{"id":99996,"date":"2017-09-07T06:30:51","date_gmt":"2017-09-06T22:30:51","guid":{"rendered":"\/\/m.iemloyee.com\/?p=99996"},"modified":"2017-09-05T12:41:09","modified_gmt":"2017-09-05T04:41:09","slug":"%e5%a4%8d%e6%97%a6%e5%a4%a7%e5%ad%a6%e9%83%91%e8%80%bf%e5%b3%b0aem%ef%bc%9a%e6%b0%b4%e8%92%b8%e6%b0%94%e5%88%bb%e8%9a%80%e6%b0%ae%e6%8e%ba%e6%9d%82%e7%a2%b3%e7%ba%b3%e7%b1%b3%e7%ae%a1%e6%8f%90","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=99996","title":{"rendered":"\u590d\u65e6\u5927\u5b66\u90d1\u803f\u5cf0AEM\uff1a\u6c34\u84b8\u6c14\u523b\u8680\u6c2e\u63ba\u6742\u78b3\u7eb3\u7c73\u7ba1\u63d0\u5347\u7535\u50ac\u5316CO2\u8fd8\u539f\u4e3aCO\u7684\u9009\u62e9\u6027"},"content":{"rendered":"

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

\u7535\u50ac\u5316CO2<\/sub>\u8fd8\u539f\u53cd\u5e94\uff08CO2<\/sub> RR\uff09\u4e0d\u4ec5\u6709\u671b\u964d\u4f4e\u5927\u6c14\u5c42\u4e2d\u7684CO2<\/sub>\u542b\u91cf\uff0c\u7f13\u89e3\u6e29\u5ba4\u6548\u5e94\uff0c\u8fd8\u80fd\u5c06CO2<\/sub>\u8f6c\u5316\u4e3a\u71c3\u6599\uff0c\u51cf\u5c11\u5316\u77f3\u80fd\u6e90\u6d88\u8017\uff0c\u4fc3\u8fdb\u78b3\u5faa\u73af\u7684\u8fdb\u884c\u3002\u7136\u800c\uff0c\u4ee5\u6c34\u6eb6\u6db2\u4f5c\u7535\u89e3\u8d28\u65f6\uff0c\u7535\u50ac\u5316CO2<\/sub> RR\u5f80\u5f80\u4f34\u968f\u6709\u5267\u70c8\u7684\u6790\u6c22\u53cd\u5e94\uff08HER\uff09\u3002HER\u4f5c\u4e3aCO2<\/sub> RR\u6700\u4e3b\u8981\u7684\u526f\u53cd\u5e94\uff0c\u4e25\u91cd\u5236\u7ea6\u4e86CO2<\/sub> RR\u7684\u6d3b\u6027\u548c\u9009\u62e9\u6027\u3002\u6700\u8fd1\uff0c\u7814\u7a76\u4eba\u5458\u53d1\u73b0\u6c2e\u63ba\u6742\u7684\u78b3\u6750\u6599\u80fd\u6709\u6548\u50ac\u5316CO2<\/sub> RR\uff0c\u5176\u50ac\u5316\u6d3b\u6027\u53ca\u9009\u62e9\u6027\u53d6\u51b3\u4e8e\u6c2e\u63ba\u6742\u6d53\u5ea6\u548c\u6c2e\u63ba\u6742\u7c7b\u578b\u3002Ajayan\u7b49\u4eba\u6307\u51fa\u5f53\u6c2e\u63ba\u6742\u7c7b\u578b\u4e0d\u540c\u65f6\uff0c\u751f\u6210\u4ea7\u7269\u7684\u79cd\u7c7b\u53ca\u6bd4\u4f8b\u5448\u73b0\u51fa\u8f83\u5927\u7684\u5dee\u5f02\uff1a\u5728\u7535\u50ac\u5316\u53cd\u5e94\u6761\u4ef6\u4e0b\uff0c\u5421\u5576\u6c2e\u548c\u77f3\u58a8\u6c2e\u5bf9CO2<\/sub> RR\u548cHER\u5747\u663e\u793a\u51fa\u8f83\u9ad8\u7684\u50ac\u5316\u6d3b\u6027\uff0c\u800c\u5421\u54af\u6c2e\u4ec5\u5bf9CO2<\/sub> RR\u6709\u8f83\u9ad8\u7684\u50ac\u5316\u6d3b\u6027\uff0c\u5bf9HER\u7684\u50ac\u5316\u6d3b\u6027\u5219\u76f8\u5bf9\u8f83\u4f4e\u3002\u5982\u4f55\u91c7\u7528\u7b80\u5355\u6613\u884c\u7684\u65b9\u6cd5\u8c03\u63a7\u78b3\u6750\u6599\u4e2d\u7684\u6c2e\u63ba\u6742\u6d53\u5ea6\u548c\u6c2e\u63ba\u6742\u7c7b\u578b\uff0c\u4ece\u800c\u63d0\u9ad8\u4f53\u7cfb\u5bf9CO2<\/sub> RR\u7684\u50ac\u5316\u6d3b\u6027\u548c\u9009\u62e9\u6027\u5c31\u6210\u4e86\u975e\u91d1\u5c5e\u50ac\u5316\u5242\u6210\u5206\u8c03\u63a7\u7684\u4e00\u4e2a\u96be\u9898\u3002<\/p>\n

