{"id":107588,"date":"2017-10-22T06:30:33","date_gmt":"2017-10-21T22:30:33","guid":{"rendered":"\/\/m.iemloyee.com\/?p=107588"},"modified":"2017-10-19T19:20:28","modified_gmt":"2017-10-19T11:20:28","slug":"jacs%ef%bc%9a%e6%b7%b7%e5%90%88%e4%bb%b7%e6%80%81reo%e7%ba%b3%e7%b1%b3%e9%a2%97%e7%b2%92%e7%9a%84%e5%8f%af%e6%8e%a7%e5%85%89%e8%87%b4%e5%8f%91%e5%85%89%e5%8f%8a%e5%85%89%e5%82%ac%e5%8c%96%e6%b4%bb","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=107588","title":{"rendered":"JACS\uff1a\u6df7\u5408\u4ef7\u6001ReO\u7eb3\u7c73\u9897\u7c92\u7684\u53ef\u63a7\u5149\u81f4\u53d1\u5149\u53ca\u5149\u50ac\u5316\u6d3b\u6027"},"content":{"rendered":"

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

\u5177\u6709\u6574\u4e2a\u53ef\u89c1\u5149\u533a\u53ef\u8c03\u63a7\u53d1\u5149\u6027\u8d28\u7684\u7eb3\u7c73\u9897\u7c92(NPs)\u662f\u751f\u7269\u6210\u50cf\u548c\u5404\u79cd\u5149\u7535\u5b50\u5668\u4ef6(\u6ce2\u957f\u53ef\u8c03\u6fc0\u5149\u3001\u53d1\u5149\u5668\u4ef6\u548c\u592a\u9633\u80fd\u8f6c\u6362\u5668\u4ef6\u7b49)\u7684\u7406\u60f3\u6750\u6599\u3002\u901a\u5e38\uff0cNPs\u53d1\u5c04\u6ce2\u957f\u7684\u8c03\u63a7\u65b9\u6cd5\u4e3b\u8981\u662f\u6539\u53d8\u9897\u7c92\u5c3a\u5bf8\u3001\u91c7\u7528\u4e0d\u540c\u7684\u63ba\u6742\u5242\u3001\u4fee\u9970\u8868\u9762\u72b6\u6001\u7b49\uff0c\u4f8b\u5982\u78b3\u91cf\u5b50\u70b9\u53ef\u5229\u7528\u8131\u6c34\u5242\u6216\u8fd8\u539f\u5242\u5bf9\u8868\u9762\u8fdb\u884c\u4fee\u9970\uff0c\u83b7\u5f97\u53ef\u8c03\u63a7\u7684\u53d1\u5c04\u5149\u8c31\u3002\u7136\u800c\uff0c\u4e0a\u8ff0\u5149\u8c31\u8c03\u63a7\u65b9\u6cd5\u5f80\u5f80\u76f8\u5bf9\u7e41\u7410\uff0c\u5982\u679c\u80fd\u591f\u4f9d\u8d56\u7eb3\u7c73\u9897\u7c92\u672c\u4f53\u6027\u8d28\u5b9e\u73b0\u53d1\u5c04\u5149\u8c31\u7684\u8c03\u63a7\u5c06\u5177\u6709\u5341\u5206\u91cd\u8981\u7684\u79d1\u5b66\u610f\u4e49\u548c\u5e94\u7528\u4ef7\u503c\u3002<\/p>\n

