{"id":228852,"date":"2021-10-28T06:08:20","date_gmt":"2021-10-27T22:08:20","guid":{"rendered":"\/\/m.iemloyee.com\/?p=228852"},"modified":"2021-10-27T21:08:35","modified_gmt":"2021-10-27T13:08:35","slug":"%e4%b8%ad%e7%a7%91%e5%a4%a7%e8%b7%af%e5%86%9b%e5%b2%ad-%e6%9d%8e%e5%be%ae%e9%9b%aanature-catalysis-%e5%85%bc%e5%85%b7%e6%b4%bb%e6%80%a7%e9%80%89%e6%8b%a9%e6%80%a7%e7%9a%84%e5%8f%8c%e9%87%91%e5%b1%9e","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=228852","title":{"rendered":"\u4e2d\u79d1\u5927\u8def\u519b\u5cad\/\u674e\u5fae\u96eaNature Catalysis: \u517c\u5177\u6d3b\u6027\u9009\u62e9\u6027\u7684\u53cc\u91d1\u5c5e\u5355\u5c42\u50ac\u5316\u5242"},"content":{"rendered":"

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

\u4e8b\u5b9e\u8868\u660e\uff0c\u91d1\u5c5e\u7eb3\u7c73\u9897\u7c92\uff08NP\uff09\u50ac\u5316\u5242\u5df2\u7ecf\u5e7f\u6cdb\u7528\u4e8e\u5404\u79cd\u50ac\u5316\u53cd\u5e94\uff0c\u5305\u62ec\u5316\u5b66\u7cbe\u70bc\uff0c\u6c7d\u8f66\u5c3e\u6c14\u5904\u7406\u548c\u751f\u7269\u8d28\u8f6c\u5316\u3002\u7eb3\u7c73\u5c3a\u5ea6\u8303\u56f4\u5185\u7c92\u5f84\u7684\u53d8\u5316\u5bf9NPs\u7684\u51e0\u4f55\u7ed3\u6784\u53ca\u5176\u7531\u4e8e\u663e\u8457\u7684\u91cf\u5b50\u6548\u5e94\u800c\u4ea7\u751f\u7684\u56fa\u6709\u7535\u5b50\u7ed3\u6784\u4ea7\u751f\u7740\u91cd\u5927\u5f71\u54cd\u3002NPs \u7684\u51e0\u4f55\u548c\u7535\u5b50\u7ed3\u6784\u7684\u72ec\u7279\u7279\u5f81\u548c\u6781\u5927\u7684\u7075\u6d3b\u6027\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5927\u7684\u76f8\u7a7a\u95f4\u6765\u5f71\u54cd\u5316\u5b66\u952e\u7684\u65ad\u88c2\u548c\u5f62\u6210\uff0c\u8fd9\u4ece\u6839\u672c\u4e0a\u63a8\u52a8\u4e86\u7eb3\u7c73\u50ac\u5316\u5242\u7684\u53d1\u5c55\u3002\u7136\u800c\uff0c\u51e0\u4f55\u548c\u7535\u5b50\u7ed3\u6784\u4ee5\u53ca\u7c92\u5f84\u7684\u540c\u65f6\u53d8\u5316\u901a\u5e38\u4f1a\u5bfc\u81f4\u8bb8\u591a\u50ac\u5316\u53cd\u5e94\u4e2d\u7684\u6d3b\u6027-\u9009\u62e9\u6027\u6743\u8861\uff0c\u4ece\u800c\u63a9\u76d6\u4e86\u4f18\u5316\u7eb3\u7c73\u50ac\u5316\u5242\u6027\u80fd\u7684\u52aa\u529b\u3002\u53cc\u91d1\u5c5e\u50ac\u5316\u5242\u63d0\u4f9b\u4e86\u4e00\u4e2a\u4e0d\u540c\u7684\u7ef4\u5ea6\uff0c\u901a\u8fc7\u50ac\u5316\u7684\u7279\u5f81\u5e94\u53d8\u548c\u914d\u4f53\u6548\u5e94\u6765\u8c03\u6574\u51e0\u4f55\u548c\u7535\u5b50\u7279\u6027\u3002\u5bfc\u81f4\u53cc\u91d1\u5c5e\u50ac\u5316\u5242\u76f8\u5bf9\u4e8e\u5355\u91d1\u5c5e\u7eb3\u7c73\u7c92\u5b50\u7684\u6d3b\u6027\u548c\u9009\u62e9\u6027\u53d8\u5316\u7684\u6027\u8d28\uff0c\u5bf9\u4e8e\u5408\u7406\u8bbe\u8ba1\u65b0\u50ac\u5316\u5242\u5f88\u91cd\u8981\uff0c\u4f46\u5c1a\u672a\u6df1\u5165\u63a2\u8ba8\u3002\u52a0\u6c22\u53cd\u5e94\u662f\u4e00\u7c7b\u91cd\u8981\u548c\u5e94\u7528\u5e7f\u6cdb\u7684\u91d1\u5c5e\u50ac\u5316\u53cd\u5e94\uff0c\u5c3d\u7ba1\u51e0\u5341\u5e74\u6765\u8fdb\u884c\u4e86\u5927\u91cf\u7814\u7a76\uff0c\u4f46\u901a\u5e38\u90fd\u4ee5\u727a\u7272\u6d3b\u6027\u4e3a\u4ee3\u4ef7\u5b9e\u73b0\u9ad8\u9009\u62e9\u6027\u3002\u7279\u522b\u662f\uff0c\u5728\u9ad8\u6d3b\u6027\u4e0b\u5b9e\u73b0\u9ad8\u5316\u5b66\u9009\u62e9\u6027\u662f\u4e00\u4e2a\u5de8\u5927\u7684\u6311\u6218\uff0c\u5176\u7ade\u4e89\u6027\u529f\u80fd\u53d6\u4ee3\u57fa\u7684\u52a0\u6c22\u53ef\u4ee5\u540c\u65f6\u53d1\u751f\u3002\u7528\u786b\u9187\u7b49\u6dfb\u52a0\u5242\u90e8\u5206\u6bd2\u5316\u91d1\u5c5e\u4f4d\u70b9\u662f\u53e6\u4e00\u79cd\u63d0\u9ad8\u9009\u62e9\u6027\u7684\u6709\u6548\u65b9\u6cd5\uff0c\u4f46\u518d\u6b21\u663e\u8457\u964d\u4f4e\u4e86\u5176\u6d3b\u6027\u3002\u5230\u76ee\u524d\u4e3a\u6b62\uff0c\u8fd9\u4e9b\u65b9\u6cd5\u90fd\u6ca1\u6709\u540c\u65f6\u5b9e\u73b0\u9ad8\u5316\u5b66\u9009\u62e9\u6027\u548c\u9ad8\u6d3b\u6027<\/strong>\u3002<\/p>\n

