{"id":154093,"date":"2018-09-24T06:40:36","date_gmt":"2018-09-23T22:40:36","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=154093"},"modified":"2018-09-23T09:40:59","modified_gmt":"2018-09-23T01:40:59","slug":"angew-chem-%ef%bc%9a%e5%bf%ab%e9%80%9fx%e5%b0%84%e7%ba%bf%e5%90%b8%e6%94%b6%e5%85%89%e8%b0%b1%e6%b3%95%e6%8f%ad%e7%a4%ba%e5%8f%8c%e9%87%91%e5%b1%9e%e7%ba%b3%e7%b1%b3%e5%82%ac%e5%8c%96%e5%89%82","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=154093","title":{"rendered":"Angew. Chem.\uff1a\u5feb\u901fX\u5c04\u7ebf\u5438\u6536\u5149\u8c31\u6cd5\u63ed\u793a\u53cc\u91d1\u5c5e\u7eb3\u7c73\u50ac\u5316\u5242\u5bff\u547d\u53d8\u5316\u52a8\u529b\u5b66"},"content":{"rendered":"<p><b><\/b><strong><b>\u3010\u5f15\u8a00\u3011<\/b><\/strong><\/p>\n<p>\u7531\u4e8e\u7535\u5b50\u6548\u5e94\u548c\u51e0\u4f55\u6548\u5e94\u7684\u76f8\u4e92\u4f5c\u7528\uff0c\u53cc\u91d1\u5c5e\u50ac\u5316\u5242\u4e0e\u5176\u5355\u91d1\u5c5e\u50ac\u5316\u5242\u76f8\u6bd4\uff0c\u5176\u9009\u62e9\u6027\u3001\u6d3b\u6027\u548c\u7a33\u5b9a\u6027\u90fd\u5927\u5927\u63d0\u9ad8\u3002\u5728\u53cc\u91d1\u5c5e\u50ac\u5316\u5242\u4e2d\uff0c\u5178\u578b\u7684Pt\u57fa\u50ac\u5316\u5242\u4fc3\u8fdb\u4e00\u7cfb\u5217\u53cd\u5e94\uff0c\u4f8b\u5982NO<sub>x<\/sub>\u8fd8\u539f\uff08Pt-Rh\uff09\u548c\u70f7\u70c3\u8131\u6c22\uff08Pt-In\uff09\u3002\u5728\u53cd\u5e94\u4e2d\uff0c\u8fd9\u4e9b\u50ac\u5316\u5242\u5728\u5feb\u901f\u53d8\u5316\u7684\u8fd8\u539f\u548c\u6c27\u5316\u73af\u5883\u4e0b\u9ad8\u6e29\u8fd0\u884c\u3002\u4f8b\u5982\uff0c\u8131\u6c22\u50ac\u5316\u5242\u5728\u9ad8\u6e29\u70f7\u70c3\u6d41\u4e2d\u7ed3\u7126\u540e\uff0c\u9700\u8981O<sub>2<\/sub>\u00a0-H<sub>2<\/sub>\u6c27\u5316\u8fd8\u539f\u5faa\u73af\u5904\u7406\u518d\u751f(O<sub>2<\/sub>)\u548c\u518d\u6d3b\u5316(H<sub>2<\/sub>) Pt-In\u7eb3\u7c73\u5408\u91d1\u3002\u867d\u7136\u50ac\u5316\u5242\u6700\u521d\u88ab\u8ba4\u4e3a\u662f\u9759\u6001\u7269\u8d28\uff0c\u4f46\u8fd1\u51e0\u5341\u5e74\u6765\u7684\u5927\u91cf\u7814\u7a76\u8868\u660e\uff08\u53cc\uff09\u91d1\u5c5e\u50ac\u5316\u5242\u5728\u53cd\u5e94\u6761\u4ef6\u4e0b\u662f\u52a8\u6001\u53d8\u5316\u7684\u7eb3\u7c73\u6750\u6599\u3002\u5728\u50ac\u5316\u5242\u7684\u4f7f\u7528\u5bff\u547d\u4e2d\uff0c\u591a\u4e2a\u539f\u5b50\u5c3a\u5ea6\u7684\u8fc7\u7a0b\u5851\u9020\u4e86\u50ac\u5316\u5242\u7684\u5de5\u4f5c\u72b6\u6001\uff0c\u4ece\u800c\u5f71\u54cd\u4e86\u50ac\u5316\u5242\u7684\u6027\u80fd\u3002\u4e0d\u8a00\u800c\u55bb\uff0c\u7406\u89e3\u8fd9\u4e9b\u8fc7\u7a0b\u5e76\u8be6\u7ec6\u63cf\u8ff0\u5b83\u4eec\u7684\u52a8\u529b\u5b66\u5bf9\u63a7\u5236\u5b83\u4eec\u7684\u53d1\u751f\u4ee5\u53ca\u50ac