{"id":134270,"date":"2018-04-12T06:30:27","date_gmt":"2018-04-11T22:30:27","guid":{"rendered":"\/\/m.iemloyee.com\/?p=134270"},"modified":"2018-04-12T10:50:30","modified_gmt":"2018-04-12T02:50:30","slug":"%e8%8b%8f%e5%b7%9e%e5%a4%a7%e5%ad%a6%e5%8d%97%e4%ba%ac%e5%b8%88%e8%8c%83%e5%a4%a7%e5%ad%a6nat-commun-%e5%8e%9f%e4%bd%8d%e6%8b%93%e6%89%91%e8%bd%ac%e6%8d%a2%e5%88%b6%e8%b6%85%e8%96%84bi","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=134270","title":{"rendered":"\u82cf\u5dde\u5927\u5b66&\u5357\u4eac\u5e08\u8303\u5927\u5b66Nat. Commun.: \u539f\u4f4d\u62d3\u6251\u8f6c\u6362\u5236\u8d85\u8584Bi\u7eb3\u7c73\u7247\u7528\u4e8e\u9009\u62e9\u6027\u7535\u50ac\u5316\u8fd8\u539fCO2\u5236\u7532\u9178\u76d0"},"content":{"rendered":"
\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n CO2<\/sub>\u7535\u50ac\u5316\u8fd8\u539f\u5236\u5316\u5b66\u71c3\u6599\u662fCO2<\/sub>\u6355\u96c6\u53ca\u5e94\u7528\u9886\u57df\u7684\u91cd\u8981\u7814\u7a76\u65b9\u5411\u3002\u5f53\u4e0e\u53ef\u518d\u751f\u80fd\u6e90\uff08\u5982\u592a\u9633\u80fd\uff09\u76f8\u7ed3\u5408\u65f6\uff0c\u8be5\u8fc7\u7a0b\u5177\u6709\u652f\u6491\u53ef\u6301\u7eed\u7684\u80fd\u6e90\u7ecf\u6d4e\u548c\u5316\u5b66\u5de5\u4e1a\u7684\u6f5c\u529b\u3002\u8be5\u8fc7\u7a0b\u7684\u6280\u672f\u6311\u6218\u4e4b\u4e00\u662f\u53d1\u5c55\u9ad8\u6d3b\u6027\u3001\u957f\u5bff\u547d\u3001\u9ad8\u9009\u62e9\u6027\u7684CO2<\/sub>\u7535\u8fd8\u539f\uff08CO2<\/sub>RR\uff09\u50ac\u5316\u5242\u3002\u7532\u9178\uff08\u7532\u9178\u76d0\uff09\u662f\u4e00\u7c7b\u5e38\u89c1\u7684CO2<\/sub>RR\u4ea7\u7269\uff0c\u5b83\u662f\u8bb8\u591a\u5316\u5de5\u8fc7\u7a0b\u7684\u91cd\u8981\u4e2d\u95f4\u4ea7\u7269\uff0c\u5728\u7532\u9178\uff08\u7532\u9178\u76d0\uff09\u71c3\u6599\u7535\u6c60\u4e2d\u53ef\u88ab\u7528\u4f5c\u5316\u5b66\u71c3\u6599\u30021980\u5e74\uff0cHori\u7b49\u9996\u5148\u62a5\u9053\u4e86\u4e00\u4e9bII B, III A, \u548cIV A\u65cf\u91d1\u5c5e\uff08Pd, Cd, Hg, In, Sn, TI\uff09\u53ef\u5c06CO2<\/sub>\u8fd8\u539f\u6210\u7532\u9178\u3002\u8fd9\u4e9b\u91d1\u5c5e\u5177\u6709\u9ad8\u7684\u6790\u6c22\u8fc7\u7535\u52bf\uff0c\u5bf9CO2<\/sub>\u2022–<\/sup>\u4e2d\u95f4\u4ea7\u7269\u5438\u9644\u8f83\u5f31\uff0c\u4f7f\u5176\u4e0a\u7684\u78b3\u539f\u5b50\u7ecf\u5386\u8d28\u5b50\u5316\u8fc7\u7a0b\u5e76\u8f6c\u53d8\u6210\u4ee5\u7532\u9178\u4e3a\u4e3b\u7684\u8fd8\u539f\u4ea7\u7269\u3002<\/p>\n \u7136\u800c\uff0c\u8fd9\u5176\u4e2d\u7684\u8bb8\u591a\u91cd\u91d1\u5c5e\uff08Pd, Cd, Hg, TI\uff09\u5177\u6709\u9ad8\u6bd2\u6027\uff0c\u5bf9\u73af\u5883\u6709\u5bb3\uff0c\u65e0\u6cd5\u5b9e\u9645\u5e94\u7528\u3002\u800c\u901a\u8fc7Sn\u57fa\u6750\u6599\u5236\u7532\u9178\u76d0\u867d\u53d7\u5230\u5f88\u591a\u5173\u6ce8\uff0c\u4f46\u5176\u50ac\u5316\u9009\u62e9\u6027\u6709\u9650\uff0850~80%\uff09\uff0c\u5e38\u4f34\u968f\u6709\u5927\u91cf\u7684H2<\/sub>\u548cCO\u4ea7\u7269\u751f\u6210\u3002\u5728\u5143\u7d20\u5468\u671f\u8868\u4e2d\uff0cBi\u7684\u4f4d\u7f6e\u9760\u8fd1\u4e0a\u8ff0\u91d1\u5c5e\u7684\u4f4d\u7f6e\uff0c\u56e0\u6b64\u4e5f\u53ef\u80fd\u5177\u6709\u8fd8\u539fCO2<\/sub>\u5236\u7532\u9178\u76d0\u7684\u80fd\u529b\uff0c\u4f46\u76f8\u6bd4\u76f8\u90bb\u5143\u7d20\uff0c\u5b83\u7684\u6bd2\u6027\u5f88\u4f4e\uff0c\u66f4\u52a0\u73af\u5883\u53cb\u597d\u3002\u4e4b\u524d\u6709\u5173Bi\u57fa\u6750\u6599\u7684\u7814\u7a76\u4e3b\u8981\u5728\u79bb\u5b50\u6db2\u4f53\u6216\u975e\u8d28\u5b50\u7535\u89e3\u8d28\u4e2d\u8fdb\u884c\uff0c\u5176\u4e3b\u8981\u4ea7\u7269\u4e3aCO\u3002Bi\u57fa\u6750\u6599\u5728\u6eb6\u6db2\u4e2d\u8fdb\u884cCO2<\/sub>RR\u7684\u6f5c\u529b\u521a\u5f00\u59cb\u88ab\u53d1\u6398\u3002\u5176\u50ac\u5316\u6027\u80fd\u7684\u8fdb\u4e00\u6b65\u63d0\u9ad8\u6709\u8d56\u4e8e\u901a\u8fc7\u7eb3\u7c73\u5c3a\u5ea6\u7684\u673a\u6784\u5de5\u7a0b\u63d0\u9ad8\u5176\u8868\u9762\u79ef\u3002Bi\u5177\u6709\u5c42\u53e0\u72b6\u7684\u8702\u7a9d\u7ed3\u6784\uff0c\u8fd9\u4e0e\u9ed1\u78f7\u76f8\u4f3c\u3002\u8be5\u7ed3\u6784\u4f7f\u5f97Bi\u53ef\u88ab\u5265\u79bb\u6210\u4e8c\u7ef4\u5355\u5c42\u6216\u591a\u5c42\u7ed3\u6784\uff0c\u5177\u6709\u66f4\u5927\u7684\u8868\u9762\u79ef\u548c\u66f4\u9ad8\u7684\u7535\u50ac\u5316\u6027\u80fd\u3002\u7a33\u5b9a\u7684\u5355\u5c42Bi\u867d\u5728\u7406\u8bba\u4e0a\u88ab\u9884\u6d4b\u8fc7\uff0c\u4f46\u662f\u901a\u8fc7\u4f20\u7edf\u7684\u201c\u81ea\u4e0a\u800c\u4e0b\u201d\uff08\u673a\u68b0\u5265\u79bb\uff09\u6216\u201c\u81ea\u4e0b\u800c\u4e0a\u201d\uff08\u5316\u5b66\u5408\u6210\uff09\u6cd5\u76f4\u63a5\u5236\u5907\u5355\u5c42\u6216\u51e0\u5c42Bi\u662f\u6781\u5177\u6311\u6218\u7684\u3002<\/p>\n \u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n \u8fd1\u65e5\uff0c\u82cf\u5dde\u5927\u5b66\u7684\u674e\u5f66\u5149\u6559\u6388\u548c\u5357\u4eac\u5e08\u8303\u5927\u5b66\u7684\u674e\u4e9a\u98de\u6559\u6388\uff08\u5171\u540c\u901a\u8baf\u4f5c\u8005\uff09<\/strong>\u62a5\u9053\u4e86\u901a\u8fc7BiOI\uff08\u94cb\u7898\u6c27\u5316\u7269\uff09\u7eb3\u7c73\u7247\u6a21\u677f\u539f\u4f4d\u62d3\u6251\u8f6c\u6362\u5236\u5907\u8d85\u8584Bi\u7eb3\u7c73\u7247\u7684\u65b9\u6cd5\u3002\u8be5Bi\u7eb3\u7c73\u7247\u5728CO2<\/sub>\u7535\u8fd8\u539f\u8fc7\u7a0b\u4e2d\u5c55\u73b0\u4e86\u5f88\u9ad8\u7684\u6d3b\u6027\uff08\u5728-1.74 V vs. SCE\u6761\u4ef6\u4e0b\uff0cHCOO–<\/sup>\u751f\u4ea7\u7684\u5206\u7535\u6d41\u5bc6\u5ea6\u8fbe24 mA\/cm2<\/sup>\uff09\uff0c\u5e76\u5728\u5bbd\u7535\u52bf\u8303\u56f4\u5185\u5177\u6709\u63a5\u8fd1100%\u7684\u9009\u62e9\u6027\uff0c\u5176\u7a33\u5b9a\u6027\u4e5f\u5f88\u597d\uff08\u8fd0\u884c10 h\u6d3b\u6027\u548c\u9009\u62e9\u6027\u65e0\u635f\u5931\uff09\uff0c\u6bd4\u5f53\u524d\u62a5\u9053\u7684\u5176\u5b83CO2<\/sub>RR\u5236\u7532\u9178\u7684\u50ac\u5316\u5242\u66f4\u6709\u4f18\u52bf\u3002\u8be5\u7814\u7a76\u901a\u8fc7\u91cf\u5b50\u5316\u5b66\u8ba1\u7b97\u63ed\u793a\u4e86Bi(001)\u9762\u751f\u6210\u4e86\u7a33\u5b9a\u7684\u4e2d\u95f4\u4ea7\u7269OCHO*\u662fBi\u7eb3\u7c73\u7247\u5177\u6709\u9ad8\u9009\u62e9\u6027\u7684\u539f\u56e0\u3002\u6700\u540e\uff0c\u901a\u8fc7\u4f7f\u7528\u94f1\/\u78b3\uff08Ir\/C\uff09\u50ac\u5316\u5242\u4f5c\u4e3a\u6790\u6c27\u50ac\u5316\u5242\uff0c\u4ee52\u8282AA\u78b1\u6027\u7535\u6c60\u4f9b\u7535\uff0cCO2<\/sub>RR-OER\u7535\u89e3\u4f53\u7cfb\u8fbe\u5230\u4e86\u7ea695%\u7684\u7535\u6d41\u6548\u7387\u548c47%\u7684\u7535\u80fd\u5230\u7532\u9178\u7684\u6548\u7387\u3002\u76f8\u5173\u7814\u7a76\u6210\u679c\u4ee5\u201c<\/strong>Ultrathin bismuth nanosheets from in situ topotactic transformation for selective electrocatalytic CO2<\/sub> reduction to formate<\/strong>\u201d<\/strong>\u4e3a\u9898\u53d1\u8868\u5728Nature Communications<\/strong>\u4e0a<\/strong>\u3002<\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n \u56fe\u4e00<\/strong> BiOI<\/strong>\u7eb3\u7c73\u7247\u7684\u7ed3\u6784\u8868\u5f81<\/strong><\/p>\n \uff08b\uff09SEM\u56fe\u50cf<\/p>\n \uff08c\uff09~\uff08d\uff09\u4e0d\u540c\u653e\u5927\u500d\u6570\u7684TEM\u56fe\u50cf<\/p>\n \uff08e\uff09\u7535\u5b50\u884d\u5c04\u56fe<\/p>\n \uff08f\uff09AFM\u56fe\u50cf\u53ca\u5bf9\u5e94\u7684\u9ad8\u5ea6\u5256\u9762\u56fe<\/p>\n \u6ce8\uff1a\u6bd4\u4f8b\u5c3a\u5206\u522b\u4e3a200nm\uff08b\uff09\uff0c50nm\uff08c\uff09\u548c5nm\uff08d\uff09<\/p>\n \u56fe\u4e8c<\/strong> \u62d3\u6251\u8fd8\u539f\u5236\u5907\u7684<\/strong>Bi<\/strong>\u7eb3\u7c73\u7247\u7684\u7ed3\u6784\u8868\u5f81<\/strong><\/p>\n \uff08b\uff09XRD\u8c31\u56fe\uff08\u5185\u56fe\u4e3aBi\u7684\u6676\u4f53\u7ed3\u6784\u793a\u610f\u56fe\uff09<\/p>\n \uff08c\uff09SEM\u56fe\u50cf<\/p>\n \uff08d\uff09~\uff08e\uff09\u4e0d\u540c\u653e\u5927\u500d\u6570\u7684TEM\u56fe\u50cf<\/p>\n \uff08f\uff09\u7535\u5b50\u884d\u5c04\u56fe<\/p>\n \u6ce8\uff1a\u6bd4\u4f8b\u5c3a\u5206\u522b\u4e3a200nm\uff08c\uff09\uff0c20nm\uff08d\uff09\u548c5nm\uff08e\uff09<\/p>\n \u56fe\u4e09<\/strong> Bi<\/strong>\u7eb3\u7c73\u7247\u7684\u7535\u5316\u5b66\u6027\u80fd\u8868\u5f81<\/strong><\/p>\n \uff08b\uff09Bi\u7eb3\u7c73\u7247\u5236HCOO–<\/sup>\uff0cCO\uff0c\u4ee5\u53caH2<\/sub>\u65f6\u7684\u6cd5\u62c9\u7b2c\u7535\u6d41\u6548\u7387\u4e0e\u5546\u4e1aBi\u7eb3\u7c73\u7c89\u672b\u5236HCOO–<\/sup>\u65f6\u7684\u6cd5\u62c9\u7b2c\u7535\u6d41\u6548\u7387\u7684\u5bf9\u6bd4<\/p>\n \uff08c\uff09Bi\u7eb3\u7c73\u7247\u53ca\u5546\u4e1aBi\u7eb3\u7c73\u7c89\u672b\u5236HCOO–<\/sup>\u7684\u5206\u7535\u6d41\u5bc6\u5ea6\u5bf9\u6bd4<\/p>\n \uff08d\uff09\u901a\u8fc7\u8ba1\u65f6\u7535\u6d41\u6cd5\u8868\u5f81Bi\u7eb3\u7c73\u7247\u7684\u7535\u5316\u5b66\u7a33\u5b9a\u6027\uff08680 mV\uff0c10 h\uff09<\/p>\n \u56fe\u56db<\/strong> Bi(001)<\/strong>\u5e73\u9762<\/strong>CO2<\/sub>RR<\/strong>\u8fc7\u7a0b\u7684\u91cf\u5b50\u5316\u5b66\u8ba1\u7b97<\/strong><\/p>\n \uff08d\uff09Bi(001)\u5e73\u9762\u751f\u6210HCOO–<\/sup>\uff0cCO\uff0c\u4ee5\u53caH2<\/sub>\u7684\u81ea\u7531\u80fd<\/p>\n \uff08e\uff09Bi\u4e0eOCHO*\uff0c COOH*\uff0c\u4ee5\u53caH*\u7b49\u7269\u79cd\u7684p\u8f68\u9053\u7684\u6295\u5f71\u6001\u5bc6\u5ea6\uff08\u8d39\u7c73\u80fd\u7ea7\u4e3a0 eV\uff09<\/p>\n \u56fe\u4e94<\/strong> Bi<\/strong>\u7eb3\u7c73\u7247<\/strong>CO2<\/sub>RR<\/strong>\u8026\u5408<\/strong>Ir\/C OER<\/strong>\u7684\u7535\u89e3\u6027\u80fd<\/strong><\/p>\n \uff08b\uff09CO2<\/sub>RR-OER\u7535\u89e3\u5b9e\u9a8c\u88c5\u7f6e\u7167\u7247\uff0c\u4f53\u7cfb\u75312\u8282AA\u78b1\u6027\u7535\u6c60\u4f9b\u7535<\/p>\n \uff08c\uff09CO2<\/sub>RR-OER\u7535\u89e3\u8fc7\u7a0b\u4e2d\u7535\u6d41\u5bc6\u5ea6\u968f\u65f6\u95f4\u7684\u53d8\u5316<\/p>\n \u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n \u8be5\u7814\u7a76\u62a5\u9053\u4e86\u8d85\u8584Bi\u7eb3\u7c73\u7247\u53ef\u901a\u8fc7BiOI\u7eb3\u7c73\u7247\u6a21\u677f\u7684\u539f\u4f4d\u62d3\u6251\u8f6c\u5316\u800c\u5f97\u5230\u3002\u5f97\u5230\u7684Bi\u7eb3\u7c73\u7247\u5177\u6709\u4e8c\u7ef4\u7ed3\u6784\u548c\u5355\u6676\u7279\u6027\uff0c\u8868\u73b0\u51fa\u9ad8\u7684\u8868\u9762\u79ef\u548c\u4e30\u5bcc\u7684Bi\u4f4d\u70b9\u3002\u57280.5 M\u7684NaHCO3<\/sub>\u7535\u89e3\u8d28\u4e2d\u8fdb\u884c\u7684CO2<\/sub>RR\u6d4b\u8bd5\u7ed3\u679c\u8868\u660e\uff0c\u5728\u5c06CO2<\/sub>\u8fd8\u539f\u4e3a\u7532\u9178\u76d0\u7684\u8fc7\u7a0b\u4e2d\uff0cBi\u7eb3\u7c73\u7247\u5177\u6709\u9ad8\u9009\u62e9\u6027\uff08\u5bbd\u7535\u52bf\u8303\u56f4\u5185\u6cd5\u62c9\u7b2c\u7535\u6d41\u6548\u7387\u5927\u4e8e90%\uff09\u3001\u9ad8\u6d3b\u6027\uff08\u5728-1.74 V vs. SCE\u6761\u4ef6\u4e0b\uff0cHCOO–<\/sup>\u751f\u4ea7\u7684\u7535\u6d41\u5bc6\u5ea6\u8fbe24 mA\/cm2<\/sup>\uff09\u3001\u957f\u5bff\u547d\uff08\u8fd0\u884c10 h\u6d3b\u6027\u548c\u9009\u62e9\u6027\u65e0\u635f\u5931\uff09\u7684\u7279\u70b9\uff0c\u6bd4\u5f53\u524d\u62a5\u9053\u7684\u5176\u5b83CO2<\/sub>RR\u5236\u7532\u9178\u7684\u50ac\u5316\u5242\u66f4\u6709\u4f18\u52bf\u3002DFT\u8ba1\u7b97\u63ed\u793a\u4e86Bi(001)\u9762\u751f\u6210\u4e86\u7a33\u5b9a\u7684\u4e2d\u95f4\u4ea7\u7269OCHO*\u662f\u9ad8\u9009\u62e9\u6027\u7684\u539f\u56e0\u3002\u6700\u540e\uff0c\u901a\u8fc7\u4e0eIr\/C\u50ac\u5316\u5242\u8026\u5408\uff0c2\u8282AA\u78b1\u6027\u7535\u6c60\u4f9b\u7535\uff0cCO2<\/sub>RR-OER\u7535\u89e3\u8fbe\u5230\u4e86\u7ea695%\u7684\u7535\u6d41\u6548\u7387\u548c47%\u7684\u7535\u80fd\u5230\u7532\u9178\u7684\u6548\u7387\u3002<\/p>\n \u6587\u732e\u94fe\u63a5\uff1a<\/strong>Ultrathin bismuth nanosheets from in situ topotactic transformation for selective electrocatalytic CO2<\/sub> reduction to formate<\/a>\uff08Nat. Commun. 2018, DOI: 10.1038\/s41467-018-03712-z\uff09<\/p>\n \u672c\u6587\u7531\u6750\u6599\u4eba\u7f16\u8f91\u90e8\u65b0\u4eba\u7ec4\u5468\u4f1f\u7f16\u8bd1\uff0c\u5218\u5b87\u9f99\u5ba1\u6838\uff0c\u70b9\u6211\u52a0\u5165\u6750\u6599\u4eba\u7f16\u8f91\u90e8<\/a>\u3002<\/p>\n
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