{"id":222776,"date":"2021-06-03T12:00:48","date_gmt":"2021-06-03T04:00:48","guid":{"rendered":"\/\/m.iemloyee.com\/?p=222776"},"modified":"2021-06-03T11:43:01","modified_gmt":"2021-06-03T03:43:01","slug":"%e3%80%90%e5%9b%bd%e5%a4%96%e3%80%91%e8%8d%b7%e5%85%b0%e4%b9%8c%e5%be%97%e5%8b%92%e6%94%af%e5%a4%a7%e5%ad%a6nat-mater-%e9%80%9a%e8%bf%87%e6%a0%b8-%e5%a3%b3%e8%ae%be%e8%ae%a1%e9%87%8a%e6%94%be","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=222776","title":{"rendered":"\u3010\u56fd\u5916\u3011\u8377\u5170\u4e4c\u5f97\u52d2\u652f\u5927\u5b66Nat. Mater.:\u901a\u8fc7\u6838-\u58f3\u8bbe\u8ba1\u91ca\u653e\u53cc\u91d1\u5c5e\u50ac\u5316\u5242\u7684\u534f\u540c\u4f5c\u7528"},"content":{"rendered":"

\u3010\u5f15\u8a00<\/b><\/strong>\u3011<\/p>\n

\u5f53\u4e24\u79cd\u50ac\u5316\u6d3b\u6027\u91d1\u5c5e\u7ed3\u5408\u5728\u4e00\u8d77\u4f7f\u50ac\u5316\u6027\u80fd\u8d85\u8fc7\u5355\u91d1\u5c5e\u5bf9\u5e94\u7269\u65f6\uff0c\u5c31\u4f1a\u4ea7\u751f\u534f\u540c\u4f5c\u7528\u3002\u53cc\u91d1\u5c5e\u50ac\u5316\u5242\u53ef\u4ee5\u50ac\u5316\u4ece\u9009\u62e9\u6027\u52a0\u6c22\u5230\u6c27\u5316\u548c\u7535\u5316\u5b66\u53cd\u5e94\u7684\u5404\u79cd\u5316\u5b66\u8fc7\u7a0b\u3002\u4e3b\u8981\u5173\u6ce8\u4e8e\u5408\u91d1\u5316\u7684\u7eb3\u7c73\u9897\u7c92\uff0c\u56e0\u4e3a\u5b83\u4eec\u53ef\u4ee5\u901a\u8fc7\u6807\u51c6\u7684\u50ac\u5316\u5242\u5236\u5907\u65b9\u6cd5\u8f7b\u677e\u83b7\u5f97\uff0c\u5e76\u4e14\u53ef\u4ee5\u901a\u8fc7\u8c03\u8282\u5e73\u5747\u91d1\u5c5e\u7ec4\u6210\u8f7b\u677e\u8c03\u6574\u5176\u50ac\u5316\u6027\u80fd\u3002\u6c14\u4f53\u8bf1\u5bfc\u548c\u70ed\u8bf1\u5bfc\u7684\u91d1\u5c5e\u518d\u5206\u5e03\u4f1a\u5bf9\u50ac\u5316\u6027\u80fd\u4ea7\u751f\u91cd\u5927\u5f71\u54cd\u3002\u968f\u7740\u6750\u6599\u79d1\u5b66\u7684\u6700\u65b0\u8fdb\u5c55\uff0c\u73b0\u5728\u53ef\u4ee5\u5408\u6210\u5177\u6709\u7cbe\u786e\u539f\u5b50\u6392\u5217\u7684\u53cc\u91d1\u5c5e\u7eb3\u7c73\u7c92\u5b50\uff0c\u4f8b\u5982\u5355\u539f\u5b50\u5408\u91d1\uff0c\u91d1\u5c5e\u95f4\u7ed3\u6784\u548c\u6838-\u58f3\u6750\u6599\u3002\u7136\u800c\uff0c\u73b0\u4eca\u5bf9\u91d1\u5c5e\u5206\u5e03\u4e0e\u53cc\u91d1\u5c5e\u50ac\u5316\u5242\u7684\u6027\u80fd\u4e4b\u95f4\u7684\u8054\u7cfb\u7814\u7a76\u5f97\u8f83\u5c11\u3002\u5c3d\u7ba1\u6210\u529f\u5730\u5c55\u793a\u4e86\u7535\u50ac\u5316\u4e2d\u7684\u6838-\u58f3\u50ac\u5316\u5242\uff0c\u4f46\u6838-\u58f3\u7eb3\u7c73\u9897\u7c92\u7684\u50ac\u5316\u884c\u4e3a\u4ecd\u672a\u5f97\u5230\u6df1\u5165\u7814\u7a76\uff0c\u5728\u8be5\u53cd\u5e94\u4e2d\uff0c\u7531\u5185\u6838\u8bf1\u5bfc\u7684\u58f3\u539f\u5b50\u7535\u5b50\u7279\u6027\u7684\u53d8\u5316\u5bfc\u81f4\u4e86\u50ac\u5316\u6027\u80fd\u7684\u63d0\u9ad8\u3002<\/p>\n

