{"id":223303,"date":"2021-06-16T12:00:43","date_gmt":"2021-06-16T04:00:43","guid":{"rendered":"\/\/m.iemloyee.com\/?p=223303"},"modified":"2021-06-16T10:27:54","modified_gmt":"2021-06-16T02:27:54","slug":"%e5%a4%9a%e4%bc%a6%e5%a4%9a%e5%a4%a7%e5%ad%a6edward-h-sargent%e9%99%a2%e5%a3%ab%e5%9b%a2%e9%98%9fnat-commun-%ef%bc%9a%e4%bd%8eco%e4%b8%8b%e7%9a%84au-cu%e8%83%bd%e5%a4%9f%e5%ae%9e%e7%8e%b0%e9%ab%98","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=223303","title":{"rendered":"\u591a\u4f26\u591a\u5927\u5b66Edward H. Sargent\u9662\u58eb\u56e2\u961fNat. Commun.\uff1a\u4f4e*CO\u4e0b\u7684Au-Cu\u80fd\u591f\u5b9e\u73b0\u9ad8\u6548\u7684CO2\u7535\u7532\u70f7\u5316"},"content":{"rendered":"

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

\u4e8c\u6c27\u5316\u78b3\u7535\u8fd8\u539f\u53cd\u5e94\uff08CO2<\/sub>RR\uff09\u751f\u6210\u6709\u4ef7\u503c\u7684\u71c3\u6599\u548c\u539f\u6599\uff0c\u4f7f\u7528\u53ef\u518d\u751f\u7535\u529b\u9a71\u52a8\uff0c\u4e3a\u50a8\u5b58\u95f4\u6b47\u6027\u53ef\u518d\u751f\u80fd\u6e90\u63d0\u4f9b\u4e86\u4e00\u79cd\u53ef\u6301\u7eed\u7684\u65b9\u6cd5\u3002\u5148\u524d\u7684CO2<\/sub>RR\u7814\u7a76\u5df2\u7ecf\u62a5\u544a\u4e86\u751f\u6210C1\u81f3C3\u5316\u5b66\u54c1\uff0c\u5982CO\u3001\u7532\u70f7\u3001\u7532\u9178\u76d0\u3001\u4e59\u70ef\u3001\u4e59\u9187\u548c\u6b63\u4e19\u9187\u3002\u5728\u8fd9\u4e9b\u4ea7\u54c1\u4e2d\uff0cCO2<\/sub>RR\u751f\u4ea7\u7684\u78b3\u4e2d\u6027\u7532\u70f7\u662f\u7406\u60f3\u7684\u3002\u5b9e\u7528\u7684CO2<\/sub>RR\u7cfb\u7edf\u9700\u8981\u751f\u4ea7\u5177\u6709\u9ad8\u9009\u62e9\u6027\u3001\u8f6c\u5316\u7387\u548c\u80fd\u6e90\u6548\u7387 \uff08EE\uff09\u7684\u6240\u9700\u4ea7\u54c1\u3002\u5728\u4e4b\u524d\u7684\u62a5\u544a\u4e2d\uff0c\u5927\u90e8\u5206\u6539\u5584CO2<\/sub>RR\u4e2d\u5bf9\u7532\u70f7\u9009\u62e9\u6027\u662f\u5728\u4f4e\u4e8e50 mA cm\u22122<\/sup>\u7684\u7535\u6d41\u5bc6\u5ea6\u4e0b\u8fd0\u884c\u7684\u3002\u6280\u672f\u7ecf\u6d4e\u5206\u6790\u8868\u660e\uff0cCO2<\/sub>RR\u7cfb\u7edf\u9700\u8981100\u00a0mA cm\u22122<\/sup>\u4ee5\u4e0a\u7684\u7535\u6d41\u5bc6\u5ea6\uff0c\u8fd9\u4fc3\u4f7f\u6211\u4eec\u4e13\u6ce8\u4e8e\u63d0\u9ad8CO2<\/sub>RR\u5728\u9ad8\u7535\u6d41\u5bc6\u5ea6\u8303\u56f4\uff08>100 mA cm\u22122<\/sup>\uff09\u4e0b\u5bf9\u7532\u70f7\u7684\u6027\u80fd\u3002\u5728CO2RR\u4e2d\uff0c*CO\u8d28\u5b50\u5316\u5230*CHO\u662f\u7532\u70f7\u751f\u6210\u7684\u7535\u4f4d\u51b3\u5b9a\u6b65\u9aa4\uff0c\u5b83\u4e0eC-C\u5076\u8054\u53cd\u5e94\u7ade\u4e89C2\u4ea7\u54c1\u3002\u6b64\u5916\uff0c*CO\u8d28\u5b50\u5316\u4e0e\u6790\u6c22\u53cd\u5e94\uff08HER\uff09\u7ade\u4e89\uff0c\u56e0\u4e3a\u4e24\u8005\u90fd\u9700\u8981*H\u3002\u540c\u65f6\u6291\u5236HER\u548cC-C\u5076\u8054\u53ef\u4ee5\u63d0\u9ad8\u7532\u70f7\u7684\u9009\u62e9\u6027\u3002Hori\u7b49\u4eba\u65e9\u671f\u7684\u7814\u7a76\u8868\u660e\uff0cCu\u662f\u751f\u6210\u7532\u70f7\u548cC2+<\/sub>\u4ea7\u7269\u7684\u8fc7\u6e21\u91d1\u5c5e\u50ac\u5316\u5242\uff1b\u4f46\u5b83\u7684\u4ea7\u54c1\u9009\u62e9\u6027\u5f88\u4f4e\u3002\u5728Cu\u4e2d\u5f15\u5165\u7b2c\u4e8c\u79cd\u91d1\u5c5e\u662f\u8c03\u8282CO2RR\u4e2d\u4ea7\u7269\u9009\u62e9\u6027\u7684\u6709\u6548\u9014\u5f84\u3002\u5148\u524d\u7684\u7814\u7a76\u62a5\u544a\u8868\u660e\uff0c\u4e0d\u540c\u7ed3\u6784\u7684Au\u2013Cu\u53cc\u91d1\u5c5e\u50ac\u5316\u5242\u5bf9CO\u6216\u9187\u8868\u73b0\u51fa\u826f\u597d\u7684\u9009\u62e9\u6027\u3002<\/p>\n

