{"id":138348,"date":"2018-05-15T06:30:11","date_gmt":"2018-05-14T22:30:11","guid":{"rendered":"\/\/m.iemloyee.com\/?p=138348"},"modified":"2018-05-19T19:50:41","modified_gmt":"2018-05-19T11:50:41","slug":"%e4%b8%8a%e4%ba%a4angew-chem-int-ed-%ef%bc%9a%e6%b0%b4%e7%83%ad%e6%b3%95%e7%a2%b1%e5%88%bb%e8%9a%80%e5%90%88%e6%88%90%e6%97%a0%e6%b0%9f%e9%ab%98%e7%ba%afmxene-ti3c2tx%ef%bc%88t-oh-o%ef%bc%89","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=138348","title":{"rendered":"\u4e0a\u4ea4Angew. Chem. Int. Ed.\uff1a\u6c34\u70ed\u6cd5\u78b1\u523b\u8680\u5408\u6210\u65e0\u6c1f\u9ad8\u7eafMxene Ti3C2Tx\uff08T= -OH, -O\uff09"},"content":{"rendered":"
\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n \u4e8c\u7ef4\uff082D\uff09\u6750\u6599\u7531\u4e8e\u5176\u72ec\u7279\u7684\u7535\u5b66\u3001\u529b\u5b66\u548c\u5149\u5b66\u6027\u80fd\u53d7\u5230\u5404\u56fd\u7814\u7a76\u5b66\u8005\u7684\u6781\u5927\u5173\u6ce8\u30022011\u5e74\uff0c\u7f8e\u56fd\u5fb7\u96f7\u585e\u5c14\u5927\u5b66\u7684\u7814\u7a76\u8005\u91c7\u7528\u4e86\u4e00\u79cd\u9009\u62e9\u6027\u523b\u8680\u5757\u4f53\u6750\u6599\u7684\u65b9\u6cd5\u5236\u5907\u51fa\u4e86\u4e00\u7c7b\u65b0\u578b\u4e8c\u7ef4\u6750\u6599\uff1aMXene\u3002\u8be5\u65b9\u6cd5\u901a\u8fc7\u523b\u8680MAX\u76f8\u6750\u6599\uff08\u4e00\u79cd\u4e09\u5143\u5c42\u72b6\u7ed3\u6784\u6750\u6599\uff09\u4e2d\u7684A\u539f\u5b50\u5c42\u4ece\u800c\u83b7\u5f97\u8fc7\u6e21\u91d1\u5c5e\u78b3\/\u6c2e\u5316\u7269\u4e8c\u7ef4\u6750\u6599\u3002 MXene\u7684\u4e00\u822c\u901a\u5f0f\u4e3aMn+1<\/sub>Xn<\/sub>Tx<\/sub>\uff0c\u5176\u4e2dM\u662f\u8fc7\u6e21\u91d1\u5c5e\uff0cX\u662f\u78b3\uff08C\uff09\u3001\u6c2e\uff08N\uff09\u6216\u8005\u78b3\u6c2e\uff08CN\uff09\uff0cn=1, 2, 3\uff0cT\u5219\u4ee3\u8868\u8868\u9762\u7aef\u57fa\uff0c\u5982-O\uff0c-OH\uff0c\u6216-F\u7b49\u3002\u76ee\u524dMXene\u5728\u8d85\u7ea7\u7535\u5bb9\u5668\uff0c\u9502\u79bb\u5b50\/\u94a0\u79bb\u5b50\u7535\u6c60\u3001\u7535\u78c1\u5c4f\u853d\u3001\u6c61\u6c34\u51c0\u5316\u3001\u7535\u50ac\u5316\u7b49\u9886\u57df\u90fd\u5c55\u73b0\u51fa\u5353\u8d8a\u7684\u5e94\u7528\u524d\u666f\u3002<\/p>\n \u7136\u800c\u76ee\u524dMXene\u7684\u5408\u6210\u65b9\u6cd5\u4e00\u822c\u91c7\u7528\u9ad8\u6d53\u5ea6\u7684HF\u6216\u8005\u6c1f\u5316\u7269\u4e0e\u5f3a\u9178\u7684\u6df7\u5408\u7269\u6765\u523b\u8680MAX\u76f8\u4e2d\u7684A\u539f\u5b50\u5c42\uff0c\u8fd9\u6837\u5f97\u5230\u7684MXene\u5e26\u6709\u5927\u91cf\u7684F\u7aef\u57fa\u3002\u4e00\u65b9\u9762HF\u5341\u5206\u5371\u9669\u5e76\u4e14F\u7aef\u57fa\u4f1a\u964d\u4f4e\u6750\u6599\u7684\u7535\u5316\u5b66\u6027\u80fd\uff0c\u66f4\u91cd\u8981\u7684\u662fMAX\u76f8\u4e2dA\u539f\u5b50\u5927\u591a\u6570\u4e3a\u9178\u6027\u5143\u7d20\u800cHF\u76f8\u5173\u7684\u65b9\u6cd5\u4ec5\u9002\u7528\u4e8e\u523b\u8680\u542b\u6709\u78b1\u6027\u548c\u4e24\u6027\u5143\u7d20\u7684MAX\u76f8\u3002\u57fa\u4e8e\u4ee5\u4e0a\u7684\u60c5\u51b5\uff0c\u8feb\u5207\u9700\u8981\u4e00\u79cd\u65e0\u6c1f\u5e76\u4e14\u53ef\u4ee5\u523b\u8680\u9178\u6027\u5143\u7d20\u7684\u5408\u6210\u65b9\u6cd5\u6765\u5236\u5907\u65b0\u7684MXene\u3002<\/p>\n \u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n \u8fd1\u65e5\uff0c\u4e0a\u6d77\u4ea4\u901a\u5927\u5b66\u91d1\u5c5e\u57fa\u590d\u5408\u6750\u6599\u56fd\u5bb6\u91cd\u70b9\u5b9e\u9a8c\u5ba4\u5f20\u837b\u6559\u6388\u548c\u987e\u4f73\u4fca\u6559\u6388\uff08\u5171\u540c\u901a\u8baf\u4f5c\u8005\uff09\u8bfe\u9898\u7ec4<\/strong>\u62a5\u9053\u4e86\u4e00\u79cd\u5229\u7528\u6c34\u70ed\u6cd5\u78b1\u523b\u8680\u5408\u6210\u65e0\u6c1f\u9ad8\u7eafMXene\u6750\u6599\u2014\u2014Ti3<\/sub>C2<\/sub>Tx<\/sub>\uff08T= -OH, -O\uff09\u7684\u65b9\u6cd5\u3002\u5728\u7406\u8bba\u4e0a\uff0c\u867d\u7136\u666e\u904d\u8ba4\u4e3a\u78b1\u53ef\u4ee5\u523b\u8680Ti3<\/sub>AlC2<\/sub>\u4e2d\u7684Al\u5143\u7d20\uff0c\u4f46\u73b0\u6709\u7684\u62a5\u9053\u4e2d\u8fd8\u65e0\u6cd5\u4ec5\u7528\u78b1\u6765\u5b9e\u73b0\u9ad8\u7eaf\u5ea6Ti3<\/sub>C2<\/sub>Tx<\/sub>\u7684\u5236\u5907\uff0c\u5176\u4e3b\u8981\u52a8\u529b\u5b66\u963b\u788d\u6765\u81ea\u4e8e\u53cd\u5e94\u4e2d\u4ea7\u751f\u7684Al\u7684\u6c27\u5316\u7269\u548c\u6c22\u6c27\u5316\u7269\u3002\u542f\u8fea\u4e8e\u94dd\u5de5\u4e1a\u4e2d\u7684Bayer\u6cd5\uff0c\u6700\u7ec8\u7814\u7a76\u8005\u5b9e\u73b0\u4e86\u5229\u7528NaOH\u523b\u8680Ti3<\/sub>AlC2<\/sub>\u4e2d\u7684Al\u5143\u7d20\u3002\u8be5\u5236\u5907\u8fc7\u7a0b\u5168\u7a0b\u672a\u4f7f\u7528\u542b\u6c1f\u8bd5\u5242\u5e76\u4e14\u5f97\u5230\u7684\u4ea7\u7269\u7eaf\u5ea6\u9ad8\u8fbe92 