{"id":224608,"date":"2021-07-19T06:30:08","date_gmt":"2021-07-18T22:30:08","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=224608"},"modified":"2021-07-18T21:36:00","modified_gmt":"2021-07-18T13:36:00","slug":"science%ef%bc%9a%e5%a6%82%e4%bd%95%e8%be%be%e5%88%b0%e4%b8%99%e7%83%af%e5%82%ac%e5%8c%96%e5%90%88%e6%88%90%e7%9a%84%e6%9e%81%e9%99%90%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=224608","title":{"rendered":"Science\uff1a\u5982\u4f55\u8fbe\u5230\u4e19\u70ef\u50ac\u5316\u5408\u6210\u7684\u6781\u9650\uff1f"},"content":{"rendered":"

\u3010\u80cc\u666f\u4ecb\u7ecd\u3011<\/strong><\/p>\n

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

\u8fd1\u65e5\uff0c\u7f8e\u56fd\u5bc6\u6b47\u6839\u5927\u5b66\u7684<\/strong>Suljo Linic<\/strong>\uff08\u901a\u8baf\u4f5c\u8005\uff09<\/strong>\u56e2\u961f\u62a5\u9053\u4e86\u4e00\u79cd\u62c5\u8f7d\u4e8e\u4e8c\u6c27\u5316\u7845\u57fa\u5e95\u4e0a\u7684\u94c2\u9521\u5408\u91d1\u7eb3\u7c73\u9897\u7c92\u50ac\u5316\u5242\uff08Pt1<\/sub>Sn1<\/sub>\/SiO2<\/sub>\uff09\u3002\u8be5\u50ac\u5316\u5242\u7684\u7ec4\u6210\u6bd4\u4f8b\u4e3aPt1<\/sub>Sn1<\/sub>\uff0c\u7c92\u5f84<2 nm\u3002\u7814\u7a76\u663e\u793a\uff0c\u5728\u8fd9\u4e00\u7eb3\u7c73\u9897\u7c92\u7cfb\u7edf\u4e2d\uff0c\u76f8\u8f83\u4e8e\u6c27\u5316\u94dd\u57fa\u5e95\uff0c\u94c2\u9521\u5408\u91d1\uff08PtSn\uff09\u7eb3\u7c73\u9897\u7c92\u4e0e\u4e8c\u6c27\u5316\u7845\u57fa\u5e95\u7684\u76f8\u4e92\u4f5c\u7528\u8f83\u5f31\uff0c\u4ece\u800c\u53ef\u4ee5\u6291\u5236\u91d1\u5c5e\u504f\u6790\u548c\u968f\u540e\u7684\u6c27\u5316\u9521\u76f8\u5f62\u6210\u7684\u884c\u4e3a\u53d1\u751f\u3002\u5229\u7528\u8fd9\u4e00\u4e19\u70f7\u8131\u6c22\u50ac\u5316\u5242\uff0c\u7814\u7a76\u80fd\u591f\u4ee5\u63a5\u8fd1\u70ed\u529b\u5b66\u53cd\u5e94\u5e73\u8861\u6781\u503c\u8fdb\u884c\u50ac\u5316\u53cd\u5e94\uff0c\u5176\u4e19\u70f7\u8f6c\u5316\u7387\u548c\u4ea7\u7269\u4e19\u70ef\u7684\u9009\u62e9\u6027\u53ef\u5206\u522b\u8fbe\u523067%\u548c99%\u3002\u6b64\u5916\uff0c\u5728\u8fd8\u539f\u548c\u50ac\u5316\u64cd\u4f5c\u8fc7\u7a0b\u4e2d\uff0c\u539f\u5b50\u7ea7\u6df7\u5408\u7684\u94c2\u3001\u9521\u524d\u9a71\u4f53\u53ef\u4ee5\u5f97\u5230\u5f88\u597d\u7684\u4fdd\u7559\u3002\u6700\u540e\uff0c\u8fd9\u79cd\u50ac\u5316\u5242\u4e0d\u4f1a\u5f62\u6210\u79ef\u78b3\u6548\u5e94\uff0c\u572830 h\u8fde\u7eed\u50ac\u5316\u53cd\u5e94\u8fc7\u7a0b\u4e2d\u4e5f\u672a\u89c1\u50ac\u5316\u5242\u5931\u6d3b\u3002\u8fd9\u4e9b\u7ed3\u679c\u8868\u660e\u901a\u8fc7\u9009\u62e9\u5408\u9002\u7684\u8f7d\u4f53\u53ef\u4ee5\u5927\u5e45\u63d0\u9ad8\u4e19\u70f7\u8131\u6c22\u7684\u6548\u7387\uff0c\u4ece\u800c\u6539\u5584\u76ee\u524d\u5de5\u4e1a\u50ac\u5316\u8fc7\u7a0b\u4e2d\u5b58\u5728\u7684\u75db\u70b9\u548c\u96be\u9898\u3002\u7814\u7a76\u6210\u679c\u4ee5\u9898\u4e3a\u201cStable and selective catalysts for propane dehydrogenation operating at thermodynamic limit\u201d<\/strong>\u53d1\u5e03\u5728\u56fd\u9645\u8457\u540d\u671f\u520aScience<\/strong>\u4e0a\u3002<\/p>\n

