{"id":194633,"date":"2020-01-20T06:01:07","date_gmt":"2020-01-19T22:01:07","guid":{"rendered":"\/\/m.iemloyee.com\/?p=194633"},"modified":"2020-01-19T21:01:46","modified_gmt":"2020-01-19T13:01:46","slug":"%e5%8c%97%e4%ba%ac%e5%8c%96%e5%b7%a5%e5%a4%a7%e5%ad%a6nat-commun-%ef%bc%9a%e9%ab%98%e6%80%a7%e8%83%bd%e7%94%98%e6%b2%b9%e6%b0%a2%e8%a7%a3%e7%9a%84%e9%93%82-%e9%93%9c%e5%8d%95%e5%8e%9f%e5%ad%90","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=194633","title":{"rendered":"\u5317\u4eac\u5316\u5de5\u5927\u5b66Nat. Commun.\uff1a\u9ad8\u6027\u80fd\u7518\u6cb9\u6c22\u89e3\u7684\u94c2-\u94dc\u5355\u539f\u5b50\u5408\u91d1\u50ac\u5316\u5242\u754c\u9762\u534f\u540c\u50ac\u5316"},"content":{"rendered":"

\u3010\u80cc\u666f\u3011<\/strong><\/p>\n

\u9009\u62e9\u6027\u5730\u6c22\u89e3\u751f\u7269\u8d28\u884d\u751f\u7269\u7518\u6cb9\u8f6c\u5316\u4e3a\u4e19\u4e8c\u9187\u662f\u751f\u4ea7\u9ad8\u9644\u52a0\u503c\u5316\u5b66\u54c1\u7684\u91cd\u8981\u53cd\u5e94\uff0c\u4f46\u4ecd\u7136\u9762\u4e34\u7740\u5de8\u5927\u7684\u6311\u6218\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u62a5\u9053\u4e86\u4e00\u79cdPtCu\u5355\u539f\u5b50\u5408\u91d1\uff08SAA\uff09\u50ac\u5316\u5242\uff0c\u8be5\u50ac\u5316\u5242\u4e2dPt\u4ee5\u539f\u5b50\u7ea7\u5206\u6563\u5728Cu\u7eb3\u7c73\u7c07\u4e0a\uff0c\u5bf9\u7518\u6cb9\u6c22\u89e3\u52361,2-\u4e19\u4e8c\u9187\u5177\u6709\u663e\u7740\u63d0\u9ad8\u7684\u50ac\u5316\u6027\u80fd\uff08\u4ea7\u7387\uff1a98.8\uff05\uff09\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u5176\u8f6c\u5316\u9891\u7387\u9ad8\u8fbe2.6\u00d7103<\/sup> mol\u7518\u6cb9<\/sub>\u00b7molPtCu\u2013SAA <\/sub>-1<\/sup>\u00b7h-1<\/sup>\uff0c\u636e\u6211\u4eec\u6240\u77e5\uff0c\u4f18\u4e8e\u76ee\u524d\u62a5\u9053\u7684\u591a\u76f8\u91d1\u5c5e\u50ac\u5316\u5242\u3002\u539f\u4f4d\u5b9e\u9a8c\u7814\u7a76\u548c\u7406\u8bba\u8ba1\u7b97\u5747\u8bc1\u5b9e\u4e86PtCu\u2013SAA\u7684PtCu\u754c\u9762\u4f4d\u70b9\u662f\u8be5\u53cd\u5e94\u7684\u672c\u5f81\u6d3b\u6027\u4f4d\u70b9\uff0c\u5176\u4e2d\u5355\u4e2aPt\u539f\u5b50\u4fc3\u8fdb\u4e86\u4e2d\u95f4C\u2013H\u952e\u7684\u65ad\u88c2\uff0c\u800c\u672b\u7aefC\u2013O\u952e\u5219\u5728\u76f8\u90bb\u7684Cu\u539f\u5b50\u4e0a\u53d1\u751f\u89e3\u79bb\u5438\u9644\u3002\u8fd9\u79cd\u57fa\u4e8ePtCu-SAA\u7684\u754c\u9762\u534f\u540c\u50ac\u5316\u4f5c\u7528\u6539\u53d8\u4e86\u53cd\u5e94\u8def\u5f84\uff0c\u964d\u4f4e\u4e86\u6d3b\u5316\u80fd\uff0c\u53ef\u4ee5\u6269\u5c55\u5230\u5176\u4ed6\u8d35\u91d1\u5c5e\u5408\u91d1\u4f53\u7cfb\u3002<\/p>\n

