{"id":154476,"date":"2018-10-04T06:42:35","date_gmt":"2018-10-03T22:42:35","guid":{"rendered":"\/\/m.iemloyee.com\/?p=154476"},"modified":"2018-10-03T21:43:08","modified_gmt":"2018-10-03T13:43:08","slug":"%e5%8c%97%e8%88%aa%e5%bc%a0%e7%91%9e%e4%b8%b0adv-funct-mater-%ef%bc%9a%e9%ab%98%e5%ba%a6%e6%9f%94%e6%80%a7%e4%ba%8c%e7%bb%b4%e8%bf%87%e6%b8%a1%e6%97%8f%e9%87%91%e5%b1%9e%e7%a2%b3%e5%8c%96%e7%89%a9","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=154476","title":{"rendered":"\u5317\u822a\u5f20\u745e\u4e30Adv. Funct. Mater.\uff1a\u9ad8\u5ea6\u67d4\u6027\u4e8c\u7ef4\u8fc7\u6e21\u65cf\u91d1\u5c5e\u78b3\u5316\u7269\u8868\u9762\u7535\u5316\u5b66\u7a33\u5b9a\u6027\u4e0e\u5e94\u53d8\u8c03\u63a7\u9502\u5b58\u50a8\u6027\u80fd\u7684\u7814\u7a76"},"content":{"rendered":"
\u3010\u524d\u8a00\u3011<\/strong><\/p>\n 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C\u7684\u5145\u653e\u7535\u901f\u7387\u4e0b\u5177\u6709410 mAh g\u2212<\/sup>1<\/sup>\u7684\u6bd4\u5bb9\u91cf\uff0c\u8d85\u8fc7\u4e86\u9502\u7535\u6c60(LIBs)\u4e2d\u88ab\u5e7f\u6cdb\u4f7f\u7528\u7684\u5546\u7528\u77f3\u58a8\u7535\u6781(372 mAh g\u2212<\/sup>1<\/sup>)\u3002\u800c\u8fdb\u4e00\u6b65\u7684\u7406\u8bba\u7814\u7a76\u53d1\u73b0\uff0cTi2<\/sub>C (0.02 eV)\u4e0aLi\u539f\u5b50\u7684\u6269\u6563\u52bf\u5792\u8fdc\u5c0f\u4e8eTiO2<\/sub> (0.35 \u2013 0.65 eV)\u548c\u77f3\u58a8\u70ef(\u2248 0.3 eV)\uff0c\u8868\u660e\u524d\u8005\u62e5\u6709\u66f4\u9ad8\u7684\u5145\u653e\u7535\u901f\u7387\u3002<\/p>\n \u5728\u5236\u5907MXene\u7684\u8fc7\u7a0b\u4e2d\uff0c\u5176\u8868\u9762\u5b98\u80fd\u56e2\u7684\u5206\u5e03\u4f1a\u56e0\u5176\u5236\u5907\u6761\u4ef6\u7684\u53d8\u5316\u4ea7\u751f\u53d8\u5316\u3002\u6c22\u6c1f\u9178(HF)\u6eb6\u6db2\u3001\u6c1f\u5316\u6c22\u94f5\u548c\u6c1f\u5316\u94f5\u6eb6\u6db2\uff0c\u6216\u901a\u8fc7\u76d0\u9178\u548c\u6c1f\u5316\u7269\u7684\u53cd\u5e94\u539f\u4f4d\u751f\u6210\u6c22\u6c1f\u9178\u6eb6\u6db2\u7b49\u4e0d\u540c\u5236\u5907\u624b\u6bb5\u5f97\u5230\u7684MXene\u7684\u7535\u5316\u5b66\u7a33\u5b9a\u6027\u5177\u6709\u663e\u8457\u7684\u5dee\u5f02\u3002\u4e2d\u5b50\u6563\u5c04\u3001NMR\u5149\u8c31\u548cX\u5c04\u7ebf\u5149\u7535\u5b50\u80fd\u8c31(XPS)\u7b49\u5b9e\u9a8c\u8868\u5f81\u624b\u6bb5\u8bc