\u8fd1\u65e5\uff0c\u4e2d\u56fd\u79d1\u5b66\u6280\u672f\u5927\u5b66\u8def\u519b\u5cad\u6559\u6388<\/strong>\u548c<\/strong>\u674e\u5fae\u96ea\u6559\u6388<\/strong>\uff08<\/strong>\u5171\u540c<\/strong>\u901a\u8baf\u4f5c\u8005\uff09<\/strong>\u901a\u8fc7\u5728\u8f83\u5927Au\u7eb3\u7c73\u9897\u7c92\u4e0a\u7cbe\u786e\u63a7\u5236\u7684Pt\u5355\u5c42\u6c89\u79ef\uff0c\u6253\u7834\u4e86Pt\u50ac\u5316\u5364\u4ee3\u785d\u57fa\u82ef\u5316\u5b66\u9009\u62e9\u6027\u6c22\u5316\u4e2d\u7c92\u5f84\u7684\u6d3b\u6027-\u9009\u62e9\u6027\u6743\u8861\uff0c\u4e0d\u4ec5\u8868\u73b0\u51fa\u4f18\u5f02\u7684\u50ac\u5316\u6d3b\u6027\uff0c\u800c\u4e14\u5728\u6e29\u548c\u6761\u4ef6\u4e0b\u5bf9\u5364\u4ee3\u82ef\u80fa\u5177\u670999%\u7684\u9009\u62e9\u6027\u3002\u7814\u7a76\u8868\u660e\uff0c\u9ad8\u50ac\u5316\u6d3b\u6027\u6765\u81ea\u4e8ePt\u6676\u683c\u81a8\u80c0\u548c\u914d\u4f53\u6548\u5e94\u6240\u5f15\u8d77\u94c25d\u5e26\u4e2d\u5fc3\u7684\u4e0a\u79fb\uff0c\u800c\u9ad8\u9009\u62e9\u6027\u662f\u7531\u4e8e\u5728\u5927\u9897\u7c92\u4e0a\u66b4\u9732\u66f4\u591a\u7684\u5e73\u53f0\u4f4d\u70b9\u5f15\u8d77\u7684\u3002<\/p>\n

