\u9a8c\uff0c\u6211\u4eec\u53d1\u73b0\u5728Cu-SA \/SNC\u539f\u5b50\u754c\u9762\u5904\uff0c\u952e\u5408\u6536\u7f29\u7684\u4f4e\u4ef7Cu (+1)-N4<\/sub>-C8<\/sub>S2<\/sub>\u7269\u79cd\u5728\u6c27\u8fd8\u539f\u8fc7\u7a0b\u4e2d\u8d77\u7740\u91cd\u8981\u7684\u4f5c\u7528\u3002<\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/p>\n \u56fe1. Cu-SA\/SNC\u548cORR\u6d3b\u6027\u7684\u5f62\u6001\u8868\u5f81<\/p>\n (a)-(b) Cu-SA \/ SNC\u7684TEM\u548cHAADF-STEM\u653e\u5927\u56fe\u50cf;<\/p>\n (c) \u6cbf(b)\u4e2d\u7684X – Y\u7ebf\u7684\u76f8\u5e94\u5f3a\u5ea6\u5206\u5e03\u56fe;<\/p>\n (d) Cu-SA\/SNC\uff0cCu-SA\/NC\uff0cSNC\uff0cNC\u548c20\uff05Pt\/C\u7684ORR\u6781\u5316\u66f2\u7ebf;<\/p>\n (e) \u6bd4\u8f83Cu-SA \/ SNC\u548c\u5bf9\u6bd4\u6837\u57280.85 V\u548cE1\/2<\/sub>\u65f6\u7684Jk<\/sub>;<\/p>\n (f) Cu-SA\/SNC\u548c\u57fa\u4e8ePt \/ C\u7684Zn-\u7a7a\u6c14\u7535\u6c60\u7684\u653e\u7535\u6781\u5316\u66f2\u7ebf\u548c\u76f8\u5e94\u7684\u529f\u7387\u5bc6\u5ea6\u56fe\u3002<\/p>\n \u56fe2. Cu-SA\/SNC\u7684\u5316\u5b66\u72b6\u6001\u548c\u539f\u5b50\u914d\u4f4d\u73af\u5883<\/p>\n (a)-(b) Cu-SA\/SNC\u548cCu-SA\/NC\u7684C K-edge\u548cN K-edge\u7684XANES\u5149\u8c31;<\/p>\n (c) Cu-SA\/SNC\u7684S L-edge\u7684XANES\u5149\u8c31;<\/p>\n (d) Cu-SA\/SNC\uff0cCuPc\u548cCuS\u7684Cu L-edge XANES\u5149\u8c31;<\/p>\n (e) \u5728\u975e\u539f\u4f4d FT k3<\/sup><\/em>\u52a0\u6743\u7684Cu-SA\/SNC\u548c\u5bf9\u6bd4\u6837\u7684Cu K-edge\u7684EXAFS\u8c31;<\/p>\n (f) \u5404\u81ea\u7684Cu-SA\/SNC\uff0cCu\u7b94\u548cCuPc\u7684WT-EXAFS\u5e73\u9762\u56fe;<\/p>\n (g) Cu-SA\/SNC\u5728K-edge\u7684FT-EXAFS\u62df\u5408\u66f2\u7ebf\uff08FT\u8303\u56f4\uff1a2.0-12.0\u00c5-1<\/sup>\uff0c\u62df\u5408\u8303\u56f4\uff1a0.5-2.0\u00c5\uff09\uff1b\u63d2\u56fe\u662fCu-SA\/SNC\u7684k<\/em>\u7a7a\u95f4\u7684EXAFS\u62df\u5408\u66f2\u7ebf;<\/p>\n (h) Cu-SA \/ SNC\u7684\u754c\u9762\u6a21\u578b\u793a\u610f\u56fe\u3002<\/p>\n \u56fe3. \u57fa\u4e8eORR\u7684Cu-SA\/SNC\u7684\u7406\u8bba\u8ba1\u7b97<\/p>\n \u4e24\u79cdS\u4fee\u9970\u7684Cu-SA\/SNC\u754c\u9762\u6a21\u578b\uff08S-d Cu\u2013N4<\/sub>\u2013C8<\/sub>S2<\/sub>\u548cS-b Cu\u2013N4<\/sub>\u2013C8<\/sub>S2<\/sub>\uff09\u548c\u65e0S Cu-SA \/NC\uff08Cu\u2013N4<\/sub> \u2013C10<\/sub>\uff09\u7684ORR\u81ea\u7531\u80fd\u56fe\u5904\u4e8e\u96f6\u7535\u6781\u7535\u4f4d\uff0cCu\u4e3a\u84dd\u8272\uff0cS\u4e3a\u9ec4\u8272\uff0cN\u4e3a\u7d2b\u8272\uff0cC\u4e3a\u68d5\u8272\u3002<\/p>\n \u56fe4. Cu-SA\/SNC\u7684\u539f\u4f4d XAFS\u8868\u5f81<\/p>\n (a) \u81ea\u5236\u7535\u5316\u5b66\u539f\u4f4d\u7535\u6c60\u8bbe\u7f6e\u7684\u793a\u610f\u56fe\u3002CE\uff0c\u5bf9\u7535\u6781\uff1bWE\uff0c\u5de5\u4f5c\u7535\u6781\uff1bRE\uff0c\u53c2\u6bd4\u7535\u6781;<\/p>\n (b) \u5728ORR\u671f\u95f4\u5904\u4e8e\u4e0d\u540c\u7535\u4f4d\u7684Cu-SA\/SNC\u7684Cu K-edge XANES\u5149\u8c31;<\/p>\n (c) \u539f\u4f4d\u6761\u4ef6\u4e0bCu K-edge XANES\u7684\u5f52\u4e00\u5316\u5dee\u5f02\u5149\u8c31;<\/p>\n (d) XANES\u5149\u8c31\u4e2dCu\u7684\u5e73\u5747\u6c27\u5316\u6001;<\/p>\n (e)\u5728\u975e\u539f\u4f4d\u548c\u4e0d\u540c\u7535\u4f4d\u4e0b\uff081.0 V\uff0c0.893 V\u548c0.7 V\uff09\u7684k<\/em>3<\/sup>\u52a0\u6743\u7684FT-EXAFS\u5149\u8c31;<\/p>\n (f) \u62df\u8bae\u7684Cu-SA\/SNC ORR\u673a\u5236\u3002C\uff1a\u68d5\u8272\uff1bN\uff1a\u7d2b\u8272\uff1bS\uff1a\u9ec4\u8272\uff1b\u94dc\uff1a\u84dd\u8272; H\uff1a\u767d\u8272\uff1bO\uff1a\u7ea2\u8272\u3002<\/p>\n \u3010\u7ed3\u8bba\u3011<\/p>\n \u603b\u4e4b\uff0c\u91c7\u7528\u539f\u5b50\u754c\u9762\u5de5\u7a0b\u65b9\u6cd5\uff0c\u5728\u78b3\u8f7d\u4f53\u4e0a\u5236\u5907\u4e86\u5355\u539f\u5b50\u94dc\u50ac\u5316\u5242\u3002\u5f97\u76ca\u4e8e\u94dc\u539f\u5b50\u4e0e\u8f7d\u4f53\u4e4b\u95f4\u7684\u5f3a\u534f\u540c\u4f5c\u7528\uff0c\u6240\u5f97\u50ac\u5316\u5242\u5177\u6709\u589e\u5f3a\u7684ORR\u6d3b\u6027\uff0c\u5e76\u4e14\u901a\u8fc7\u5b9e\u9645\u7684\u5b9e\u9a8c\u89c2\u5bdf\u548c\u7406\u8bba\u8ba1\u7b97\u6e05\u695a\u5730\u63ed\u793a\u4e86\u50ac\u5316\u673a\u7406\u3002\u5355\u91d1\u5c5e\u539f\u5b50\u50ac\u5316\u5242\u7684\u539f\u5b50\u754c\u9762\u6548\u5e94\u53ef\u80fd\u4f1a\u4fc3\u4f7f\u7528\u4e8e\u6c27\u8fd8\u539f\u7684\u5148\u8fdb\u7535\u6781\u6750\u6599\u7684\u53d1\u5c55\uff0c\u4ee5\u53ca\u5176\u4ed6\u7535\u50ac\u5316\u8fc7\u7a0b\u671d\u7740\u53ef\u6301\u7eed\u80fd\u6e90\u5e94\u7528\u7684\u65b9\u5411\u53d1\u5c55\u3002<\/p>\n \u6587\u732e\u94fe\u63a5<\/p>\n<\/p>\n
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