{"id":255778,"date":"2023-11-18T06:33:38","date_gmt":"2023-11-17T22:33:38","guid":{"rendered":"\/\/m.iemloyee.com\/?p=255778"},"modified":"2023-11-17T21:33:48","modified_gmt":"2023-11-17T13:33:48","slug":"nature-energy%ef%bc%9a%e5%90%88%e6%88%90%e6%b0%a8%e7%9a%84%e6%96%b0%e7%aa%81%e7%a0%b4","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=255778","title":{"rendered":"Nature Energy\uff1a\u5408\u6210\u6c28\u7684\u65b0\u7a81\u7834"},"content":{"rendered":"

\u4e00\u3001<\/strong> \u3010\u5bfc\u8bfb\u3011<\/strong>\u00a0 <\/strong><\/p>\n

\u4e00\u6c27\u5316\u6c2e(NO)\u662f\u4e3b\u8981\u7684\u7a7a\u6c14\u6c61\u67d3\u7269\u4e4b\u4e00\uff0c\u5b83\u5df2\u7ecf\u5f15\u8d77\u4e86\u4e25\u91cd\u7684\u73af\u5883\u95ee\u9898\uff0c\u5982\u9178\u96e8\u3001\u5149\u5316\u5b66\u70df\u96fe\u548c\u81ed\u6c27\u635f\u8017\u3002\u76ee\u524d\u6700\u5e38\u7528\u7684NO\u53bb\u9664\u65b9\u6cd5\u662f\u9009\u62e9\u6027\u50ac\u5316\u8fd8\u539f(SCR)\u6280\u672f\uff0c\u5c06NO\u8f6c\u5316\u4e3a\u65e0\u5bb3\u6c2e(N2<\/sub>)\u6d88\u8017\u5b9d\u8d35\u7684\u6c28(NH3<\/sub>)\u6216\u6c22(H2<\/sub>)\u7684\u8fd8\u539f\u5242\u3002<\/p>\n

\u4e2d\u56fd\u79d1\u5b66\u9662\u5927\u8fde\u5316\u5b66\u7269\u7406\u7814\u7a76\u6240\u8096\u5efa\u5e73\u7b49\u4eba<\/strong>\u63d0\u51fa\u662f\u5426\u53ef\u4ee5\u901a\u8fc7\u7ed3\u5408NO\u53bb\u9664\u548c\u6c28\u5408\u6210\u7684\u65b9\u6cd5\uff0c\u76f4\u63a5\u7528\u7535\u5316\u5b66\u65b9\u6cd5\u5c06NO\u4ece\u5e9f\u6c14\u8fd8\u539f\u4e3a\u6c28\uff08eNORR\uff09\u5462\uff1f\u7ed3\u679c\u53d1\u73b0\uff0cCu\u5bf9eNORR\u7684\u6d3b\u6027\u9ad8\u4e8eN2<\/sub>\u8fd8\u539f(NRR)\uff0c\u5bf9\u4ea7\u7269NH3<\/sub>\u7684\u9009\u62e9\u6027\u4e5f\u9ad8\u4e8eH2<\/sub>\u3002\u901a\u8fc7\u94dc\u6ce1\u6cab\u7535\u6781eNORR\u7684\u5b9e\u9a8c\u7814\u7a76\uff0c\u7535\u4f4d\u4e3a-0.9 V\u65f6\uff0c\u53d6\u5f97\u4e86\u9ad8\u8fbe93.5%\u7684\u6cd5\u62c9\u7b2c\u6548\u7387\uff08FE\uff09\u3002\u76f8\u5173\u5de5\u4f5c\u4ee5\u201cDirect Electrochemical Ammonia Synthesis from Nitric Oxide\u201d\u53d1\u8868\u5728Angewandte Chemie International Edition\u4e0a\u3002\u76ee\u524d\uff0c\u8be5\u8bba\u6587\u5df2\u88ab\u5f15\u7528240\u4f59\u6b21\u3002\u7136\u800c\uff0c\u867d\u7136\u8fd1\u4e24\u5e74NORR\u53d6\u5f97\u4e86\u4e00\u7cfb\u5217\u8fdb\u5c55\uff0c\u4f46\u662f\u6cd5\u62c9\u7b2c\u6548\u7387\u548c\u751f\u4ea7\u901f\u7387\u4ecd\u7136\u6bd4\u8f83\u4f4e\uff0c\u8fdc\u8fdc\u8fbe\u4e0d\u5230\u5de5\u4e1a\u5e94\u7528\u6240\u9700\u7684\u6548\u7387\u548c\u901f\u7387\uff0c\u4e5f\u4e00\u76f4\u88ab\u8ba4\u4e3a\u662f\u7535\u5316\u5b66\u5408\u6210\u6c28\u9886\u57df\u7684\u6700\u5927\u8bdf\u75c5\u3002<\/p>\n

