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\u3010\u5f15\u8a00\u3011<\/strong><\/span><\/p>\n 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\u03b1-Fe2<\/sub>O3<\/sub>\u4e3a\u95f4\u63a5\u80fd\u9699\uff08indirect bandgap\uff09\u534a\u5bfc\u4f53\uff0c\u81ea\u8eab\u5438\u5149\u80fd\u529b\u5dee\uff1b2.\u81ea\u8eab\u7535\u5bfc\u7387\u4f4e\uff0c\u7535\u8377\u5728\u5176\u5185\u90e8\u4f20\u5bfc\u8ddd\u79bb\u77ed\uff0c\u81f4\u4f7f\u5149\u751f\u7535\u5b50-\u7a7a\u7a74\u590d\u5408\u6982\u7387\u5927\uff1b3.\u8868\u9762\u4ea7\u6c27\u901f\u7387\u7f13\u6162\uff0c\u964d\u4f4e\u4e86\u8868\u9762\u7a7a\u7a74\u7684\u5229\u7528\u7387\u3002\u5982\u4f55\u540c\u65f6\u89e3\u51b3\u4ee5\u4e0a\u4e09\u4e2a\u95ee\u9898\u6210\u4e3a\u89e3\u51b3\u5149\u7535\u89e3\u6c34\u6280\u672f\u53d1\u5c55\u74f6\u9888\u7684\u5148\u51b3\u6761\u4ef6\u3002<\/p>\n \u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/span><\/p>\n \u8fd1\u65e5\uff0c\u4e2d\u5c71\u5927\u5b66\u7ae5\u53f6\u7fd4\u6559\u6388<\/strong><\/span>\uff08\u901a\u8baf\u4f5c\u8005\uff09\u8bfe\u9898\u7ec4\u8054\u5408\u7f8e\u56fd\u52a0\u5dde\u5927\u5b66\u5723\u514b\u9c81\u5179\u5206\u6821\uff08University of California, Santa Cruz\uff09\u674e\u8efc\uff08Yat Li\uff09\u526f\u6559\u6388<\/span><\/strong>\uff08\u901a\u8baf\u4f5c\u8005\uff09\u8bfe\u9898\u7ec4\u8fd1\u65e5\u62a5\u9053\u4e86\u4e00\u79cd\u5229\u7528\u5f62\u8c8c\u9501\u5b9a\u548c\u53cc\u5411\u63ba\u6742\u7684\u53cc\u91cd\u7b56\u7565\uff0c\u5e76\u5728\u5904\u7406\u540e\u7684\u03b1-Fe2<\/sub>O3<\/sub>\u7eb3\u7c73\u7ebf\u8868\u9762\u9644\u7740\u4ea7\u6c27\u50ac\u5316\u5242\u6210\u529f\u514b\u670d\u4e86\u03b1-Fe2<\/sub>O3<\/sub>\u5149\u9633\u6781\u81ea\u8eab\u7684\u4e09\u4e2a\u7f3a\u9677\uff0c\u5e76\u6781\u5927\u5730\u63d0\u5347\u4e86\u5176\u5149\u89e3\u6c34\u6027\u80fd\u3002\u76f8\u5173\u5de5\u4f5c\u8fd1\u671f\u53d1\u8868\u5728Nano Lett.