{"id":207521,"date":"2020-08-18T06:05:24","date_gmt":"2020-08-17T22:05:24","guid":{"rendered":"\/\/m.iemloyee.com\/?p=207521"},"modified":"2020-08-17T22:05:39","modified_gmt":"2020-08-17T14:05:39","slug":"%e9%83%91%e5%8d%97%e5%b3%b0%e5%82%85%e9%92%a2nat-nanotechnol-%ef%bc%9a%e7%82%b9%e9%93%9c%e6%88%90%e9%92%af-%e8%b4%b5%e9%87%91%e5%b1%9e%e6%99%b6%e9%9d%a2%e5%b7%a5%e7%a8%8b","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=207521","title":{"rendered":"\u90d1\u5357\u5cf0&#038;\u5085\u94a2Nat. Nanotechnol.\uff1a\u201c\u70b9\u94dc\u6210\u94af\u201d\u2014\u8d35\u91d1\u5c5e\u6676\u9762\u5de5\u7a0b\u52a0\u901f\u6ea2\u6d41\u52a0\u6c22"},"content":{"rendered":"<p><strong>\u3010\u7814\u7a76\u80cc\u666f\u3011<\/strong><\/p>\n<p>\u6240\u8c13\u6ea2\u6d41\uff08Spillover\uff09\u73b0\u8c61\uff0c\u662f\u6307\u56fa\u4f53\u50ac\u5316\u5242\u8868\u9762\u7684\u6d3b\u6027\u4e2d\u5fc3\uff08\u539f\u6709\u7684\u6d3b\u6027\u4e2d\u5fc3\uff09\u7ecf\u5438\u9644\u4ea7\u751f\u51fa\u4e00\u79cd\u79bb\u5b50\u7684\u6216\u8005\u81ea\u7531\u57fa\u7684\u6d3b\u6027\u7269\u79cd\uff0c\u5b83\u4eec\u8fc1\u79fb\u5230\u522b\u7684\u6d3b\u6027\u4e2d\u5fc3\u5904\uff08\u6b21\u7ea7\u6d3b\u6027\u4e2d\u5fc3\uff09\u7684\u73b0\u8c61\u3002\u5b83\u4eec\u53ef\u4ee5\u5316\u5b66\u5438\u9644\u8bf1\u5bfc\u51fa\u65b0\u7684\u6d3b\u6027\u6216\u8fdb\u884c\u67d0\u79cd\u5316\u5b66\u53cd\u5e94\u3002\u5982\u679c\u6ca1\u6709\u539f\u6709\u6d3b\u6027\u4e2d\u5fc3\uff0c\u8fd9\u79cd\u6b21\u7ea7\u6d3b\u6027\u4e2d\u5fc3\u4e0d\u53ef\u80fd\u4ea7\u751f\u51fa\u6709\u610f\u4e49\u7684\u6d3b\u6027\u7269\u79cd\uff0c\u8fd9\u5c31\u662f\u6ea2\u6d41\u73b0\u8c61\u3002\u6c22\u6ea2\u6d41\u662f\u50ac\u5316\u4e2d\u4e00\u4e2a\u91cd\u8981\u73b0\u8c61\uff0c\u5305\u62ec\u6c22\u5728\u6d3b\u6027\u91d1\u5c5e\u4e0a\u7684\u88c2\u89e3\uff0c\u7136\u540e\u6e38\u79bb\u7684\u6c22\u7269\u79cd\u5728\u201c\u60f0\u6027\u201d\u8f7d\u4f53\u4e0a\u7684\u8fc1\u79fb\u3002\u5982\u679c\u6ea2\u6d41\u5230\u8f7d\u4f53\u4e0a\u7684\u6c22\u80fd\u591f\u6709\u6548\u4fc3\u8fdb\u50ac\u5316\u52a0\u6c22\uff0c\u5c31\u76f8\u5f53\u4e8e\u5ec9\u4ef7\u8f7d\u4f53\u5177\u6709\u4e86\u7c7b\u4f3c\u8d35\u91d1\u5c5e\u7684\u6027\u8d28\u3002\u957f\u671f\u4ee5\u6765\uff0c\u6ea2\u6d41\u5230\u201c\u60f0\u6027\u201d\u8f7d\u4f53\u4e0a\u7684\u6c22\u7269\u79cd\u662f\u5426\u5177\u6709\u50ac\u5316\u52a0\u6c22\u6d3b\u6027\u4e00\u76f4\u5b58\u5728\u4e89\u8bae\u3002<\/p>\n<p><strong>\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n<p>\u8fd1\u65e5\uff0c<strong>\u53a6\u95e8\u5927\u5b66\u90d1\u5357\u5cf0\u6559\u6388\u4e