\u4e8c\u3001\u3010\u6210\u679c\u63a0\u5f71\u3011<\/strong><\/p>\n

\u8fd1\u65e5\uff0c\u4e2d\u56fd\u79d1\u5b66\u9662\u5927\u8fde\u5316\u5b66\u7269\u7406\u7814\u7a76\u6240\u9093\u5fb7\u4f1a\u548c\u8096\u5efa\u5e73\u7b49\u4eba<\/strong>\u8bbe\u8ba1\u4e86\u4e00\u79cd\u94dc\u9521\u5408\u91d1\uff08Cu6<\/sub>Sn5<\/sub>\uff09\uff0c\u5176\u5728\u7535\u50ac\u5316NO\u5408\u6210NH3<\/sub>\u4e2d\u5177\u6709\u9ad8\u6d3b\u6027\u3002\u7814\u7a76\u53d1\u73b0\uff0c\u5728\u6d41\u52a8\u7535\u89e3\u69fd\u4e2d\uff0c\u5728\u7535\u6d41\u5bc6\u5ea6\u4e3a1400 mA cm-2<\/sup>\u65f6\uff0c\u4ea7\u6c28\u901f\u7387\u53ef\u8fbe10 mmol cm-2<\/sup> h-1<\/sup>\uff0c\u6cd5\u62c9\u7b2c\u6548\u7387\u5927\u4e8e96%\uff1b\u540c\u65f6\uff0c\u5728\u7535\u6d41\u5bc6\u5ea6\u4e3a600 mA cm-2<\/sup>\u65f6\uff0c\u4ea7\u6c28\u6548\u7387\u53ef\u8fbe~90%\uff0c\u5e76\u6301\u7eed\u5de5\u4f5c\u81f3\u5c11135 h\u3002<\/p>\n

\u76f8\u5173\u7814\u7a76\u6587\u7ae0\u4ee5\u201cElectrochemical synthesis of ammonia from nitric oxide using a copper\u2013tin alloy catalyst<\/em><\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728Nature Energy<\/em><\/strong>\u4e0a\u3002\"\"<\/p>\n

\u00a0<\/strong>\u4e09\u3001\u3010\u6838\u5fc3\u521b\u65b0\u70b9\u3011<\/strong><\/p>\n

\u672c\u6587\u7684\u7406\u8bba\u7814\u7a76\u8868\u660e\uff0cCu-Sn \u5408\u91d1\u662f eNORR \u5408\u6210\u6c28\u4e2d\u6709\u524d\u9014\u7684\u5019\u9009\u6750\u6599\uff0c\u800c\u5b9e\u9a8c\u7814\u7a76\u8bc1\u5b9e\u4e86 Cu6<\/sub>Sn5 <\/sub>\u50ac\u5316\u5242\u5728\u6d41\u901a\u6c60\u4e2d\u5177\u6709\u4f18\u5f02\u7684\u5408\u6210\u6c28\u6d3b\u6027\u3002<\/p>\n

\u00a0<\/strong><\/p>\n

\u00a0<\/strong>\u56db\u3001\u3010\u6570\u636e\u6982\u89c8\u3011<\/strong><\/p>\n