\u5177\u4f53\u800c\u8a00\uff0c\u5728\u5bf9Pt\/SiO2<\/sub>\u50ac\u5316\u7684HNBs\u52a0\u6c22\u65f6\uff0c\u5176\u6d3b\u6027\u548c\u9009\u62e9\u6027\u4e0e1.1\u81f39.3 nm\u7684Pt\u7c92\u5f84\u5448\u73b0\u51fa\u5e73\u8861\u5173\u7cfb\u30022.7nm Pt NPs\u7684\u6d3b\u6027\u6700\u9ad8\uff0c\u4f46\u76f8\u5e94\u7684\u9009\u62e9\u6027\u6700\u4f4e\uff0c\u800c1.1\u548c9.3nmNPs\u7684\u9009\u62e9\u6027\u6700\u9ad8\uff0c\u4f46\u76f8\u5e94\u7684\u6d3b\u6027\u975e\u5e38\u4f4e\uff0c\u8fd9\u4e25\u91cd\u9650\u5236\u4e86\u9ad8\u9009\u62e9\u6027\u7684\u52a0\u6c22\u4ee5\u5236\u5907\u5364\u4ee3\u82ef\u80fa\uff08HAN\uff09\u4ea7\u91cf\u7684\u63d0\u9ad8\u3002\u57fa\u4e8e\u5bc6\u5ea6\u6cdb\u51fd\u7406\u8bba (DFT) \u8ba1\u7b97\u8868\u660e\uff0c\u8fd9\u79cd\u9650\u5236\u6e90\u4e8eHCS\/LCS\u6bd4\u7387\u548cPt NPs\u7684\u8d39\u7c73\u80fd\u7ea7\u7684\u5c3a\u5bf8\u76f8\u5173\u8054\u7cfb\u3002\u5728\u7406\u8bba\u6307\u5bfc\u4e0b\uff0c\u4f7f\u7528\u539f\u5b50\u5c42\u6c89\u79ef (ALD) \u7cbe\u786e\u5236\u5907\u7684\u5177\u6709\u5355\u5c42Pt\u58f3 (Au@1ML-Pt)\u7684\u6838\u58f3\u53cc\u91d1\u5c5eAu@Pt\/SiO2<\/sub>\u50ac\u5316\u5242\u5bf9HANs\u8868\u73b0\u51fa99%\u7684\u9009\u62e9\u6027\u548c\u4f18\u5f02\u7684\u6d3b\u6027\uff0c\u8bc1\u660e\u53cc\u91d1\u5c5e\u5355\u5c42\u50ac\u5316\u5242\u5728\u8fdb\u884c\u52a0\u6c22\u53cd\u5e94\u8c03\u8282\u51e0\u4f55\u548c\u7535\u5b50\u7ed3\u6784\u7684\u5de8\u5927\u4f18\u52bf\u3002\u53cc\u91d1\u5c5e\u5355\u5c42\u6750\u6599\u7684\u51e0\u4f55\u548c\u7535\u5b50\u7279\u6027\u4e0d\u540c\u4e8e\u5355\u91d1\u5c5e\u7eb3\u7c73\u9897\u7c92\u548c\u5408\u91d1\uff0c\u4e3a\u5408\u7406\u8bbe\u8ba1\u5728\u52a0\u6c22\u53cd\u5e94\u4e2d\u5177\u6709\u4f18\u5f02\u6027\u80fd\u7684\u91d1\u5c5e\u50ac\u5316\u5242\u63d0\u4f9b\u4e86\u4e00\u4e2a\u6709\u524d\u666f\u7684\u5e73\u53f0\u3002<\/p>\n

\u76f8\u5173\u7814\u7a76\u6210\u679c\u4ee5\u201cBimetallic monolayer catalyst breaks the activity<\/strong>–<\/strong>selectivity trade-off on metal particle size for efficient chemoselective hydrogenations<\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728Nature Catalysis<\/i><\/em><\/strong>\u4e0a\u3002\"\"<\/p>\n

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

\u56fe<\/b><\/strong>\u4e00<\/b><\/strong>\u3001Pt\/SiO<\/b><\/strong>2<\/b><\/sub><\/strong>\u50ac\u5316\u5242\u5728HNB\u52a0\u6c22<\/b><\/strong>\u53cd\u5e94<\/b><\/strong>\u4e2d\u7684\u50ac\u5316\u6027\u80fd<\/b><\/strong>\"\"<\/b><\/strong><\/p>\n

