{"id":225033,"date":"2021-07-27T12:00:22","date_gmt":"2021-07-27T04:00:22","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=225033"},"modified":"2021-07-27T11:41:56","modified_gmt":"2021-07-27T03:41:56","slug":"%e3%80%90%e5%9b%bd%e5%a4%96%e9%80%9a%e8%ae%af%e6%97%a0%e9%9c%80%e6%a0%a1%e7%a8%bf%e3%80%91mit%e6%9c%80%e6%96%b0nat-catal-%ef%bc%9a%e8%b0%83%e8%8a%82%e9%92%99%e9%92%9b%e7%9f%bf%e6%b0%a7%e6%b4%bb","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=225033","title":{"rendered":"MIT\u6700\u65b0Nat. Catal.\uff1a\u8c03\u8282\u9499\u949b\u77ff\u6c27\u6d3b\u6027\u53ef\u63d0\u9ad8\u6c2e\u6c27\u5316\u5408\u7269\u7684\u6c27\u5316\u548c\u8fd8\u539f\u52a8\u529b\u5b66"},"content":{"rendered":"

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

\u4e00\u76f4\u4ee5\u6765\uff0c\u9499\u949b\u77ff\u51ed\u501f\u53ef\u8c03\u7684\u7269\u5316\u7279\u6027\u548c\u50ac\u5316\u6d3b\u6027\u88ab\u8ba4\u4e3a\u662f\u6c2e\u6c27\u5316\u7269\uff08NOx<\/sub><\/em>\uff09\u6c27\u5316\u7684\u65b0\u5174\u7b56\u7565\u3002\u5bf9\u4e8e\u8fd9\u4e00\u7b56\u7565\u6765\u8bf4\uff0c\u7ecf\u5178\u7684\u6750\u6599\u8bbe\u8ba1\u5173\u6ce8\u4e8eB\u4f4d\u70b9\u9633\u79bb\u5b50\u7684\u9009\u62e9\uff0c\u51ed\u501f\u8868\u9762B\u4f4d\u70b9\u50ac\u5316\u4e00\u6c27\u5316\u6c2e\u6c27\u5316\u52a8\u529b\u5b66\u4ee5\u671f\u589e\u5f3a\u4e00\u6c27\u5316\u6c2e\u7684\u6c27\u5316\u6d3b\u6027\u3002\u8fd9\u4e9b\u91d1\u5c5e\u4f4d\u70b9\u50ac\u5316\u4e3b\u8981\u901a\u8fc7Eley\u2013Rideal\u3001\u7c7bLangmuir\u2013Hinshelwood\u6216\u8005\u7c7bMars\u2013van-Krevelen\u901a\u8def\u8fdb\u884c\u3002\u5229\u7528\u8fd9\u4e9b\u57fa\u672c\u539f\u7406\uff0c\u901a\u8fc7\u5bf9\u5438\u9644\u5728\u91d1\u5c5e\u4f4d\u70b9\u4e0a\u7684\u4e8c\u6c27\u5316\u6c2e\u4e2d\u95f4\u4f53\u8fdb\u884c\u53bb\u7a33\u5b9a\u4f5c\u7528\u53ef\u589e\u52a0\u4e8c\u6c27\u5316\u6c2e\u89e3\u5438\u9644\u52a8\u529b\u5b66\uff0c\u4ece\u800c\u63d0\u5347\u4e00\u6c27\u5316\u6c2e\u7684\u8f6c\u5316\u6548\u7387\u3002\u7136\u800c\uff0c\u8fd1\u671f\u8fd9\u7c7b\u4e13\u6ce8\u4e8e\u6d3b\u6027\u91d1\u5c5e\u4f4d\u70b9\u7684\u673a\u5236\u5374\u9891\u9891\u53d7\u5230\u6311\u6218\u3002\u8fd9\u4e3b\u8981\u662f\u56e0\u4e3a\u5728La1\u2212x<\/em><\/sub>Srx<\/sub><\/em>CoO3<\/sub>\u4e2d\u5f62\u6210\u6c27-\u7a7a\u7a74\u7684\u6210\u672c\u975e\u5e38\u9ad8\uff0c\u4e0d\u652f\u6301\u4e00\u6c27\u5316\u6c2e\u7684\u9ad8\u6548\u6c27\u5316\u3002\u56e0\u6b64\uff0c\u91c7\u7528\u4e00\u7cfb\u5217\u9499\u949b\u77ff\u6750\u6599\u4ee5\u8c03\u63a7\u8868\u9762\u6c27\u6d3b\u6027\u4ee5\u53ca\u89e3\u91ca\u8868\u9762\u6c2e\u6c27\u5316\u7269\u7684\u5438\u9644\u548c\u5b58\u50a8\u3001\u4e00\u6c27\u5316\u6c2e\u6c27\u5316\u52a8\u529b\u5b66\u80cc\u540e\u7684\u53cd\u5e94\u673a\u5236\u7406\u8bba\u4f9d\u7136\u610f\u4e49\u91cd\u5927\u3002<\/p>\n

