{"id":172869,"date":"2019-04-17T11:45:05","date_gmt":"2019-04-17T03:45:05","guid":{"rendered":"\/\/m.iemloyee.com\/?p=172869"},"modified":"2019-04-16T22:45:16","modified_gmt":"2019-04-16T14:45:16","slug":"%e5%a4%a9%e6%b4%a5%e5%a4%a7%e5%ad%a6%e6%9d%9c%e5%b8%8c%e6%96%87%e3%80%81%e5%88%98%e8%be%89adv-energy-mater-%ef%bc%9a%e6%b4%bb%e6%80%a7%e9%92%8c%e5%9f%ba%e5%8d%95%e5%8e%9f%e5%ad%90%e5%90%88%e9%87%91","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=172869","title":{"rendered":"\u5929\u6d25\u5927\u5b66\u675c\u5e0c\u6587\u3001\u5218\u8f89Adv. Energy Mater.\uff1a\u6d3b\u6027\u948c\u57fa\u5355\u539f\u5b50\u5408\u91d1\u7684\u9ad8\u6548\u7535\u50ac\u5316\u6790\u6c22"},"content":{"rendered":"
\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n \u7535\u5316\u5b66\u5206\u89e3\u6c34\u662f\u5c06\u7535\u80fd\u8f6c\u5316\u4e3a\u9ad8\u80fd\u91cf\u5bc6\u5ea6\u7684\u6e05\u6d01\u548c\u53ef\u518d\u751f\u6c22\u80fd\u7684\u6709\u6548\u65b9\u5f0f\uff0c\u5176\u4e2d\u6d3b\u6027\u50ac\u5316\u5242\u5bf9\u4e8e\u4f4e\u8fc7\u7535\u4f4d\u4e0b\u7684\u9ad8\u6548\u8f6c\u5316\u975e\u5e38\u5173\u952e\u3002\u5230\u76ee\u524d\u4e3a\u6b62\uff0c\u5728\u9178\u6027\u4ecb\u8d28\u4e2d\u6790\u6c22\u53cd\u5e94\uff08HER\uff09\u4e2d\uff0cPt\u662f\u6700\u6709\u6548\u7684\u50ac\u5316\u5242\uff0c\u7136\u800c\u5728\u78b1\u6027\u6216\u4e2d\u6027\u6761\u4ef6\u4e0b\uff0cPt\u57fa\u50ac\u5316\u5242\u7684\u6027\u80fd\u6025\u5267\u4e0b\u964d\u3002\u56e0\u6b64\uff0c\u83b7\u5f97\u9ad8\u6548\u7684\u78b1\u6027HER\u50ac\u5316\u5242\u4ecd\u7136\u662f\u4e00\u4e2a\u5de8\u5927\u7684\u6311\u6218\u3002\u948c(Ru)\u91d1\u5c5e\u5bf9H2<\/sub>O\u5206\u5b50\u5177\u6709\u826f\u597d\u7684\u5438\u9644\u80fd\u529b\uff0c\u4f46\u662f\u5176\u5bf9\u4e8eH\u7684\u5438\u9644\u592a\u5f3a\uff0c\u5bfc\u81f4\u5176\u78b1\u6027HER\u50ac\u5316\u6027\u80fd\u8f83\u5dee\u3002\u6700\u8fd1\uff0c\u5355\u91d1\u5c5e\u5408\u91d1\uff08SAAs\uff09\u5728\u91d1\u5c5e\u57fa\u4f53\u4e2d\u6eb6\u8d28\u539f\u5b50\u548c\u57fa\u8d28\u4e4b\u95f4\u7684\u76f8\u4e92\u4f5c\u7528\u53ef\u4ee5\u6539\u53d8\u5b83\u4eec\u7684\u7535\u5b50\u7ed3\u6784\uff0c\u83b7\u5f97\u5408\u9002\u7684\u5bf9\u4e2d\u95f4\u4ea7\u7269\u7684\u5438\u9644\u80fd\uff0c\u8fdb\u800c\u83b7\u5f97\u826f\u597d\u7684\u50ac\u5316\u6027\u80fd\u3002\u56e0\u6b64\uff0c\u6784\u5efaRu\u57fa\u7684SAAs\u662f\u83b7\u5f97\u4f18\u5f02\u78b1\u6027HER\u6027\u80fd\u7684\u65b0\u9014\u5f84\u3002<\/p>\n \u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n \u6fc0\u5149\u6db2\u76f8\u70e7\u8680\u6cd5\u5177\u6709\u77ac\u95f4\u9ad8\u6e29\u9ad8\u538b\u548c\u5feb\u901f\u6dec\u706b\u7684\u7279\u70b9\uff0c\u662f\u4e00\u79cd\u5236\u5907\u4e9a\u7a33\u7ed3\u6784\u6750\u6599\u7684\u4f18\u826f\u65b9\u6cd5\u3002\u4e2d\u56fd\u5929\u6d25\u5927\u5b66<\/strong>\u7684\u5218\u8f89\u526f\u6559\u6388\u3001\u675c\u5e0c\u6587\u6559\u6388\u56e2\u961f<\/strong>\u957f\u671f\u81f4\u529b\u4e8e\u8109\u51b2\u6fc0\u5149\u53ef\u63a7\u5236\u5907\u5149\u7535\u529f\u80fd\u6750\u6599\uff08Angew. Chem. Int. Ed. 2015<\/em>, 127, 7157; J. Am. Chem. Soc.<\/em> 2010,132,9814\uff09\u3002\u8fd1\u65e5\uff0c\u8be5\u7814\u7a76\u7ec4\uff08\u5218\u8f89\u3001\u675c\u5e0c\u6587\u5171\u540c\u901a\u8baf<\/strong>\uff09\uff0c\u5229\u7528\u8109\u51b2\u6fc0\u5149\u6db2\u76f8\u70e7\u8680\uff08PLAL\uff09\u6280\u672f\u9996\u6b21<\/strong>\u5408\u6210\u4e86RuAu\u5355\u539f\u5b50\u5408\u91d1\uff08SAA\uff09\uff0c\u6839\u636e\u76f8\u56fe\uff0cRu\u548cAu\u5728\u5e73\u8861\u6761\u4ef6\u4e0b\u662f\u96be\u4ee5\u4e92\u7194\u7684\u3002RuAu SAAs\u5177\u6709\u5f88\u9ad8\u7684\u7a33\u5b9a\u6027\u548c\u4f18\u5f02\u7684\u50ac\u5316\u6d3b\u6027\uff0c\u572810 mA cm-2<\/sup>\u5904\u7684\u8fc7\u7535\u4f4d\u4e3a24 mV\uff0c\u8fdc\u4f4e\u4e8e\u78b1\u6027\u4ecb\u8d28\u4e2d\u7684Pt\/C\u50ac\u5316\u5242\uff0846 mV\uff09\u3002\u6b64\u5916\uff0cRuAu SAAs\u7684\u5355\u4f4d\u6d3b\u6027\u4f4d\u70b9\u7684\u50ac\u5316\u6d3b\u6027\u662fPt\/C\u50ac\u5316\u5242\u7684\u4e09\u500d\u3002\u5bc6\u5ea6\u6cdb\u51fd\u7406\u8bba\u8ba1\u7b97\u8868\u660e\uff0cRuAu SAAs\u4f18\u5f02\u7684\u50ac\u5316\u6d3b\u6027\u6e90\u4e8eRu\u548cAu\u539f\u5b50\u7684\u63a5\u529b\u63a5\u529b\u50ac\u5316\u4f5c\u7528\u3002\u76f8\u5173\u6210\u679c\u4ee5\u201c<\/strong>Ruthenium-Based Single-Atom Alloy with High Electrocatalytic Activity for Hydrogen Evolution<\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728Advanced Energy Materials<\/strong>\u4e0a\u3002<\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n \u56fe<\/strong> 1 RuAu SAAs<\/strong>\u7684\u5408\u6210\u548c\u7ed3\u6784\u8868\u5f81<\/strong><\/p>\n \uff08a\uff09PLAL\u88c5\u7f6e\u548cSAAs\u7eb3\u7c73\u9897\u7c92\u7684\u5f62\u6210\u793a\u610f\u56fe\uff1b<\/p>\n \uff08b\uff09RuAu-0.2 SAAs\u7684TEM\u56fe\u50cf\uff1b<\/p>\n \uff08c-f\uff09Ru\u548cAu\u7684HAADF\u56fe\u50cf\u548cMapping\u56fe\uff1b<\/p>\n \uff08g\uff09\u539f\u5b50\u5206\u8fa8\u7387HAADF-STEM\u56fe\u50cf\uff1b<\/p>\n \uff08h\uff09\u662f\uff08g\uff09\u7684\u7ea2\u8272\u865a\u7ebf\u77e9\u5f62\u7684\u653e\u5927\u56fe\u3002<\/p>\n \u56fe<\/strong> 2 RuAu SAAs\u57281 M KOH\u6eb6\u6db2\u4e2d\u7684HER\u50ac\u5316\u6027\u80fd\u548c\u7a33\u5b9a\u6027<\/strong><\/p>\n \uff08a\uff095 mV