\uff08a\uff0cb\uff09\u5c3a\u5bf8\u8303\u56f4\u4e3a1.1\u81f39.3 nm\u7528\u4e8ep-CNB\u52a0\u6c22\u7684Pt\u00a0NPs\u7684\u5bf9p-CAN\u548cAN\u7684\u9009\u62e9\u6027\uff0c\u4ee5\u53ca\u76f8\u5e94\u7684TOFs\u548c\u6d3b\u6027\u3002<\/p>\n

\uff08c\uff0cd\uff09\u5c3a\u5bf8\u8303\u56f4\u4e3a1.1\u81f39.3 nm\u7528\u4e8em-CNB\u52a0\u6c22\u7684Pt\u00a0NPs\u7684\u5bf9m-CNB\u548cAN\u7684\u9009\u62e9\u6027\uff0c\u4ee5\u53ca\u76f8\u5e94\u7684TOFs\u548c\u6d3b\u6027\u3002<\/p>\n

\uff08e\uff0cf\uff09\u5c3a\u5bf8\u8303\u56f4\u4e3a1.1\u81f39.3 nm\u7528\u4e8ep-BAN\u52a0\u6c22\u7684Pt\u00a0NPs\u7684\u5bf9p-BNB\u548cAN\u7684\u9009\u62e9\u6027\uff0c\u4ee5\u53ca\u76f8\u5e94\u7684TOFs\u548c\u6d3b\u6027\u3002<\/p>\n

\u56fe<\/b><\/strong>\u4e8c\u3001Pt\u8868\u9762p-CNB\u52a0\u6c22\u53cd\u5e94\u7684\u8ba1\u7b97\u53c2\u6570<\/b><\/strong>\"\"<\/b><\/strong>\uff08a\uff09p-CNB\u3001p-CAN\u548cAN\u5728Pt55<\/sub>\u3001Pt147<\/sub>\u3001Pt\uff08211\uff09\u3001Pt\uff08111\uff09\u548c1ML-Pt\/Au\uff08111\uff09\u4e0a\u7684\u5438\u9644\u80fd\uff1b<\/p>\n

\uff08b\uff09p-CNB\u52a0\u6c22\u5728\u8fd9\u4e94\u4e2a\u8868\u9762\u5f62\u6210p-CAN\u7684\u52bf\u80fd\u8c31<\/p>\n

\u56fe<\/b><\/strong>\u4e09<\/b><\/strong>\u3001Au@Pt\u6838\u58f3\u50ac\u5316\u5242\u7684\u5f62\u8c8c<\/b><\/strong>\u8868\u5f81<\/b><\/strong>\"\"\uff08a\uff095.3 nm-Au\u548cAu@Pt\u53cc\u91d1\u5c5e\u50ac\u5316\u5242\u7684X\u5c04\u7ebf\u884d\u5c04\u5149\u8c31\uff1b<\/p>\n

\uff08b\uff09\u901a\u8fc7CO\u5316\u5b66\u5438\u9644\u6d4b\u5b9a\u7684Au@Pt\u53cc\u91d1\u5c5e\u50ac\u5316\u5242\u7684Pt\u5206\u6563\u4f53\uff1b<\/p>\n

\uff08c\uff0cd\uff09Au@1ML-Pt\u548cAu@2ML-Pt\u50ac\u5316\u5242\u7684\u4ee3\u8868\u6027\u539f\u5b50\u5206\u8fa8\u7387HAADF-STEM \u56fe\u50cf\uff1b<\/p>\n

\uff08e-h\uff09Au@2ML-Pt\u7c92\u5b50\u7684STEM\u56fe\u50cf\u4ee5\u53caAu\u3001Pt\u548cAu+Pt\u4fe1\u53f7\u76f8\u5e94EDS \u6620\u5c04\uff1b<\/p>\n

\uff08i\uff09Au@2ML-Pt\u7684\u7ebf\u6027\u66f2\u7ebf\u3002<\/p>\n

\u56fe<\/b><\/strong>\u56db\u3001Pt\u5355\u91d1\u5c5e\u548cAu@Pt\u6838\u58f3\u50ac\u5316\u5242\u7684\u7535\u5b50\u7279\u6027<\/b><\/strong>\"\"\uff08a\uff09\u6240\u6709Pt\u5355\u91d1\u5c5e\u548cAu@Pt\u53cc\u91d1\u5c5e\u6838\u58f3\u50ac\u5316\u5242\u539f\u4f4d\u8fd8\u539f\u540e\u7684\u539f\u4f4dPt 4f\u00a0XPS\u5149\u8c31\uff1b<\/p>\n