0e\u5085\u94a2\u6559\u6388<\/strong>\u901a\u8fc7\u5c06\u5355\u539f\u5b50\u5206\u6563\u50ac\u5316\u5242\u4e0e\u7eb3\u7c73\u8868\u9762\u7ed3\u6784\u8c03\u63a7\u6709\u673a\u7ed3\u5408\uff0c\u5236\u5907\u4e86\u7ed3\u6784\u660e\u786e\u3001\u4e0d\u540c\u8868\u9762Cu\u8d1f\u8f7d\u7684Pd\u5355\u539f\u5b50\u50ac\u5316\u5242\uff0c\u63ed\u793a\u6ea2\u6d41\u6c22\u7269\u79cd\u7684\u52a0\u6c22\u80fd\u529b\u4e0eCu\u8f7d\u4f53\u7684\u6676\u9762\u5bc6\u5207\u76f8\u5173\u3002\u7814\u7a76\u53d1\u73b0Pd<sub>1<\/sub>\/Cu(111)\u548cPd<sub>1<\/sub>\/Cu(100)\u8fd9\u4e24\u79cd\u50ac\u5316\u5242\u5728\u7094\u70c3\u534a\u6c22\u5316\u53cd\u5e94\u4e2d\u5747\u5177\u6709\u5f88\u9ad8\u7684\u50ac\u5316\u9009\u62e9\u6027\uff0c\u4f46\u5176\u6d3b\u6027\u5374\u4e0ePd\u8d1f\u8f7d\u91cf\u5448\u73b0\u622a\u7136\u4e0d\u540c\u7684\u4f9d\u8d56\u5173\u7cfb\u3002\u5f53Pd\u8d1f\u8f7d\u91cf\u964d\u5230\u6781\u4f4e\uff08ppm\u7ea7\uff09\uff0cCu\u7eb3\u7c73\u7247\u4e0d\u5177\u6709\u52a0\u6c22\u6d3b\u6027\uff0c\u4f46\u5176\u8d1f\u8f7d\u7684\u50ac\u5316\u5242\u4ecd\u7136\u62e5\u6709\u5f88\u9ad8\u7684\u52a0\u6c22\u50ac\u5316\u6d3b\u6027\uff0c\u9884\u793a\u7740\u6c22\u6c14\u5728Pd\u4e2d\u5fc3\u6d3b\u5316\u540e\uff0c\u6ea2\u6d41\u5230Cu(100)\u6676\u9762\u6240\u5f62\u6210\u7684H\u7269\u79cd\u5177\u6709\u52a0\u6c22\u80fd\u529b\u3002\u66f4\u4e3a\u91cd\u8981\u7684\u662f\uff0c\u8fd9\u4e00\u6ea2\u6d41\u52a0\u6c22\u8fc7\u7a0b\u4e5f\u540c\u65f6\u5f97\u5230\u4e86CO\u5b9a\u91cf\u6bd2\u5316\u6d3b\u6027\u8868\u5f81\u4ee5\u53ca\u589e\u52a0Cu\u7eb3\u7c73\u7acb\u65b9\u4f53\u6dfb\u52a0\u91cf\u53ef\u63d0\u5347\u50ac\u5316\u6d3b\u6027\u4e24\u65b9\u9762\u5b9e\u9a8c\u7684\u8bc1\u5b9e\uff0c\u5f62\u6210\u4e86\u5224\u65ad\u6ea2\u6d41\u52a0\u6c22\u662f\u5426\u53d1\u751f\u7684\u6709\u6548\u7b56\u7565\u3002\u7406\u8bba\u8ba1\u7b97\u8868\u660e\uff0c\u9664\u4e86H\u4e0e\u8868\u9762\u7684\u7ed3\u5408\u80fd\u5916\uff0c\u7094\u70c3\u7684\u5438\u9644\u80fd\u4e5f\u662f\u6ea2\u6d41\u52a0\u6c22\u4e00\u4e2a\u975e\u5e38\u5173\u952e\u7684\u56e0\u7d20\u3002\u76f8\u5bf9\u4e8eCu(111)\u8868\u9762\uff0cCu(100)\u8868\u9762\u7684s-p-d\u8f68\u9053\u6742\u5316\u53ef\u4ee5\u6709\u6548\u7a33\u5b9a\u52a0\u6c22\u8fc7\u6e21\u6001\uff0c\u964d\u4f4e\u53cd\u5e94\u80fd\u5792\uff0c\u4fc3\u8fdb\u6ea2\u6d41\u52a0\u6c22\u3002\u8be5\u6587\u7ae0\u8fd1\u65e5\u4ee5\u9898\u4e3a\u201c<strong>Facet engineering accelerates spillover hydrogenation on highly diluted metal nanocatalysts<\/strong>\u201d\u53d1\u8868\u5728\u77e5\u540d\u671f\u520a<strong>Nature