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

\u8fd1\u65e5\uff0c\u97e9\u56fd\u851a\u5c71\u56fd\u7acb\u79d1\u5b66\u6280\u672f\u5927\u5b66<\/strong>(UNIST)Kwang S. Kim<\/strong>\u548c<\/strong>Bartosz A. Grzybowski <\/strong>\u6559\u6388<\/strong> (<\/strong>\u5171\u540c\u901a\u8baf\u4f5c\u8005<\/strong>)<\/strong>\u7b49\u4eba\u5728J. Am. Chem. Soc.<\/strong>\u53d1\u8868\u4e86\u9898\u4e3a\u201cTunable Photoluminescence across the Visible Spectrum and Photocatalytic Activity of Mixed-Valence Rhenium Oxide Nanoparticles\u201d<\/strong>\u7684\u7814\u7a76\u8bba\u6587\uff0c\u62a5\u9053\u4e86\u6df7\u5408\u4ef7\u6001\u6c27\u5316\u94fc\u7eb3\u7c73\u9897\u7c92(MVReO NPs)\u4f9d\u8d56\u672c\u4f53\u6027\u8d28\u5b9e\u73b0\u53d1\u5c04\u5149\u8c31\u8c03\u63a7\u7684\u6700\u65b0\u6210\u679c\u3002\u7814\u7a76\u56e2\u961f\u901a\u8fc7Re2<\/sub>O7<\/sub>\u524d\u9a71\u4f53\u7684\u76f4\u63a5\u70ed\u5206\u89e3\u6210\u529f\u5236\u5907\u4e86\u5177\u6709\u4e0d\u540c\u6c27\u5316\u6001\u7684\u6c27\u5316\u94fc\u7eb3\u7c73\u9897\u7c92\u3002\u65f6\u95f4\u5206\u8fa8\u53d1\u5c04\u8c31\u548cDFT\u8ba1\u7b97\u8868\u660e\uff0cMVReO NPs\u5177\u6709IV\u3001VI\u3001VII\u7684\u4e0d\u540c\u6c27\u5316\u6001\uff0c\u56e0\u800c\u5177\u6709\u591a\u79cd\u53d1\u5c04\u6001\uff0c\u53ef\u4ee5\u88ab\u4e0d\u540c\u6ce2\u957f\u6fc0\u53d1\u5149\u6fc0\u53d1\uff0c\u4ea7\u751f\u8986\u76d6\u6574\u4e2a\u53ef\u89c1\u5149\u533a\u7684\u53ef\u8c03\u63a7\u53d1\u5c04\u5149\u8c31\uff0c\u5de7\u5999\u5730\u5b9e\u73b0\u4e86\u7eb3\u7c73\u9897\u7c92\u672c\u4f53\u6027\u8d28\u5bf9\u53d1\u5c04\u5149\u8c31\u7684\u8c03\u63a7\u3002\u7814\u7a76\u56e2\u961f\u8fdb\u4e00\u6b65\u5c06\u5176\u7528\u4e8e\u7532\u57fa\u6a59\u6eb6\u6db2\u7684\u5149\u50ac\u5316\u5206\u89e3\uff0c\u5728\u53ef\u89c1\u5149\u533a\u8868\u73b0\u51fa\u4e86\u4f18\u4e8e\u5546\u7528TiO2<\/sub>\u7eb3\u7c73\u9897\u7c92\u7684\u5149\u50ac\u5316\u6d3b\u6027\u3002\u4e0d\u8fc7\uff0cMVReO NPs\u5149\u8c31\u8c03\u63a7\u7684\u5b9e\u73b0\u4e25\u91cd\u727a\u7272\u4e86\u5176\u91cf\u5b50\u4ea7\u7387\uff0c\u8fdc\u4f4e\u4e8e\u78b3\u91cf\u5b50\u70b9\u548c\u4f20\u7edf\u7684CdSe\u3001CdS\u7684\u91cf\u5b50\u4ea7\u7387\uff0c\u9700\u8981\u4ece\u4e0d\u540c\u6c27\u5316\u6001\u6bd4\u4f8b\u7684\u63a7\u5236\u548c\u63ba\u6742\u5176\u4ed6\u8fc7\u6e21\u91d1\u5c5e\u7b49\u65b9\u9762\u6765\u6539\u5584\u3002<\/p>\n

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

\u56fe<\/strong>1 MVReO<\/strong>\u7eb3\u7c73\u9897\u7c92\u7684\u7ed3\u6784\u53ca\u53ef\u63a7\u53d1\u5149<\/strong><\/p>\n

\"\"<\/p>\n

(a-d) NPs\u7684(a)TEM\u548c(b-d)HR-TEM\u56fe\u3002\u56fe(c)\u548c\u56fe(d)\u4e2d\u7684\u63d2\u56fe\u5206\u522b\u4e3aNP\u8fb9\u7f18(b\u4e2d\u7684\u7ea2\u8272\u77e9\u5f62\u533a\u57df)\u548c\u4e2d\u5fc3(b\u4e2d\u7684\u7ea2\u8272\u77e9\u5f62\u533a\u57df)\u7684\u9009\u533a\u7535\u5b50\u884d\u5c04(SAED)\u82b1\u6837\uff1b<\/p>\n

(e)\u5206\u6563\u5728\u4e59\u9187\u4e2d\u7684NPs\u7531\u4e0d\u540c\u6ce2\u957f\u6fc0\u53d1\u5149(\u4ece\u5de6\u5230\u53f3\u5206\u522b\u4e3a365\u3001405\u3001445\u3001532\u548c650nm)\u6fc0\u53d1\u5f97\u5230\u7684\u53d1\u5c04\u5149\u7684\u7167\u7247\uff1b<\/p>\n

