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perovskite oxide with super-exchange induced atomic-scale synergistic active centers enables ultrafast hydrogen evolution\u201d<\/b><\/strong>\u53d1\u8868\u5728\u4e86Nat. Commun.<\/b><\/strong>\u4e0a\u3002<\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/b><\/strong><\/p>\n \u56fe1 \u7528\u4e8e\u78b1\u6027HER\u7535\u50ac\u5316\u7684\u4e24\u79cd\u534f\u540c\u50ac\u5316\u5242\u4e0a\u53cd\u5e94\u8def\u5f84\u7684\u793a\u610f\u56fe<\/b><\/strong> a\uff09\u8d35\u91d1\u5c5e\u4e0e\u91d1\u5c5e\uff08\u6c22\uff09\u6c27\u5316\u7269\u8026\u5408\u7684\u4f20\u7edf\u590d\u5408\u4f53\u7cfb\u3002<\/p>\n b\uff09\u5177\u6709\u539f\u5b50\u7ea7\u534f\u540c\u6d3b\u6027\u4e2d\u5fc3\u7684\u5bfc\u7535\u5355\u76f8\u4f53\u7cfb\u3002<\/p>\n \u56fe2 STRO\u9499\u949b\u77ff\u7684\u7ed3\u6784\u8868\u5f81<\/b><\/strong> a\uff09STRO\u9499\u949b\u77ff\u7684\u7ed3\u6784\u793a\u610f\u56fe\u3002<\/p>\n b\uff09STO\u548cSTRO\u7684XRD\u56fe\u8c31\u3002\u63d2\u56fe\u662f\u4e3b\u5cf0\u7684\u6269\u5c55\u533a\u57df\u3002<\/p>\n c\uff09STRO\u7684XRD\u7cbe\u4fee\u56fe\u8c31\u3002<\/p>\n d\uff09STRO\u7684HRTEM\u56fe\u50cf\u3002\u6bd4\u4f8b\u5c3a\uff1a2 nm\u3002<\/p>\n e\uff09HRTEM\u5bf9\u5e94\u7684FFT\u6a21\u5f0f\u3002<\/p>\n f\uff09HAADF-STEM\u548c\u5bf9\u5e94\u7684STRO\u5143\u7d20\u5206\u5e03\u56fe\u3002\u6bd4\u4f8b\u5c3a\uff1a20 nm\u3002<\/p>\n \u56fe3 \u78b1\u6027\u4ecb\u8d28\u4e2d\u7684\u7535\u50ac\u5316HER\u6027\u80fd<\/b><\/strong> a\uff09\u5728Ar\u9971\u548c\u76841 M KOH\u6eb6\u6db2\u4e2d\uff0cSTO\u3001STRO\u3001SRO\u548c\u5546\u4e1aPt\/C\u50ac\u5316\u5242\u7684\u6781\u5316\u66f2\u7ebf\u3002\u626b\u63cf\u901f\u7387\u4e3a5 mV s-1<\/sup>\u3002<\/p>\n b\uff09\u6781\u5316\u66f2\u7ebf\u76f8\u76f8\u5e94\u7684Tafel\u56fe\u3002<\/p>\n c\uff09\u5305\u62ec10 mA cm-2<\/sup>\u8fc7\u7535\u4f4d\u548cTafel\u659c\u7387\u7684\u91d1\u5c5e\u6c27\u5316\u7269\u4e4b\u95f4\u7684\u78b1\u6027HER\u6d3b\u6027\u6bd4\u8f83\u56fe\u3002<\/p>\n d\uff09ECSA\u6821\u6b63\u7684STO\u3001STRO\u548cSRO\u50ac\u5316\u5242\u7684\u672c\u5f81\u6d3b\u6027\u56fe\u3002\u63d2\u56fe\uff1a\u5728\u03b7 = 0.1 V\u7684\u8fc7\u7535\u4f4d\u4e0b\u7684\u6bd4\u6d3b\u6027\u3002<\/p>\n e\uff091 M KOH\u6eb6\u6db2\u4e2dSTO\u3001STRO\u548cSRO\u50ac\u5316\u5242\u7684TOF\u4e0e\u6d4b\u8bd5\u7535\u4f4d\u4e4b\u95f4\u7684\u5173\u7cfb\u56fe\u3002<\/p>\n f\uff09STRO\u548c\u5546\u4e1aPt\/C\u50ac\u5316\u5242\u5728\u52a0\u901f\u8010\u4e45\u6027\u8bd5\u9a8c1000\u6b21\u5faa\u73af\u540e\u7684\u6781\u5316\u66f2\u7ebf\u3002<\/p>\n g\uff09\u5728\u6052\u5b9a\u768410 mA cm-2<\/sup>\u9634\u6781\u7535\u6d41\u5bc6\u5ea6\u4e0bSTRO\u7684\u8ba1\u65f6\u7535\u4f4d\u54cd\u5e94\u66f2\u7ebf\u3002<\/p>\n \u56fe4<\/b><\/strong>\u8d85\u4ea4\u6362\u4f5c\u7528\u8bf1\u5bfc\u7684\u7535\u8377\u91cd\u65b0\u6392\u5e03<\/b><\/strong> a\uff09STO\u548cSTRO\u7684\u5f52\u4e00\u5316Ti L2<\/sub>,<\/sub>3<\/sub>\u8fb9XAS\u5149\u8c31\u56fe\u3002<\/p>\n