{"id":77423,"date":"2017-04-27T06:30:13","date_gmt":"2017-04-26T22:30:13","guid":{"rendered":"\/\/m.iemloyee.com\/?p=77423"},"modified":"2017-04-25T00:07:16","modified_gmt":"2017-04-24T16:07:16","slug":"adv-mater-%ef%bc%9a%e9%a6%96%e6%ac%a1%e5%90%88%e6%88%90na2ti3o7n%e6%8e%ba%e6%9d%82%e7%9a%84%e7%a2%b3%e7%a9%ba%e5%bf%83%e7%90%83%e7%94%a8%e4%bd%9c%e9%92%a0%e7%a6%bb%e5%ad%90%e7%94%b5%e6%b1%a0","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=77423","title":{"rendered":"Adv. Mater.\uff1a\u9996\u6b21\u5408\u6210Na2Ti3O7@N\u63ba\u6742\u7684\u78b3\u7a7a\u5fc3\u7403\u7528\u4f5c\u94a0\u79bb\u5b50\u7535\u6c60\u8d1f\u6781\u6750\u6599\uff0c\u500d\u7387\u6027\u80fd\u4f18\u5f02"},"content":{"rendered":"

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

\u7531\u4e8e\u6574\u4e2a\u7535\u80fd\u5b58\u50a8\u4f53\u7cfb\u6210\u672c\u7684\u663e\u8457\u964d\u4f4e\uff0c\u94a0\u79bb\u5b50\u7535\u6c60\u5728\u50a8\u80fd\u9886\u57df\u5185\u53d7\u5230\u4e86\u5e7f\u6cdb\u7684\u5173\u6ce8\u3002\u5728\u7528\u4e8e\u94a0\u79bb\u5b50\u7535\u6c60\u7684\u4f17\u591a\u8d1f\u6781\u6750\u6599\u4e2d\uff0cTi\u57fa\u6750\u6599\u7531\u4e8e\u5177\u5907\u9ad8\u6d3b\u6027\u3001\u4f4e\u6210\u672c\u548c\u73af\u5883\u53cb\u597d\u7b49\u7279\u70b9\u800c\u5907\u53d7\u5173\u6ce8\u3002Na2<\/sub>Ti3<\/sub>O7<\/sub>\u4f5c\u4e3a\u4e00\u7c7b\u7279\u6b8a\u7684\u949b\u57fa\u6750\u6599\uff0c\u8003\u8651\u5230Ti\u57fa\u6750\u6599\u7684\u6700\u4f4e\u7535\u538b\uff0c\u8be5\u6750\u6599\u88ab\u8ba4\u4e3a\u662f\u5177\u6709\u9ad8\u80fd\u91cf\u5bc6\u5ea6\u7684\u7406\u60f3\u8d1f\u6781\u6750\u6599\u3002\u7136\u800c\uff0cNa2<\/sub>Ti3<\/sub>O7<\/sub>\u7eb3\u7c73\u7ed3\u6784\u7f3a\u4e4f\u5408\u7406\u7684\u8bbe\u8ba1\uff0c\u56e0\u800c\u9650\u5236\u4e86\u5176\u5728\u94a0\u79bb\u5b50\u7535\u6c60\u4e2d\u7684\u500d\u7387\u6027\u80fd\uff0c\u7279\u522b\u662f\u5728\u9ad8\u7535\u6d41\u5bc6\u5ea6\u4e0b\u7684\u6027\u80fd\u8868\u73b0\u3002\u9664\u7ed3\u6784\u4f18\u5316\u5916\uff0c\u8868\u9762\u5de5\u7a0b\u4fee\u9970\u4e5f\u88ab\u8ba4\u4e3a\u662f\u63d0\u9ad8Na2<\/sub>Ti3<\/sub>O7<\/sub>\u7535\u5b50\u5bfc\u7535\u6027\u80fd\uff0c\u4ece\u800c\u63d0\u9ad8\u7535\u6c60\u6027\u80fd\u7684\u6709\u6548\u9014\u5f84\u3002<\/p>\n