\uff08b\uff09\u7a81\u51fa\u4e86Pt 4f7\/2<\/sub>\u7ed3\u5408\u80fd\u7684\u53d8\u5316\uff1b<\/p>\n

\uff08c\uff09Au@0.5ML-Pt\u3001Au@1ML-Pt\u3001Au@2ML-Pt\u6838\u58f3\u50ac\u5316\u5242\u548cPt\u7b94\u5728Pt\u00a0L-3\u8fb9\u7f18\u7684XANE\u5149\u8c31\uff1b<\/p>\n

\uff08d\uff09Au@0.5ML-Pt\u3001Au@1ML-Pt\u3001Au@2ML-Pt\u53cc\u91d1\u5c5e\u50ac\u5316\u5242\u548cAu\/SiO2<\/sub>\u50ac\u5316\u5242\u4e0aCO\u5316\u5b66\u5438\u9644\u7684\u6f02\u79fb\u3002<\/p>\n

\u56fe<\/b><\/strong>\u4e94<\/b><\/strong>\u3001<\/b><\/strong>Pt<\/b><\/strong>\u57fa\u50ac\u5316\u5242\u5728p-CNB\u5316\u5b66\u9009\u62e9\u6027\u52a0\u6c22\u4e2d\u7684\u50ac\u5316\u6027\u80fd<\/b><\/strong>\u5bf9\u6bd4<\/b><\/strong>\"\"<\/p>\n

\uff08a\uff092.7 nm-Pt\u548c5.3 nm-Au\u5355\u91d1\u5c5e\u50ac\u5316\u5242\u5bf9p-CAN\u7684\u9009\u62e9\u6027\u548cAu@Pt\u6838-\u58f3\u548cAuPt \u5408\u91d1\u53cc\u91d1\u5c5e\u50ac\u5316\u5242\u7684\u9009\u62e9\u6027\u5bf9\u6bd4\uff1b<\/p>\n

\uff08b\uff09Au@1ML-Pt\u548c2.7 nm-Pt\u50ac\u5316\u5242\u7528\u4e8ep-\u00a0CNB\u52a0\u6c22\u7684Arrhenius\u56fe\uff1b<\/p>\n

\uff08c\uff09Au@1ML-Pt\u7528\u4e8ep-CNB\u3001NB\u548c\u6c2f\u82ef\u7684\u52a0\u6c22\uff1b<\/p>\n

\uff08d\uff09Au@1ML-Pt\u548c2.7 nm-Pt\u50ac\u5316\u5242\u7684\u53ef\u56de\u6536\u6027\u5bf9\u6bd4\uff1b<\/p>\n

\uff08e\uff09Pt\u3001Au\u3001AuPt\u5408\u91d1\u548cAu@Pt\u6838\u58f3\u50ac\u5316\u5242\u4e0ap-CAN\u5f62\u6210\u7387\u7684\u5bf9\u6bd4\uff1b<\/p>\n

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

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\u6587\u732e\u94fe\u63a5\uff1a\u201c<\/strong>Bimetallic monolayer catalyst breaks the activity<\/u><\/strong>–<\/u><\/strong>selectivity trade-off on metal particle size for efficient chemoselective hydrogenations<\/u><\/strong><\/a>\u201d(<\/strong>Nature Catalysis<\/i><\/em><\/strong>\uff0c<\/b><\/strong>202<\/strong>1<\/strong>\uff0c<\/strong>10.1038\/s41929-021-00679-x<\/strong>)<\/strong><\/p>\n

\u672c\u6587\u7531\u6750\u6599\u4ebaCYM\u7f16\u8bd1\u4f9b\u7a3f\u3002\u6b22\u8fce\u5927\u5bb6\u5230\u6750\u6599\u4eba\u5ba3\u4f20\u79d1\u6280\u6210\u679c\u5e76\u5bf9\u6587\u732e\u8fdb\u884c\u6df1\u5165\u89e3\u8bfb\uff0c\u6295\u7a3f\u90ae\u7bb1tougao@cailiaoren.com\u3002<\/p>\n

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

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