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

\u00a0<\/b><\/strong>\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/strong>\u00a0<\/b><\/strong>\u5c06\u5355\u91d1\u5c5e\u50ac\u5316\u5242\u6269\u5c55\u5230\u53cc\u91d1\u5c5e\u50ac\u5316\u5242\u662f\u5b9e\u73b0\u9ad8\u6548\u5316\u5b66\u8fc7\u7a0b\u7684\u5173\u952e\u3002\u4f20\u7edf\u4e0a\uff0c\u4ee5\u4e00\u79cd\u6d3b\u6027\u91d1\u5c5e\u548c\u4e00\u79cd\u9009\u62e9\u6027\u91d1\u5c5e\u4e3a\u7279\u5f81\u7684\u53cc\u91d1\u5c5e\u50ac\u5316\u5242\u7684\u6027\u80fd\u662f\u901a\u8fc7\u6539\u53d8\u91d1\u5c5e\u7ec4\u6210\u6765\u4f18\u5316\u7684\uff0c\u901a\u5e38\u4f1a\u5bfc\u81f4\u4e24\u79cd\u91d1\u5c5e\u7684\u50ac\u5316\u6027\u80fd\u4e4b\u95f4\u7684\u6298\u8877\u3002\u8377\u5170\u4e4c\u5f97\u52d2\u652f\u5927\u5b66\u7684\u7814\u7a76\u4eba\u5458<\/b><\/strong>\u901a\u8fc7\u8bbe\u8ba1\u53cc\u91d1\u5c5eAu-Pd\u7eb3\u7c73\u50ac\u5316\u5242\u7684\u539f\u5b50\u5206\u5e03\uff0c\u5728\u4e0e\u5de5\u4e1a\u76f8\u5173\u7684\u4e01\u4e8c\u70ef\u9009\u62e9\u6027\u52a0\u6c22\u4e2d\u83b7\u5f97\u4e86\u534f\u540c\u50ac\u5316\u6027\u80fd\u3002\u8fd9\u79cd\u5355\u6676Au\u6838Pd\u58f3\u7eb3\u7c73\u68d2\u7684\u6d3b\u6027\u662f\u5176\u5408\u91d1\u548c\u5355\u91d1\u5c5e\u5bf9\u5e94\u7269\u7684\u6d3b\u6027\u768450\u500d\uff0c\u540c\u65f6\u4fdd\u7559\u4e86\u9ad8\u9009\u62e9\u6027\u3002\u4f5c\u8005\u53d1\u73b0\u50ac\u5316\u6d3b\u6027\u4f1a\u968f\u58f3\u5c42\u539a\u5ea6\u7684\u53d8\u5316\uff1a\u9664\u5f00\u8868\u9762\u7684\u6750\u6599\uff0c\u5185\u6838\u7684\u6750\u6599\u4e5f\u5728\u50ac\u5316\u6027\u80fd\u4e2d\u90fd\u8d77\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\uff0c\u5e76\u4f7f\u7528\u5bc6\u5ea6\u6cdb\u51fd\u7406\u8bba\u8ba1\u7b97\u5408\u7406\u5316\u4e86\u8fd9\u4e00\u53d1\u73b0\u3002\u8fd9\u4e2a\u7ed3\u679c\u4e3a\u53cc\u91d1\u5c5e\u50ac\u5316\u5242\u7684\u7ed3\u6784\u8bbe\u8ba1\u5f00\u8f9f\u4e86\u53e6\u4e00\u6761\u9014\u5f84\u3002\u8be5\u6210\u679c\u4ee5\u9898\u4e3a\u201c<\/strong>Unlocking synergy in bimetallic catalysts by core-shell design<\/strong>\u201d<\/strong>\u53d1\u8868\u5728Nat. Mater.<\/b><\/strong>\u4e0a<\/strong>\u3002<\/p>\n