\u00a0\"\"<\/strong><\/p>\n

\u56fe<\/strong>1<\/strong>\uff08<\/strong>a<\/strong>\uff09\u7528\u4e8e\u4ece\u590d\u6742\u53cd\u5e94\u7f51\u7edc\u786e\u5b9a<\/strong> eNORR <\/strong>\u6d3b\u6027\u7684\u5168\u5c40\u80fd\u91cf\u4f18\u5316\u65b9\u6cd5\u793a\u610f\u56fe\u3002\uff08<\/strong>b<\/strong>\uff09\u5177\u6709\u4e0d\u540c\u6676\u4f53\u7ed3\u6784\u7684\u516d\u79cd\u94dc\u9521\u5408\u91d1\u3002\uff08<\/strong>c<\/strong>\uff09\u5177\u6709\u4e24\u4e2a\u72ec\u7acb\u63cf\u8ff0\u7b26\u7684\u4e8c\u7ef4\uff08\u51c6\uff09\u6d3b\u6027\u56fe\u3002\uff08<\/strong>d<\/strong>\uff09<\/strong>eNORR <\/strong>\u7684<\/strong>\u0394<\/strong>GRPD <\/sub><\/strong>\u51b3\u901f\u6b65\u9aa4\u7684\u4e8c\u7ef4\u56fe\u3002<\/strong>\u00a9 2023 Springer Nature<\/strong><\/p>\n

\u00a0\"\"<\/strong><\/p>\n

\u56fe<\/strong>2<\/strong> \uff08<\/strong>a<\/strong>\uff09<\/strong>Cu6<\/sub>Sn5<\/sub> <\/strong>\u50ac\u5316\u5242\u7684<\/strong>XRD<\/strong>\u3002\uff08<\/strong>b<\/strong>\uff09<\/strong>Cu6<\/sub>Sn5<\/sub> <\/strong>\u50ac\u5316\u5242\u7684\u6676\u4f53\u7ed3\u6784\u3002\uff08<\/strong>c<\/strong>\uff09<\/strong>Cu6<\/sub>Sn5<\/sub> <\/strong>\u50ac\u5316\u5242\u7684<\/strong> HAADF-STEM<\/strong>\u56fe\u50cf\u3002\uff08<\/strong>d<\/strong>\uff09<\/strong>Cu6<\/sub>Sn5<\/sub><\/strong>\u50ac\u5316\u5242\u7684<\/strong> STEM-EDS <\/strong>\u5143\u7d20\u80fd\u8c31\u56fe<\/strong>\u00a9 2023 Springer Nature<\/strong><\/p>\n

\u00a0\"\"<\/strong><\/p>\n

\u56fe<\/strong>3<\/strong>\uff08<\/strong>a<\/strong>\uff09\u6d41\u901a\u6c60\u793a\u610f\u56fe\u3002\uff08<\/strong>b<\/strong>\uff09\u6cd5\u62c9\u7b2c\u6548\u7387\uff08<\/strong>FE<\/strong>\uff09\u6bd4\u8f83\u3002\uff08<\/strong>c<\/strong>\uff09\u5728<\/strong> Cu6<\/sub>Sn5<\/sub><\/strong>\u7535\u6781\u4e0a\uff0c\u4e0e\u7535\u52bf\u76f8\u5173\u7684<\/strong> FE <\/strong>\u548c\u603b\u51e0\u4f55\u7535\u6d41\u5bc6\u5ea6\u3002\uff08<\/strong>d<\/strong>\uff09\u7a33\u5b9a\u6027\u6d4b\u8bd5\u3002\uff08<\/strong>e<\/strong>\uff09<\/strong>MEA <\/strong>\u7535\u89e3\u69fd\u793a\u610f\u56fe\u3002\uff08<\/strong>f<\/strong>\uff09\u5728<\/strong> MEA <\/strong>\u7535\u89e3\u69fd\u4e2d\uff0c\u4e0e\u7535\u6d41\u5bc6\u5ea6\u76f8\u5173\u7684<\/strong> FE <\/strong>\u548c\u7535\u538b\u3002\uff08<\/strong>g<\/strong>\uff09\u5728\u653e\u5927\u7684<\/strong> MEA <\/strong>\u7535\u89e3\u69fd\u4e2d\uff0c\u6c28\u7684<\/strong> FE <\/strong>\u548c\u7535\u6d41\u4e0e\u7535\u538b\u7684\u51fd\u6570\u5173\u7cfb\u3002\uff08<\/strong>h<\/strong>\uff09\u6c28\u751f\u4ea7\u7387\u4e0e\u7535\u6d41\u7684\u51fd\u6570\u5173\u7cfb\u3002<\/strong>\u00a9 2023 Springer Nature<\/strong><\/p>\n