w<\/em>%\uff0827.5M NaOH\uff0c270\u2103\u6c34\u70ed\u5904\u7406\uff09\u3002\u7531\u4e8e\u4ea7\u7269\u4e0d\u542bF\u7aef\u57fa\uff0c<\/strong> \u5236\u5907\u7684Ti3<\/sub>C2<\/sub>Tx<\/sub>\u8584\u819c\u7535\u6781\uff08\u539a\u5ea6\u4e3a52 \u03bcm\uff0c\u5bc6\u5ea6\u4e3a1.63g\u00b7cm-3<\/sup>\uff09\u57281M H2<\/sub>SO4<\/sub>\uff0c\u626b\u63cf\u901f\u5ea62mVs-1<\/sup>\u6761\u4ef6\u4e0b\u7684\u8d28\u91cf\u6bd4\u7535\u5bb9\u548c\u4f53\u79ef\u6bd4\u7535\u5bb9\u9ad8\u8fbe314 F\u00b7g-1<\/sup>\u3001511 F\u00b7cm-3<\/sup>\uff0c\u76f8\u5bf9\u4e8eHF\u5236\u5907\u7684\u591a\u5c42Ti3<\/sub>C2<\/sub>Tx<\/sub>\u8d28\u91cf\u6bd4\u7535\u5bb9\u63d0\u9ad8\u4e86214%\u3002\u6b64\u5916\u8be5\u65b9\u6cd5\u8fd8\u53ef\u7528\u4e8e\u901a\u8fc7\u523b\u8680\u542b\u6709\u9178\u6027A\u5143\u7d20\u7684MAX\u76f8\u6765\u5236\u5907\u65b0\u578bMXene\u6750\u6599\u3002\u8be5\u6210\u679c\u4ee5\u201cFluorine-Free Synthesis of High-Purity Ti3<\/sub>C2<\/sub>Tx<\/sub> (T= -OH, -O) via Alkali Treatment<\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728Angew. Chem. Int. Ed.<\/strong>\u4e0a\u3002\u8be5\u5de5\u4f5c\u7684\u5171\u540c\u7b2c\u4e00\u4f5c\u8005\u4e3a\u4e0a\u6d77\u4ea4\u901a\u5927\u5b66\u6750\u6599\u5b66\u9662\u7684\u535a\u58eb\u7814\u7a76\u751f\u674e\u817e\u98de\u548c\u7855\u58eb\u7814\u7a76\u751f\u59da\u9732\u9732\u3002<\/strong><\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n \u56fe\u4e00<\/strong> \u4e0d\u540c\u6e29\u5ea6\u548c<\/strong>NaOH<\/strong>\u6d53\u5ea6\u6761\u4ef6\u4e0b<\/strong>Ti3<\/sub>AlC2<\/sub><\/strong>\u548c<\/strong>NaOH<\/strong>\u6c34\u6eb6\u6db2\u7684\u53cd\u5e94\u673a\u7406<\/strong><\/p>\n b) \u9ad8\u6e29\u4e0b\uff0c\u4f4e\u6d53\u5ea6\u7684NaOH\u6eb6\u6db2\u53ef\u4ee5\u6eb6\u89e3\u963b\u788d\u523b\u8680\u7684Al\u7684\u6c27\u5316\u7269\u6216\u6c22\u6c27\u5316\u7269\uff0c\u4f46\u9ad8\u7684\u6c34\u542b\u91cf\u4f1a\u4f7f\u751f\u6210\u7684MXene\u6c27\u5316\u4e3aNTOs<\/p>\n