1\u5b9eMXene\u8868\u9762\u5747\u5b58\u5728\u591a\u79cd\u5b98\u80fd\u56e2\u3002\u7531\u4e8e\u5355\u5b98\u80fd\u56e2MXenes\u901a\u5e38\u88ab\u4f5c\u4e3a\u6a21\u578b\u7cfb\u7edf\u8fdb\u884c\u7814\u7a76\uff0c\u8fd9\u5c31\u63d0\u51fa\u4e86\u4e00\u4e2a\u5173\u952e\u79d1\u5b66\u95ee\u9898\uff0c\u5373\u9488\u5bf9\u5355\u5b98\u80fd\u56e2\u5316\u7684MXene\u5f97\u51fa\u7684\u53d1\u73b0\u548c\u7ed3\u8bba\u662f\u5426\u9002\u7528\u4e8e\u591a\u5b98\u80fd\u56e2\u5316\u7684MXene\u3002\u56e0\u6b64\uff0c\u4e3a\u4e86\u5728\u7406\u8bba\u548c\u5b9e\u9a8c\u6761\u4ef6\u4e0b\u66f4\u597d\u5730\u7406\u89e3\u590d\u6742\u8868\u9762\u7ed3\u6784\u7684\u5f62\u6210\u673a\u7406\uff0c\u4eba\u4eec\u8feb\u5207\u9700\u8981\u4e00\u4e2a\u6df1\u5165\u7cfb\u7edf\u7684\u7269\u7406\u5316\u5b66\u89c2\u70b9\u3002<\/p>\n \u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n \u8fd1\u65e5\uff0c\u6765\u81ea\u5317\u4eac\u822a\u7a7a\u822a\u5929\u5927\u5b66\u7684\u5f20\u745e\u4e30\u6559\u6388\u7814\u7a76\u7ec4<\/strong>\u5728Advanced Functional Materials\u4e0a\u53d1\u8868\u6587\u7ae0\uff0c\u9898\u4e3a\uff1aSurface Electrochemical Stability and Strain-Tunable Lithium Storage of Highly Flexible 2D Transition Metal Carbides\u3002\u4f5c\u8005\u4ee5Ti2<\/sub>CTn<\/sub>\u4e3a\u6a21\u578b\uff0c\u91c7\u7528\u5148\u8fdb\u7684\u9ad8\u901a\u91cf\u8ba1\u7b97\u6280\u672f\uff0c\u7cfb\u7edf\u63a2\u7d22\u4e86\u4e0d\u540c\u7535\u5316\u5b66\u73af\u5883\u4e0b\u5176\u6df7\u6742\u5b98\u80fd\u56e2\u7684\u5206\u5e03\u6784\u578b\u3002\u4f5c\u8005\u9884\u6d4b\u4e86\u4e94\u79cd\u70ed\u529b\u5b66\u4e0a\u6f5c\u5728\u7684O-\u548cF-\u5171\u5b98\u80fd\u56e2Ti2<\/sub>CTn<\/sub>\uff0c\u8fd9\u4e9b\u7ed3\u6784\u5747\u8868\u73b0\u51fa\u4f18\u5f02\u7684\u673a\u68b0\u67d4\u6027\u548c\u5f3a\u5ea6\uff0c\u968f\u7740F\/O\u6bd4\u7684\u589e\u52a0\uff0c\u8fd9\u79cd\u67d4\u6027\u548c\u5f3a\u5ea6\u5448\u4e0b\u964d\u8d8b\u52bf\u3002\u5bf9\u8fd9\u4e9b\u5171\u5b98\u80fd\u56e2Ti2<\/sub>CT2<\/sub>\u7684\u5e94\u53d8\u8c03\u63a7Li\u8fc1\u79fb\u7684\u8fdb\u4e00\u6b65\u7814\u7a76\u8868\u660e\uff0c\u8868\u9762\u7684\u6df7\u5408\u5b98\u80fd\u56e2\u80fd\u6709\u6548\u964d\u4f4e\u4e86\u6269\u6563\u52bf\u5792\u3002\u5728\u5355\u8f74\u5e94\u529b\u6761\u4ef6\u4e0b\uff0c\u5176\u4e0d\u5bf