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

\u8fd1\u65e5\uff0c\u6fb3\u5927\u5229\u4e9a\u963f\u5fb7\u83b1\u5fb7\u5927\u5b66\u7684\u4e54\u4e16\u748b\u6559\u6388<\/strong>(<\/strong>\u901a\u8baf\u4f5c\u8005<\/strong>)<\/strong>\u8bfe\u9898\u7ec4<\/strong>\u5728Adv. Mater.<\/strong>\u4e0a\u53d1\u8868\u4e86\u4e00\u7bc7\u9898\u4e3a\u201c<\/strong>Na2<\/sub>Ti3<\/sub>O7<\/sub>@N-Doped Carbon Hollow Spheres for Sodium-Ion Batteries with Excellent Rate Performance<\/strong>\u201d<\/strong>\u7684\u6587\u7ae0\uff0c\u7814\u7a76\u4eba\u5458\u9996\u6b21\u6210\u529f\u5408\u6210\u4e86N\u63ba\u6742\u78b3\u5305\u8986\u8d85\u8584Na2<\/sub>Ti3<\/sub>O7<\/sub>\u7eb3\u7c73\u7247\u7ec4\u88c5\u7684Na2<\/sub>Ti3<\/sub>O7<\/sub>\u7a7a\u5fc3\u7403\uff0c\u5e76\u5c06\u5176\u7528\u4f5c\u94a0\u79bb\u5b50\u7535\u6c60\u8d1f\u6781\u6750\u6599\uff0c\u8fdb\u884c\u4e86\u4e00\u7cfb\u5217\u7684\u6027\u80fd\u6d4b\u8bd5\u3002\u7a7a\u5fc3\u7ed3\u6784\u63d0\u4f9b\u4e86\u5f88\u5927\u7684\u6bd4\u8868\u9762\u79ef\u3001\u8fdb\u5165\u7535\u89e3\u8d28\u7684\u4f18\u52bf\u901a\u9053\u4ee5\u53ca\u66f4\u77ed\u7684\u79bb\u5b50\u7535\u5b50\u6269\u6563\u8def\u5f84\u3002\u8d85\u8584\u7eb3\u7c73\u7247\u663e\u8457\u51cf\u5c11\u4e86Na2<\/sub>Ti3<\/sub>O7<\/sub>\u7684\u5c42\u6570\uff0c\u4ece\u800c\u4e3a\u94a0\u79bb\u5b50\u63d0\u4f9b\u4e86\u4f18\u9009\u7684\u6269\u6563\u8def\u5f84\u3002\u8d85\u8584\u78b3\u6d82\u5c42\u589e\u5f3a\u4e86\u7535\u5bfc\u7387\uff0c\u4fc3\u8fdb\u4e86\u7535\u5b50\u4f20\u8f93\u3002\u572850 C\u7684\u9ad8\u7535\u6d41\u5bc6\u5ea6\u4e0b\uff0c\u78b3\u5305\u8986\u7eb3\u7c73\u7247\u7ec4\u88c5\u7684Na2<\/sub>Ti3<\/sub>O7<\/sub>\u7a7a\u5fc3\u7403\u5177\u5907\u8d85\u8fc760 mAh\u00b7g-1<\/sup>\u7684\u53ef\u9006\u5bb9\u91cf\uff0c\u5176\u5927\u5c0f\u662f\u7eb3\u7c73\u9897\u7c92\u7ec4\u88c5\u6750\u6599\u53ef\u9006\u5bb9\u91cf(\u224826 mAh\u00b7g-1<\/sup>)\u7684\u4e24\u500d\uff0c\u662f\u88f8\u7eb3\u7c73\u7247\u7ec4\u88c5\u6750\u6599\u53ef\u9006\u5bb9\u91cf(\u224832 mAh\u00b7g-1)\u7684\u8fd1\u4e24\u500d\uff0c\u8bc1\u660e\u4e86\u7247\u72b6\u7ed3\u6784\u548cN\u63ba\u6742\u78b3\u5305\u8986\u7684\u4f18\u52bf\u3002<\/p>\n