b\uff09STO\u548cSTRO\u7684Ti L3<\/sub>\u8fb9XAS\u5149\u8c31\u7684\u653e\u5927\u3002<\/p>\n c\uff09STRO\u548cSRO\u7684\u5f52\u4e00\u5316Ru L2<\/sub>,<\/sub>3<\/sub>\u8fb9XAS\u5149\u8c31\u56fe\u3002<\/p>\n d\uff09STRO\u548cSRO\u7684Ru L3<\/sub>\u8fb9XAS\u5149\u8c31\u7684\u653e\u5927\u3002<\/p>\n e\uff09STRO\u4e2d\u7535\u8377\u5206\u5e03\u7684\u4fef\u89c6\u56fe\u3002<\/p>\n f\uff09STRO\u4e2d\u8d85\u7ea7\u4ea4\u6362\u76f8\u4e92\u4f5c\u7528\u7684\u793a\u610f\u56fe\u3002<\/p>\n \u56fe<\/b><\/strong>5<\/b><\/strong>\u00a0\u63d0\u9ad8\u7684\u6c27\u7a7a\u4f4d\u548c\u7535\u5bfc\u7387<\/b><\/strong> a\uff09STO\u548cSTRO\u7684\u6c27\u975e\u5316\u5b66\u8ba1\u91cf\u6bd4\u3002<\/p>\n b\uff09STO\u548cSTRO\u7684O 1 s XPS\u5149\u8c31\u56fe\u3002<\/p>\n c\uff09STO\u548cSTRO\u7684EPR\u5149\u8c31\u56fe\u3002<\/p>\n d\uff09\u5ba4\u6e29\u4e0bSTO\u548cSTRO\u7684\u7535\u5b50\u7535\u5bfc\u7387\u3002<\/p>\n e\uff09STO\u548cSTRO\u7684\u7d2b\u5916\u53ef\u89c1\u5149\u8c31Tauc\u56fe\u3002<\/p>\n f\uff09STO\u548cSTRO\u8ba1\u7b97\u7684DOS\u56fe\u3002<\/p>\n \u56fe<\/b><\/strong>6<\/b><\/strong>\u00a0DFT\u8ba1\u7b97\u548c\u7535\u50ac\u5316\u673a\u7406<\/b><\/strong> a\uff09STO\u3001STRO\u548cSRO\u7684\u8868\u9762\u7ed3\u6784\u6a21\u578b\u56fe\u3002<\/p>\n b\uff09\u89e3\u79bb\u6c34\u8fc7\u7a0b\u4e2d\u8fc7\u6e21\u6001OH-H\u952e\u65ad\u88c2\u7684\u52a8\u529b\u5b66\u80fd\u5792\uff08TS\uff09\u56fe\u3002<\/p>\n c\uff09\u00a0STO\u3001STRO\u548cSRO\u4e2d\u78b1\u6027HER\u9014\u5f84\u7684\u5409\u5e03\u65af\u81ea\u7531\u80fd\u56fe\u3002\u63d2\u56fe\u662fSTRO\u5728\u53cd\u5e94\u4e0d\u540c\u9636\u6bb5\u7684\u8868\u9762\u6784\u578b\u3002<\/p>\n d\uff09Eb<\/sub>\u3001\u0394GH*<\/sub>\u3001\u0394GOH*<\/sub>\u503c\u4e0e\u6d4b\u5f97\u7684STO\u3001STRO\u548cSRO\u50ac\u5316\u5242\u672c\u5f81\u6d3b\u6027\u4e4b\u95f4\u7684\u5173\u7cfb\u56fe\u3002<\/p>\n e\uff09\u5355\u76f8STRO\u9499\u949b\u77ff\u6c27\u5316\u7269\u50ac\u5316\u78b1\u6027HER\u7684\u534f\u540c\u50ac\u5316\u673a\u7406\u793a\u610f\u56fe\u3002\u7ea2\u8272\u548c\u84dd\u8272\u516b\u9762\u4f53\u5206\u522b\u4ee3\u8868RuO6<\/sub>\u548cTiO6<\/sub>\u3002<\/p>\n \u3010\u5c0f\u7ed3\u3011<\/b><\/strong><\/p>\n \u8fd9\u9879\u5de5\u4f5c\u6210\u529f\u8bbe\u8ba1\u5f00\u53d1\u4e86\u5177\u6709\u539f\u5b50\u5c3a\u5ea6\u591a\u6d3b\u6027\u4e2d\u5fc3\u534f\u540c\u50ac\u5316\u7684\u5355\u76f8\u9499\u949b\u77ff\u50ac\u5316\u5242\uff0c\u5e76\u5c06\u5176\u7528\u4f5c\u9ad8\u6548\u7684\u78b1\u6027HER\u50ac\u5316\u5242\u3002\u8fd9\u9879\u5de5\u4f5c\u4ece\u6839\u672c\u4e0a\u63ed\u793a\u4e86\u5355\u76f8\u591a\u6d3b\u6027\u4f4d\u70b9\u7684\u534f\u540c\u4f5c\u7528\uff0c\u4e3a\u901a\u8fc7\u539f\u5b50\u5c3a\u5ea6\u8c03\u63a7\u7b56\u7565\u5f00\u53d1\u5148\u8fdb\u7684\u9ad8\u6027\u80fd\u7684\u7535\u50ac\u5316\u5242\u63d0\u4f9b\u4e86\u65b0\u7684\u7814\u7a76\u601d\u8def\u3002<\/p>\n<\/p>\n
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