s-1<\/sup>\u7684\u7ebf\u6027\u626b\u63cf\u4f0f\u5b89\u6cd5\uff08LSV\uff09\u6781\u5316\u66f2\u7ebf;<\/p>\n \uff08b\uff09\u662f\uff08a\uff09\u7684\u5854\u83f2\u5c14\u659c\u7387\uff1b<\/p>\n \uff08c\uff09\u4e0d\u540c\u50ac\u5316\u5242EIS\u8c31\u56fe\uff1b<\/p>\n \uff08d\uff0950 mV\u8fc7\u7535\u4f4d\u7684TOF\uff1b<\/p>\n \uff08e\uff09\u7b2c1\u548c1000\u5708\u6d4b\u8bd5\u540e\u7684LSV\u66f2\u7ebf\uff1b<\/p>\n \uff08f\uff09\u8fc7\u7535\u4f4d10 mA cm-2<\/sup>\u65f6\u7684\u8ba1\u65f6\u7535\u6d41\u66f2\u7ebf\uff08\u5de6\uff09\u548c\u6cd5\u62c9\u7b2c\u6548\u7387\uff08\u53f3\uff09\u3002<\/p>\n \u56fe<\/strong> 3 RuAu<\/strong>\u5408\u91d1\u4e2d\u7684\u7535\u8377\u518d\u5206\u5e03<\/strong><\/p>\n \uff08a\uff09Ru\u548cRuAu-0.2\u7684Ru 3d XPS\u5149\u8c31\u56fe\uff1b<\/p>\n \uff08b\uff09Au\u548cRuAu-0.2\u7684Au 4f XPS\u5149\u8c31\u56fe\uff1b<\/p>\n 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\uff08c\uff09\u53e6\u4e00\u4e2a\u76f8\u90bbRu\u539f\u5b50\u4e0a\u7684H2<\/sub>O\u6d3b\u5316\uff1b<\/p>\n \uff08d\uff09Au\u539f\u5b50\u4e0a\u7684H2<\/sub>\u5f62\u6210\u3002<\/p>\n \u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n \u672c\u6587\u9996\u6b21<\/strong>\u5408\u6210\u4e86RuAu SAAs\uff0c\u5176\u5728\u78b1\u6027\u6eb6\u6db2\u4e2d\u5177\u6709\u4f18\u5f02\u7684\u7535\u50ac\u5316\u6027\u80fd\uff08\u8fc7\u7535\u4f4d24 mV@10 mA cm-2<\/sup>\uff09\u548c\u9ad8\u7684\u7a33\u5b9a\u6027\u3002RuAu SAA\u50ac\u5316\u5242\u5728\u6027\u80fd\u548c\u4ef7\u683c\uff08Pt\u76841\/30\uff09\u65b9\u9762\u5747\u4f18\u4e8e\u6700\u5148\u8fdb\u7684Pt\/C\u50ac\u5316\u5242\uff0c\u56e0\u6b64\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u663e\u793a\u51fa\u5de8\u5927\u7684\u4f18\u52bf\u3002\u5b9e\u9a8c\u6570\u636e\u548c\u7406\u8bba\u8ba1\u7b97\u8868\u660e\uff0cRuAu SAAs\u5728\u78b1\u6027\u4ecb\u8d28\u4e2d\u80fd\u591f\u52a0\u901fHER\u53cd\u5e94\uff0c\u5373Ru\u539f\u5b50\u6355\u83b7\u548c\u5206\u88c2\u6c34\u5206\u5b50\uff0cAu\u539f\u5b50\u4f5c\u4e3a\u5438\u6536H\u7684\u6d3b\u6027\u4f4d\u70b9\u4fc3\u8fdb\u6c22\u6c14\u7684\u5f62\u6210\u3002\u56e0\u6b64\uff0cRuAu SAAs\u80fd\u591f\u5b9e\u73b0\u78b1\u6027\u4ecb\u8d28\u4e2dHER\u7684\u8d85\u4f4e\u7535\u4f4d\u3002\u8fd9\u9879\u5de5\u4f5c\u8868\u660e\uff1a\uff081\uff09\u6fc0\u5149\u6db2\u76f8\u70e7\u8680\u6280\u672f\u662f\u5236\u5907\u65b0\u578b\u5355\u539f\u5b50\u5408\u91d1\u7684\u6709\u6548\u7b56\u7565\uff1b\uff082\uff09RuAu SAAs\u5177\u6709\u63a5\u529b\u50ac\u5316\u4f5c\u7528\uff0c\u975e\u5e38\u6709\u5e0c\u671b\u66ff\u4ee3Pt\u57fa\u50ac\u5316\u5242\u3002<\/p>\n<\/p>\n
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