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

\u7f8e\u56fd\u9ebb\u7701\u7406\u5de5\u5b66\u9662\u7684<\/strong>Livia Giordano<\/strong>\u548c<\/strong>Yang Shao-Horn<\/strong>\uff08\u901a\u8baf\u4f5c\u8005\uff09<\/strong>\u8054\u5408\u62a5\u9053\u4e86La1\u2212x<\/em><\/sub>Srx<\/sub><\/em>CoO3<\/sub>\u7684\u8868\u9762\u6c27\u4f4d\u70b9\u5728\u50ac\u5316\u4e00\u6c27\u5316\u6c2e\u6c27\u5316\u4e2d\u7684\u5173\u952e\u4f5c\u7528\u3002\u5728\u8fd9\u4e00\u8fc7\u7a0b\u4e2d\uff0c\u4f5c\u8005\u5728\u5f3a\u5316\u4e00\u6c27\u5316\u6c2e\u5438\u9644\u80fd\u7684\u540c\u65f6\u8fd8\u6700\u5c0f\u5316\u4e86\u785d\u9178\u76d0\u5f62\u6210\u6240\u9020\u6210\u7684\u8868\u9762\u4e2d\u6bd2\u4f5c\u7528\uff0c\u6700\u7ec8\u5f97\u4ee5\u4f18\u5316\u50ac\u5316\u6d3b\u6027\u3002\u7814\u7a76\u5b9a\u4e49\u4e86\u76f8\u5bf9\u4e8e\u8d39\u7c73\u80fd\u7ea7\u6c272p<\/em>-\u5e26\u4e2d\u5fc3\uff0c\u53ef\u4ee5\u6307\u793a\u6c2e\u6c27\u5316\u5408\u7269\u7684\u5438\u9644\u548c\u8868\u9762\u8986\u76d6\u4ee5\u53ca\u4e00\u6c27\u5316\u6c2e\u7684\u6c27\u5316\u52a8\u529b\u5b66\u3002\u5bc6\u5ea6\u6cdb\u51fd\u7406\u8bba\uff08DFT\uff09\u548cX\u5c04\u7ebf\u5149\u7535\u8c31\u5b66\u8868\u5f81\u663e\u793a\uff0c\u4e00\u6c27\u5316\u6c2e\u66f4\u503e\u5411\u4e8e\u5438\u9644\u5728\u8868\u9762\u6c27\u4f4d\u70b9\u3002\u589e\u52a0\u9536\u53d6\u4ee3\u7a0b\u5ea6\u800c\u589e\u52a0\u8868\u9762\u6c27\u6d3b\u6027\u53ef\u5bfc\u81f4\u66f4\u5f3a\u7684\u4e8c\u6c27\u5316\u6c2e\u5438\u9644\u548c\u5b58\u50a8\uff0c\u4ece\u800c\u8fdb\u4e00\u6b65\u5bfc\u81f4\u66b4\u9732\u5728\u4e00\u6c27\u5316\u78b3\u4e2d\u65f6\u5f62\u6210\u66f4\u591a\u7684\u5438\u9644\u7c7b\u6c2e\u7269\u8d28\u548c\u5206\u5b50\u6c2e\u3002\u7531\u6b64\uff0c\u4e00\u6c27\u5316\u6c2e\u6c27\u5316\u52a8\u529b\u5b66\u4e0e\u8868\u9762\u6c27\u6d3b\u6027\u5448\u73b0volcano\u8d8b\u52bf\uff0c\u5373\u5c3d\u7ba1\u5f3a\u5927\u7684\u4e00\u6c27\u5316\u6c2e\u5438\u9644\u5bf9\u8868\u9762\u6c27\u4f4d\u70b9\u5177\u6709\u6bd2\u6027\u4f5c\u7528\uff0c\u589e\u52a0\u4e00\u6c27\u5316\u6c2e\u5438\u9644\u4f9d\u7136\u80fd\u591f\u63d0\u9ad8\u6c27\u5316\u52a8\u529b\u5b66\u3002\u7814\u7a76\u6210\u679c\u4ee5\u9898\u4e3a\u201cRegulating oxygen activity of perovskites to promote NOx oxidation and reduction kinetics\u201d<\/strong>\u53d1\u5e03\u5728\u56fd\u9645\u8457\u540d\u671f\u520aNature Catalysis<\/strong>\u4e0a\u3002<\/p>\n