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

\u8fd1\u65e5\uff0c\u5728\u52a0\u62ff\u5927\u591a\u4f26\u591a\u5927\u5b66<\/b><\/strong>Edward H. Sargent<\/b><\/strong>\u9662\u58eb<\/b><\/strong>\u56e2\u961f\u7b49\u4eba<\/b><\/strong>\u5e26\u9886\u4e0b\uff0c\u5229\u7528\u4e86\u6291\u5236*CO\u4e8c\u805a\u5316\u548c\u6790\u6c22\u4fc3\u8fdb\u4e86\u7532\u70f7\u9009\u62e9\u6027\u7684\u4e8b\u5b9e\uff1a\u5728\u4f4e*CO\u8986\u76d6\u7387\u4e0b\uff0c\u5728Cu\u4e2d\u5f15\u5165Au\u6709\u5229\u4e8e*CO\u8d28\u5b50\u5316\u4e0eC-C\u5076\u8054\uff0c\u5e76\u524a\u5f31\u4e86*H\u8868\u9762\u7684\u5438\u9644\u80fd\uff0c\u5bfc\u81f4\u6790\u6c22\u51cf\u5c11\u3002\u901a\u8fc7\u5b9e\u9a8c\u6784\u5efa\u4e86\u4e00\u5957Au-Cu\u50ac\u5316\u5242\uff0c\u5e76\u901a\u8fc7\u8c03\u8282CO2<\/sub>\u6d53\u5ea6\u548c\u53cd\u5e94\u901f\u7387\u6765\u63a7\u5236*CO\u7684\u53ef\u7528\u6027\u3002\u4e0e\u5728100 mA cm\u22122<\/sup>\u4ee5\u4e0a\u8fd0\u884c\u7684\u6700\u4f73\u62a5\u544a\u76f8\u6bd4\uff0c\u8be5\u7b56\u7565\u53ef\u4f7f\u7532\u70f7\uff1aH2<\/sub>\u9009\u62e9\u6027\u6bd4\u63d0\u9ad81.6\u500d\u3002\u56e0\u6b64\uff0c\u5728\uff08112\u00b14\uff09mA cm\u22122<\/sup>\u7684\u751f\u4ea7\u901f\u7387\u4e0b\u5b9e\u73b0\u4e86\uff0856\u00b12\uff09%\u7684CO2<\/sub>\u8f6c\u5316\u7532\u70f7\u7684\u6cd5\u62c9\u7b2c\u6548\u7387\uff08FE\uff09\u3002\u8be5\u6210\u679c\u4ee5\u9898\u4e3a\u201cGold-in-copper at low *CO coverage enables efficient electromethanation of CO<\/b><\/strong>2<\/b><\/sub><\/strong>\u201d<\/b><\/strong>\u53d1\u8868\u5728\u4e86Nat. Commun.<\/b><\/strong>\u4e0a\u3002<\/p>\n