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

\u8fd1\u671f\uff0c\u5317\u4eac\u5316\u5de5\u5927\u5b66\u536b\u654f\u3001\u5f20\u6b23\u3001\u6d2a\u5d27\u548c\u4e2d\u56fd\u79d1\u5b66\u9662\u9ad8\u80fd\u7269\u7406\u7814\u7a76\u6240\u90d1\u9ece\u8363\uff08\u5171\u540c\u901a\u8baf\u4f5c\u8005\uff09<\/strong>\u7b49\u4eba\u5728Nature Communications<\/strong>\u4e0a\u53d1\u8868\u4e86\u9898\u4e3a\u201cPlatinum\u2013copper single atom alloy catalysts with high performance towards glycerol hydrogenolysis\u201d<\/strong>\u7684\u7814\u7a76\u8bba\u6587\u3002\u8be5\u7814\u7a76\u57fa\u4e8e\u6c34\u6ed1\u77f3\u524d\u4f53\uff08CuMgAl-LDH\uff09\u7684\u7ed3\u6784\u8f6c\u53d8\uff0c\u7136\u540e\u901a\u8fc7\u7535\u7f6e\u6362\u53cd\u5e94\u5c06Pt\u5355\u539f\u5b50\u5f15\u5165Cu\u7eb3\u7c73\u56e2\u7c07\u8868\u9762\uff0c\u8bbe\u8ba1\u5e76\u5408\u6210\u4e86PtCu\u5355\u539f\u5b50\u5408\u91d1\uff08PtCu-SAA\uff09\u50ac\u5316\u5242\u3002\u4e00\u7cfb\u5217\u7684\u8868\u5f81\uff0c\u5305\u62ecAC-HAADF-STEM\uff0c\u539f\u4f4dCO-DRIFTS\u548c\u539f\u4f4dEXAFS\u8bc1\u5b9e\u4e86SAA\u7684\u5f62\u6210\uff0c\u5176\u4e2dPt\u539f\u5b50\u88abCu\u539f\u5b50\u5b8c\u5168\u9694\u79bb\u5e76\u4e0eCu\u5f62\u6210\u5408\u91d1\u3002PtCu-SAA\u5728\u7518\u6cb9\u6c22\u89e3\u62101,2-\u4e19\u4e8c\u9187\u65b9\u9762\u8868\u73b0\u51fa\u4f18\u5f02\u50ac\u5316\u6027\u80fd\uff08\u8f6c\u5316\u7387\uff1a99.6\uff05\uff1b\u9009\u62e9\u6027\uff1a99.2\uff05\uff09\u3002\u6700\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0cPtCu\u2013SAA\u7684\u8f6c\u6362\u9891\u7387\uff08TOF\uff09\u503c\u9ad8\u8fbe2.6\u00d7103<\/sup> mol\u7518\u6cb9<\/sub>\u00b7molPtCu\u2013SAA <\/sub>-1<\/sup>\u00b7h-1<\/sup>\uff0c\u4f18\u4e8e\u76ee\u524d\u6240\u62a5\u9053\u7684\u975e\u5747\u76f8\u50ac\u5316\u5242\u3002\u6b64\u5916\uff0c\u539f\u4f4d\u5b9e\u9a8c\u7814\u7a76\u548c\u7406\u8bba\u8ba1\u7b97\u5747\u8bc1\u5b9ePt-Cu\u754c\u9762\u4f4d\u70b9\u662f\u672c\u5f81\u6d3b\u6027\u4e2d\u5fc3\uff1a\u5355\u4e2aPt\u539f\u5b50\u4fc3\u8fdb\u7518\u6cb9\u5206\u5b50\u4e2d\u4e2d\u95f4C-H\u952e\u7684\u6d3b\u5316\u5438\u9644\uff0c\u800c\u672b\u7aefC-O\u952e\u7684\u79bb\u89e3\u5438\u9644\u5219\u5728\u76f8\u90bb\u7684Cu\u539f\u5b50\u4e0a\u3002\u56e0\u6b64\uff0c\u4e0e\u4f20\u7edf\u7684\u5355\u91d1\u5c5e\u50ac\u5316\u5242\u76f8\u6bd4\uff0c\u8fd9\u79cd\u754c\u9762\u534f\u540c\u50ac\u5316\u4ee5\u8f83\u4f4e\u7684\u6d3b\u5316\u80fd\u6539\u53d8\u4e86\u53cd\u5e94\u9014\u5f84\u3002\u56e0\u6b64\uff0c\u8fd9\u9879\u5de5\u4f5c\u8bf4\u660e\u4e86\u8bbe\u8ba1SAA\u50ac\u5316\u5242\u4ee5\u4fc3\u8fdb\u591a\u5143\u9187\u6c22\u89e3\u53cd\u5e94\u7684\u6210\u529f\u8303\u4f8b\u3002<\/p>\n