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

\u56fe\u4e00\u3001<\/strong>La1\u2212x<\/em><\/sub>Srx<\/sub><\/em>CoO3<\/sub><\/strong>\u8868\u9762\u7684\u6c2e\u6c27\u5316\u5408\u7269\u5438\u9644\u80fd<\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09\u7edd\u5bf9\u80fd\u91cf\u6807\u5ea6\u4e0b\u7684\u9499\u949b\u77ff\u7535\u5b50\u7ed3\u6784\u793a\u610f\u56fe\uff1b<\/p>\n

\uff08b\uff09\u6c27-\u7a7a\u7a74\u5f62\u6210\u7684\u5409\u5e03\u65af\u81ea\u7531\u80fd\u3002<\/p>\n

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

\u56fe\u4e8c\u3001\uff08<\/strong>001<\/strong>\uff09\u53d6\u5411<\/strong>La0.8<\/sub>Sr0.2<\/sub>CoO3<\/sub><\/strong>\u4e0a\u4e00\u6c27\u5316\u6c2e\u548c\u6c27\u6c14\u7684<\/strong>AP-XPS<\/strong>\u8868\u5f81<\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09\u6c2e1s\u7684\u539f\u59cb\u7b49\u538b\u5149\u8c31\u7ebf\uff08\u5165\u5c04\u5149\u5b50\u80fd\u91cf\u4e3a735eV\uff09\uff1b<\/p>\n

\uff08b\uff09\u6c2e1s 735eV\u8c31\u7684\u5178\u578b\u53bb\u5377\u79ef\u6570\u636e\uff1b<\/p>\n

\uff08c\uff09\u968f\u7740\u6e29\u5ea6\u63d0\u9ad8\u6240\u89c2\u5bdf\u5230\u7684\u7269\u8d28\u79ef\u5206\u9762\u79ef\u3002<\/p>\n

 <\/p>\n

\u56fe\u4e09\u3001<\/strong>La1\u2212x<\/em><\/sub>Srx<\/sub><\/em>CoO3<\/sub><\/strong>\u8868\u9762\u7684\u4e00\u6c27\u5316\u6c2e\u548c\u6c27\u6c14\u7684\u7b49\u70ed\u548c\u7b49\u538b\u8868\u9762\u53cd\u5e94\u6d3b\u6027<\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09\uff08001\uff09\u53d6\u5411La1\u2212x<\/em><\/sub>Srx<\/sub><\/em>CoO3<\/sub>\u8584\u819c\u7684\u6c2e1s 735eV\u8c31\u5b66\u8868\u5f81\uff1b<\/p>\n