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

\u8fd1\u65e5\uff0c\u590d\u65e6\u5927\u5b66\u7684<\/strong>\u90d1\u803f\u5cf0<\/strong>\u6559\u6388<\/strong>\uff08\u901a\u8baf\u4f5c\u8005\uff09<\/strong>\u8bfe\u9898\u7ec4\u91c7\u7528\u9ad8\u6e29\u6c34\u84b8\u6c14\u523b\u8680\u7684\u65b9\u6cd5\u5bf9\u6c2e\u63ba\u6742\u7684\u78b3\u7eb3\u7c73\u7ba1\u4e0a\u4e0d\u540c\u63ba\u6742\u7c7b\u578b\u7684\u6c2e\u539f\u5b50\u8fdb\u884c\u4e86\u9009\u62e9\u6027\u523b\u8680\u3002\u7531\u4e8e\u5421\u5576\u6c2e\u3001\u5421\u54af\u6c2e\u3001\u77f3\u58a8\u6c2e\u5bf9\u6c34\u5206\u5b50\u7684\u5438\u9644\u80fd\u529b\u4e0d\u540c\uff0c\u5373\u6c34\u84b8\u6c14\u66f4\u5bb9\u6613\u5438\u9644\u5728\u5421\u5576\u6c2e\u548c\u77f3\u58a8\u6c2e\u4e0a\uff0c\u5374\u96be\u4ee5\u5438\u9644\u5728\u5421\u54af\u6c2e\u4e0a\uff0c\u6240\u4ee5\u5f53\u9ad8\u6e29\u6c34\u84b8\u6c14\u901a\u8fc7\u6c2e\u63ba\u6742\u7684\u78b3\u7eb3\u7c73\u7ba1\u65f6\uff0c\u90bb\u8fd1\u5421\u5576\u6c2e\u548c\u77f3\u58a8\u6c2e\u7684\u78b3\u539f\u5b50\u66f4\u5bb9\u6613\u88ab\u523b\u8680\u9664\u53bb\uff0c\u4f7f\u5421\u5576\u6c2e\u548c\u77f3\u58a8\u6c2e\u8131\u843d\u3002\u800c\u76f8\u5bf9\u8f83\u591a\u7684\u5421\u54af\u6c2e\u88ab\u4fdd\u7559\u4e0b\u6765\uff0c\u4f7f\u4f53\u7cfb\u4e2d\u5421\u54af\u6c2e\u6240\u5360\u7684\u6bd4\u4f8b\u5347\u9ad8\uff0c\u4ece\u800c\u663e\u8457\u964d\u4f4e\u4e86HER\u7684\u6cd5\u62c9\u7b2c\u6548\u7387\uff0c\u5e76\u63d0\u9ad8\u4e86CO2<\/sub>\u8fd8\u539f\u751f\u6210CO\u7684\u6548\u7387\u3002\u7ecf\u9ad8\u6e29\u6c34\u84b8\u6c14\u523b\u8680\u5904\u7406\uff0c\u5421\u54af\u6c2e\u5728\u6240\u6709\u6c2e\u539f\u5b50\u4e2d\u6240\u5360\u7684\u6bd4\u4f8b\u7531\u5904\u7406\u524d\u768422.1%\u5347\u9ad8\u523055.9%\uff0c\u8be5\u4f53\u7cfb\u50ac\u5316CO2<\/sub> RR\u751f\u6210CO\u7684\u9009\u62e9\u7387\u5728-0.5V vs. RHE\u8fbe\u5230\u6700\u5927\u503c88%\u3002\u8fd9\u9879\u5de5\u4f5c\u7528\u7b80\u4fbf\u7684\u6c34\u84b8\u6c14\u523b\u8680\u65b9\u6cd5\u5927\u5e45\u5ea6\u63d0\u9ad8\u4e86\u7535\u50ac\u5316CO2<\/sub> RR\u7684\u9009\u62e9\u6027\u3002\u8be5\u7814\u7a76\u6210\u679c\u4ee5\u201cSelective Etching of Nitrogen-Doped Carbon by Steam for Enhanced Electrochemical CO2<\/sub> Reduction<\/strong>\u201d\u4e3a\u9898\uff0c\u53d1\u8868\u5728Adv. Energy Mater.<\/strong>\u4e0a\u3002<\/p>\n