(f)\u7eb3\u7c73\u9897\u7c92\u6c89\u79ef\u5728\u73bb\u7483\u57fa\u4f53\u4e0a\u5206\u522b\u7531405\u3001500\u548c590nm\u6fc0\u53d1\u7684STED\u56fe\uff1b\u56fe\u4e2d\u6240\u6709\u9897\u7c92\u7684\u53d1\u5c04\u6ce2\u957f\u662f\u76f8\u540c\u7684\uff0c\u4e0d\u540c\u989c\u8272\u662f\u4eba\u4e3a\u7740\u8272\u4ee5\u793a\u533a\u5206\u3002<\/p>\n

\u56fe<\/strong>2 MVReO<\/strong>\u7eb3\u7c73\u9897\u7c92\u7684\u7ec4\u6210<\/strong><\/p>\n

\"\"<\/p>\n

(a)\u76f4\u5f84\u4e3aca. 20nm\u7684\u9897\u7c92(\u79bb\u5fc3\u5206\u79bb)\u7684XPS\u8c31\uff1b<\/p>\n

(b)\u6839\u636e(a)\u4e2d\u6570\u636e\u5bf9Re(IV)\u3001Re(VI)\u548cRe(VII)\u542b\u91cf\u7684\u5b9a\u91cf\uff1b<\/p>\n

(c)\u5546\u7528Re2<\/sub>O7<\/sub>\u3001ReO3<\/sub>\u3001ReO2<\/sub>\u548c\u672c\u5b9e\u9a8c\u5236\u5907\u7684\u4e0d\u540c\u7c92\u5f84MVReO\u7684XANES\u8c31\uff1b<\/p>\n

(d)\u4e0d\u540c\u5c3a\u5bf8MVReO\u7eb3\u7c73\u9897\u7c92\u7684EXAFS\u8c31\u3002<\/p>\n

\u56fe<\/strong>3 MVReO<\/strong>\u7eb3\u7c73\u9897\u7c92\u7684\u5149\u5b66\u6027\u8d28<\/strong><\/p>\n

\"\"<\/p>\n

(a)\u5546\u7528Re2<\/sub>O7<\/sub>(\u9ed1\u7ebf)\u3001Re2<\/sub>O3<\/sub>(\u7ea2\u7ebf)\u3001ReO2<\/sub>(\u84dd\u7ebf)\u548cMVReO\u7eb3\u7c73\u9897\u7c92(\u6a59\u7ebf)\u5206\u6563\u5728\u6b63\u5df1\u70f7\u4e2d\u7684UV-vis\u5438\u6536\u8c31\uff1b<\/p>\n

(b)\u4e0d\u540c\u6ce2\u957f(330\u5230630nm)\u6fc0\u53d1~20nm\u7684MVReO\u7eb3\u7c73\u9897\u7c92\u7684\u5f52\u4e00\u5316\u8367\u5149\u5149\u8c31\uff1b<\/p>\n

(c)\u5728\u4e0d\u540c\u53d1\u5c04\u6ce2\u957f(400-600nm)\u76d1\u6d4b\u5230\u768420nm MVReO\u7eb3\u7c73\u9897\u7c92\u7684\u5f52\u4e00\u5316\u6fc0\u53d1\u5149\u8c31\uff1b<\/p>\n

(d)\u5728\u4e0d\u540c\u76d1\u6d4b\u6ce2\u957f(440\u3001490\u548c580nm)\u4e0b\uff0c20nm\u7684MVReO\u7eb3\u7c73\u9897\u7c92\u5206\u6563\u57281-\u5341\u516b\u70ef\u4e2d\u7684\u8367\u5149\u52a8\u529b\u5b66\u66f2\u7ebf\u3002\u6fc0\u53d1\u6ce2\u957f\u4e3a375nm\uff0c\u5b9e\u7ebf\u662f\u5b9e\u9a8c\u6570\u636e\u7684\u975e\u6307\u6570\u62df\u5408\uff1b<\/p>\n

(e)\u5728\u4e0d\u540c\u65f6\u95f4\u5ef6\u8fdf\u4e0b\uff0cMVReO\u7eb3\u7c73\u9897\u7c92\u7684\u5f52\u4e00\u5316\u65f6\u95f4\u5206\u8fa8PL\u8c31\uff1b<\/p>\n

(f)\u4e0d\u540c\u6fc0\u53d1\u6ce2\u957f(375 (\u9ed1\u8272)\u3001450(\u7ea2\u8272)\u3001510nm(\u84dd\u8272))\u4e0b\uff0cMVReO\u7eb3\u7c73\u9897\u7c92\u7684\u4f9d\u65f6PL\u6781\u503c\uff1b<\/p>\n