\u00a0\"\"<\/strong><\/p>\n

\u56fe<\/strong>4 <\/strong>\uff08<\/strong>a<\/strong>\uff09\u5728\u4e0d\u540c\u7535\u538b\u4e0b\uff0c<\/strong>Cu6<\/sub>Sn5<\/sub><\/strong>\u50ac\u5316\u5242\u7684\u539f\u4f4d<\/strong>Sn K<\/strong>\u8fb9<\/strong> EXAFS<\/strong>\u8c31\u3002\u5728<\/strong> -0.2\u2009V vs RHE<\/strong>\u4e0b\uff0c<\/strong>Sn<\/strong>\u7b94<\/strong> (b) <\/strong>\u548c<\/strong> Cu6<\/sub>Sn5<\/sub>(c) <\/strong>\u7684<\/strong> k2<\/sup><\/strong>\u52a0\u6743<\/strong> EXAFS <\/strong>\u5149\u8c31\u7684\u5c0f\u6ce2\u53d8\u6362\u3002\uff08<\/strong>d<\/strong>\uff09\u5728\u4e0d\u540c\u7535\u538b\u4e0b\uff0c<\/strong>Cu6<\/sub>Sn5<\/sub><\/strong>\u50ac\u5316\u5242\u7684\u539f\u4f4d<\/strong>Cu K<\/strong>\u8fb9<\/strong> EXAFS<\/strong>\u8c31\u3002\u5728<\/strong> -0.2\u2009V vs RHE <\/strong>\u4e0b\uff0c<\/strong>Cu<\/strong>\u7b94<\/strong> (e) <\/strong>\u548c<\/strong> Cu6<\/sub>Sn5<\/sub>(f) <\/strong>\u7684<\/strong> k2<\/sup><\/strong>\u52a0\u6743<\/strong> EXAFS <\/strong>\u5149\u8c31\u7684\u5c0f\u6ce2\u53d8\u6362\u3002\uff08<\/strong>g<\/strong>\uff09\u5728<\/strong>Cu6<\/sub>Sn5 <\/sub><\/strong>\u50ac\u5316\u5242\u4e0a\uff0c<\/strong>eNORR<\/strong>\u7684\u5728\u7ebf<\/strong> DEMS <\/strong>\u6d4b\u91cf\u3002<\/strong>\u00a9 2023 Springer Nature<\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>5 <\/strong>\uff08<\/strong>a<\/strong>\uff09\u5177\u6709\u4e0d\u540c\u6c27\u8986\u76d6\u5ea6\u7684<\/strong>Cu<\/strong>\u3001<\/strong>Sn<\/strong>\u548c<\/strong>Cu6<\/sub>Sn5<\/sub><\/strong>\u7684\u7a33\u5b9a\u6027\u4e0e\u7535\u6781\u7535\u4f4d\u7684\u5173\u7cfb\u3002\uff08<\/strong>b<\/strong>\uff09<\/strong>NOH* <\/strong>\u8d28\u5b50\u5316\u53cd\u5e94\u7684\u8ba1\u7b97\u7535\u5316\u5b66\u52bf\u5792<\/strong> (Ga)<\/strong>\u968f<\/strong>Cu6<\/sub>Sn5<\/sub><\/strong>\u529f\u51fd\u6570<\/strong>(<\/strong>\u03a6<\/strong>)<\/strong>\u7684\u53d8\u5316\u3002\uff08<\/strong>c<\/strong>\uff09\u5728<\/strong>NO<\/strong>\u8d28\u5b50\u5316\u4e3a<\/strong>NOH*<\/strong>\u8fc7\u7a0b\u4e2d\uff0c\u8fc7\u6e21\u6001<\/strong>H<\/strong>\u00b7<\/strong>O<\/strong>\u952e\u7684<\/strong>COHP<\/strong>\u5206\u6790\u3002\uff08<\/strong>d<\/strong>\uff09<\/strong>NO<\/strong>\u8d28\u5b50\u5316\u4e3a<\/strong>NOH*<\/strong>\u8fc7\u6e21\u6001\u7684\u7535\u5316\u5b66\u52bf\u5792\u548c<\/strong>ICOHP<\/strong>\u6bd4\u8f83\u3002\uff08<\/strong>e<\/strong>\uff09\u5728<\/strong> 0\u2009V vs RHE <\/strong>\u65f6\uff0c<\/strong>Cu6<\/sub>Sn5<\/sub><\/strong>\u8868\u9762\u4e0a\u7684<\/strong> eNORR <\/strong>\u5408\u6210\u6c28\u7684\u81ea\u7531\u80fd\u56fe\u3002<\/strong>\u00a9 2023 Springer Nature<\/strong><\/p>\n