\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/b><\/strong><\/p>\n

\u56fe<\/b><\/strong>1.<\/b><\/strong>\u5177\u6709\u53d7\u63a7Pd\u542b\u91cf\u548c\u58f3\u539a\u5ea6\u7684\u5355\u5206\u6563Au@Pd@SiO2 NR\u7684\u6a21\u578b\u7cfb\u7edf<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09Au@Pd@SiO2 NR\u53ca\u5176\u8868\u9762\u7ed3\u6784\u7684\u793a\u610f\u56fe\uff08b\uff09\u539f\u5b50Pd\u6bd4\u4f8b\u968f\u5408\u6210\u6df7\u5408\u7269\u4e2dPd\u524d\u4f53\uff08Na2PdCl4\uff09\u6d53\u5ea6\u7684\u53d8\u5316\u800c\u53d8\u5316\uff08c\u2013f\uff09\u9ad8\u89d2\u5ea6\u73af\u5f62\u6697\u573a\u626b\u63cf\u900f\u5c04\u7535\u5b50\u663e\u5fae\u955c\u548cEDX\u56fe<\/p>\n

\u56fe2.\u6838\u58f3\u7ed3\u6784Au-Pd\u50ac\u5316\u5242\u7684\u6027\u80fd\u4f18\u4e8e\u5176\u5408\u91d1\u5316\u50ac\u5316\u5242<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09EDX\u56fe\uff08b\uff09\u4e0d\u540c\u7ed3\u6784\u7684Au@Pd@SiO2 NRs\u5728\u4e01\u4e8c\u70ef\u9009\u62e9\u6027\u52a0\u6c22\u4e2d\u7684\u50ac\u5316\u6d3b\u6027\u548c\u9009\u62e9\u6027\uff08c\uff09\u5728\u4e0d\u540c\u6e29\u5ea6\u4e0b\u9884\u5904\u7406\u7684Au@Pd@SiO2 NRs\u7684\u4e01\u4e8c\u70ef\u8f6c\u5316\u7387\u4e0e\u53cd\u5e94\u6e29\u5ea6\u7684\u5173\u7cfb \uff08d\uff09\u4e01\u4e8c\u70ef\u8f6c\u5316\u7387\u5bf9\u4e01\u70ef\u7684\u9009\u62e9\u6027<\/p>\n

\u56fe<\/strong>3.<\/b><\/strong>Au\u6838Pd-\u58f3\u50ac\u5316\u5242\u7684\u50ac\u5316\u6027\u80fd\u5bf9\u58f3\u5c42\u6570\u9ad8\u5ea6\u654f\u611f<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09\u4f7f\u7528\u5177\u6709\u53ef\u53d8\u7684Pd\u542b\u91cf\u548c\u58f3\u539a\u5ea6\u7684Au@Pd@SiO2 NR\uff08b\uff09\u4e01\u4e8c\u70ef\u8f6c\u5316\u7387\u4e0e\u53cd\u5e94\u6e29\u5ea6\u7684\u5173\u7cfb \uff08c\uff09\u4e01\u4e8c\u70ef\u8f6c\u5316\u7387\u5bf9\u4e01\u70ef\u7684\u9009\u62e9\u6027<\/p>\n

