{"id":196698,"date":"2020-02-25T06:51:21","date_gmt":"2020-02-24T22:51:21","guid":{"rendered":"\/\/m.iemloyee.com\/?p=196698"},"modified":"2020-02-24T18:04:46","modified_gmt":"2020-02-24T10:04:46","slug":"nature-communications%ef%bc%9ac12a7%e7%ac%bc%e7%8a%b6%e4%ba%9a%e7%ba%b3%e7%b1%b3%e8%85%94%e4%bd%93%e5%9b%ba%e5%ae%9apt%e5%8d%95%e5%8e%9f%e5%ad%90%e5%82%ac%e5%8c%96%e5%89%82%e7%94%a8%e4%ba%8e%e8%8a%b3","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=196698","title":{"rendered":"Nature Communications\uff1aC12A7\u7b3c\u72b6\u4e9a\u7eb3\u7c73\u8154\u4f53\u56fa\u5b9aPt\u5355\u539f\u5b50\u50ac\u5316\u5242\u7528\u4e8e\u82b3\u9999\u785d\u57fa\u5316\u5408\u7269\u9009\u62e9\u6027\u52a0\u6c22\u53cd\u5e94"},"content":{"rendered":"
\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n 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\u9499\u94dd\u77f3 (12CaO\u00b77Al2<\/sub>O3<\/sub>, \u7b80\u5199\u4e3aC12A7)\uff0c\u4e00\u79cd\u7c7b\u4f3c\u4e8e\u6c34\u6ce5\u7684\u666e\u901a\u7269\u8d28\uff0c\u7531\u5730\u58f3\u4e2d\u6781\u4e3a\u4e30\u5bcc\u4e14\u5ec9\u4ef7\u7684\u5143\u7d20Ca\u548cAl\u7ec4\u6210\u3002C12A7\u7684\u7ed3\u6784\u5f0f\u8868\u793a\u4e3a[Ca24<\/sub>Al28<\/sub>O64<\/sub>]4+<\/sup>+2O2-<\/sup>\uff0c\u5176\u4e2d\u62ec\u53f7\u90e8\u5206\u4ee3\u8868\u5e26\u6b63\u7535\u8377\u7684\u9aa8\u67b6\uff0c\u4e24\u4e2a\u81ea\u7531\u6c27\u79bb\u5b50\uff08O2-<\/sup>\uff09\u4e0e\u9aa8\u67b6\u4e2dCa2+<\/sup>\u914d\u4f4d\u3002\u4ece\u7ed3\u6784\u4e0a\u5206\u6790\uff0cC12A7\u662f\u7531\u5f88\u591a\u5e26\u6709\u6b63\u7535\u8377\uff08+1\/3\uff09\u7684\u4e9a\u7eb3\u7c73\u5c3a\u5ea6\u7684\u201c\u7b3c\u5b50\u201d\u7d27\u5bc6\u5806\u79ef\u800c\u6210\uff0c\u7814\u7a76\u8868\u660e\uff0c\u9ad8\u6bd4\u8868\u9762\u7684C12A7\u5176\u8868\u9762\u5177\u6709\u5927\u91cf\u7834\u635f\u7684\u201c\u7b3c\u5b50\u201d\uff0c\u88ab\u89c6\u4e3a\u5f00\u53e3\u7684\u7b3c\u72b6\u4e9a\u7eb3\u7c73\u8154\u4f53\uff0c\u8fd9\u4e9b\u5e26\u6b63\u7535\u7684\u4e9a\u7eb3\u7c73\u8154\u4f53\u5185\u5f84\u7ea6\u4e3a0.4 nm\uff0c\u6070\u597d\u63a5\u8fd1\u4e8e\u4e00\u4e2a\u91d1\u5c5e\u5355\u539f\u5b50\u7684\u5c3a\u5bf8\uff0c\u56e0\u6b64\u53ef\u4ee5\u5229\u7528C12A7\u8868\u9762\u4e9a\u7eb3\u7c73\u8154\u4f53\u72ec\u7279\u7684\u9650\u57df\u6548\u5e94\uff0c\u907f\u514d\u91d1\u5c5e\u5355\u539f\u5b50\u7684\u56e2\u805a\u548c\u957f\u5927\uff0c\u4ece\u800c\u5236\u5907\u5f97\u5230\u7a33\u5b9a\u7684\u5355\u539f\u5b50\u50ac\u5316\u5242\u3002<\/p>\n \u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n \u6700\u8fd1\uff0c\u65e5\u672c\u4e1c\u4eac\u5de5\u4e1a\u5927\u5b66\u5143\u7d20\u6218\u7565\u7814\u7a76\u4e2d\u5fc3\u53f6\u5929\u5357(Tian-Nan Ye)\u52a9\u7406\u6559\u6388\u4e0e\u7ec6\u91ce\u79c0\u96c4\uff08Hideo Hosono\uff09\u6559\u6388\u548c\u534e\u4e2d\u79d1\u6280\u5927\u5b66\u8096\u6cfd\u6587(Zewen Xiao)\u6559\u6388<\/strong>\u5408\u4f5c\uff0c\u901a\u8fc7\u7406\u8bba\u9884\u6d4b\u548c\u5b9e\u9a8c\u8bbe\u8ba1\u76f8\u7ed3\u5408\u7684\u65b9\u5f0f\uff0c\u5236\u5907\u5f97\u5230\u4e86C12A7\u7b3c\u72b6\u4e9a\u7eb3\u7c73\u8154\u4f53\u56fa\u5b9aPt\u5355\u539f\u5b50\u50ac\u5316\u5242\uff0c\u8be5\u50ac\u5316\u5242\u5728\u82b3\u9999\u785d\u57fa\u5316\u5408\u7269\u9009\u62e9\u6027\u52a0\u6c22\u53cd\u5e94\u4e2d\u663e\u793a\u4e86\u4f18\u5f02\u7684\u50ac\u5316\u6d3b\u6027\u548c\u9009\u62e9\u6027\u3002\u8be5\u5de5\u4f5c\u8fd1\u65e5\u4ee5\u9898\u4e3a\u201cStable single platinum atoms trapped in sub-nanometer cavities in 12CaO\u00b77Al2<\/sub>O3<\/sub> for chemoselective hydrogenation of nitroarenes<\/strong>\u201d\u53d1\u8868\u5728\u77e5\u540d\u671f\u520aNature Communications <\/strong>\u4e0a\u3002<\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n \u56fe1 <\/strong>Pt<\/strong>\/C12A7<\/strong>\u7406\u8bba\u8ba1\u7b97\u548c\u5236\u5907\u7b56\u7565<\/strong><\/p>\n (a\uff0cb) Pt\u5355\u539f\u5b50\u5728C12A7\uff08001\uff09\u9762\u7684\u5438\u9644\u4f4d\u70b9\u4ee5\u53ca\u5bf9\u5e94\u7684\u5438\u9644\u80fd\u91cf\u3002<\/p>\n (c\uff0cd) Pt\u5355\u539f\u5b50\u5728C12A7\uff08001\uff09\u9762\u6700\u7a33\u5b9a\u7684\u5438\u9644\u4f4d\u70b9\u7684\u4fef\u89c6\u56fe\u548c\u4fa7\u89c6\u56fe\u3002<\/p>\n (e) \u00a0\u00a0\u00a0Pt\u5355\u539f\u5b50\u8d1f\u8f7dC12A7\u50ac\u5316\u5242\u7684\u5236\u5907\u8fc7\u7a0b\u793a\u610f\u56fe\u3002<\/p>\n \u56fe2 <\/strong>Pt<\/strong>\/C12A7<\/strong>\u5355\u539f\u5b50\u50ac\u5316\u5242\u7684\u8868\u5f81\u548c\u5bf9\u6bd4\u5206\u6790<\/strong><\/p>\n (a) 0.1Pt\/C12A7\u5355\u539f\u5b50\u50ac\u5316\u5242\u7684HAADF-STEM\u7167\u7247\u3002<\/p>\n (b) 0.1Pt\u8d1f\u8f7d\u4e0d\u540c\u8f7d\u4f53: C12A7\uff0cCaO\uff0cAl2<\/sub>O3<\/sub>\u7684EXAFS\u8c31\u56fe\u3002<\/p>\n (c) \u4e0d\u540cPt\u524d\u9a71\u7269: K2<\/sub>PtCl4<\/sub>, Pt(acac)2<\/sub>\u5236\u5907\u76840.1Pt\/C12A7\u7684EXAFS\u8c31\u56fe\u3002<\/p>\n (d) \u4e0d\u540c\u70ed\u8fd8\u539f\u6e29\u5ea6\u4ee5\u53ca\u4e0d\u540cPt\u524d\u9a71\u7269: K2<\/sub>PtCl4<\/sub>, Pt(acac)2<\/sub>\u5236\u5907\u76840.1Pt\/C12A7\u7684EXAFS\u8c31\u56fe\u3002<\/p>\n \u56fe3 CO2<\/sub>-TPD\u8868\u5f81<\/strong><\/p>\n<\/a><\/p>\n
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