9\u79f0\u7684\u8868\u9762\u62d3\u6251\u6784\u578b\u548c\u7535\u5b50\u6781\u5316\u7279\u5f81\u4f1a\u6709\u6548\u8c03\u63a7Li\u539f\u5b50\u7684\u6269\u6563\u8def\u5f84\u3002\u8fd9\u4e9b\u53d1\u73b0\u4e3a\u901a\u8fc7\u7535\u5316\u5b66\u65b9\u6cd5\u8bbe\u8ba1\u65b0\u578bMXene\u6750\u6599\u5960\u5b9a\u4e86\u7406\u8bba\u57fa\u7840\uff0c\u5e76\u62d3\u5c55\u4e86\u5e94\u53d8\u8c03\u63a7\u7535\u5316\u5b66\u6027\u8d28\u7684\u6709\u6548\u9014\u5f84\u3002<\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n \u56fe1. \u7535\u5316\u5b66\u673a\u7406<\/p>\n a ) \u5728\u6c22\u6c1f\u9178\u6eb6\u6db2\u4e2dTi2<\/sub>CT2<\/sub>\u8868\u9762\u7ec8\u7aef\u7684\u7535\u5316\u5b66\u5f62\u6210\u673a\u5236\uff1b<\/p>\n b ) Ti2<\/sub>COx<\/sub>\u7684\u5f62\u6210\u80fd( x\u4ece0.25\u53d8\u5316\u52302 )\u4e0e\u76f8\u5e94\u5316\u5b66\u52bf\u0394\u03bcO<\/sub>\u7684\u51fd\u6570\uff1b<\/p>\n c )\u2014O\uff0c\u2014F\u548c\u2014OH\u5728Ti2<\/sub>CT2<\/sub>\u8868\u9762\u4e0a\u7684\u5f62\u6210\u80fd\u4e0e\u76f8\u5e94\u5316\u5b66\u52bf\u2206\u03bcH<\/sub>\u7684\u51fd\u6570\uff1b<\/p>\n \u56fe2.\u7535\u5316\u5b66\u73af\u5883\u4e0b\u7684\u70ed\u529b\u5b66\u7a33\u5b9a\u6784\u578b<\/p>\n Ti2<\/sub>CT2<\/sub>\u8868\u9762\u4e0a\u2014O\uff0c\u548c\u2014F\u6df7\u6742\u5b98\u80fd\u56e2\u7684\u5f62\u6210\u80fd\u4e0e\u0394\u03bcH<\/sub>\u7684\u51fd\u6570\u5173\u7cfb\u3002\u5728x\u8f74\u9876\u90e8\uff0c\u0394\u03bcH<\/sub>\u88ab\u8f6c\u5316\u4e3apH\u503c\u3002\u53f3\u4fa7\u5217\u51fa\u4e86\u4e94\u79cd\u8ba1\u7b97\u51fa\u7684Ti2<\/sub>CT2<\/sub>\u70ed\u529b\u5b66\u7a33\u5b9a\u7ed3\u6784\uff0c\u5373Ti2<\/sub>CO1.33<\/sub>F0.67<\/sub>, Ti2<\/sub>CO0.89<\/sub>F1.11<\/sub>, Ti2<\/sub>CO0.67<\/sub>F1.33<\/sub>, Ti2<\/sub>CO0.44<\/sub>F1.56<\/sub>,\u548cTi2<\/sub>CO0.11<\/sub>F1.89<\/sub>.<\/p>\n \u56fe3.\u529b\u5b66\u6027\u8d28\u4e0e\u5931\u7a33\u673a\u7406<\/p>\n \u5728a) x\u8f74\u3001b\uff09y\u8f74\uff0c\u548cc) \u53cc\u8f74\u52a0\u8f7d\u6761\u4ef6\u4e0b\uff0c\u8ba1\u7b97\u7684\u7eaf\u7ec8\u7aef\u548c\u6df7\u5408\u7ec8\u7aefTi2<\/sub>CT2<\/sub>\u5e94\u529b\u03c3\u2014\u5e94\u53d8\u03b5\u66f2\u7ebf\u548c\u5dee\u5206\u7535\u8377\u5bc6\u5ea6\u56fe\uff1b<\/p>\n \u56fe4. \u6269\u6563\u8def\u5f84<\/p>\n a ) \u8ba1\u7b97\u7684\u6269\u6563\u80fd\u5792\u548cLi\u5728\u7eaf\u5b98\u80fd\u56e2\u4e0e\u6df7\u6742\u5b98\u80fd\u56e2Ti2<\/sub>CT2<\/sub>\u4e0a\u7a33\u5b9a\u4f4d\u7f6e\u4e0e\u8fc7\u6e21\u4f4d\u7f6e\u4e4b\u95f4\u7684\u7535\u8377\u5bc6\u5ea6\u5dee\uff1b<\/p>\n Li\u539f\u5b50\u5728b) Ti2<\/sub>CO1.33<\/sub>F0.67<\/sub>, c) Ti2<\/sub>CO0.89<\/sub>F1.11<\/sub>, d) Ti2<\/sub>CO0.67<\/sub>F1.33<\/sub>, e) Ti2<\/sub>CO0.44<\/sub>F1.56<\/sub>,\u548cf) Ti2<\/sub>CO0.11<\/sub>F1.89<\/sub>\u8868\u9762\u4e0a\u6269\u6563\u7684\u52bf\u80fd\u9762(PES)\u4e0e\u5728x\u548cy\u65b9\u5411\u4e0a\u76f8\u5bf9\u4f4d\u79fb\u7684\u51fd\u6570\u5173\u7cfb\uff1b<\/p>\n \u56fe5. \u6269\u6563\u673a\u7406\u7814\u7a76<\/p>\n \u9502\u539f\u5b50\u5728Ti2<\/sub>CO1.33<\/sub>F0.67<\/sub>\u8868\u9762a) \u5728\u53cc\u8f74\u5e94\u53d8\uff0c b) \u6cbf\u8def\u5f84I\u548c\u8def\u5f84II\u7684\u5355\u8f74\u5e94\u529b\uff0cc) \u6cbf\u8def\u5f84II\u548c\u8def\u5f84III\u7684\u5355\u8f74\u5e94\u529b\u4e0b\u6269\u6563\u7684\u80fd\u91cf\u5206\u5e03\uff0c\uff1b<\/p>\n d ) \u5728\u53cc\u8f74\u52a0\u8f7d\u6761\u4ef6\u4e0b\uff0c\u8ba1\u7b97\u7684\u6269\u6563\u52bf\u5792\u548cLi\u5728Ti2<\/sub>CO1.33<\/sub>F0.67<\/sub>\u7684\u7a33\u5b9a\u4f4d\u7f6e\u548c\u8fc7\u6e21\u4f4d\u7f6e\u4e4b\u95f4\u7684\u7535\u8377\u5dee\u5f02\u3002<\/p>\n e )Ti2<\/sub>CO1.33<\/sub>F0.67<\/sub>\u4e0aLi\u5728\u521d\u59cb\u3001\u8fc7\u6e21\u548c\u6700\u7ec8\u72b6\u6001\u4e0b\u7684\u7535\u8377\u5bc6\u5ea6\u5dee\uff1b<\/p>\n f ) Li\u539f\u5b50\u4e0e\u5176\u76f8\u90bb\u5b98\u80fd\u56e2\u4e4b\u95f4\u7684\u7535\u8377\u5bc6\u5ea6\u5dee\u7684\u7ebf\u5206\u5e03\uff1b<\/p>\n \u56fe6. \u7535\u538b\u66f2\u7ebf<\/p>\n f)\u6df7\u6742\u5b98\u80fd\u56e2 Ti2<\/sub>CT2<\/sub>\u7684\u7406\u8bba\u5bb9\u91cf\u548c\u5e73\u5747\u7535\u538b\u3002<\/p>\n \u3010\u603b\u7ed3\u3011<\/p>\n \u901a\u8fc7\u9ad8\u901a\u91cf\u7b2c\u4e00\u6027\u539f\u7406\u8ba1\u7b97\u4e0e\u7efc\u5408\u70ed\u529b\u5b66\u5206\u6790\uff0c\u4f5c\u8005\u63a2\u7d22\u4e86Ti2<\/sub>CTn<\/sub>\u5728\u4e0d\u540c\u5316\u5b66\u73af\u5883\u4e2d\u7684\u70ed\u529b\u5b66\u7a33\u5b9a\u6784\u578b\uff1b\u8003\u8651\u5230\u2014O\u548c\u2014F\u5b98\u80fd\u56e2\uff0c\u901a\u8fc7\u9ad8\u901a\u91cf\u7b5b\u9009\u83b7\u5f97\u4e86\u4e94\u79cd\u70ed\u529b\u5b66