\u3010\u56fe\u6587\u89e3\u8bfb\u3011<\/strong><\/p>\n

\u56fe\u4e00\u3001\u50ac\u5316\u5242\u7684\u4e19\u70f7\u8131\u6c22\u6027\u80fd<\/strong><\/p>\n

\"\"<\/p>\n

\uff08A\uff09\u62c5\u8f7d\u578bPtSn\u50ac\u5316\u5242\u5728\u6709\/\u65e0\u6c22\u6c14\u6dfb\u52a0\u5230\u8fdb\u6599\u88c5\u7f6e\u65f6\u4e19\u70f7\u8f6c\u5316\u4e0e\u65f6\u95f4\u7684\u51fd\u6570\u5173\u7cfb\uff08\u53cd\u5e94\u6e29\u5ea6T<\/em>\u4e3a580\u6444\u6c0f\u5ea6\uff0c\u4e19\u70f7\u5206\u538b\uff08P<\/em>C3<\/sub>H8<\/sub>\uff09\u4e3a0.16\uff0cWHSV\u4e3a4.7 hours\u22121<\/sup>\uff09\uff1b<\/p>\n

\uff08B\uff09\u62c5\u8f7d\u578bPtSn\u50ac\u5316\u5242\u5728\u6709\/\u65e0\u6c22\u6c14\u6dfb\u52a0\u5230\u8fdb\u6599\u88c5\u7f6e\u65f6\u4e19\u70ef\u9009\u62e9\u6027\u4e0e\u65f6\u95f4\u7684\u51fd\u6570\u5173\u7cfb\uff08\u53cd\u5e94\u6e29\u5ea6T<\/em>\u4e3a580\u6444\u6c0f\u5ea6\uff0c\u4e19\u70f7\u5206\u538b\uff08P<\/em>C3<\/sub>H8<\/sub>\uff09\u4e3a0.16\uff0cWHSV\u4e3a4.7 hours\u22121<\/sup>\uff09\uff1b<\/p>\n

\uff08C\uff09\u62c5\u8f7d\u578bPtSn\u50ac\u5316\u5242\u5728\u6709\/\u65e0\u6c22\u6c14\u6dfb\u52a0\u5230\u8fdb\u6599\u88c5\u7f6e\u65f6\u4e19\u70ef\u4ea7\u7387\u4e0e\u65f6\u95f4\u7684\u51fd\u6570\u5173\u7cfb\uff08\u53cd\u5e94\u6e29\u5ea6T<\/em>\u4e3a580\u6444\u6c0f\u5ea6\uff0c\u4e19\u70f7\u5206\u538b\uff08P<\/em>C3<\/sub>H8<\/sub>\uff09\u4e3a0.16\uff0cWHSV\u4e3a4.7 hours\u22121<\/sup>\uff09\uff1b<\/p>\n

