{"id":227204,"date":"2021-09-16T12:00:00","date_gmt":"2021-09-16T04:00:00","guid":{"rendered":"\/\/m.iemloyee.com\/?p=227204"},"modified":"2021-09-17T17:12:54","modified_gmt":"2021-09-17T09:12:54","slug":"%e5%8c%97%e5%a4%a7%e9%83%ad%e5%b0%91%e5%86%9bnature-communications%ef%bc%9a%e5%8d%95%e5%8e%9f%e5%ad%90pt-i3%e4%bd%8d%e7%82%b9%e5%9c%a8%e5%85%a8%e6%97%a0%e6%9c%bacs2sni6%e9%92%99%e9%92%9b%e7%9f%bf","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=227204","title":{"rendered":"\u5317\u5927\u90ed\u5c11\u519bNature Communications\uff1a\u5355\u539f\u5b50Pt-I3\u4f4d\u70b9\u5728\u5168\u65e0\u673aCs2SnI6\u9499\u949b\u77ff\u7684\u9ad8\u6548\u5149\u50ac\u5316\u5236\u6c22"},"content":{"rendered":"
\u80cc\u666f\u4ecb\u7ecd<\/b><\/strong><\/p>\n 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= CH3<\/sub>NH3<\/sub>)\uff0c\u5177\u6709\u5408\u6210\u65b9\u4fbf\u3001\u6210\u672c\u4f4e\u3001\u5149\u7535\u6027\u80fd\u4f18\u5f02\u7b49\u4f18\u70b9\uff0c\u5df2\u88ab\u8bc1\u660e\u662f\u4e00\u79cd\u6709\u524d\u9014\u7684\u5236\u6c22\u5149\u50ac\u5316\u5242\u3002\u7136\u800c\uff0cMAPbI3<\/sub>\u5149\u50ac\u5316\u6750\u6599\u4e2d\u4e0d\u7a33\u5b9a\u7684\u6709\u673a\u7ec4\u5206\u5728HI\u6eb6\u6db2\u4e2d\u5bb9\u6613\u53d7\u5230\u4e25\u91cd\u7684\u5149\u8150\u8680\uff0c\u8fd9\u4e25\u91cd\u9650\u5236\u4e86OLHPs\u5728\u5149\u50ac\u5316HI\u88c2\u89e3\u6c22\u4e2d\u7684\u5e94\u7528\u3002\u6b64\u5916\uff0cMAPbI3<\/sub>\u7684\u94c5\u6bd2\u6027\u4e5f\u6291\u5236\u4e86\u5176\u5b9e\u9645\u5e94\u7528\u3002\u5728\u5bfb\u627e\u65e0\u94c5\u9499\u949b\u77ff\u6750\u6599\u7684\u8fc7\u7a0b\u4e2d\uff0cSn\u57fa\u9499\u949b\u77ff\u6bd4Pb\u57fa\u9499\u949b\u77ff\u5177\u6709\u66f4\u7a84\u7684\u5149\u5b66\u5e26\u9699\uff0c\u8868\u660e\u5b83\u4eec\u7684\u5149\u5438\u6536\u8303\u56f4\u66f4\u5927\u3002\u7279\u522b\u662f\u5168\u65e0\u673aCs2<\/sub>SnI6<\/sub>\u9499\u949b\u77ff\u7531\u4e8e\u5176\u826f\u597d\u7684\u7a33\u5b9a\u6027\u3001\u4f18\u5f02\u7684\u5bfc\u7535\u6027\u548c\u5408\u9002\u7684\u80fd\u5e26\u6c34\u5e73\uff0c\u662f\u66f4\u53d7\u9752\u7750\u7684\u6750\u6599\u4f53\u7cfb\u3002<\/p>\n 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\u8fd1\u65e5\uff0c\u5317\u4eac\u5927\u5b66\u90ed\u5c11\u519b\u6559\u6388<\/b><\/strong>\u5728Nature Communications\u4e0a\u53d1\u8868\u6587\u7ae0\uff0c\u9898\u4e3a\u201cSingle-atom