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

\u56fe<\/strong>1.<\/strong> \u7531<\/strong>LDHs<\/strong>\u524d\u4f53\u5408\u6210<\/strong>PtCu-SAA<\/strong>\u5e76\u8fdb\u884c\u8868\u5f81<\/strong><\/p>\n

\"\"<\/p>\n

(a) \u5404\u79cd\u6837\u54c1\u7684\u539f\u4f4dXRD\u56fe\u8c31\uff1b<\/p>\n

(b) PtCu-SAA\u5236\u5907\u7684\u793a\u610f\u56fe\u3002<\/p>\n

\u56fe<\/strong>2.<\/strong> PtCu<\/strong>\u5355\u539f\u5b50\u5408\u91d1\u7684\u9274\u5b9a<\/strong><\/p>\n

\"\"<\/p>\n

PtCu-SAA\u7684 (a) TEM\u56fe\u50cf\u3001(b) HRTEM\u56fe\u50cf\u3001(c) \u00a0AC-HAADF-STEM\u56fe\u50cf\u53ca(d) \u76f8\u5e94\u7684\u653e\u5927\u56fe\u3002<\/p>\n

\u56fe<\/strong>3. PtCu-SAA<\/strong>\u8868\u9762\u7684\u539f\u4f4d\u7ea2\u5916\u5149\u8c31\u7814\u7a76<\/strong><\/p>\n

\"\"<\/p>\n

(a-c) Pt\/MMO\u3001PtCu-SAA\u3001Cu\/MMO\u968f\u65f6\u95f4\u53d8\u5316\u7684\u539f\u4f4dCO-DRIFTS\u8c31\uff1b(d-e) Cu\/MMO\u548cPtCu SAA \u968f\u6e29\u5ea6\u53d8\u5316\u7684CO-DRIFTS\u9ad8\u65af\u62df\u5408\u8c31\uff1b(f) Cu\/MMO\u548cPtCu-SAA\u572825\u2103\u7684\u539f\u4f4dCO-DRIFTS\u8c31\u3002<\/p>\n

\u56fe<\/strong>4. PtCu<\/strong>\u5355\u539f\u5b50\u5408\u91d1\u7684\u8868\u5f81\u4e0e\u9274\u5b9a<\/strong><\/p>\n

\"\"<\/p>\n

(a)\u7684Pt\u6807\u6837\u3001PtCu-SAA\u548cPtO2<\/sub>\u6807\u6837\u7684Pt-L3<\/sub>\u8fb9EXAFS\u5085\u91cc\u53f6\u53d8\u6362\u8c31\u56fe\uff1b(b) Pt\u6807\u6837\u7684EXAFS\u5c0f\u6ce2\u53d8\u6362\u8c31\uff1b(c) PtCu-SAA\u7684\u539f\u4f4dEXAFS\u5c0f\u6ce2\u53d8\u6362\u8c31\u3002<\/p>\n

