{"id":240490,"date":"2022-08-01T06:16:35","date_gmt":"2022-07-31T22:16:35","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=240490"},"modified":"2022-07-31T21:16:55","modified_gmt":"2022-07-31T13:16:55","slug":"%e7%ae%80%e5%8d%95%e6%98%93%e6%8e%a7-%e6%b0%a7%e5%8c%96%e7%89%a9%e8%b4%9f%e8%bd%bd%e7%9a%84sac%e6%96%b0%e7%aa%81%e7%a0%b4","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=240490","title":{"rendered":"\u7b80\u5355\u6613\u63a7-\u6c27\u5316\u7269\u8d1f\u8f7d\u7684SAC\u65b0\u7a81\u7834"},"content":{"rendered":"

\u3010\u5bfc\u8bfb\u3011<\/p>\n

\u5728\u4f20\u7edf\u7684\u7eb3\u7c73\u50ac\u5316\u5242\u4e2d\uff0c\u7eb3\u7c73\u9897\u7c92\u7684\u5c3a\u5bf8\u548c\u5f62\u6001\u901a\u5e38\u968f\u7740\u4e0d\u540c\u7684 MSI\uff08\u91d1\u5c5e-\u8f7d\u4f53\u76f8\u4e92\u4f5c\u7528\uff09\u800c\u53d8\u5316\u3002MSI\u5728\u8d1f\u8f7d\u578b\u91d1\u5c5e\u50ac\u5316\u5242\u7684\u50ac\u5316\u6027\u80fd\uff08\u6d3b\u6027\/\u9009\u62e9\u6027\/\u7a33\u5b9a\u6027\uff09\u65b9\u9762\u8d77\u7740\u5173\u952e\u4f5c\u7528\uff0c\u5bf9\u4e8e\u4f5c\u4e3a\u4e00\u79cd\u65b0\u578b\u975e\u5747\u76f8\u50ac\u5316\u5242\u51fa\u73b0\u7684\u5355\u539f\u5b50\u50ac\u5316\u5242 (SAC) \u5c24\u5176\u5982\u6b64\u3002\u7136\u800c\uff0c\u7531\u4e8e\u6c27\u5316\u7269\u8f7d\u4f53\u7684\u575a\u56fa\u6676\u4f53\u7ed3\u6784\uff0c\u901a\u8fc7\u76f4\u63a5\u8c03\u6574\u914d\u4f4d\u7ed3\u6784\u6765\u8c03\u8282\u6c27\u5316\u7269\u8d1f\u8f7d\u7684 SAC \u4e0a\u7684 MSI \u662f\u76f8\u5f53\u5177\u6709\u6311\u6218\u6027\u7684\u3002<\/p>\n

\u3010\u6210\u679c\u80cc\u666f\u3011<\/p>\n

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\u3010\u6838\u5fc3\u521b\u65b0\u70b9\u3011<\/p>\n

    \n
  1. \u901a\u8fc7\u7b80\u5355\u7684\u6c34\u5904\u7406\u8c03\u6574 Pt \u5355\u539f\u5b50\u7684\u90bb\u4f4d\u73af\u5883\uff0c\u800c\u4e0d\u6539\u53d8 Pt \u539f\u5b50\u7684\u5206\u6563\u6027\u548c\u7a33\u5b9a\u6027\uff0c\u8c03\u8282 Pt SAC \u7684\u5f3a\u5171\u4ef7\u91d1\u5c5e-\u8f7d\u4f53\u76f8\u4e92\u4f5c\u7528 (CMSI)\u3002<\/li>\n
  2. \u6c34\u6d78\u5904\u7406\u53ef\u4ee5\u524a\u5f31 Pt \u548c CoFe2<\/sub>O4<\/sub> \u8f7d\u4f53\u4e4b\u95f4\u7684 CMSI\uff0c\u964d\u4f4e Pt \u7684\u5316\u5b66\u72b6\u6001\uff0c\u4ece\u800c\u4fc3\u8fdb C-H \u952e\u5bf9\u7532\u70f7\u71c3\u70e7\u7684\u6d3b\u5316\u8d85\u8fc7 50 \u500d<\/li>\n
  3. \u8fd9\u79cd\u7b56\u7565\u53ef\u4ee5\u6269\u5c55\u5230\u5176\u4ed6\u5177\u6709 CMSI \u7684\u50ac\u5316\u5242\u7cfb\u7edf\uff0c\u4e3a\u8c03\u8282 SAC \u7684\u50ac\u5316\u6027\u80fd\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u5355\u800c\u6709\u6548\u7684\u9014\u5f84\u3002<\/li>\n<\/ol>\n