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

\u56fe<\/strong>1 DFT\u8ba1\u7b97<\/strong>\"\"<\/p>\n

a\uff09Au-Cu\u8868\u9762\u7684*CO\u3001*CHO\u548c*OCCOH\u4e2d\u95f4\u4f53\u7684\u51e0\u4f55\u5f62\u72b6\uff0c\u663e\u793a\u4e86*CO\u8d28\u5b50\u5316\u548cC-C\u5076\u8054\u7684\u7ade\u4e89\u6b65\u9aa4\u3002<\/p>\n

b\uff09Cu36<\/sub>\u3001Au1<\/sub>Cu35<\/sub>\u3001Au2<\/sub>Cu34<\/sub>\u548cAu3<\/sub>Cu33<\/sub>\u8868\u9762\u5728\u4e0d\u540c\u7684*CO\u8986\u76d6\u7387\u4e0b*CO\u8d28\u5b50\u5316\u548cC-C\u5076\u8054\u6b65\u9aa4\u7684\u53cd\u5e94\u81ea\u7531\u80fd\u5dee\u5f02\u3002\u56fe1\u4e2d\u7684Cu\u3001Au\u3001C\u3001O\u548cH\u539f\u5b50\u5206\u522b\u7528\u6a59\u8272\u3001\u9ec4\u8272\u3001\u7070\u8272\u3001\u7ea2\u8272\u548c\u767d\u8272\u5c0f\u7403\u8868\u793a\uff0c\u6c34\u5206\u5b50\u7528\u68d2\u72b6\u8868\u793a\u3002<\/p>\n

\u56fe<\/strong>2 PTFE\u4e0a7% Au-Cu\u50ac\u5316\u5242\u7684\u7ed3\u6784\u548c\u6210\u5206\u5206\u6790<\/strong>\"\"<\/p>\n

a\uff097% Au-Cu\/PTFE\u7684\u4f4e\u500d\u7387\u4e8c\u6b21\u7535\u5b50\u56fe\u50cf\uff08\u4e0a\uff09\u548c\u76f8\u5e94\u7684\u80cc\u6563\u5c04\u7535\u5b50\u56fe\u50cf\uff08\u4e0b\uff09\uff0c\u663e\u793a\u4e86\u5206\u6563\u7684Au\u7eb3\u7c73\u9897\u7c92\uff08\u4eae\u70b9\uff09\u3002<\/p>\n

b\uff097% Au-Cu\/PTFE\u7684Au\u548cCu\u7684\u6b21\u7ea7\u7535\u5b50\u56fe\u50cf\u548c\u76f8\u5e94\u7684EDX\u5143\u7d20\u5206\u5e03\u56fe\u3002<\/p>\n