\u5316\u5242\u6027\u80fd\u81f3\u5173\u91cd\u8981\u3002\u4e3a\u6b64\u76ee\u7684\uff0c\u63d0\u4f9b\u9ad8\u65f6\u95f4\u5206\u8fa8\u7387\u4f46\u4e0d\u9700\u8981\u957f\u7a0b\u6709\u5e8f\u4e14\u53ef\u539f\u4f4d\u5e94\u7528\u7684\u6280\u672f\uff0c\u8fd9\u4e9b\u6280\u672f\u5bf9\u4e8e\u53cc\u91d1\u5c5e\u7eb3\u7c73\u50ac\u5316\u5242\u7684\u52a8\u529b\u5b66\u884c\u4e3a\uff08\u901a\u5e38\u65e0\u5e8f\u7684\uff09\u7814\u7a76\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002\u4f8b\u5982\uff0c\u539f\u4f4d\u3001\u5206\u6563\u548c\u5feb\u901fX\u5c04\u7ebf\u5438\u6536\u5149\u8c31\uff08XAS\uff09\u5df2\u7ecf\u5728\u63ed\u793a\uff08\u53cc\uff09\u91d1\u5c5e\u7eb3\u7c73\u7c92\u5b50\u7684\u91cd\u7ec4\u53d1\u6325\u4e86\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002<\/p>\n<p><strong><b>\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/b><\/strong><\/p>\n<p>\u8fd1\u65e5\uff0c\u5728<strong><b>\u6bd4\u5229\u65f6\u6839\u7279\u5927\u5b66Vladimir Galvita<\/b><\/strong><strong><b>\u6559\u6388<\/b><\/strong>\u548c<strong><b>Matthias Filez\u535a\u58eb\uff08\u5171\u540c\u901a\u8baf\u4f5c\u8005\uff09<\/b><\/strong>\u56e2\u961f\u7684\u5e26\u9886\u4e0b\uff0c\u4e0e<strong><b>\u6bd4\u5229\u65f6\u5b89\u7279\u536b\u666e\u5927\u5b66<\/b><\/strong>\uff0c<strong><b>\u745e\u58eb\u4fdd\u7f57\u8c22\u5c14\u7814\u7a76\u6240<\/b><\/strong>\u548c<strong><b>\u8377\u5170\u4e4c\u7279\u52d2\u652f\u5927\u5b66<\/b><\/strong>\u5408\u4f5c\uff0c\u901a\u8fc7\u539f\u5b50\u5c42\u6c89\u79ef\uff08ALD\uff09\u5236\u9020\u76f8\u7eafPt-In\u5408\u91d1\uff0c\u4f7f\u7528\u5feb\u901fX\u5c04\u7ebf\u5438\u6536\u5149\u8c31\uff08QXAS\uff09\u63a2\u6d4b\u4e86\u7531\u9ad8\u6e29O<sub>2<\/sub>-H<sub>2<\/sub>\u6c27\u5316\u8fd8\u539f\u5faa\u73af\u8bf1\u5bfc\u4e0bPt<sub>13<\/sub>In<sub>9<\/sub>\u578b\u7eb3\u7c73\u50ac\u5316\u5242\u7684\u52a8\u6001\u5bff\u547d\u53d8\u5316\u3002\u8fd9\u79cdPt-In\u50ac\u5316\u5242\u5728\u70f7\u70c3\u8131\u6c22\u3001\u751f\u7269\u57fa\u6c27\u8f6c\u5316\u3001\u76f4\u63a5\u7532\u9187\u548c\u4e59\u9187\u71c3\u6599\u7535\u6c60\u7b49\u65b9\u9762\u5177\u6709\u5e7f\u9614\u7684\u5e94\u7528\u524d\u666f\u3002\u4e3a\u4e86\u539f\u4f4d\u76d1\u6d4b\u8fd9\u4e9b\u50ac\u5316\u5242\u5728\u9ad8\u65f6\u95f4\u5206\u8fa8\u7387\u7684\u52a8\u529b\u5b66\u884c\u4e3a\uff0cQXAS\u5149\u8c31\u5728Pt