Nanotechnology<\/strong>\u4e0a\u3002<\/p>\n<p><strong>\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n<p><strong>\u56fe\u4e00\u3001<\/strong><strong>Pd<sub>1<\/sub>\/Cu<\/strong><strong>\u4e0d\u540c\u6676\u9762\u7684\u7ed3\u6784\u8868\u5f81\u548c\u50ac\u5316\u6027\u80fd<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-207522\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/08\/1-15.jpg\" alt=\"\" width=\"600\" height=\"417\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/08\/1-15.jpg 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2020\/08\/1-15-300x209.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\uff08a-b\uff09Pd<sub>1<\/sub>\/Cu(111)\u548cPd<sub>1<\/sub>\/Cu(100)\u7684TEM\u56fe\u50cf\u3002<\/p>\n<p>\uff08c\uff09Pd<sub>1<\/sub>\/Cu\u50ac\u5316\u5242\u548cPd\u7b94\u5728Pd-K\u8fb9\u7f18\u7684\u5085\u7acb\u53f6\u53d8\u6362EXAFS\u5149\u8c31\u3002<\/p>\n<p>\uff08d\uff09\u4e0d\u540cPd<sub>1<\/sub>\/Cu\u50ac\u5316\u5242\u5bf9\u82ef\u4e59\u7094\u534a\u6c22\u5316\u7684\u50ac\u5316\u6027\u80fd\u3002<\/p>\n<p>\uff08e\uff09Pd<sub>1<\/sub>\/Cu\uff08111\uff09\u548cPd<sub>1<\/sub>\/Cu\uff08100\uff09\u5728\u82ef\u4e59\u7094\u534a\u6c22\u5316\u53cd\u5e94\u4e2d\u7684\u50ac\u5316\u5faa\u73af\u6027\u80fd\u3002<\/p>\n<p>\uff08f\uff09\u5728\u4e0d\u540c\u8d1f\u8f7d\u91cfPd\u7684Pd<sub>1<\/sub>\/Cu\u50ac\u5316\u5242\u4e0a\uff0c\u82ef\u4e59\u7094\u57281\u2009\u5c0f\u65f6\u5185\u7684\u8f6c\u5316\u91cf\u3002<\/p>\n<p><strong>\u56fe\u4e8c\u3001<\/strong><strong>DFT<\/strong><strong>\u8ba1\u7b97\u63ed\u793a\u4e86\u6676\u9762\u76f8\u5173\u7684\u6c22\u5316\u53cd\u5e94<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-207523\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/08\/2-14.jpg\" alt=\"\" width=\"600\" height=\"419\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/08\/2-14.jpg 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2020\/08\/2-14-300x210.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\uff08a\uff09Pd<sub>1<\/sub>\/Cu\u8868\u9762\u4e09\u79cd\u53ef\u80fd\u7684\u53cd\u5e94\u4f4d\u70b9\u3002<\/p>\n<p>\uff08b\uff09Pd<sub>1<\/sub>\/Cu\uff08111\uff09\u548cPd<sub>1<\/sub>\/Cu\uff08100\uff09\u8868\u9762\u6a21\u578b\u7684\u4fef\u89c6\u56fe\u548c\u4fa7\u89c6\u56fe\u3002<\/p>\n<p>\uff08c\uff09\u82ef\u4e59\u7094\u5728\u4e24\u4e2a\u4f4eMiller\u7cfb\u6570Cu\u8868\u9762\u7684\u9010\u6b65\u52a0\u6c22\u80fd\u5792\u3002<\/p>\n<p>\uff08d\uff09\u4e0d\u540cPd<sub>1<\/sub>\/Cu\u50ac\u5316\u5242\u5728\u4e0d\u540c\u6d3b\u6027\u4e2d\u5fc3\u4e0a\u7684TS1\u80fd\u5792\u3002<\/p>\n<p><strong>\u56fe\u4e09\u3001\u50ac\u5316\u5242\u6ea2\u6d41\u52a0\u6c22<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-207524\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/08\/3-17.jpg\" alt=\"\" width=\"600\" height=\"423\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/08\/3-17.jpg 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2020\/08\/3-17-300x212.