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

\u56fe<\/strong>1 Na2<\/sub>Ti3<\/sub>O7<\/sub>@C<\/strong>\u7a7a\u5fc3\u7403\u7684\u5408\u6210\u8fc7\u7a0b\u793a\u610f\u56fe<\/strong><\/p>\n

\"\"<\/p>\n

\u7b2c\u4e00\u6b65\uff1a<\/strong>\u5408\u6210\u9ad8\u5ea6\u5747\u5300\u7684\u4e8c\u6c27\u5316\u7845\u7403\uff1b<\/p>\n

\u7b2c\u4e8c\u6b65\uff1a<\/strong>\u5c06\u5747\u5300\u7684\u65e0\u5b9a\u5f62\u6c22\u6c27\u5316\u949b\u6d82\u8986\u5728\u4e8c\u6c27\u5316\u7845\u8868\u9762\u4e0a\uff0c\u5f97\u5230\u6c22\u6c27\u5316\u949b\u6d82\u8986\u7684\u4e8c\u6c27\u5316\u7845\uff1b<\/p>\n

\u7b2c\u4e09\u6b65\uff1a<\/strong>\u6c34\u70ed\u6761\u4ef6\u4e0b\u5728\u6c22\u6c27\u5316\u94a0\u6c34\u6eb6\u6db2\u4e2d\u5236\u5907\u5f97\u5230\u7531Na2<\/sub>Ti3<\/sub>O7<\/sub>\u8d85\u8584\u7eb3\u7c73\u7247\u7ec4\u6210\u7684\u7a7a\u5fc3\u7403\uff1b<\/p>\n

\u7b2c\u56db\u6b65\uff1a<\/strong>\u4f7f\u7528\u591a\u5df4\u80fa\u5728\u7eb3\u7c73\u7247\u7684\u8868\u9762\u4e0a\u5f62\u6210\u805a\u591a\u5df4\u80fa\uff0c\u4ea7\u751f\u805a\u5408\u7269\u6d82\u8986\u7684\u7eb3\u7c73\u7247\uff1b<\/p>\n

\u7b2c\u4e94\u6b65\uff1a<\/strong>\u5c06\u6240\u5236\u5907\u7684\u6837\u54c1\u7f6e\u4e8e\u7ba1\u5f0f\u7089\u4e2d\u5e76\u7145\u70e7\u4ee5\u83b7\u5f97\u6700\u7ec8\u4ea7\u7269Na2<\/sub>Ti3<\/sub>O7<\/sub>@C HHSs\u3002<\/p>\n

\u540d\u8bcd\u8bf4\u660e\uff1a<\/strong>Na2<\/sub>Ti3<\/sub>O7<\/sub>@C HHSs\u4e3aN\u63ba\u6742\u78b3\u5305\u8986\u8d85\u8584Na2<\/sub>Ti3<\/sub>O7<\/sub>\u7eb3\u7c73\u7247\u7ec4\u88c5\u7684\u7a7a\u5fc3\u7403\uff1bNa2<\/sub>Ti3<\/sub>O7<\/sub> HHSs\u4e3a\u65e0\u78b3\u5305\u8986\u8d85\u8584Na2<\/sub>Ti3<\/sub>O7<\/sub>\u7eb3\u7c73\u7247\u7ec4\u88c5\u7684\u7a7a\u5fc3\u7403\uff1bNa2<\/sub>Ti3<\/sub>O7<\/sub> HSs\u4e3a\u65e0\u78b3\u5305\u8986\u8d85\u8584Na2<\/sub>Ti3<\/sub>O7<\/sub>\u7eb3\u7c73\u9897\u7c92\u7ec4\u88c5\u7684\u7a7a\u5fc3\u7403\u3002<\/p>\n

\u56fe<\/strong>2 <\/strong>\u6c22\u6c27\u5316\u949b\u6d82\u8986\u524d\u540e\u4e8c\u6c27\u5316\u7845\u7403\u7684\u5f62\u8c8c\u8868\u5f81<\/strong><\/p>\n