\uff08D\uff09\u975e\u7a00\u91ca\u4e19\u70f7\u8131\u6c22\u8fc7\u7a0b\u4e2d\u7684Pt1<\/sub>Sn1<\/sub>\/SiO2<\/sub>\u548cPtSn\/\u03b3-Al2<\/sub>O3<\/sub>\u7684\u50ac\u5316\u6027\u80fd\uff08\u53cd\u5e94\u6e29\u5ea6T<\/em>\u4e3a580\u6444\u6c0f\u5ea6\uff0c\u4e19\u70f7\u5206\u538b\uff08P<\/em>C3<\/sub>H8<\/sub>\uff09\u4e3a1\uff0cWHSV\u4e3a4.7 hours\u22121<\/sup>\uff1b\u4ee5\u6c27\u5316\u94dd\u4e3a\u57fa\u5e95\u65f6\u9521\u94c2\u539f\u5b50\u6bd4\u7387\u4e3a5\uff0c\u4ee5\u4e8c\u6c27\u5316\u7845\u4e3a\u57fa\u5e95\u65f6\u7684\u9521\u94c2\u539f\u5b50\u6bd4\u7387\u4e3a1\uff09\u3002<\/p>\n

 <\/p>\n

\u56fe\u4e8c\u3001<\/strong>Pt1<\/sub>Sn1<\/sub>\/SiO2<\/sub><\/strong>\u50ac\u5316\u5242<\/strong>\u4e0e\u73b0\u6709\u62a5\u9053\u4e19\u70f7\u8131\u6c22\u50ac\u5316\u5242\u7684\u6bd4\u8f83<\/strong><\/p>\n

\"\"<\/p>\n

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 <\/p>\n

 <\/p>\n

\u56fe\u4e09\u3001<\/strong>Pt1<\/sub>Sn1<\/sub>\/SiO2<\/sub><\/strong>\u50ac\u5316\u5242\u8868\u5f81<\/strong><\/p>\n

\"\"<\/p>\n

\uff08A\uff09\u524d\u9a71\u4f53\u6eb6\u6db2\u7684\u7d2b\u5916-\u53ef\u89c1\u5149\u5438\u6536\u8c31\uff08\u63d2\u56fe\u4ece\u4e0a\u81f3\u4e0b\u5206\u522b\u4e3a\u6c2f\u94c2\u9178\u6eb6\u6db2\u3001\u6c2f\u94c2\u9178\u548c\u4e8c\u6c2f\u5316\u9521\u7684\u6df7\u5408\u7269\u7684\u5149\u5b66\u7167\u7247\uff09\uff1b<\/p>\n

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\uff08C\uff09\uff08B\uff09\u4e2d\u94c2\u9521\u7eb3\u7c73\u9897\u7c92\u7684\u7c92\u5f84\u5206\u5e03\u60c5\u51b5\uff1b<\/p>\n

\uff08D\uff09Pt1<\/sub>Sn1<\/sub>\/SiO2<\/sub>\u7684X\u5c04\u7ebf\u884d\u5c04\u60c5\u51b5\u3002<\/p>\n

 <\/p>\n

\u56fe\u56db\u3001<\/strong>Pt1<\/sub>Sn1<\/sub>\/SiO2<\/sub><\/strong>\u50ac\u5316\u5242\u7684\u5316\u5b66\u7ed3\u6784\u8868\u5f81<\/strong><\/p>\n

\u00a0\"\"<\/strong><\/p>\n

\uff08A\uff09\u5438\u9644\u5728Pt1<\/sub>Sn1<\/sub>\/SiO2<\/sub>\u7684\u4e00\u6c27\u5316\u78b3\u7684DRIFTS\u8c31\u5b66\u8868\u5f81\uff1b<\/p>\n