\uff08b\uff09\u2013NO\u2013Ooxide<\/sub>\u7684\u8868\u9762\u6570\u91cf\u4e0e\u8868\u9762\u6c272p<\/em>-\u5e26\u4e2d\u5fc3\u7684\u51fd\u6570\u5173\u7cfb\uff1b<\/p>\n

\uff08c\uff09\u2013NO2<\/sub>\u2013Ooxide<\/sub>\u7684\u8868\u9762\u6570\u91cf\u4e0e\u8868\u9762\u6c272p<\/em>-\u5e26\u4e2d\u5fc3\u7684\u51fd\u6570\u5173\u7cfb\u3002<\/p>\n

 <\/p>\n

\u56fe\u56db\u3001<\/strong>\u4e00\u6c27\u5316\u78b3\u4e2d<\/strong>La1\u2212x<\/em><\/sub>Srx<\/sub><\/em>CoO3<\/sub><\/strong>\u8584\u819c\u4e0a\u7684\u6c2e\u6c27\u5316\u5408\u7269\u8fd8\u539f<\/strong><\/p>\n

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

\uff08a\uff09200\u6444\u6c0f\u5ea6\u3001p<\/em>CO<\/sub> = 25 mTorr\u65f6\u7684La1\u2212x<\/em><\/sub>Srx<\/sub><\/em>CoO3<\/sub>\u7684\u6c2e1s\u8c31\u5b66\uff1b<\/p>\n

\uff08b\uff09\u79ef\u5206\u6c2e\u6c14\u5bc6\u5ea6\u3002<\/p>\n

 <\/p>\n

\u56fe\u4e94\u3001<\/strong>La1\u2212x<\/em><\/sub>Srx<\/sub><\/em>CoO3<\/sub><\/strong>\u4e0a\u4e00\u6c27\u5316\u6c2e\u6c27\u5316\u6d3b\u6027\u548c\u53cd\u5e94\u673a\u5236<\/strong><\/p>\n

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

\uff08a\uff09\u7c89\u672bLa1\u2212x<\/em><\/sub>Srx<\/sub><\/em>CoO3<\/sub>\uff08x<\/em> = 0, 0.2, 0.4 and 0.6\uff09\u7684\u4e00\u6c27\u5316\u78b3\u6c27\u5316\u52a8\u529b\u5b66\uff1b<\/p>\n

\uff08b\uff09\u4e00\u6c27\u5316\u6c2e\u6c27\u5316\u5f62\u6210\u4e8c\u6c27\u5316\u6c2e\u7684TOF\u503c\u4ee5\u53caNO\u2013Ooxide<\/sub>\u548c\u2013NO2<\/sub>\u2013Ooxide<\/sub>\u7684\u79ef\u5206\u5cf0\u5f3a\u4e0e\u6c272p<\/em>-\u5e26\u4e2d\u5fc3\u7684\u51fd\u6570\u5173\u7cfb\uff1b<\/p>\n

\uff08c\uff09\u6c27\u4f4d\u70b9\u4e0a\u7684\u785d\u9178\u76d0\u4ecb\u5bfc\u7684\u4e00\u6c27\u5316\u6c2e\u6c27\u5316\uff1a\u7b2c\u4e00\u6b65\u4e3a\u6c27\u4f4d\u70b9\u4e0a\u4e00\u6c27\u5316\u6c2e\u7684\u5438\u9644\uff08NO\u2013Ooxide<\/sub>\uff09\uff0c\u7b2c\u4e8c\u6b65\u4e3aNO2<\/sub>\u2013Ooxide<\/sub>\u7684\u5f62\u6210\uff0c\u7b2c\u4e09\u6b65\u4e3a\u4e8c\u6c27\u5316\u6c2e\u6c14\u4f53\u7684\u89e3\u5438\u9644\uff1b<\/p>\n