\"\"<\/p>\n

a)<\/strong> \u4e8c\u6c27\u5316\u7845\u7403\u4f53\u7684SEM\u56fe\uff1b<\/p>\n

b-c)<\/strong> Si@Ti(OH)x<\/sub>\u7403\u4f53\u7684SEM\u548cTEM\u56fe\uff1b<\/p>\n

d-f)<\/strong> Na2<\/sub>Ti3<\/sub>O7<\/sub>@C HHSs\u7684SEM\u3001TEM\u3001HRTEM\u56fe\u3002<\/p>\n

\u8868\u9762\u5149\u6ed1\u4e14\u76f4\u5f84\u9ad8\u5ea6\u5747\u4e00\u7684SiO2<\/sub>\u5728\u6d82\u8986\u540e\u8868\u9762\u53d8\u5f97\u975e\u5e38\u7c97\u7cd9\uff0c\u8868\u660e\u6c22\u6c27\u5316\u949b\u6210\u529f\u6d82\u8986\u5728\u4e86SiO2<\/sub>\u7403\u4f53\u7684\u8868\u9762\u4e0a\u3002\u5728\u900f\u5c04\u7535\u5b50\u663e\u5fae\u955c(TEM)\u56fe\u50cf\u4e0a\uff0c\u6d82\u5c42\u7684\u7c97\u7cd9\u5ea6\u548c30 nm\u539a\u5ea6\u6e05\u6670\u53ef\u89c1\u3002Na2<\/sub>Ti3<\/sub>O7<\/sub>@C HHSs\u5f62\u6001\u4e0e\u7528\u6c22\u6c27\u5316\u94a0\u5904\u7406\u540e\u7684\u9897\u7c92\u7684\u5f62\u6001\u51e0\u4e4e\u76f8\u540c\uff0c\u78b3\u6d82\u5c42\u8d85\u8584\u4e14\u9ad8\u5ea6\u5747\u5300\u3002\u7a7a\u5fc3\u7ed3\u6784\u6e05\u6670\u53ef\u89c1\uff0c\u58f3\u5c42\u539a\u5ea6\u5927\u7ea6\u4e3a40 nm\u3002<\/p>\n

\u56fe<\/strong>3 Na2<\/sub>Ti3<\/sub>O7<\/sub>@C HHSs<\/strong>\u7684\u7ed3\u6784\u5206\u6790<\/strong><\/p>\n

\"\"<\/p>\n

a)<\/strong> Na2<\/sub>Ti3<\/sub>O7<\/sub>@C HHSs\u7684XRD\u56fe\uff1b<\/p>\n

b)<\/strong> Na2<\/sub>Ti3<\/sub>O7<\/sub>@C HHSs\u7684\u62c9\u66fc\u5149\u8c31\uff1b<\/p>\n

c-d)<\/strong> Na2<\/sub>Ti3<\/sub>O7<\/sub>@C HHSs\u7684XPS\u6d4b\u91cf\u548c\u9ad8\u5206\u8fa8\u7387N1s\u5149\u8c31\u3002<\/p>\n

\u56fe<\/strong>4 Na2<\/sub>Ti3<\/sub>O7<\/sub>@ C HHSs<\/strong>\u7684\u7535\u5316\u5b66\u6027\u80fd\u8868\u5f81<\/strong><\/p>\n