c) \u9ad8\u6e29\u4e0b\uff0c\u9ad8\u6d53\u5ea6\u7684NaOH\u6eb6\u6db2\u53ef\u4ee5\u6eb6\u89e3\u963b\u788dAl\u523b\u8680\u7684Al\u7684\u6c27\u5316\u7269\u6216\u6c22\u6c27\u5316\u7269\uff0c\u5e76\u907f\u514d\u751f\u6210\u7684MXene\u8fdb\u4e00\u6b65\u6c27\u5316\u4e3aNTOs<\/p>\n \u56fe\u4e8c<\/strong> \u4e0d\u540c\u6c34\u70ed\u6e29\u5ea6\u548c<\/strong>NaOH<\/strong>\u6d53\u5ea6\u6240\u751f\u6210\u7684<\/strong>Ti3<\/sub>C2<\/sub>Tx<\/sub><\/strong>\u53ca\u5176<\/strong>XRD<\/strong>\u56fe\u8c31<\/strong><\/p>\n b\uff09- d\uff09\u5206\u522b\u662fMXene\u3001MAX\u3001NTOs\uff08Na2<\/sub>Ti3<\/sub>O7<\/sub>\u3001Na2<\/sub>Ti7<\/sub>O15<\/sub>\uff09\u7684XRD\u56fe\u8c31\uff0cb\uff09\u548cd\uff09\u4e2d\u7684\u865a\u7ebf\u5206\u522b\u4ee3\u8868Ti3<\/sub>C2<\/sub>(OH)2<\/sub>\u7684{002}\u6676\u9762\u3001<\/strong>Ti3<\/sub>AlC2<\/sub>\u7684{104}\u6676\u9762\uff0c\u53ef\u4ee5\u7528\u6765\u8ba1\u7b97MXene\u7684\u542b\u91cf<\/p>\n \u56fe\u4e09<\/strong> 27.5M<\/strong>\u7684<\/strong>NaOH<\/strong>\u6eb6\u6db2\uff0c<\/strong>270<\/strong>\u2103\u6761\u4ef6\u4e0b\u6c34\u70ed\u5904\u7406\u6240\u5f97<\/strong>Ti3<\/sub>C2<\/sub>Tx<\/sub><\/strong>\u7684\u8868\u5f81<\/strong><\/p>\n b) Ti3<\/sub>C2<\/sub>Tx<\/sub>\u4e0e\u539f\u59cbTi3<\/sub>AlC2<\/sub>\u7c89\u672b\u7684XPS\u8c31\u56fe<\/p>\n c\uff09- e) \u5206\u522b\u4ee3\u8868Ti3<\/sub>C2<\/sub>Tx<\/sub>\u4e0e\u539f\u59cbTi3<\/sub>AlC2<\/sub>\u7c89\u672b\u7684Ti 2p\uff0cNa 1s \u548c Al 2p\u7684XPS\u8c31\u56fe<\/p>\n f\uff09- h\uff09\u5206\u522b\u4ee3\u8868Ti3<\/sub>C2<\/sub>Tx<\/sub>\u7684SEM\u3001TEM\u3001HAADF-STEM\u56fe\u50cf\uff0ch\uff09\u4e2d\u7684\u4eae\u6591\u8868\u793aTi\u7684\u4f4d\u7f6e<\/p>\n \u56fe\u56db<\/strong> Ti3<\/sub>C2<\/sub>Tx<\/sub><\/strong>\u8584\u819c\u7535\u6781\u7684\u8d85\u7ea7\u7535\u5bb9\u5668\u6027\u80fd<\/strong><\/p>\n b)\u00a0Ti3<\/sub>C2<\/sub>Tx<\/sub>\u8584\u819c\u7535\u6781\u57281\uff0c2\uff0c5\uff0c10A g-1<\/sup>\u4e0b\u7684GCD\u66f2\u7ebf<\/p>\n c) \u4e0d\u540c\u7535\u4f4d\u4e0b\u7684EIS\u66f2\u7ebf\uff08200 kHz to 10 mHz\uff09\uff0c\u63d2\u56fe\u662f\u5bf9\u9ad8\u9891\u533a\u57df\u7684\u653e\u5927<\/p>\n