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\uff08a\uff09\u82ef\u4e59\u7094\u7684\u6c22\u5316\u548c\u89e3\u5438\u9644\u7ade\u4e89\u3002<\/p>\n<p>\uff08b\uff09\u4e0d\u540cPd<sub>1<\/sub>\/Cu\u50ac\u5316\u5242\u4e0a\u7684CO\u6ef4\u5b9a\uff08\u5b9a\u91cf\u6bd2\u5316Pd\u4f4d\u70b9\uff09\u3002<\/p>\n<p>\uff08c\uff09Pd<sub>1<\/sub>\/Cu\uff08111\uff09\u4e0e\u4e0d\u540c\u66b4\u9732\u9762\u7eaf\u94dc\u7eb3\u7c73\u6750\u6599\u7269\u7406\u6df7\u5408\u5bf9\u82ef\u4e59\u7094\u52a0\u6c22\u53cd\u5e94\u7684\u53cd\u5e94\u6027\u3002<\/p>\n<p>\uff08d\uff09\u5927\u91cf\u4e59\u70ef\u5728Pd<sub>1<\/sub>\/Cu\uff08111\uff09\u50ac\u5316\u5242\u4e2d\u4e0e\u5927\u91cf\u4e0d\u540c\u7684\u5177\u6709\u66b4\u9732\u9762\u7684Cu\u7eb3\u7c73\u7acb\u65b9\u4f53\u8fdb\u884c\u6c14\u76f8\u52a0\u6c22\u53cd\u5e94\u7684\u8f6c\u5316\u7387\u3002<\/p>\n<p><strong>\u3010\u7ed3\u8bba\u5c55\u671b\u3011<\/strong><\/p>\n<p>\u7efc\u4e0a\u6240\u8ff0\uff0c\u4f5c\u8005\u901a\u8fc7\u5c06Pd\u539f\u5b50\u5206\u6563\u5230\u5177\u6709\u4e0d\u540c\u66b4\u9732\u9762Cu\uff08111\uff09\u548cCu\uff08100\uff09\u7684Cu\u7eb3\u7c73\u6750\u6599\u4e0a\uff0c\u8bc1\u660e\u4e86\u867d\u7136Pd\u5230Cu\u7684\u6c22\u6ea2\u51fa\u662f\u4e0e\u6676\u9762\u65e0\u5173\u7684\uff0c\u4f46\u6ea2\u51fa\u6c22\u5316\u53ea\u53d1\u751f\u5728Pd<sub>1<\/sub>\/Cu\uff08100\uff09\u4e0a\uff0c\u4ece\u94af\u4e2d\u6ea2\u51fa\u7684\u6c22\u539f\u5b50\u5f88\u5bb9\u6613\u7528\u4e8e\u7094\u70c3\u7684\u534a\u6c22\u5316\u53cd\u5e94\u3002\u7814\u7a76\u8fd8\u53d1\u73b0\uff0c\u50ac\u5316\u6d3b\u6027\u53ef\u968f\u52a0\u5165Cu\u7eb3\u7c73\u7acb\u65b9\u4f53\u7684\u5c3a\u5ea6\u589e\u5927\u800c\u5927\u5e45\u63d0\u5347\uff0c\u5e76\u8bc1\u5b9eCu\u8868\u9762\u4e0a\u6c22\u6ea2\u6d41\u8ddd\u79bb\u53ef\u5927\u4e8e500nm\uff0c\u8fdc\u9ad8\u4e8e\u6c27\u5316\u7269\u8868\u9762\u7684\u6c22\u6ea2\u6d41\u8ddd\u79bb\u3002\u4e3a\u6b64\uff0c\u8be5\u7814\u7a76\u63d0\u51fa\u4e86\u53ef\u4ee5\u5229\u7528\u6781\u4f4e\u7684Pd\u542b\u91cf\uff080.005 