\u56fe5. \u7518\u6cb9\u6c22\u89e3\u4e3a1,2- PDO\u7684\u53cd\u5e94\u7814\u7a76<\/strong><\/p>\n

\"\"<\/p>\n

PtCu-SAA\u3001Pt\/MMO\u548cCu\/MMO\u5bf9\u7518\u6cb9\u6c22\u89e3\u7684\u6027\u80fd\u8bc4\u4ef7: (a)\u8f6c\u5316\u7387\u4e0e\u53cd\u5e94\u65f6\u95f4\u7684\u5173\u7cfb\uff0c(b) ln (CA0<\/sub> \/ CA<\/sub>)\u4e0e\u53cd\u5e94\u65f6\u95f4\u5173\u7cfb\uff0c(c)\u4ea7\u7269\u9009\u62e9\u6027\u5206\u5e03\u548c (d) TOF\u503c<\/p>\n

\u56fe6. \u6c22\u7684\u79bb\u89e3\u548c\u6ea2\u51fa\u80fd\u529b<\/strong><\/p>\n

\"\"<\/p>\n

(a) N2<\/sub>O\u6c27\u5316\u9884\u5904\u7406\u540ePt\/MMO\u3001PtCu-SAA\u548c Cu\/MMO\u6837\u54c1\u8868\u9762\u7684H2<\/sub>-TPR\u8c31\uff1b(b) Pt\/MMO\u3001PtCu-SAA\u548cCu\/MMO (111)\u9762\u7684H2<\/sub>\u89e3\u79bb\u7684\u52bf\u80fd\u5206\u5e03\u56fe\u3002<\/p>\n

\u56fe<\/strong>7. <\/strong>\u50ac\u5316\u6d3b\u6027\u4e2d\u5fc3\u7684\u9274\u5b9a<\/strong><\/p>\n

\"\"<\/p>\n

Cu\u6807\u6837\u3001Cu2<\/sub>O\u6807\u6837\u3001PtCu-SAA\u548c\u901a\u5165\u7518\u6cb9\u7684SAA\uff08\u7b80\u79f0Gly-SAA\uff09\u7684 (a)Cu-K\u8fb9\u5f52\u4e00\u5316\u7684XANES\u8c31\u56fe\uff0c(b) \u7ecf\u5085\u91cc\u53f6\u53d8\u6362\u7684Cu-K\u8fb9\u8c31\u56fe\uff0c(c) Pt-L3\u8fb9\u5f52\u4e00\u5316\u7684XANES\u8c31\u56fe\uff1b(d)\u7518\u6cb9\u5728PtCu-SAA(111)\u548cCu(111)\u6676\u9762\u4e0a\u7684\u7684\u5438\u9644\u80fd\u3002<\/p>\n

\u56fe<\/strong>8. <\/strong>\u57fa\u4e8e\u539f\u4f4d\u5b9e\u9a8c\u53cd\u5e94\u9014\u5f84\u548c<\/strong>DFT<\/strong>\u8ba1\u7b97<\/strong><\/p>\n

\"\"<\/p>\n

(a) Pt\/MMO\u3001 Cu\/MMO\u548cPtCu-SAA\u50ac\u5316\u5242\u5438\u9644\u7684\u7518\u6cb9\u53ca\u6c14\u6001\u7518\u6cb9\u7684DRIFTS\u8c31\u56fe\uff1b\uff08b\uff09Cu\u548cPtCu-SAA\u8868\u9762\u5438\u9644\u4e2d\u95f4\u4ea7\u7269\u6784\u578b\u3002(c) \u7518\u6cb9\u5728Cu(111)\u8868\u9762\u548cPtCu-SAA(111)\u8868\u9762\u7684\u4e0d\u540c\u4f4d\u70b9\u4e0a\u4e0d\u540c\u53cd\u5e94\u8def\u5f84\u7684\u52bf\u80fd\u56fe\u3002<\/p>\n

\u56fe<\/strong>9. <\/strong>\u53cd\u5e94\u673a\u7406\u7684\u793a\u610f\u56fe<\/strong><\/p>\n