\u56fe<\/b><\/strong>4.<\/b><\/strong>\u8868\u9762\u523b\u9762\u7684\u6676\u4f53\u5b66\u53d6\u5411\uff0c\u94af\u58f3\u539a\u5ea6\u548c\u6676\u683c\u5e94\u53d8\u51b3\u5b9a\u4e86\u53cd\u5e94\u7269\u7684\u5438\u9644\u80fd<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09\u4e01\u4e8c\u70ef\u7684\u5e73\u5747\u5438\u9644\u80fd\u4e0e{100}\uff0c{111}\u548c{110}\u8868\u9762\u4e0aPd\u5c42\u6570\u7684\u5173\u7cfb \uff08b\uff09\u03c3\u548c\u03c0\u7ed3\u5408\u6a21\u5f0f\u7684\u793a\u610f\u56fe\u4ee5\u53ca\u7ed3\u5408\u80fd\u968f\u6c22\uff08\u9ed1\u8272\uff09\uff0c\u4e19\u70ef\uff08\u84dd\u8272\uff09\uff0c\u4e01\u70ef\uff08\u7eff\u8272\uff09\u548c\u4e01\u4e8c\u70ef\uff08\u7ea2\u8272\uff09\u7684Pd\u58f3\u539a\u5ea6\u7684\u53d8\u5316\u800c\u53d8\u5316 \uff08c\uff09\u5206\u522b\u7ed9\u51fa\u4e86Pd\uff08389 Ppm\uff09\u548cAu\uff08407 pm\uff09\u6676\u683c\u53c2\u6570\u5bf9Pd\u4ee5\u53ca\u5e94\u53d8Pd {111}\u548c{110}\u8868\u9762\u7684\u6c22\u548c\u4e01\u4e8c\u70ef\u5438\u9644<\/p>\n

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

\u5728\u8fd9\u4e2a\u5de5\u4f5c\u4e2d\uff0c\u4f5c\u8005\u8bc1\u660e\u4e86\u6838\u58f3\u50ac\u5316\u5242\u6bd4\u5408\u91d1\u58f3\u50ac\u5316\u5242\u5177\u6709\u66f4\u9ad8\u7684\u6d3b\u6027\uff0c\u5b83\u4eec\u7684\u50ac\u5316\u6027\u80fd\u53d6\u51b3\u4e8e\u58f3\u539a\u5ea6\uff0c\u800c\u4e14\u91d1\u6838Pd\u58f3\u50ac\u5316\u5242\u7684\u6027\u80fd\u751a\u81f3\u4e0e\u7eafPd\u90fd\u4e0d\u4e00\u6837\u3002\u8fd9\u4e2a\u7814\u7a76\u7a81\u51fa\u4e86\u8c03\u8282\u53cc\u91d1\u5c5e\u50ac\u5316\u5242\u4e2d\u539f\u5b50\u5206\u5e03\u7684\u91cd\u8981\u6027\uff0c\u5e76\u4e3a\u5408\u7406\u8bbe\u8ba1\u5177\u6709\u6700\u4f73\u534f\u540c\u6027\u80fd\u7684\u53cc\u91d1\u5c5e\u50ac\u5316\u5242\u5960\u5b9a\u4e86\u57fa\u7840\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5<\/b><\/strong>\uff1aUnlocking synergy in bimetallic catalysts by core-shell design. Nat. Mater., <\/em>202<\/strong>1<\/strong>, DOI:10.1038\/s41563-021-00996-3<\/p>\n

\u672c\u6587\u7531\u6750\u6599\u4eba\u5b66\u672f\u7ec4tt\u4f9b\u7a3f\uff0c\u6750\u6599\u725b\u6574\u7406\u7f16\u8f91\u3002 \u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"

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