    \u3010\u6570\u636e\u6982\u89c8\u3011<\/p>\n

    \"\"<\/p>\n

    \u56fe 1\uff1aHAADF-STEM \u56fe\u50cf\u3002@ NATURE COMMUNICATIONS<\/p>\n

    a<\/strong>,\u00a0b<\/strong>\u00a0Pt1<\/sub>\/CF,\uff1b c<\/strong>,\u00a0d<\/strong>\u00a0Pt1<\/sub>\/CF-W<\/p>\n

    \"\"<\/p>\n

    \u56fe 2\uff1aPt1<\/sub>\/CF \u548c Pt1<\/sub>\/CF-W \u7684 MSI\u3002@ NATURE COMMUNICATIONS<\/p>\n

    a \u7528 He \u5439\u626b CO \u65f6 Pt1<\/sub>\/CF \u548c Pt1<\/sub>\/CF-W \u7684\u65f6\u95f4\u5206\u8fa8 CO-DRIFT \u5149\u8c31\uff1b b Pt 4\u2009f <\/em>XPS \u5149\u8c31\uff1b c H2<\/sub>-TPR \u914d\u7f6e\u6587\u4ef6\uff1b d R \u7a7a\u95f4\u4e2d\u7684\u5085\u91cc\u53f6\u53d8\u6362 k2<\/sup> \u52a0\u6743 EXAFS \u5149\u8c31\u3002<\/p>\n

    \"\"<\/p>\n

    \u56fe 3\uff1a\u7532\u70f7\u71c3\u70e7\u7684\u50ac\u5316\u6d3b\u6027\u3002@NATURE COMMUNICATIONS<\/p>\n

    a Pt1<\/sub>\/CF \u548c Pt1\/CF-W \u4e0a CH4<\/sub> \u7a00\u8584\u71c3\u70e7\u7684\u8d77\u71c3\u66f2\u7ebf\uff1b \u53cd\u5e94\u6761\u4ef6\uff1a0.5\u2009vol% CH4<\/sub>\u300120\u2009vol% O2<\/sub>\u3001N2<\/sub>\uff0c \u6c14\u65f6\u7a7a\u901f(GHSV)\u2009=\u200920,000\u2009ml\/(gcat\u00b7h)\uff0c \u8bef\u5dee\u6761\u4ee3\u8868\u57fa\u4e8e\u56db\u6b21\u91cd\u590d\u70b9\u706b\u5b9e\u9a8c\u7684\u6807\u51c6\u504f\u5dee\uff1b b \u5728 300\u2009\u00b0C \u65f6 Pt1<\/sub>\/CF \u548c Pt1<\/sub>\/CF-W \u4e0a\u7684 CH4<\/sub> \u8f6c\u5316\u7387\u3002<\/p>\n

    \"\"<\/p>\n

    \u56fe 4\uff1aPt \u5355\u539f\u5b50\u5468\u56f4\u7684\u7ed3\u6784\u4fee\u9970\u3002@NATURE COMMUNICATIONS<\/p>\n

    a \u6c34\u5904\u7406\u524d\u7684\u7ed3\u6784\uff0cPt\/CF(110)\uff1b b \u6c34\u5904\u7406\u540e\u7684\u7ed3\u6784\uff0cPt\/CF(110)-W\u3002 BL\uff1aPt-O \u6216 O-H \u952e\u957f\uff0cBO\uff08\u62ec\u53f7\u4e2d\u7684\u6570\u5b57\uff09\uff1aPt-O \u952e\u5e8f\uff1b BL \u548c BO \u5728\u5b83\u4eec\u6240\u5c5e\u7684\u952e\u65c1\u8fb9\u88ab\u5f15\u7528\uff0c\u65b9\u62ec\u53f7\u4e2d\u7684\u6570\u5b57\u662f Pt \u539f\u5b50\u7684\u5df4\u5fb7\u7535\u8377\u3002 \u539f\u5b50\u989c\u8272\uff1aH\uff1a\u767d\u8272\uff0cO\uff1a\u7ea2\u8272\uff0cFe\uff1a\u68d5\u8272\uff0cCo\uff1a\u84dd\u8272\uff0cPt\uff1a\u94f6\u8272\u3002<\/p>\n