\"\"<\/p>\n

\u5728PtCu-SAA\u50ac\u5316\u5242\u8868\u9762\u7518\u6cb9\u6c22\u89e3\u4e3a1,2- PDO\u7684\u53cd\u5e94\u673a\u7406\u793a\u610f\u56fe\u3002<\/p>\n

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

\u00a0\u00a0\u00a0 \u672c\u6587\u5229\u7528\u75d5\u91cf\u7684Pt\u56fa\u5b9a\u5728\u7ecfLDHs\u524d\u4f53\u62d3\u6251\u8f6c\u53d8\u5f97\u5230\u7684Cu\u7eb3\u7c73\u9897\u7c92\u4e0a\u6784\u7b51\u4e86PtCu-SAA\u3002\u539f\u4f4dCO-DRIFTS\uff0cAC-HAADF-STEM\u548c\u539f\u4f4dEXAFS\u7ed3\u679c\u8bc1\u5b9e\uff0c Pt\u539f\u5b50\u5728Cu\u7eb3\u7c73\u56e2\u7c07\u7684\u8868\u9762\u88ab\u5b8c\u5168\u5b64\u7acb\u5e76\u4e0eCu\u5f62\u6210\u5408\u91d1\u3002PtCu-SAA\u8868\u73b0\u51fa\u4e86Cu\u548cPt\u4e4b\u95f4\u534f\u540c\u50ac\u5316\u7684\u5de8\u5927\u4f18\u52bf\uff0c\u4e0e\u5148\u524d\u62a5\u9053\u7684\u50ac\u5316\u5242\u76f8\u6bd4\uff0c\u8be5\u50ac\u5316\u8868\u73b0\u51fa\u4f18\u5f02\u7684\u7518\u6cb9\u6c22\u89e3\u50ac\u5316\u6027\u80fd\u3002\u5229\u7528\u539f\u4f4d\u8868\u5f81\u548cDFT\u8ba1\u7b97\u76f8\u7ed3\u5408\u7684\u624b\u6bb5\u7814\u7a76\u9a8c\u8bc1\u4e86Pt-Cu\u754c\u9762\u4f4d\u70b9\u662f\u672c\u5f81\u6d3b\u6027\u4e2d\u5fc3\uff0c\u5e76\u4e14\u6c22\u89e3\u53cd\u5e94\u9075\u5faa\u4f4e\u80fd\u9014\u5f84\u3002\u8be5\u6587\u7ae0\u901a\u8fc7\u5408\u7406\u8bbe\u8ba1SAA\u50ac\u5316\u5242\u5728\u539f\u5b50\u5c3a\u5ea6\u4e0a\u63ed\u793a\u4e86\u754c\u9762\u53cc\u91d1\u5c5e\u534f\u540c\u4f5c\u7528\u5e76\u4e3a\u5408\u6210\u53cc\u91d1\u5c5e\u50ac\u5316\u5242\u63d0\u4f9b\u4e86\u6307\u5bfc\u3002\u8fd9\u9879\u5de5\u4f5c\u4e2d\u7684\u5236\u5907\u548c\u65b9\u6cd5\u53ef\u4ee5\u6269\u5c55\u5230\u5236\u5907\u5176\u4ed6\u9ad8\u6027\u80fd\u5355\u539f\u5b50\u5408\u91d1\u57fa\u50ac\u5316\u5242\uff08\u7279\u522b\u662f\u6d89\u53ca\u8d35\u91d1\u5c5e\u7684\u50ac\u5316\u5242\uff09\uff0c\u5e76\u5177\u6709\u5e7f\u6cdb\u7684\u975e\u5747\u76f8\u50ac\u5316\u5e94\u7528\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5<\/p>\n

Platinum\u2013copper single atom alloy catalysts with high performance towards glycerol hydrogenolysis<\/a><\/strong><\/p>\n

\u672c\u6587\u7531luna\u7f16\u8bd1\u4f9b\u7a3f\u3002<\/p>\n

\u6295\u7a3f\u90ae\u7bb1tougao@cailiaoren.com<\/p>\n

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