L<sub>3<\/sub>-edge\u4ee5\u4e00\u79d2\u7684\u65f6\u95f4\u5206\u8fa8\u7387\u8bb0\u5f55\u4fe1\u606f\u3002\u5728\u66f4\u957f\u7684\u65f6\u95f4\u5c3a\u5ea6\u4e0a\uff0c\u70e7\u7ed3\u73b0\u8c61\u5f97\u5230\u8bc1\u5b9e\uff0c\u5e76\u4e14\u5728\u6574\u4e2a\u50ac\u5316\u5242\u5bff\u547d\u671f\u95f4\u663e\u793a\u51fa\u9897\u7c92\u5185\u90e8\u7ed3\u6784\u3002\u539f\u4f4d\u65f6\u95f4\u5206\u8fa8\u89c2\u5bdf\u5408\u91d1\u7eb3\u7c73\u7c92\u5b50\u7684\u52a8\u6001\u4e60\u6027\u53ca\u5176\u52a8\u529b\u5b66\u63cf\u8ff0\u53ef\u5f71\u54cd\u50ac\u5316\u548c\u6d89\u53ca\uff08\u53cc\uff09\u91d1\u5c5e\u7eb3\u7c73\u5408\u91d1\u7684\u5176\u4ed6\u9886\u57df\u3002\u76f8\u5173\u6210\u679c\u4ee5\u9898\u4e3a\u201c<strong><b>Kinetics of Lifetime Changes in Bimetallic Nanocatalysts Revealed by Quick X-ray Absorption Spectroscopy<\/b><\/strong>\u201d\u53d1\u8868\u5728\u4e86<strong><b>Angew. Chem.<\/b><\/strong>\u4e0a\u3002<\/p>\n<p><strong><b>\u00a0<\/b><\/strong><strong><b>\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/b><\/strong><\/p>\n<p><strong><b>\u56fe1 <\/b><\/strong><strong><b>Pt-In\u7eb3\u7c73\u9897\u7c92\u50ac\u5316\u5242<\/b><\/strong><strong><b>\u7684\u5fae\u89c2\u8868\u5f81<\/b><\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-154094\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/09\/1-34.jpg\" alt=\"\" width=\"600\" height=\"712\" srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/09\/1-34.jpg 600w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/09\/1-34-253x300.jpg 253w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>a\uff09\u901a\u8fc7\u5feb\u901f\u626b\u63cf\u901a\u9053\u5207\u5272\u5355\u8272\u4eea\u4ea7\u751fX\u5c04\u7ebf\u675f\u7684\u540c\u6b65\u52a0\u901f\u5668\u6e90\u5c06X\u5c04\u7ebf\u675f\u7167\u5c04\u5728\u6bdb\u7ec6\u7ba1\u4e2d\u7684\u50ac\u5316\u5242\u5e8a\uff0c\u901a\u8fc7\u8be5\u6bdb\u7ec6\u7ba1\u4f7f\u73af\u72b6H<sub>2<\/sub>\u00a0-O<sub>2<\/sub>\u8109\u51b2\u6d41\u52a8\u4ee5\u5f15\u8d77Pt-In\u7eb3\u7c73\u50ac\u5316\u5242\u7684\u7ed3\u6784\u53d8\u5316\u3002\u901a\u8fc7X\u5c04\u7ebf\u68c0\u6d4b\u5668\u4ee51\u79d2\u7684\u65f6\u95f4\u5206\u8fa8\u7387\u6d4b\u91cfX\u5c04\u7ebf\u5438\u6536\u5149\u8c31\u3002<\/p>\n<p>b\uff09Pt L<sub>3<\/sub>-edge\u00a0XANES\u767d\u7ebf\uff08WL\uff09\u4e2d\u5f52\u4e00\u5316\u5438\u6536\u4ea7\u751fWL\u9ad8\u5ea6\uff08\u9876\u90e8\uff09\u548cWL\u80fd\u91cf\uff08\u5728WL\u6700\u5927\u503c\u5904\uff09\uff08\u5e95\u90e8\uff09\uff0c\u4f5c\u4e3aH<sub>2<\/sub>-O<sub>2<\/sub>\u6c27\u5316\u8fd8\u539f\u5faa\u73af\u6b21\u6570\u7684\u51fd\u6570\u3002\u5b9e\u9a8c\u5728\u53ef\u53d8\u6e29\u5ea6\u4e0b\u8fdb\u884c\uff0c\u8303\u56f4\u4ece923 K\u5230723 K\u3002\u00a0<\/p>\n<p>d\uff0ce\uff091\u6b21\u6c27\u5316\u8fd8\u539f\u5faa\u73af\u540e\uff0cPt-In\u7eb3\u7c73\u9897\u7c92\u50ac\u5316\u5242\u7684HAADF-STEM\u56fe\u50cf\u3002e\uff09Pt-In\u7eb3\u7c73\u9897\u7c92\u5728\u7b2c1\u6b21H<sub>2<\/sub>-O<sub>2<\/sub>\u5faa\u73af\u540e\u7684HAADF-STEM \uff0c\u5373\u5728\u518d\u6c27\u5316\u548c\u5408\u91d1\u504f\u6790\u4e4b\u540e\uff0c\u663e\u793a\u51fa\u660e\u4eae\u7684Pt\u6838\u5fc3\u88ab\u5305\u56f4\u5728\u6697\u8272\u7684\u6c27\u5316\u7269\u5916\u58f3\u4e2d\u3002<\/p>\n<p>f\uff0cg\uff0960\u6b21\u6c27\u5316\u8fd8\u539f\u5faa\u73af\u540e\uff0cPt-In\u7eb3\u7c73\u9897\u7c92\u50ac\u5316\u5242\u7684HAADF-STEM\u56fe\u50cf\u3002f\uff09\u5728\u6c27\u5316\uff08\u5408\u91d1\u5206\u79bb\uff09\u72b6\u6001\u4e0b60\u6b21\u6c27\u5316\u8fd8\u539f\u5faa\u73af\u540e\u70e7\u7ed3\u7684\u7eb3\u7c73\u9897\u7c92\u7684HAADF-STEM\u56fe\u50cf\uff0c\u663e\u793aPt\u7eb3\u7c73\u7f51\u7edc\u5f62\u6210\uff0c\u5305\u56f4In\u6c27\u5316\u7269\uff0c\u63d2\u56fe\u662f\u7ea2\u8272\u65b9\u5757\u7684\u653e\u5927\u533a\u57df\u548c\u76f8\u5e94\u7684FFT\u3002<\/p>\n<p><strong><b>\u56fe2 <\/b><\/strong><strong><b>H<\/b><\/strong><strong><sub><b>2<\/b><\/sub><\/strong><strong><b>-O<\/b><\/strong><strong><sub><b>2<\/b><\/sub><\/strong><strong><b>\u6c27\u5316\u8fd8\u539f\u5faa\u73af<\/b><\/strong><strong><b>\u4e2d<\/b><\/strong><strong><b>EXAFS<\/b><\/strong><strong><b>\u8868\u5f81<\/b><\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-154095\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/09\/2-34.jpg\" alt=\"\" width=\"600\" height=\"347\" srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/09\/2-34.jpg 600w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/09\/2-34-300x174.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>a\uff09\u572821\u6b21H<sub>2<\/sub>\u00a0-O<sub>2<\/sub>\u6c27\u5316\u8fd8\u539f\u5faa\u73af\u540e\uff0c\u5728\u5355\u4e2a\u5faa\u73af\u7684\u4e94\u4e2a\u65f6\u95f4\u70b9\uff081-5 \uff09\u7684Pt L<sub>3<\/sub>-edge\u5c0f\u6ce2\u53d8\u6362\uff08WT\uff09\u5feb\u901fEXAFS\u5e45\u5ea6\u56fe\u3002\u8be5\u56fe\u63ed\u793a\u4e86Pt\u5468\u56f4\u7684\u5143\u7d20\u7c7b\u578b\uff08k\u8f74\uff09\u548c\u4f4d\u7f6e\uff08R\u8f74\uff09\uff0c\u5373In\uff0cO\u6216Pt\u3002\u989c\u8272\u6761\u8868\u793aWT QEXAFS\u91cf\u503c\u7684\u5f52\u4e00\u5316\u5f3a\u5ea6\uff080-1\uff09\u3002<\/p>\n<p>b\uff09\u7b2c21\u6b21\u6c27\u5316\u8fd8\u539f\u5faa\u73af\u4e2d\u7684WL\u9ad8\u5ea6\u548c\u80fd\u91cf\u4e0e\u65f6\u95f4\u7684\u5173\u7cfb\u3002\u6d45\u84dd\u8272\uff08\u6df1\u84dd\u8272\uff09\u5bf9\u5e94\u4e8eH<sub>2<\/sub>\uff08O<sub>2<\/sub>\uff09\u6c14\u4f53\u73af\u5883\u3002<\/p>\n<p>c\uff09\u572821\u6b21H<sub>2<\/sub>\u00a0-O<sub>2<\/sub>\u6c27\u5316\u8fd8\u539f\u5faa\u73af\uff0c\u5728893 