     <\/p>\n

    \"\"<\/p>\n

    \u56fe 5\uff1aC-H \u952e\u7684\u6d3b\u5316\u3002@ NATURE COMMUNICATIONS<\/p>\n

    a \u5728 250\u00b0C \u4e0b\u6ce8\u5165 CH4<\/sub> \u65f6 Pt1<\/sub>\/CF \u548c Pt1<\/sub>\/CF-W \u4e0a CO2<\/sub> \u7684\u751f\u6210\uff1b b \u6c34\u5904\u7406\u50ac\u5316\u5242\u524d\u540e CH4<\/sub> \u71c3\u70e7\u5728 Pt\/NiFe2<\/sub>O4<\/sub> \u548c Pt\/Fe2<\/sub>O3<\/sub> \u4e0a\u7684\u8d77\u71c3\u66f2\u7ebf\uff1b \u53cd\u5e94\u6761\u4ef6\uff1a0.5\u2009vol% CH4<\/sub>\u300120\u2009vol% O2<\/sub>\u3001N2<\/sub>\uff1b GHSV\u2009=\u200940,000\u2009ml\/(gcat<\/sub>\u00b7h)\u3002<\/p>\n

     <\/p>\n

    \u3010\u7ed3\u8bba\u3011<\/p>\n

    \u4f5c\u8005\u7684\u7814\u7a76\u8868\u660e\uff0c\u5728\u7b80\u5355\u7684\u6c34\u6d78\u6ce1\u5904\u7406\u540e\uff0c\u5728 Pt1<\/sub>\/CF SAC \u4e2d\u53d1\u73b0 CH4<\/sub> \u71c3\u70e7\u7684\u6d3b\u6027\u663e\u7740\u63d0\u9ad8\u4e86 50 \u500d\u3002\u5b9e\u9a8c\u548c\u6a21\u62df\u4e2d\u66f4\u8be6\u7ec6\u7684\u7814\u7a76\u8868\u660e\uff0c\u4e0d\u662f\u7531\u4e8e\u6c34\u76f4\u63a5\u53c2\u4e0e\u53cd\u5e94\uff0c\u800c\u662f\u7531\u4e8e H+<\/sup> \u5bf9 Pt \u5355\u539f\u5b50\u90bb\u4f4d\u73af\u5883\u7684\u8c03\u8282\uff0c\u5bfc\u81f4 Pt \u548c CoFe2<\/sub>O4<\/sub> \u5c16\u6676\u77f3\u4e4b\u95f4\u7684 CMSI \u51cf\u5f31\uff0c\u589e\u52a0\u50ac\u5316\u6d3b\u6027\u3002\u8fd9\u9879\u5de5\u4f5c\u63d0\u4f9b\u4e86\u4e00\u79cd\u4fc3\u8fdb SAC \u6d3b\u6027\u7684\u65b0\u7b56\u7565\uff0c\u901a\u8fc7\u8c03\u6574\u91d1\u5c5e\u539f\u5b50\u7684\u90bb\u4f4d\u73af\u5883\u7ed3\u6784\u6765\u8c03\u6574 MSI\uff0c\u4fc3\u8fdb\u4e86\u5fae\u89c2\u7ed3\u6784\u6d3b\u6027\u8c03\u8282\u7684\u65b0\u53d1\u5c55\uff0c\u4e3a\u8c03\u8282\u6c27\u5316\u7269\u8d1f\u8f7d\u7684 SAC \u4e0a\u7684 MSI\u505a\u51fa\u4e86\u7a81\u7834\u3002<\/p>\n

     <\/p>\n

     <\/p>\n

    \u6587\u732e\u94fe\u63a5\uff1ahttps:\/\/doi.org\/10.1038\/s41467-022-31966-1<\/p>\n","protected":false},"excerpt":{"rendered":"

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