\uff08B\uff09\u8fd8\u539f\u7684Pt1<\/sub>Sn1<\/sub>\/SiO2<\/sub>\u4e2d\u94c2\u76844f\u5149\u7535\u53d1\u5c04\u8c31\uff1b<\/p>\n

\uff08C\uff09\u8fd8\u539f\u7684Pt1<\/sub>Sn1<\/sub>\/SiO2<\/sub>\u4e2d\u9521\u76843d\u5149\u7535\u53d1\u5c04\u8c31\uff1b<\/p>\n

\uff08D\uff09\u5728\u6c22\u6c14\u4e2d\u8fd8\u539f\u540e\uff0cPt1<\/sub>Sn1<\/sub>\/SiO2<\/sub>\u5728\u5ba4\u6e29\u3001\u6c26\u6c14\u4e2d\u6d4b\u91cf\u8ba1\u7b97\u5085\u91cc\u53f6\u53d8\u6362\u7684EXAFS\u6570\u636e\uff1b<\/p>\n

\uff08E\uff09\u5728600\u6444\u6c0f\u5ea6\u8fd8\u539f\u7684Pt1<\/sub>Sn1<\/sub>\/SiO2<\/sub>\u4e2d\u7684Pt LIII<\/sub>-\u8fb9\u754c\u7684XANES\u8c31\u5b66\u8868\u5f81\uff1b<\/p>\n

\uff08F\uff09Pt1<\/sub>Sn1<\/sub>\/SiO2<\/sub>\u3001\u4e8c\u6c27\u5316\u9521\u3001\u9521\u7b94\u4e2d\u9521\u7684K\u8fb9\u754cXANES\u8c31\u5b66\u6570\u636e\u3002<\/p>\n

 <\/p>\n

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

\u7efc\u4e0a\u6240\u8ff0\uff0c\u8be5\u7814\u7a76\u901a\u8fc7\u5408\u6210Pt1<\/sub>Sn1<\/sub>\/SiO2<\/sub>\u4e19\u70f7\u8131\u6c22\u50ac\u5316\u5242\uff0c\u9996\u6b21\u5728\u5b9e\u9a8c\u4e2d\u5b9e\u73b0\u4e86\u5728\u63a5\u8fd1\u53cd\u5e94\u8f6c\u5316\u70ed\u529b\u5b66\u6781\u9650\u6761\u4ef6\u4e0b\u8fbe\u5230\u63a5\u8fd1100 %\u7684\u4e19\u70ef\u9009\u62e9\u6027\u7684\u7814\u7a76\u6210\u679c\u3002\u8fd9\u4e00\u7814\u7a76\u901a\u8fc7\u4f18\u5316\u4f20\u7edf\u4e19\u70f7\u8131\u6c22\u50ac\u5316\u5242\u7684\u62c5\u8f7d\u57fa\u5e95\uff08\u8f7d\u4f53\uff09\u7c7b\u578b\uff0c\u8c03\u63a7\u50ac\u5316\u5242\u5408\u91d1\u7eb3\u7c73\u9897\u7c92\u4e0e\u57fa\u5e95\u4e4b\u95f4\u7684\u76f8\u4e92\u4f5c\u7528\uff0c\u6539\u5584\u4e86\u50ac\u5316\u5242\u7684\u7a33\u5b9a\u6027\uff0c\u4e3a\u63a8\u8fdb\u4e19\u70f7\u8131\u6c22\u7684\u5de5\u4e1a\u5316\u5e94\u7528\u63d0\u4f9b\u4e86\u65b0\u7684\u601d\u8def\u548c\u7b56\u7565\u3002<\/p>\n

 <\/p>\n

\u6587\u732e\u94fe\u63a5\uff1a<\/strong>Stable and selective catalysts for propane dehydrogenation operating at thermodynamic limit<\/a>,<\/strong> Science<\/em>, 2021<\/strong>, DOI: 10.1126\/science.abg7894.<\/p>\n","protected":false},"excerpt":{"rendered":"

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