c\uff097% Au-Cu \/PTFE\u7eb3\u7c73\u7ea4\u7ef4\u7684\u9ad8\u89d2\u5ea6\u73af\u5f62\u6697\u573a\u626b\u63cf\u900f\u5c04\u7535\u955c\uff08HAADF-STEM\uff09\u56fe\u50cf\u3002<\/p>\n

d\uff097% Au-Cu\/PTFE\u7eb3\u7c73\u7ea4\u7ef4\u622a\u9762\u4e0a\u7684Au\u548cCu\u7684\u9ad8\u500d\u660e\u573aSTEM\u56fe\u50cf\u548c\u76f8\u5e94\u7684\u5143\u7d20\u5206\u5e03\u56fe\u3002<\/p>\n

e,f\uff097% Au-Cu\/PTFE\u7684Cu 2p (e)\u548cAu 4f (f)\u7684\u9ad8\u5206\u8fa8\u7387XPS\u5149\u8c31\u3002<\/p>\n

\u56fe<\/strong>3 7% Au-Cu\u50ac\u5316\u5242\u5728\u4e0d\u540cCO<\/strong>2<\/sub><\/strong>\u6d53\u5ea6\u4e0b\u7684CO<\/strong>2<\/sub><\/strong>RR\u6027\u80fd<\/strong>\"\"<\/p>\n

a\uff09\u5728\u4e0d\u540c\u7684CO2<\/sub>\u6d53\u5ea6\u4e0b\uff0c7%Au-Cu\u4e0a\u7684\u7532\u70f7FEs\u3002<\/p>\n

b\uff09\u5728\u4e0d\u540c\u7684CO2<\/sub>\u6d53\u5ea6\u4e0b\uff0c7% Au-Cu\u4e0a\u7684\u4e59\u70efFEs\u3002<\/p>\n

c\uff09\u5728\u4e0d\u540c\u7684CO2<\/sub>\u6d53\u5ea6\u4e0b\uff0c\u4e0d\u540c\u7535\u6d41\u5bc6\u5ea6\u4e0b\u7684CH4<\/sub>\u9634\u6781EEs\u3002<\/p>\n

d\uff09\u5728\u4e0d\u540c\u7684CO2<\/sub>\u6d53\u5ea6\u4e0b\uff0c7% Au-Cu\u50ac\u5316\u5242\u4e0a\u7684FECH4<\/sub>\/FEC2+<\/sub>\u6bd4\u503c\u7684\u6bd4\u8f83\u3002\u8bef\u5dee\u6761\u8868\u793a\u57fa\u4e8e\u4e09\u4e2a\u72ec\u7acb\u6d4b\u91cf\u7684\u6807\u51c6\u504f\u5dee\u3002<\/p>\n

\u56fe<\/strong>4 \u572884% CO<\/strong>2<\/sub><\/strong>\u6d53\u5ea6\u4e0b\u7684CO<\/strong>2<\/sub><\/strong>RR\u6027\u80fd\u548c\u539f\u4f4dXAS\u8868\u5f81<\/strong>\"\"<\/p>\n

a\uff09\u572884%\u7684CO2<\/sub>\u6d53\u5ea6\u4e0b\uff0c\u4e0d\u540c\u7684\u50ac\u5316\u5242\u4e0a\u7684\u7532\u70f7FEs\u3002<\/p>\n

b\uff09\u5728200 mA cm\u22122<\/sup>\u4e0b\uff0c\u4e0d\u540c\u50ac\u5316\u5242\u4e0a\u7532\u70f7FEs\u7684\u6bd4\u8f83\u3002\u8bef\u5dee\u6761\u8868\u793a\u57fa\u4e8e\u4e09\u4e2a\u72ec\u7acb\u6d4b\u91cf\u7684\u6807\u51c6\u504f\u5dee\u3002<\/p>\n