\u00a0<\/strong><\/p>\n

\u4e94\u3001\u3010\u6210\u679c\u542f\u793a\u3011<\/strong><\/p>\n

\u672c\u6587\u7ed3\u679c\u8868\u660e\uff0c\u7535\u6781\u6750\u6599\u7684\u5408\u7406\u8bbe\u8ba1\u5bf9\u4e8e\u4e00\u6c27\u5316\u6c2e\u8fd8\u539f\u6210\u6c28\u975e\u5e38\u91cd\u8981\u3002\u4f5c\u8005\u7684\u7406\u8bba\u7814\u7a76\u8868\u660e\uff0cCu-Sn \u5408\u91d1\u662f\u4e00\u6c27\u5316\u6c2e\u8fd8\u539f\u6210\u6c28\u7684\u7406\u60f3\u5019\u9009\u6750\u6599\uff0c\u800c\u5b9e\u9a8c\u7814\u7a76\u5219\u8bc1\u5b9e\u4e86Cu6<\/sub>Sn5<\/sub>\u50ac\u5316\u5242\u5728\u6d41\u52a8\u6c60\u4e2d\u751f\u4ea7\u6c28\u7684\u4f18\u5f02\u6d3b\u6027\u3002\u5728-0.23 V vs RHE \u7684\u7535\u6d41\u5bc6\u5ea6\u5927\u4e8e 1,400 mA cm-2\u00a0<\/sup>\u65f6\uff0c\u6c28\u751f\u4ea7\u7387\u8fbe\u5230 10 mmol cm-2<\/sup>\u00a0h-1<\/sup>\uff0cFE>96%\u3002\u6b64\u5916\uff0c\u5728\u653e\u5927\u7684 MEA \u7535\u89e3\u69fd\u4e2d\uff0c\u5f53\u7535\u6d41\u4e3a 400 A\u3001\u7535\u538b\u4e3a ~2.6 V \u65f6\uff0c\u6c28\u7684\u751f\u4ea7\u7387\u8fbe\u5230 ~2.5 mol h-1<\/sup>\u3002DFT \u8ba1\u7b97\u8868\u660e\uff0cCu6<\/sub>Sn5<\/sub>\u00a0\u50ac\u5316\u5242\u589e\u5f3a\u7684\u5185\u5728\u6d3b\u6027\u548c\u4f18\u5f02\u7684\u6297\u6c27\u5316\u6027\u662f eNORR \u7684\u5173\u952e\u6240\u5728\uff0c\u5e76\u5f88\u597d\u5730\u89e3\u91ca\u4e86\u5176\u57fa\u672c\u673a\u7406\u3002\u66f4\u91cd\u8981\u7684\u662f\uff0c\u672c\u7814\u7a76\u8bc1\u660e\u5728\u53ef\u518d\u751f\u7535\u529b\u9a71\u52a8\u7684\u53cd\u5411\u6c2e\u5faa\u73af\u4e2d\uff0c\u6c28\u7684\u53ef\u6301\u7eed\u751f\u4ea7\u662f\u53ef\u884c\u7684\u3002<\/p>\n

 <\/p>\n

\u539f\u6587\u8be6\u60c5<\/strong>\uff1aShao, J., Jing, H., Wei, P. et al. Electrochemical synthesis of ammonia from nitric oxide using a copper\u2013tin alloy catalyst. Nat Energy (2023). https:\/\/doi.org\/10.1038\/s41560-023-01386-6<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

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