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

\u56fe<\/strong>1. CN-H-CNTs<\/strong>\u7684\u5236\u5907\u8fc7\u7a0b\u53ca\u5176\u5728\u7535\u50ac\u5316<\/strong>CO2<\/sub> RR<\/strong>\u548c<\/strong>HER<\/strong>\u65f6\u7684\u50ac\u5316\u6d3b\u6027\u793a\u610f\u56fe<\/strong><\/p>\n

\"\"<\/p>\n

\u6ce8\uff1aCN-H-CNTs\u8868\u793a\u7ecf\u9ad8\u6e29\u6c34\u84b8\u6c14\u523b\u8680\u5904\u7406\u540e\u7684\u6c2e\u63ba\u6742\u78b3\u7eb3\u7c73\u7ba1\uff0c\u5176\u4e2dCN\u4e3a\u6c2e\u63ba\u6742\u7684\u78b3\u8868\u5c42\uff0cH\u4e3a\u9ad8\u6e29\u6c34\u84b8\u6c14\u523b\u8680\u8fc7\u7a0b\uff0cCNTs\u4e3a\u78b3\u7eb3\u7c73\u7ba1\u6784\u6210\u7684\u8584\u819c\u3002<\/p>\n

(a) CN-H-CNTs\u7684\u5236\u5907\u8fc7\u7a0b\u3002<\/p>\n

(b) CN-H-CNTs\u5bf9CO2<\/sub> RR\u548cHER\u7684\u7535\u50ac\u5316\u6d3b\u6027\u5bf9\u6bd4\uff0c\u5176\u4e2dCN-H-CNTs\u5bf9CO2<\/sub> RR\u7684\u50ac\u5316\u6d3b\u6027\u8fdc\u9ad8\u4e8e\u5bf9HER\u7684\u50ac\u5316\u6d3b\u6027\u3002<\/p>\n

\u56fe<\/strong>2. CN-CNTs<\/strong>\u548c<\/strong>CN-H-CNTs<\/strong>\u5f62\u8c8c\u53ca\u7ed3\u6784\u8868\u5f81<\/strong><\/p>\n