K\u671f\u95f4WL\u6700\u5927\u503c\u7684\u77ac\u65f6\u6f14\u53d8\uff0c\u4ecePt<sub>13<\/sub>In<sub>9<\/sub>\u6f14\u53d8\u4e3a\u5206\u79bb\u7684PtO<sub>x<\/sub>\u6001\uff08O<sub>2<\/sub>\uff09\u5e76\u4e14\u7ecf\u7531Pt<sub>3<\/sub>In\u4e2d\u95f4\u4f53\u8fd4\u56de\u5230Pt<sub>13<\/sub>In<sub>9<\/sub>\uff08H<sub>2<\/sub>\uff09\u3002Pt\uff0cPt<sub>3<\/sub>In\u548cPt<sub>13<\/sub>In<sub>9<\/sub>\u53c2\u8003\u7684WL\u4f4d\u7f6e\u4ee5\u6b63\u65b9\u5f62\u663e\u793a\u3002<\/p>\n<p>d\uff09\u5728\u5355\u4e00H<sub>2<\/sub>\u00a0-O<sub>2<\/sub>\u6c27\u5316\u8fd8\u539f\u6c34\u5e73\u4e0b\u53ef\u9006Pt-In\u504f\u6790\uff0cPt\u6c27\u5316\u548cPt-In\u518d\u5408\u91d1\u5316\u7684\u673a\u7406\uff1a\uff082-5\uff09Pt<sub>13<\/sub>In<sub>9<\/sub>\u540c\u65f6\u504f\u6790\uff0cPt\u8868\u9762\u6c27\u5316\uff0c\uff085-8\uff0c1\uff09\u8fde\u7eedPt\u8fd8\u539f\u548cPt-In\u5408\u91d1\u5316\u3002<\/p>\n<p><strong><b>\u56fe3<\/b><\/strong><strong><b>\u00a0Pt\u6c27\u5316\u548cPt-In\u5408\u91d1\u5316\u7684\u52a8\u529b\u5b66\u5efa\u6a21<\/b><\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-154096\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/09\/3-31.jpg\" alt=\"\" width=\"600\" height=\"431\" srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/09\/3-31.jpg 600w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/09\/3-31-300x216.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>a\uff09Arrhenius\u66f2\u7ebfPt-In\u504f\u6790\uff08\u7eff\u8272\uff09\uff0c\uff08Pt\u8868\u9762\u6c27\u5316\u7ea2\u8272\uff09\u548cPt\u6269\u6563\u63a7\u5236\u6c27\u5316\u8fc7\u7a0b\uff08\u84dd\u8272\uff09\u3002<\/p>\n<p>b\uff09Arrhenius\u66f2\u7ebfPt-In\u5408\u91d1\u5316\uff08\u7eff\u8272\uff09\u548cPt\u8fd8\u539f\uff08\u7ea2\u8272\uff09\u3002<\/p>\n<p>c\uff0ce\uff09\u7eff\u8272\u3001\u7ea2\u8272\u548c\u84dd\u8272\u5206\u522b\u662f\u5b83\u4eec\u5bf9WL 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x\u8fd8\u539f\uff0c\u7136\u540e\u662fPt-In\u5408\u91d1\u5316\uff0c\u4e24\u8005\u90fd\u8868\u73b0\u51fa\u4f4e\u7684\u8868\u89c2\u6d3b\u5316\u80fd\u3002\u8fd9\u79cdQXAS\u65b9\u6cd5\u53ef\u4ee5\u5e94\u7528\u4e8e\u5404\u79cd\uff08\u53cc\uff09\u91d1\u5c5e\u7eb3\u7c73\u50ac\u5316\u5242\uff0c\u5e76\u4e14\u53ef\u4ee5\u5e94\u7528\u4e8e\u7814\u7a76\u53cc\u91d1\u5c5e\u7eb3\u7c73\u9897\u7c92\u548c\u7eb3\u7c73\u6750\u6599\u7684\u52a8\u6001\u53d8\u5316\u7684\u4efb\u4f55\u9886\u57df\u3002<\/p>\n<p><strong><b>\u6587\u732e\u94fe\u63a5<\/b><\/strong><strong><b>\uff1a<\/b><\/strong><a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/abs\/10.1002\/anie.201806447\"><u>Kinetics of Lifetime Changes in Bimetallic Nanocatalysts Revealed by Quick X-ray Absorption Spectroscopy<\/u><\/a>\uff08Angew. 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