<\/em><\/strong>\u4e0a\uff0c\u9898\u4e3a \u201cMorphology and Doping Engineering of Sn-Doped Hematite Nanowire Photoanodes\u201d\u3002<\/p>\n \u5c06\u03b1-Fe2<\/sub>O3<\/sub>\u5236\u5907\u4e3a\u7eb3\u7c73\u7ebf\u7ed3\u6784\u4ee5\u589e\u52a0\u5176\u53d7\u5149\u9762\u79ef\u3001\u7f29\u77ed\u5149\u751f\u7a7a\u7a74\u7684\u6269\u6563\u8ddd\u79bb\u662f\u63d0\u5347\u5176\u5149\u7535\u6027\u80fd\u7684\u4e00\u79cd\u4f20\u7edf\u65b9\u6cd5\u3002\u8fd1\u5341\u591a\u5e74\u6765\u7684\u903e\u767e\u9879\u7814\u7a76\u8868\u660e\u8fdb\u4e00\u6b65\u63d0\u51fa\uff0c\u9ad8\u6e29\u70ed\u5904\u7406\u53ef\u4ee5\u663e\u8457\u5730\u63d0\u5347\u751f\u5728\u6c1f\u63ba\u6742\u6c27\u5316\u9521\u73bb\u7483\uff08FTO\uff09\u4e0a\u7684\u03b1-Fe2<\/sub>O3<\/sub>\u7684\u5bfc\u7535\u6027\uff0c\u4ece\u800c\u52a0\u901f\u5149\u751f\u7535\u5b50\u7684\u5bfc\u51fa\uff0c\u51cf\u5c0f\u7535\u5b50-\u7a7a\u7a74\u590d\u5408\u6982\u7387\uff0c\u4ece\u800c\u63d0\u5347\u5149\u7535\u6027\u80fd\u3002\u8fd9\u662f\u56e0\u4e3a\u5728\u9ad8\u6e29\u5904\u7406\u65f6\uff0cFTO\u4e2d\u7684\u91d1\u5c5e\u79bb\u5b50\uff08Sn4+<\/sup>\u79bb\u5b50\uff09\u53ef\u6269\u6563\u81f3\u03b1-Fe2<\/sub>O3<\/sub>\u6676\u683c\u5185\u90e8\uff0c\u5f62\u6210\u9521\u63ba\u6742\u4ece\u800c\u63d0\u5347\u03b1-Fe2<\/sub>O3<\/sub>\u7684\u5bfc\u7535\u6027\u3002\u4f46\u662f\uff0c\u6b64\u6cd5\u96be\u4ee5\u63a7\u5236Sn4+<\/sup>\u7684\u6d53\u5ea6\u548c\u5206\u5e03\u5747\u5300\u7a0b\u5ea6\uff08\u9760\u8fd1FTO\u4e00\u4fa7\u7684\u63ba\u6742\u6d53\u5ea6\u8fdc\u8fdc\u9ad8\u4e8e\u8fdc\u79bbFTO\u7684\u4e00\u4fa7\uff09\uff0c\u65e0\u6cd5\u6574\u4f53\u51cf\u5c0f\u7535\u6781\u7535\u963b\u3002\u66f4\u4e3a\u4e25\u91cd\u7684\u662f\uff0c\u9ad8\u6e29\u5904\u7406\u4f1a\u5bfc\u81f4\u03b1-Fe2<\/sub>O3<\/sub>\u7684\u7eb3\u7c73\u7ebf\u5f62\u8c8c\u4ea7\u751f\u626d\u66f2\u548c\u5f62\u53d8\uff0c\u964d\u4f4e\u4e86\u6574\u4f53\uff08\u7279\u522b\u662f\u9635\u5217\u4e0b\u90e8\uff09\u7684\u53d7\u5149\u9762\u79ef\uff0c\u7ed9\u672c\u5df2\u5438\u5149\u6027\u80fd\u5dee\u7684\u03b1-Fe2<\/sub>O3<\/sub>\u96ea\u4e0a\u52a0\u971c\u3002\u800c\u672c\u7bc7\u5de5\u4f5c\u4e2d\uff0c\u4f5c\u8005\u4eec\u901a\u8fc7\u4e8c\u6c27\u5316\u7845\u8584\u819c\u5305\u8986\u03b1-Fe2<\/sub>O3<\/sub>\u7eb3\u7c73\u7ebf\u9635\u5217\u5b9e\u73b0\u4e86\u9ad8\u6e29\u5904\u7406\u540e\u7eb3\u7c73\u7ebf\u5f62\u8c8c\u7684\u7a33\u5b9a\u3002\u53e6\u5916\uff0c\u4f5c\u8005\u4eec\u8fd8\u5728\u9ad8\u6e29\u5904\u7406\u03b1-Fe2<\/sub>O3<\/sub>\u7eb3\u7c73\