\"\"<\/p>\n

(a)CNTs (b)H- CNTs (c)CN- CNTs (d)CN-H- CNTs\u7684SEM\u56fe\uff0c\u5176\u6bd4\u4f8b\u5c3a\u4e3a500 nm\uff1b\u63d2\u56fe\u4e3a\u76f8\u5e94\u7684TEM\u56fe\uff0c\u5176\u6bd4\u4f8b\u5c3a\u4e3a10 nm\u3002<\/p>\n

(b) CNTs\u3001H- CNTs\u3001CN- CNTs\u3001CN-H- CNTs\u7684\u62c9\u66fc\u5149\u8c31\u3002<\/p>\n

\u56fe<\/strong>3. CN-CNTs<\/strong>\u548c<\/strong>CN-H-CNTs<\/strong>\u7684<\/strong>XPS<\/strong>\u53ca\u4e0d\u540c\u63ba\u6742\u7c7b\u578b\u7684\u6c2e\u539f\u5b50\u6240\u5360\u6bd4\u4f8b<\/strong><\/p>\n

\"\"<\/p>\n

(a) CN-CNTs (b) CN-H-CNTs\u4f53\u7cfb\u4e2dN 1s\u7684XPS\u8c31\u3002<\/p>\n

(c) CN-CNTs (d) CN-H-CNTs\u4f53\u7cfb\u4e2d\u4e0d\u540c\u63ba\u6742\u7c7b\u578b\u7684\u6c2e\u539f\u5b50\u6240\u5360\u6bd4\u4f8b\u53ca\u6c2e\u63ba\u6742\u6d53\u5ea6\u3002\u7531(d)\u56fe\u53ef\u77e5\uff0c\u9ad8\u6e29\u6c34\u84b8\u6c14\u523b\u8680\u524d\u540e\u4f53\u7cfb\u4e2d\u6c2e\u542b\u91cf\u57fa\u672c\u4e0d\u53d8\uff0c\u8fd9\u8868\u660e\u523b\u8680\u9664\u53bb\u6c2e\u539f\u5b50\u548c\u78b3\u539f\u5b50\u7684\u901f\u7387\u57fa\u672c\u76f8\u540c\u3002<\/p>\n

\u56fe<\/strong>4. CO2<\/sub> RR<\/strong>\u7535\u50ac\u5316\u6027\u80fd\u8868\u5f81<\/strong><\/p>\n

\"\"<\/p>\n

(a) CN-H-CNTs\u3001CN-CNTs\u3001H-CNTs\u7684\u5faa\u73af\u4f0f\u5b89\u66f2\u7ebf\u3002\u6d4b\u8bd5\u6240\u7528\u7684\u7535\u89e3\u8d28\u6eb6\u6db2\u4e3aCO2<\/sub>\u9971\u548c\u76840.1M KHCO3<\/sub>\u6eb6\u6db2\uff0c\u626b\u63cf\u901f\u5ea6\u4e3a20 mV s-1<\/sup>\u3002<\/p>\n

(b) CN-H-CNTs (c) CN-CNTs (d) H-CNTs\u5728\u7535\u50ac\u5316\u8fc7\u7a0b\u4e2d\u751f\u6210CO\u3001H2<\/sub>\u3001CH4<\/sub>\u7684\u6cd5\u62c9\u7b2c\u6548\u7387\u3002<\/p>\n