\uff08d\uff09\u6c27\u4f4d\u70b9\u4e0a\u7684\u7a7a\u7a74\u4ecb\u5bfc\u4e00\u6c27\u5316\u6c2e\u6c27\u5316\uff1a\u7b2c\u4e00\u6b65\u4e3a\u6c27\u4f4d\u70b9\u4e0a\u4e00\u6c27\u5316\u6c2e\u7684\u5438\u9644\uff08NO\u2013Ooxide<\/sub>\uff09\uff0c\u7b2c\u4e8c\u6b65\u4e3a\u4e8c\u6c27\u5316\u6c2e\u89e3\u5438\u9644\uff0c\u7b2c\u4e09\u6b65\u4e3a\u7a7a\u7a74\u91cd\u586b\u5145\uff1b<\/p>\n

\uff08e\uff09\uff08c\uff09\u4e2d\u785d\u9178\u76d0\u4ecb\u5bfc\u673a\u5236\u7684\u5409\u5e03\u65af\u81ea\u7531\u80fd\u5206\u6790\uff1b<\/p>\n

\uff08f\uff09\uff08d\uff09\u4e2d\u7a7a\u7a74\u4ecb\u5bfc\u673a\u5236\u7684\u5409\u5e03\u65af\u81ea\u7531\u80fd\u5206\u6790\u3002<\/p>\n

 <\/p>\n

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

\u5728\u8fd9\u9879\u7814\u7a76\u4e2d\uff0c\u4f5c\u8005\u5229\u7528AP-XPS\u3001\u53cd\u5e94\u6d3b\u6027\u6d4b\u91cf\u548cDFT\u7b49\u624b\u6bb5\u8fa8\u522b\u7406\u89e3\u4e86\u8868\u9762\u6c27\u6d3b\u6027\u5728\u94b4\u57fa\u9499\u949b\u77ff\u4e2d\u51b3\u5b9a\u6c2e\u6c27\u5316\u5408\u7269\u8868\u9762\u80fd\u3001\u6c2e\u6c27\u5316\u5408\u7269\u8868\u9762\u5b58\u50a8\u4ee5\u53ca\u4e00\u6c27\u5316\u6c2e\u6c27\u5316\u52a8\u529b\u5b66\u7b49\u65b9\u9762\u7684\u5173\u952e\u4f5c\u7528\u3002\u8fd9\u4e9b\u7814\u7a76\u7ed3\u679c\u4e0d\u4ec5\u9610\u91ca\u4e86\u8868\u9762\u6c27\u6d3b\u6027\u5728\u63a8\u52a8\u6c2e\u6c27\u5316\u5408\u7269\u6c27\u5316\u8fd8\u539f\u53cd\u5e94\u548c\u6c2e\u6c27\u5316\u5408\u7269\u8868\u9762\u5b58\u50a8\u65b9\u9762\u7684\u5fc5\u8981\u89d2\u8272\uff0c\u4e5f\u6709\u52a9\u4e8e\u7406\u89e3\u8868\u9762\u6c27\u4f4d\u70b9\u5728\u751f\u7269\u5b66\u8c03\u8282\u673a\u5236\u548c\u73af\u5883\u5316\u5b66\u5904\u7406\u7b49\u9886\u57df\u7684\u4f5c\u7528\u3002<\/p>\n

 <\/p>\n

\u6587\u732e\u94fe\u63a5\uff1a<\/strong>Regulating oxygen activity of perovskites to promote NOx oxidation and reduction kinetics<\/a>, 2021<\/strong>, DOI: 10.1038\/s41929-021-00656-4.<\/p>\n

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

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