\u4e0a\u7a33\u5b9a\u7684Ti2<\/sub>CTn<\/sub>\u3002\u5728\u591a\u8f74\u52a0\u8f7d\u65b9\u6848(\u53cc\u8f74\/\u5355\u8f74\u3001\u62c9\u4f38\/\u538b\u7f29)\u4e0b\uff0c\u4f5c\u8005\u7cfb\u7edf\u5730\u7814\u7a76\u4e86\u4e94\u79cdTi2<\/sub>CTn<\/sub>\u7684\u673a\u68b0\u548c\u7535\u5316\u5b66\u6027\u80fd\u3002\u7ed3\u679c\u8868\u660e\uff0c\u542b\u6df7\u5408\u5b98\u80fd\u56e2\u7684Ti2<\/sub>CTn<\/sub>\u7684\u4e34\u754c\u5e94\u53d8\u4f1a\u964d\u4f4e\uff0c\u800c\u673a\u68b0\u521a\u5ea6\u968f\u7740O\/F\u6d53\u5ea6\u7684\u589e\u52a0\u5448\u68af\u5ea6\u964d\u4f4e\u8d8b\u52bf\u3002\u4f5c\u8005\u53d1\u73b0Li\u5728Ti2<\/sub>CO1.33<\/sub>F0.67<\/sub>\u6574\u4e2a\u8868\u9762\u4e0a\u4f20\u8f93\u5177\u6709\u6700\u4f4e\u7684\u80fd\u5792(0.268 eV)\uff0c\u5e76\u4e14\u5728\u6240\u6709\u7814\u7a76\u7684Ti2<\/sub>CTn<\/sub>\u4e2d\u5177\u6709\u6700\u5927\u7684\u7406\u8bba\u5bb9\u91cf(357 mAh g\u2212<\/sup>1<\/sup>)\uff0c\u8fd9\u4e0e\u77f3\u58a8\u7684\u7406\u8bba\u5bb9\u91cf(0.3 eV, 372 mAh g\u2212<\/sup>1<\/sup>)\u76f8\u5f53\uff0c\u8868\u660e\u5176\u4f5c\u4e3aLIB\u6b63\u6781\u7684\u6f5c\u5728\u7535\u5316\u5b66\u5e94\u7528\u3002\u6b64\u5916\uff0c\u7406\u8bba\u8ba1\u7b97\u8868\u660e\uff0c\u5408\u6210Ti2<\/sub>CO1.33<\/sub>F0.67<\/sub>\u65f6HF\u7684pH\u503c\u57284\u52306.5\u4e4b\u95f4\u3002\u901a\u8fc7\u5f15\u5165\u591a\u8f74\u5e94\u53d8\u6765\u8c03\u8282\u7535\u5316\u5b66\u6027\u8d28\uff0c\u4f5c\u8005\u53d1\u73b0\u53cc\u8f74\u62c9\u4f38(\u538b\u7f29)\u589e\u52a0(\u51cf\u5c11) Li\u6269\u6563\u7684\u80fd\u91cf\u52bf\u5792\uff0c\u800c\u5355\u8f74\u5e94\u529b\u53ef\u4ee5\u7075\u6d3b\u5730\u6709\u6548\u8c03\u8282\u6269\u6563\u8def\u5f84\u3002\u8fd9\u4e9b\u53d1\u73b0\u901a\u8fc7\u63a7\u5236\u5404\u79cd\u5b98\u80fd\u56e2\u7684\u5f62\u6210\uff0c\u4e3a\u8bbe\u8ba1\u548c\u5b9a\u5236MXenes\u7684\u673a\u68b0\u548c\u7535\u5316\u5b66\u6027\u80fd\u63d0\u4f9b\u4e86\u6307\u5bfc\u3002<\/p>\n
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a) Ti2<\/sub>CO33<\/sub>F0.67<\/sub>, b) Ti2<\/sub>CO0.89<\/sub>F1.11<\/sub>, c) Ti2<\/sub>CO0.67<\/sub>F1.33<\/sub>, d) Ti2<\/sub>CO0.44<\/sub>F1.56<\/sub>, \u548ce) Ti2<\/sub>CO0.11<\/sub>F1.89<\/sub>\u7684\u8ba1\u7b97\u7684\u5f62\u6210\u80fd\u548c\u7535\u538b\u66f2\u7ebf.<\/p>\n