Pt-I3<\/sub>\u00a0sites on all-inorganic Cs2<\/sub>SnI6<\/sub>\u00a0perovskite for efficient photocatalytic hydrogen production\u201d\u3002\u6587\u7ae0\u62a5\u9053\u4e86\u4e00\u79cd\u951a\u5b9a\u5728\u65b0\u578b\u539f\u5b50\u5206\u6563\u7684Pt-I3<\/sub>\u7269\u79cd\u7684\u6297\u6eb6\u89e3\u73af\u4fdd\u578b\u9499\u949b\u77ff\uff08PtSA\/ Cs2<\/sub>SnI6<\/sub>\uff09\uff0c\u4ee5\u5b9e\u73b0\u5ba4\u6e29\u4e0b\u5728HI\u6c34\u6eb6\u6db2\u4e2d\u9ad8\u6548\u7684\u5149\u50ac\u5316\u5236\u6c22\u3002\u7814\u7a76\u4eba\u5458\u9996\u5148\u5728\u8fc7\u91cfHI\u6eb6\u6db2\u5b58\u5728\u4e0b\uff0c\u901a\u8fc7\u6c34\u70ed\u6cd5\u5408\u6210Cs2<\/sub>SnI6<\/sub>\uff0c\u7136\u540e\u6d78\u6e0dPt\u914d\u5408\u7269\u3002\u6700\u540e\u5728H2<\/sub>\/\u6c29\u6c14\u4e0b160 \u2103\u4e0b\u6d3b\u53161 h\uff0c\u5f97\u5230\u4e86PtSA\/Cs2<\/sub>SnI6<\/sub>\u3002PtSA\/Cs2<\/sub>SnI6<\/sub>\u4e2d\u7684Cs2<\/sub>SnI6<\/sub>\u5bf9HI\u6c34\u6eb6\u6db2\u7684\u8010\u53d7\u6027\u5927\u5927\u589e\u5f3a\uff0c\u8fd9\u5bf9\u4e8e\u5728\u9499\u949b\u77ff\u57faHI\u88c2\u89e3\u4f53\u7cfb\u4e2d\u5b9e\u73b0\u826f\u597d\u7684\u5149\u50ac\u5316\u7a33\u5b9a\u6027\u975e\u5e38\u91cd\u8981\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0cPtSA\/Cs2<\/sub>SnI6<\/sub>\u50ac\u5316\u5242\u8868\u73b0\u51fa\u5353\u8d8a\u7684\u5149\u50ac\u5316\u4ea7\u6c22\u6d3b\u6027\uff0cPtSA\/Cs2<\/sub>SnI6<\/sub>\u50ac\u5316\u5242\u5bf9\u6c22\u6c14\u7684\u5149\u50ac\u5316\u6d3b\u6027\u8fbe\u5230\u521b\u7eaa\u5f55\u768470.6 h\u2212<\/sup>1<\/sup>\/Pt\uff0c\u7ea6\u4e3aPt\u7eb3\u7c73\u9897\u7c92\u8d1f\u8f7d\u7684Cs2<\/sub>SnI6<\/sub>\u9499\u949b\u77ff\u50ac\u5316\u5242\u7684176.5\u500d\uff0c\u5e76\u5177\u6709\u4f18\u5f02\u7684\u5faa\u73af\u8010\u4e45\u6027\u3002\u7535\u8377-\u8f7d\u6d41\u5b50\u52a8\u529b\u5b66\u7814\u7a76\u548c\u7406\u8bba\u8ba1\u7b97\u8868\u660e\uff0cPtSA\/Cs2<\/sub>SnI6<\/sub>\u4e0a\u663e\u8457\u63d0\u9ad8\u7684\u5149\u50ac\u5316\u6027\u80fd\u6e90\u4e8ePt-I3<\/sub>\u4f4d\u70b9\u72ec\u7279\u7684\u914d\u4f4d\u7ed3\u6784\u548c\u7535\u5b50\u6027\u8d28\u3002\u91d1\u5c5e-\u8f7d\u4f53\u76f8\u4e92\u4f5c\u7528\u6548\u5e94\u5f3a\uff0c\u4e0d\u4ec5\u80fd\u6781\u5927\u5730\u4fc3\u8fdb\u7535\u8377\u5206\u79bb\u548c\u8f6c\u79fb\uff0c\u8fd8\u80fd\u6781\u5927\u5730\u964d\u4f4e\u4ea7\u6c22\u7684\u80fd\u91cf\u5792\u3002\u672c\u7814\u7a76\u4e3a\u9499\u949b\u77ff\u590d\u5408\u6750\u6599\u9ad8\u6548\u5236\u6c22\u5f00\u8f9f\u4e86\u65b0\u7684\u7814\u7a76\u65b9\u5411\u3002<\/p>\n \u56fe\u6587\u5bfc\u8bfb<\/b><\/strong><\/p>\n \u56fe1. Cs2<\/sub>SnI6<\/sub>\u7684\u80fd\u5e26\u7ed3\u6784\u53ca\u5176\u5728HI\u6c34\u6eb6\u6db2\u4e2d\u7684\u7a33\u5b9a\u6027\u3002<\/p>\n a. PtSA\/Cs2<\/sub>SnI6<\/sub>\u50ac\u5316\u5242\u7684\u5236\u5907\u5de5\u827a\u793a\u610f\u56fe\u3002<\/p>\n b. Cs2<\/sub>SnI6<\/sub>\u7684SEM\u56fe\u548cc\u7684XRD\u56fe\u3002<\/p>\n d.\u4e0d\u540c\u6e29\u5ea6\u4e0bCs2<\/sub>SnI6<\/sub>\u5728HI\u6c34\u6eb6\u6db2\u4e2d\u7684\u6eb6\u89e3\u5ea6\u3002<\/p>\n e.\u4e0d\u540c\u6d53\u5ea6HI\u6eb6\u6db2\u4e2dCs2<\/sub>SnI6<\/sub>\u7c89\u672b\u7684PXRD\u8c31\u56fe\u3002<\/p>\n Cs2<\/sub>SnI6<\/sub>\u7c89\u4f53\u7684\u7d2b\u5916-\u53ef\u89c1\u5438\u6536\u5149\u8c31\u3002<\/p>\n Cs2<\/sub>SnI6<\/sub>\u7684\u80fd\u5e26\u793a\u610f\u56fe\uff0cCs2<\/sub>SnI6<\/sub>\u5728\u53ef\u89c1\u5149\u7167\u5c04\u4e0b\u7684\u7535\u8377\u4ea7\u751f\u548c\u7535\u8377\u8f6c\u79fb\u8fc7\u7a0b\u3002<\/p>\n \u56fe2. PtSA\/Cs2<\/sub>SnI6<\/sub>\u7ed3\u6784\u8868\u5f81\u3002<\/p>\n PtSA\/Cs2<\/sub>SnI6<\/sub>\u7684a\u4f4e\u500d\u548cb\u9ad8\u500dHAADF-STEM\u56fe\u50cf\u5df2\u7ecf\u76f8\u5e94\u7684c\u00a0STEM-EDS\u80fd\u8c31\u56fe\u3002<\/p>\n d-h. PtSA\/Cs2<\/sub>SnI6<\/sub>\u7684XANES\u5206\u6790\u3002<\/p>\n i. PtSA\/Cs2<\/sub>SnI6<\/sub>\u7684XPS Pt 4f\u9ad8\u5206\u8fa8\u56fe\u8c31\u3002<\/p>\n \u56fe3.\u5177\u6709\u4f18\u5f02\u7684\u5149\u50ac\u5316\u6d3b\u6027\u548c\u7a33\u5b9a\u6027\u7684PtSA\/Cs2<\/sub>SnI6<\/sub>\u50ac\u5316\u5242\u3002<\/p>\n a. PtSA\/Cs2<\/sub>SnI6<\/sub>\u3001PtNP\/Cs2<\/sub>SnI6<\/sub>\u548cCs2<\/sub>SnI6<\/sub>\u50ac\u5316\u5242\u7684\u5149\u50ac\u5316\u6790\u6c22\u901f\u7387\u3002<\/p>\n b. PtSA\/Cs2<\/sub>SnI6<\/sub>\u548cPtNP\/Cs2<\/sub>SnI6<\/sub>\u50ac\u5316\u5242\u7684TOF\u3002<\/p>\n c. PtSA\/Cs2<\/sub>SnI6<\/sub>6\u50ac\u5316\u5242\u4e0e\u5176\u4ed6\u62a5\u9053\u7684\u8d1f\u8f7dPt\u5364\u5316\u7269\u9499\u949b\u77ff\u5149\u50ac\u5316\u5242\u7684TOF\u6bd4\u8f83\u3002<\/p>\n d. PtSA\/Cs2<\/sub>SnI6<\/sub>\u50ac\u5316\u5242\u7684\u5faa\u73af\u7a33\u5b9a\u6027\u3002<\/p>\n \u56fe4.