d) Ti3<\/sub>C2<\/sub>Tx<\/sub>\u8584\u819c\u7535\u6781\u57285A g-1<\/sup>\u6761\u4ef6\u4e0b\u7684\u5faa\u73af\u7a33\u5b9a\u6027\u6d4b\u8bd5<\/p>\n \u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n \u672c\u5de5\u4f5c\u9996\u6b21\u5b9e\u73b0\u4e86\u78b1\u523b\u8680\u6cd5\u5236\u5907\u9ad8\u7eaf\u5ea6\u7684MXene\uff0c\u8fd9\u4e00\u65b9\u6cd5\u542f\u8fea\u94dd\u5de5\u4e1a\u4e2d\u6210\u719f\u7684Bayer\u6cd5\uff0c\u5e76\u4e14\u6210\u529f\u5b9e\u73b0\u4e86\u5236\u5907\u8fc7\u7a0b\u4e2d\u7684\u65e0\u6c1f\u5316\u3002\u6b64\u5916\uff0c\u5f53\u4e00\u4e9b\u7279\u5b9a\u7684MAX\u76f8\u5fc5\u987b\u53bb\u9664\u4e24\u6027\u6216\u8005\u9178\u6027\u5143\u7d20\u65f6\uff0c\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u9009\u62e9\u6027\u5730\u523b\u8680\u8fd9\u4e9bMAX\u76f8\u4ee5\u751f\u6210\u65b0\u578bMXene\uff0c\u4e3a\u5b89\u5168\u3001\u7eff\u8272\u5730\u5236\u5907MXene\u63d0\u4f9b\u4e86\u4e00\u4e2a\u65b0\u7684\u9014\u5f84\uff0c\u5177\u6709\u91cd\u8981\u610f\u4e49\u3002<\/p>\n \u6587\u732e\u94fe\u63a5\uff1a<\/strong> Fluorine-Free Synthesis of High-Purity Ti3<\/sub>C2<\/sub>Tx<\/sub> (T=-OH, -O) via Alkali Treatment<\/a>\uff08Angew. Chem. Int. Ed., 2018, DOI: 10.1002\/anie.201800887\uff09<\/p>\n \u672c\u6587\u7531\u6750\u6599\u4eba\u7f16\u8f91\u90e8\u65b0\u4eba\u7ec4\u675c\u6210\u6c5f\u7f16\u8f91\uff0c\u5218\u5b87\u9f99\u5ba1\u6838\uff0c\u70b9\u6211\u52a0\u5165\u6750\u6599\u4eba\u7f16\u8f91\u90e8<\/a>\u3002<\/p>\na) \u4f4e\u6e29\u4e0b\uff0cAl\u7684\u6c27\u5316\u7269\u6216\u6c22\u6c27\u5316\u7269\u7684\u5f62\u6210\u963b\u788d\u4e86NaOH\u5bf9Al\u539f\u5b50\u7684\u523b\u8680<\/p>\n
a\uff09\u4e0d\u540c\u6c34\u70ed\u6e29\u5ea6\u548cNaOH\u6d53\u5ea6\u4e0b\u5f97\u5230\u768424\u79cd\u4ea7\u7269\u7684\u4e3b\u8981\u6210\u5206\uff0c\u5176\u4e2d\u7ea2\u5708\u4ee3\u8868MXene\uff0c\u9ed1\u6846\u4ee3\u8868MAX\uff0c\u84dd\u4e09\u89d2\u5f62\u4ee3\u8868NTOs\u00a0<\/p>\n
a) Ti3<\/sub>C2<\/sub>Tx<\/sub>\u7c89\u672b\u7684\u5149\u5b66\u7167\u7247<\/p>\n
a) Ti3<\/sub>C2<\/sub>Tx<\/sub>\u8584\u819c\u7535\u6781\u57282\uff0c5\uff0c10\uff0c20\uff0c50\u548c100 mVs-1<\/sup>\u4e0b\u7684CV\u66f2\u7ebf<\/p>\n