u7ebf\u9635\u5217\u524d\u5728\u5176\u9876\u7aef\u6ef4\u52a0\u56db\u6c2f\u5316\u9521\u6eb6\u6db2\u3002\u5982\u6b64\uff0c\u5728\u9ad8\u6e29\u5904\u7406\u65f6\uff0c\u9876\u7aef\u7684Sn4+<\/sup>\u548c\u5e95\u7aef\u5b58\u5728\u4e8eFTO\u4e2d\u7684Sn4+<\/sup>\u53ef\u5206\u522b\u81f3\u4e0a\u800c\u4e0b\u548c\u81f3\u4e0b\u800c\u4e0a\u5730\u5bf9\u6574\u4e2a\u7eb3\u7c73\u7ebf\u9635\u5217\u8fdb\u884c\u53cc\u5411\u4e14\u5747\u5300\u5730\u63ba\u6742\u3002\u7ecf\u8fc7\u6b64\u7b56\u7565\u7684\u5904\u7406\u540e\uff0c\u03b1-Fe2<\/sub>O3<\/sub>\u7eb3\u7c73\u7ebf\u9635\u5217\u5149\u9633\u6781\u7684\u5438\u5149\u6027\u80fd\u548c\u7535\u8377\u4f20\u5bfc\u6027\u80fd\u63a5\u8fd1\u9971\u548c\u3002\u5f53\u8fdb\u4e00\u6b65\u901a\u8fc7\u8d1f\u8f7d\u50ac\u5316\u5242\u52a0\u901f\u5176\u6790\u6c27\u52a8\u529b\u5b66\u8fc7\u7a0b\u540e\uff0c\u5176\u5149\u7535\u6d41\u5bc6\u5ea6\u7684\u5cf0\u503c\u9ad8\u8fbe2.2 mA cm-2<\/sup> \uff080.23 V vs.<\/em> Ag\/AgCl, 1 M KOH\uff09\u3002\u672c\u5de5\u4f5c\u89e3\u51b3\u4e86\u03b1-Fe2<\/sub>O3<\/sub>\u5728\u5149\u7535\u89e3\u6c34\u7814\u7a76\u9886\u57df\u7684\u96be\u9898\uff0c\u5411\u5b9e\u73b0\u5176\u7406\u8bba\u6027\u80fd\u7684\u65b9\u5411\u8fc8\u51fa\u4e86\u91cd\u8981\u4e00\u6b65\u3002<\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/span><\/p>\n \uff08\u6ce8\uff1a\u56fe\u7247\u6765\u81ea\u6587\u540e\u6587\u732e\u5e76\u7531\u8bba\u6587\u4f5c\u8005\u63d0\u4f9b\uff09<\/p>\n \u56fe\u4e00\uff1a\u4f20\u7edf\u7684\u6c27\u5316\u94c1\u6d3b\u5316\u65b9\u5f0f\u548c\u672c\u5de5\u4f5c\u5c55\u793a\u7684\u6d3b\u5316\u65b9\u5f0f\u6bd4\u8f83<\/strong><\/span><\/p>\n \u4e0a\uff1a\u4f20\u7edf\u7684\u9ad8\u6e29\u6d3b\u5316\u6cd5\u4f1a\u5bfc\u81f4\u7eb3\u7c73\u7ebf\u5f62\u8c8c\u7684\u7834\u574f\u53ca\u63ba\u6742\u7684\u4e0d\u5747\u6027\u3002<\/p>\n \u4e0b\uff1a\u672c\u5de5\u4f5c\u5c55\u793a\u7684\u65b9\u6cd5\uff1a\u901a\u8fc7\u4e8c\u6c27\u5316\u7845\u5916\u5c42\u5305\u8986\u548c\u5728\u7eb3\u7c73\u9635\u5217\u9876\u7aef\u6dfb\u52a0Sn4+<\/sup>\u8fdb\u884c\uff0c\u7eb3\u7c73\u7ebf\u7684\u5f62\u8c8c\u5728\u9ad8\u6e29\u6d3b\u5316\u540e\u5f62\u8c8c\u7ef4\u6301\u4e14\u63ba\u6742\u5206\u5e03\u5747\u5300\u3002<\/p>\n \u56fe\u4e8c\uff1a\u6837\u54c1\u5f62\u8c8c\u3001\u5143\u7d20\u5206\u5e03\u8868\u5f81<\/strong><\/span><\/p>\n \uff08a\uff09\u4f20\u7edf\u6d3b\u5316\u65b9\u5f0f\u7684\u03b1-Fe2<\/sub>O3<\/sub>\u626b\u63cf\u7535\u955c\u56fe\u3002\u6bcf\u6839\u7eb3\u7c73\u7ebf\u957f\u5ea6\u51cf\u5c0f\uff0c\u5f62\u72b6\u626d\u66f2\u3002<\/p>\n \uff08b\uff09\u7ecf\u5f62\u8c8c\u3001\u63ba\u6742\u8c03\u63a7\u7684\u03b1-Fe2<\/sub>O3<\/sub>\u626b\u63cf\u7535\u955c\u56fe\uff0c\u5176\u9635\u5217\u7ed3\u6784\u5728\u9ad8\u6e29\u5904\u7406\u540e\u4ecd\u7136\u4fdd\u6301\u3002<\/p>\n \uff08c\uff09\u4f20\u7edf\u6d3b\u5316\u65b9\u5f0f\u7684\u03b1-Fe2<\/sub>O3<\/sub>\u7eb3\u7c73\u7ebf\u7684\u900f\u5c04\u7535\u5b50\u7535\u955c\u56fe\u3002<\/p>\n \uff08d\uff09\u7ecf\u5f62\u8c8c\u3001\u63ba\u6742\u8c03\u63a7\u4e0b\u03b1-Fe2<\/sub>O3<\/sub>\u7eb3\u7c73\u7ebf\u7684\u900f\u5c04\u7535\u5b50\u7535\u955c\u56fe\u3002<\/p>\n \uff08e-g\uff09\u7ecf\u5f62\u8c8c\u3001\u63ba\u6742\u8c03\u63a7\u4e0b\u03b1-Fe2<\/sub>O3<\/sub>\u7eb3\u7c73\u7ebf\u7684\u80fd\u8c31\u5143\u7d20\u793a\u610f\u56fe\uff0c\u8868\u660eSn\u63ba\u6742\u5206\u5e03\u5747\u5300\u3002<\/p>\n \u56fe\u4e09\u3001\u63ba\u6742\u8868\u5f81\uff08\u4f20\u7edf\u6d3b\u5316\u6cd5\uff1aSn-Fe2<\/sub>O3<\/sub>\uff1b\u53cc\u7b56\u7565\u5904\u7406\u6cd5\uff1aE-I-Sn-Fe2<\/sub>O3<\/sub>\uff09<\/strong><\/span><\/p>\n \uff08a\uff09X-\u5c04\u7ebf\u5149\u7535\u5b50\u8c31\u6bd4\u8f83\u3002\u7ed3\u679c\u8868\u660e\uff0cE-I-Sn-Fe2<\/sub>O3<\/sub>\u8868\u9762\u9521\u542b\u91cf\u8f83Sn-Fe2<\/sub>O3<\/sub>\u8868\u9762\u9ad8\u3002<\/p>\n \uff08b\uff09\u4e8c\u6b21\u79bb\u5b50\u8d28\u8c31\u5206\u6790\u9521\u5143\u7d20\u6df1\u5ea6\u5206\u5e03\u6bd4\u8f83\uff1aE-I-Sn-Fe2<\/sub>O3<\/sub>\u5185\u90e8\uff08>100 nm\uff09\u7684\u9521\u63ba\u6742\u542b\u91cf\u6bd4Sn-Fe2<\/sub>O3<\/sub>\u5185\u90e8\u9ad8\u7ea6\u4e94\u500d\u3002E-I-Sn-Fe2<\/sub>O3<\/sub>\u9876\u90e8\uff08<100 nm\uff09\u9ad8Sn\u542b\u91cf\u53ef\u80fd\u662f\u56e0\u4e3a\u56db\u6c2f\u5316\u9521\u6eb6\u6db2\u5728\u7eb3\u7c73\u7ebf\u9635\u5217\u8868\u9762\u6c89\u79ef\u4e0d\u5747\u9020\u6210\u7684\u3002\u5177\u4f53\u89e3\u91ca\u8bf7\u53c2\u89c1\u6587\u4e2dFigure