\u7535\u8377\u8f7d\u5b50\u52a8\u529b\u5b66\u3002<\/p>\n Cs2<\/sub>SnI6<\/sub>\u3001PtNP\/Cs2<\/sub>SnI6<\/sub>\u3001PtSA\/Cs2<\/sub>SnI6<\/sub>\u50ac\u5316\u5242: a. \u7a33\u6001PL\u8c31;b. \u65f6\u95f4\u5206\u8fa8\u77ac\u6001PL\u8870\u51cf; c. \u5149\u7535\u6d41\u54cd\u5e94\u5149\u8c31; d. \u7535\u5316\u5b66\u963b\u6297\u8c31.<\/p>\n \u56fe5.\u7535\u8377\u5bc6\u5ea6\u5206\u5e03\u548c\u5409\u5e03\u65af\u80fd\u8ba1\u7b97\u3002<\/p>\n \u5149\u6fc0\u53d1\u524d\u540e\u7684\u7535\u8377\u5bc6\u5ea6\u5dee\u56fe:a. PtNP\/Cs2<\/sub>SnI6<\/sub>; b. PtSA\/Cs2<\/sub>SnI6<\/sub>\u3002<\/p>\n \u5c0f\u7ed3<\/b><\/strong><\/p>\n \u4e00\u7c7b\u5168\u65e0\u673a\u9499\u949b\u77ffPtSA\/Cs2<\/sub>SnI6<\/sub>\u5355\u539f\u5b50\u5149\u50ac\u5316\u5242\uff0c\u5728HI\u6c34\u6eb6\u6db2\u4e2d\u5b9e\u73b0\u9ad8\u6548\u5149\u50ac\u5316\u5236\u6c22\u3002HAADF-STEM\u3001XAFS\u548cXPS\u5149\u8c31\u7ed3\u679c\u8bc1\u5b9e\u4e86Cs2<\/sub>SnI6<\/sub>\u4e0a\u539f\u5b50\u5206\u6563\u7684Pt\u5355\u539f\u5b50\u5177\u6709\u660e\u786e\u7684Pt – I3<\/sub>\u7ed3\u6784\u3002\u7ed3\u5408\u7535\u8377\u8f7d\u6d41\u5b50\u52a8\u529b\u5b66\u7814\u7a76\u548cDFT\u8ba1\u7b97\uff0c\u53d1\u73b0Pt – I3<\/sub>\u7269\u79cd\u72ec\u7279\u7684\u914d\u4f4d\u7ed3\u6784\u548c\u7535\u5b50\u6027\u8d28\u6709\u52a9\u4e8eSMSI\u6548\u5e94\uff0c\u4fc3\u8fdb\u5149\u751f\u7535\u5b50\u4eceCs2<\/sub>SnI6<\/sub>\u8f6c\u79fb\u5230Pt\u5355\u539f\u5b50\uff0c\u540c\u65f6\u964d\u4f4e\u4e86\u5409\u5e03\u65af\u81ea\u7531\u80fd\uff0c\u52a0\u901f\u4e86\u5236\u6c22\u52a8\u529b\u5b66\u3002\u5f97\u76ca\u4e8e\u8fd9\u4e9b\u7ed3\u6784\u4f18\u52bf\uff0cPtSA\/Cs2<\/sub>SnI6<\/sub>\u50ac\u5316\u5242\u5bf9\u6c22\u6c14\u7684\u5149\u50ac\u5316\u6d3b\u6027\u8fbe\u5230\u521b\u7eaa\u5f55\u768470.6 h\u2212<\/sup>1<\/sup>\/Pt\uff0c\u7ea6\u4e3aPt\u7eb3\u7c73\u9897\u7c92\u8d1f\u8f7d\u7684Cs2<\/sub>SnI6<\/sub>\u9499\u949b\u77ff\u50ac\u5316\u5242\u7684176.5\u500d\uff0c\u521b\u9020\u4e86Pt\u8d1f\u8f7d\u91d1\u5c5e\u5364\u5316\u7269\u9499\u949b\u77ff\u5149\u50ac\u5316\u5242TOF\u65b0\u8bb0\u5f55\uff0c\u5e76\u5177\u6709\u4f18\u5f02\u7684\u5faa\u73af\u8010\u4e45\u6027\u3002\u8fd9\u4e9b\u7814\u7a76\u6210\u679c\u5bf9\u65b0\u578b\u91d1\u5c5e\u5355\u539f\u5b50-\u9499\u949b\u77ff\u5f02\u8d28\u7ed3\u6784\u5149\u50ac\u5316\u5242\u4f53\u7cfb\u7684\u5f00\u53d1\u53ca\u5176\u5728\u5149\u50ac\u5316\u9886\u57df\u7684\u53ef\u6301\u7eed\u5e94\u7528\u5177\u6709\u91cd\u8981\u610f\u4e49\u3002<\/p>\n
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