(g)\u5728\u4e0d\u540c\u6ce2\u957f\u4e0b\uff0cMVReO\u7eb3\u7c73\u9897\u7c92\u5206\u6563\u57281-\u5341\u516b\u70ef\u4e2d\u7684\u98de\u79d2\u5206\u8fa8\u8367\u5149\u52a8\u529b\u5b66\u66f2\u7ebf\u3002\u6fc0\u53d1\u6ce2\u957f375nm\uff0c\u76d1\u6d4b\u6ce2\u957f\u5206\u522b\u4e3a410\u3001440\u3001470nm\u3002<\/p>\n

\u56fe<\/strong>4 <\/strong>\u53ef\u89c1\u5149\u8f90\u7167\u4e0b<\/strong>MVReO<\/strong>\u7eb3\u7c73\u9897\u7c92\u548c<\/strong>P25 TiO2<\/sub><\/strong>\u5bf9\u7532\u57fa\u6a59\u7684\u5149\u964d\u89e3\u4f5c\u7528<\/strong><\/p>\n

\"\"<\/p>\n

(a-c)\u7ecf5mW LED\u7167\u5c044h\u540e\u76845\u03bcM\u7532\u57fa\u6a59\u6eb6\u6db2\u7684\u7167\u7247\uff1a(a)\u4e0d\u542b\u4efb\u4f55\u7eb3\u7c73\u9897\u7c92\uff0c(b)\u542bP25 TiO2<\/sub>\uff0c(c)\u542b\u76f8\u540c\u91cf\u7c7b\u4f3c\u5c3a\u5bf8MVReO\u7eb3\u7c73\u9897\u7c92\uff1b<\/p>\n

(d)\u7532\u57fa\u6a59\u5149\u50ac\u5316\u5206\u89e3\u7684\u5b9a\u91cf\u6570\u636e\u3002<\/p>\n

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

\u672c\u6587\u901a\u8fc7Re2<\/sub>O7<\/sub>\u524d\u9a71\u4f53\u7684\u76f4\u63a5\u70ed\u5206\u89e3\u5408\u6210\u4e86MVReO\u7eb3\u7c73\u9897\u7c92\uff0c\u5e76\u4e14\u57fa\u4e8eRe\u7684\u4e0d\u540c\u6c27\u5316\u6001\u5f00\u542f\u4e86\u8d5d\u5e26\u9699\uff0c\u5b9e\u73b0\u4e86\u4e0d\u540c\u6fc0\u53d1\u6ce2\u957f\u4e0b\u7684\u5168\u53ef\u89c1\u5149\u533a\u53d1\u5c04\u5149\u8c31\u7684\u8c03\u63a7\u3002\u672c\u6587\u7684\u7814\u7a76\u601d\u8def\u5728\u5176\u4ed6\u591a\u91cd\u6c27\u5316\u6001\u7684\u5143\u7d20(Mn\u3001Pb\u3001Co\u7b49)\u7684\u7814\u7a76\u4e2d\u4e5f\u5177\u6709\u6f5c\u5728\u7684\u666e\u9002\u6027\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1a<\/strong>Tunable Photoluminescence across the Visible Spectrum and Photocatalytic Activity of Mixed-Valence Rhenium Oxide Nanoparticles<\/a> (J. Am. Chem. Soc., 2017\uff0cDOI:\u00a010.1021\/jacs.7b07494)<\/p>\n

\u672c\u6587\u7531\u6750\u6599\u4eba\u7f16\u8f91\u90e8\u7eb3\u7c73\u5b66\u672f\u7ec4Roay\u4f9b\u7a3f\uff0c\u6750\u6599\u725b\u7f16\u8f91\u6574\u7406\u3002<\/p>\n

\u6750\u6599\u4eba\u7f51\u4e13\u6ce8\u4e8e\u8ddf\u8e2a\u6750\u6599\u9886\u57df\u79d1\u6280\u53ca\u884c\u4e1a\u8fdb\u5c55\uff0c\u8fd9\u91cc\u6c47\u96c6\u4e86\u5404\u5927\u9ad8\u6821\u7855\u535a\u751f\u3001\u4e00\u7ebf\u79d1\u7814\u4eba\u5458\u4ee5\u53ca\u884c\u4e1a\u4ece\u4e1a\u8005\uff0c\u5982\u679c\u60a8\u5bf9\u4e8e\u8ddf\u8e2a\u6750\u6599\u9886\u57df\u79d1\u6280\u8fdb\u5c55\uff0c\u89e3\u8bfb\u9ad8\u6c34\u5e73\u6587\u7ae0\u6216\u662f\u8bc4\u8ff0\u884c\u4e1a\u6709\u5174\u8da3\uff0c\u70b9\u6211\u52a0\u5165\u7f16\u8f91\u90e8<\/a>\u3002<\/p>\n

\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\u7bb1tougao@cailiaoren.com\u3002<\/p>\n

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