wt\uff05\uff0c50ppm\uff09\u6765\u6fc0\u6d3bCu(100)\uff0c\u4f7f\u5176\u5177\u6709\u9ad8\u50ac\u5316\u6d3b\u6027\uff0c\u521b\u9020\u51fa\u201c\u70b9\u94dc\u6210\u94af\u201d\u6548\u5e94\u3002\u8be5\u50ac\u5316\u5242\u5bf9\u5404\u79cd\u53d6\u4ee3\u57fa\u4fee\u9970\u7684\u7094\u70c3\u534a\u52a0\u6c22\u53cd\u5e94\u90fd\u5177\u6709\u9ad8\u9009\u62e9\u6027\uff0c\u800c\u4e14\u65e0\u8bba\u5bf9\u6db2\u76f8\u6216\u6c14\u76f8\u53cd\u5e94\u90fd\u6709\u76f8\u5f53\u9ad8\u7684\u53cd\u5e94\u6d3b\u6027\u548c\u9009\u62e9\u6027\u3002<\/p>\n<p>\u6587\u732e\u94fe\u63a5\uff1a<a href=\"https:\/\/www.nature.com\/articles\/s41565-020-0746-x\" target=\"_blank\" rel=\"noopener\">Facet engineering accelerates spillover hydrogenation on highly diluted metal nanocatalysts<\/a> (<em>Nat. Nanotechnol.<\/em> <strong>2020<\/strong>, DOI: 10.1038\/s41565-020-0746-x)<\/p>\n<p>\u672c\u6587\u7531\u5927\u5175\u54e5\u4f9b\u7a3f\u3002<\/p>\n<p>\u6b22\u8fce\u5927\u5bb6\u5230\u6750\u6599\u4eba\u5ba3\u4f20\u79d1\u6280\u6210\u679c\u5e76\u5bf9\u6587\u732e\u8fdb\u884c\u6df1\u5165\u89e3\u8bfb\uff0c\u6295\u7a3f\u90ae\u7bb1\uff1a<a href=\"mailto:tougao@cailiaoren.com\">tougao@cailiaoren.com<\/a><\/p>\n<p>\u6295\u7a3f\u4ee5\u53ca\u5185\u5bb9\u5408\u4f5c\u53ef\u52a0\u7f16\u8f91\u5fae\u4fe1\uff1acailiaokefu<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3010\u7814\u7a76\u80cc\u666f\u3011 \u6240\u8c13\u6ea2\u6d41\uff08Spillover\uff09\u73b0\u8c61\uff0c\u662f\u6307\u56fa\u4f53\u50ac\u5316\u5242\u8868\u9762\u7684\u6d3b\u6027\u4e2d\u5fc3\uff08\u539f\u6709\u7684\u6d3b\u6027\u4e2d\u5fc3\uff09\u7ecf\u5438\u9644\u4ea7\u751f\u51fa\u4e00\u79cd\u79bb\u5b50\u7684\u6216\u8005\u81ea\u7531\u57fa\u7684\u6d3b\u6027\u7269\u79cd\uff0c\u5b83\u4eec\u8fc1\u79fb\u5230\u522b\u7684\u6d3b\u6027\u4e2d&#8230;<\/p>\n","protected":false},"author":1004,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[215],"tags":[4442],"class_list":["post-207521","post","type-post","status-publish","format-standard","hentry","category-jiedu","tag-4442"],"_links":{"self":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/207521"}],"collection":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/users\/1004"}],"replies":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=207521"}],"version-history":[{"count":3,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/207521\/revisions"}],"predecessor-version":[{"id":207728,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/207521\/revisions\/207728"}],"wp:attachment":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=207521"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=207521"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=207521"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}