c\uff09\u572884% CO2<\/sub>\u6761\u4ef6\u4e0b\uff0c\u4e0d\u540c\u50ac\u5316\u5242FECH4<\/sub>\/FEH2+<\/sub>\u6bd4\u503c\u7684\u6bd4\u8f83\u3002<\/p>\n

d\uff09\u5728\u6052\u5b9a\u7535\u6d41\u5bc6\u5ea6\u4e3a200 mA cm\u22122<\/sup>\u65f6\uff0cCO2<\/sub>RR\u8fc7\u7a0b\u4e2d\u4e0d\u540c\u50ac\u5316\u5242\u7684\u539f\u4f4dCu K\u8fb9XANES\u5149\u8c31\u3002<\/p>\n

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

\u7efc\u4e0a\u6240\u8ff0\uff0c\u5728Cu\u4e2d\u5f15\u5165Au\u6709\u5229\u4e8e*CO\u8d28\u5b50\u5316\uff0c\u5229\u7528CO2<\/sub>-N2<\/sub>\u5171\u8fdb\u6599\u5f62\u6210\u7532\u70f7\uff0c\u5e76\u5728\u9ad8\u7535\u6d41\u5bc6\u5ea6\u4e0b\u6291\u5236\u4e86HER\u3002DFT\u7ed3\u679c\u8868\u660e\uff0cAu-Cu\u8868\u9762\u4e0a*CO\u8986\u76d6\u7387\u7684\u964d\u4f4e\u6709\u5229\u4e8e*CO\u8d28\u5b50\u5316\u4e0eC-C\u5076\u8054\uff1b\u4e0eCu\u76f8\u6bd4\uff0cAu-Cu\u6291\u5236HER\uff0c\u5728\u7a00CO2<\/sub>\u6d41\u4e0b\u63d0\u9ad8\u7532\u70f7\u9009\u62e9\u6027\u3002\u5728\u5b9e\u9a8c\u4e2d\uff0c\u56e2\u961f\u5236\u5907\u4e86Au-Cu\u50ac\u5316\u5242\uff0c\u901a\u8fc7\u63a7\u5236CO2<\/sub>\u6d53\u5ea6\u548c\u7535\u6d41\u5bc6\u5ea6\u6765\u8c03\u8282*CO\u7684\u53ef\u7528\u6027\uff0c\u5176\u4e2d\u7532\u70f7\u5bf9H2<\/sub>\u7684\u9009\u62e9\u6027\u6700\u9ad8\u8fbe\u52302.7\u3002\u5728(112\u00b14)\u00a0mA cm\u22122<\/sup>\u7684\u5c40\u90e8\u7535\u6d41\u5bc6\u5ea6\u4e0b\uff0c\u5728CO2<\/sub>-N2<\/sub>\u5171\u8fdb\u6599\u7684\u60c5\u51b5\u4e0b\uff0cCO2<\/sub>\u5230\u7532\u70f7\u7684\u8f6c\u5316\u7387\u9ad8\u8fbe(56\u00b12)%\u3002\u8fd9\u4e9b\u7ed3\u679c\u8868\u660e\uff0c\u901a\u8fc7\u8bbe\u8ba1\u50ac\u5316\u5242\u548c\u8c03\u6574\u5c40\u90e8*CO\u8986\u76d6\u8303\u56f4\uff0c\u5c06CO2<\/sub>\u8f6c\u5316\u4e3a\u5177\u6709\u9ad8\u9009\u62e9\u6027\u3001\u9ad8\u8f6c\u5316\u7387\u548c\u9ad8\u9634\u6781EE\u7684\u78b3\u4e2d\u6027\u7532\u70f7\u7684\u7b56\u7565\u5f88\u6709\u524d\u666f\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5<\/b><\/strong>\uff1aGold-in-copper at low *CO coverage enables efficient electromethanation of CO<\/u>2<\/sub><\/u><\/a>\uff08Nat. Commun.\uff0c2021\uff0cDOI\uff1a10.1038\/s41467-021-23699-4\uff09<\/p>\n

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