(e) CN-H-CNTs\u3001CN-CNTs\u3001H-CNTs\u7684Tafel\u66f2\u7ebf\uff0c\u5176\u4e2dlog jCO<\/sub>\u4e3a\u751f\u6210CO\u90e8\u5206\u7684\u7535\u6d41\u53d6\u5bf9\u6570\u503c\u3002CN-H-CNTs\u7684Tafel\u659c\u7387\u4e3a124 mV\/dec\uff0c\u63a5\u8fd1118 mV\/dec\uff0c\u8fd9\u8868\u660eCO2<\/sub> RR\u7684\u901f\u63a7\u6b65\u9aa4\u4e3aCO2<\/sub>\u5f97\u7535\u5b50\u751f\u6210\u5438\u9644\u5728\u50ac\u5316\u5242\u8868\u9762\u7684CO2<\/sub> \u00b7-<\/sup>\u4e2d\u95f4\u4f53\u3002<\/p>\n

(f) \u6052\u7535\u4f4d\u6761\u4ef6\u4e0bCN-H-CNTs\u7535\u50ac\u5316CO2<\/sub> RR\u7684\u6cd5\u62c9\u7b2c\u6548\u7387\u968f\u65f6\u95f4\u53d8\u5316\u7684\u66f2\u7ebf\uff0c\u6d4b\u8bd5\u7535\u4f4d\u4e3a-0.5V vs. RHE\u3002<\/p>\n

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

\u91c7\u7528\u9ad8\u6e29\u6c34\u84b8\u6c14\u523b\u8680\u7684\u65b9\u6cd5\u80fd\u6709\u6548\u8c03\u63a7\u6c2e\u63ba\u6742\u78b3\u6750\u6599\u4e2d\u4e0d\u540c\u63ba\u6742\u7c7b\u578b\u7684\u6c2e\u539f\u5b50\u6bd4\u4f8b\u3002\u7531\u4e8e\u5421\u5576\u6c2e\u548c\u77f3\u58a8\u6c2e\u4e0e\u6c34\u5206\u5b50\u7ed3\u5408\u7684\u80fd\u529b\u66f4\u5f3a\uff0c\u5b83\u4eec\u5468\u56f4\u7684\u78b3\u539f\u5b50\u66f4\u5bb9\u6613\u88ab\u6c34\u5206\u5b50\u523b\u8680\u800c\u9664\u53bb\uff0c\u4ece\u800c\u5bfc\u81f4\u4f53\u7cfb\u4e2d\u5421\u54af\u6c2e\u6240\u5360\u6bd4\u4f8b\u5347\u9ad8\u3002\u7531\u6b64\u5f97\u5230\u7684CN-H-CNTs\u5728\u7535\u50ac\u5316\u6761\u4ef6\u4e0b\u66f4\u503e\u5411\u4e8e\u53d1\u751fCO2<\/sub> RR\u751f\u6210CO\uff0c\u800cHER\u5219\u88ab\u6291\u5236\u3002\u5728-0.5V vs. RHE\u7684\u7535\u4f4d\u4e0b\uff0cCN-H-CNTs\u7535\u50ac\u5316CO2<\/sub> RR\u751f\u6210CO\u7684\u6cd5\u62c9\u7b2c\u6548\u7387\u8fbe\u5230\u4e86\u6700\u5927\u503c88%\u3002\u8fd9\u9879\u5de5\u4f5c\u7528\u6709\u5229\u4e8e\u5927\u89c4\u6a21\u751f\u4ea7\u7684\u7b80\u5355\u65b9\u6cd5\u6709\u6548\u8c03\u63a7\u4e86\u6c2e\u63ba\u6742\u78b3\u6750\u6599\u4e2d\u7684\u6c2e\u63ba\u6742\u7c7b\u578b\uff0c\u5e76\u5927\u5e45\u5ea6\u63d0\u9ad8\u4e86CO2<\/sub> RR\u751f\u6210CO\u7684\u50ac\u5316\u6d3b\u6027\u548c\u9009\u62e9\u6027\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1a<\/strong>Selective Etching of Nitrogen-Doped Carbon by Steam for Enhanced Electrochemical CO2<\/sub> Reduction <\/a>(Adv. Energy Mater., 2017, DOI:\u00a010.1002\/aenm.201701456)<\/p>\n

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