S6\u56fe\u53ca\u76f8\u5173\u8ba8\u8bba\u3002<\/p>\n \u56fe\u56db\uff1a\u6837\u54c1\u7684\u5149\u7535\u6027\u80fd\u7814\u7a76<\/strong><\/span><\/p>\n \uff08a\uff09\u4e0d\u540c\u5149\u7167\u6761\u4ef6\u4e0b\uff08\u6b63\u7167\u548c\u53cd\u7167\uff09\u5404\u6837\u54c1\u7684\u5149\u7535\u6d41\u5bc6\u5ea6-\u5916\u52a0\u7535\u538b\u66f2\u7ebf\u3002\u53c2\u6bd4\u7535\u6781\uff1aAg\/AgCl\uff1b1 M KOH\uff1b\u626b\u901f\uff1a20 mV s-1<\/sup>\u3002<\/p>\n \uff08b\uff09\u5165\u5c04\u5149\u5149\u5b50-\u7535\u5b50\u8f6c\u5316\u6548\u7387\uff08IPCE\uff09\u6bd4\u8f83\u3002<\/p>\n \u56fe\u4e94\uff1a\u9644\u7740\u4ea7\u6c27\u50ac\u5316\u5242\u540e\u7684\u03b1-Fe2<\/sub>O3<\/sub>\u5149\u7535\u6027\u80fd<\/strong><\/span><\/p>\n \u901a\u8fc7\u6c27\u5316\u94b4\uff08\u4e00\u79cd\u6790\u6c27\u50ac\u5316\u5242\uff09\u7684\u8d1f\u8f7d\u548c\u6539\u6027\uff08\u7eff\u7ebf\uff09\uff0c\u8d77\u504f\u7535\u4f4d\u51cf\u5c0f\uff0c\u540c\u7b49\u5916\u52a0\u7535\u538b\u4e0b\u7684\u5149\u7535\u6d41\u5347\u9ad8\u3002<\/p>\n \u3010\u603b\u7ed3\u3011<\/strong><\/span><\/p>\n \u672c\u5de5\u4f5c\u57fa\u4e8e\u03b1-Fe2<\/sub>O3<\/sub>\u9762\u4e34\u7684\u68d8\u624b\u95ee\u9898\u8fdb\u884c\u4e86\u9488\u5bf9\u6027\u7684\u6539\u8fdb\u548c\u7814\u7a76\uff0c\u901a\u8fc7\u201c\u9501\u5b9a\u5f62\u8c8c\u201d\u53ca\u201c\u53cc\u5411\u63ba\u6742\u201d\u8fd9\u4e24\u628a\u201c\u5229\u5203\u201d\uff0c\u5bf9\u5236\u7ea6\u03b1-Fe2<\/sub>O3<\/sub>\u6027\u80fd\u7684\u5149\u5438\u6536\u3001\u7535\u8377\u4f20\u5bfc\u6027\u8d28\u8fdb\u884c\u4e86\u6539\u826f\u3002\u6b64\u5916\uff0c\u901a\u8fc7\u8d1f\u8f7d\u4ea7\u6c27\u50ac\u5316\u5242\uff0c\u52a0\u901f\u4e86\u8868\u9762\u4ea7\u6c27\u52a8\u529b\u5b66\u8fc7\u7a0b\uff0c\u6210\u529f\u514b\u670d\u4e86\u5236\u7ea6\u03b1-Fe2<\/sub>O3<\/sub>\u5149\u9633\u6781\u5e94\u7528\u7684\u4e09\u4e2a\u969c\u788d\u3002\u8be5\u5de5\u4f5c\u5c55\u793a\u7684\u65b9\u6cd5\u53ef\u5bf9\u03b1-Fe2<\/sub>O3<\/sub>\u5728\u5176\u4ed6\u9886\u57df\uff08\u8bf8\u5982\u5149\u50ac\u5316\u3001\u7535\u6c60\u548c\u8d85\u7ea7\u7535\u5bb9\u5668\uff09\u7684\u6539\u6027\u5de5\u4f5c\u63d0\u4f9b\u53c2\u8003\u3002<\/p>\n
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