\"\"<\/p>\n

a)<\/strong> \u7535\u6d41\u5bc6\u5ea6\u4e3a1C\u65f6\u7684\u7b2c\u4e00\u6b21\u3001\u7b2c\u4e8c\u6b21\u548c\u7b2c\u4e94\u6b21\u5faa\u73af\u7684\u521d\u59cb\u653e\u7535-\u5145\u7535\u7535\u538b\u5206\u5e03;<\/p>\n

b)<\/strong> Na2<\/sub>Ti3<\/sub>O7<\/sub>@C HHSs\uff0cNa2<\/sub>Ti3<\/sub>O7 <\/sub>HHSs\u548cNa2<\/sub>Ti3<\/sub>O7 <\/sub>HSs\u7684\u500d\u7387\u6027\u80fd\u6d4b\u8bd5\u56fe\uff1b<\/p>\n

c)<\/strong> \u5728\u9ad8\u7535\u6d41\u5bc6\u5ea650 C\u65f6\uff0cNa2<\/sub>Ti3<\/sub>O7<\/sub>@C HHSs\u7684\u5faa\u73af\u6027\u80fd\u6d4b\u8bd5\u56fe\uff1b<\/p>\n

d)<\/strong> \u4e0d\u540c\u626b\u63cf\u901f\u7387\u4e0b\u7684Na2<\/sub>Ti3<\/sub>O7<\/sub>@C HHSs\u7684CV\u66f2\u7ebf\uff1b<\/p>\n

e)<\/strong> \u4e0d\u540c\u626b\u63cf\u901f\u7387\u4e0b\uff0c\u7535\u5bb9\u5bf9\u603b\u5bb9\u91cf\u7684\u8d21\u732e\u56fe\u3002<\/p>\n

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

\u672c\u6587\u4e2d\uff0c\u7814\u7a76\u4eba\u5458\u6210\u529f\u5408\u6210\u4e86N\u63ba\u6742\u78b3\u6d82\u8986\u7684\u8d85\u8584Na2<\/sub>Ti3<\/sub>O7<\/sub>\u7eb3\u7c73\u7247\u7ec4\u88c5\u7684\u7a7a\u5fc3\u7403\u7eb3\u7c73\u7ed3\u6784\uff0c\u5e76\u5bf9\u5176\u4f5c\u4e3a\u94a0\u79bb\u5b50\u7535\u6c60\u8d1f\u6781\u6750\u6599\u65f6\u7684\u7535\u5316\u5b66\u6027\u80fd\u8fdb\u884c\u4e86\u4e00\u7cfb\u5217\u6d4b\u8bd5\uff0c\u8be5\u6750\u6599\u8868\u73b0\u51fa\u4e86\u4f18\u5f02\u7684\u500d\u7387\u6027\u80fd\u3002\u8d85\u8584\u7eb3\u7c73\u7247\u7ec4\u88c5\u6210\u7684\u72ec\u7279\u7ed3\u6784\u7f29\u77ed\u4e86\u94a0\u79bb\u5b50\u7684\u6269\u6563\u957f\u5ea6\uff0c\u4e0e\u6b64\u540c\u65f6\uff0cN\u63ba\u6742\u78b3\u5305\u8986\u53c8\u6539\u5584\u4e86\u6750\u6599\u672c\u8eab\u7684\u7535\u5bfc\u6027\u80fd\u3002\u5728\u9ad8\u7535\u6d41\u5bc6\u5ea6\u4e0b\uff0c\u6b64\u7c7bNa2<\/sub>Ti3<\/sub>O7<\/sub>\u7a7a\u5fc3\u7403\u8868\u73b0\u51fa\u4e86\u4f18\u5f02\u7684\u94a0\u50a8\u5b58\u6027\u80fd\u3002\u672c\u7814\u7a76\u8868\u660e\uff0c\u51cf\u5c11\u7eb3\u7c73\u7247\u7684\u5c42\u6570\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8\u8fd9\u79cd\u5c42\u72b6\u6750\u6599\u7684\u7535\u5316\u5b66\u6027\u80fd\u3002\u5c42\u72b6\u6750\u6599\u5728\u7535\u6c60\u3001\u7535\u50ac\u5316\u7b49\u9886\u57df\u5185\u5e94\u7528\u5e7f\u6cdb\uff0c\u672c\u7814\u7a76\u4e3a\u5c42\u72b6\u6750\u6599\u7684\u7ed3\u6784\u8bbe\u8ba1\u53ca\u5176\u7535\u5316\u5b66\u5e94\u7528\u63d0\u4f9b\u4e86\u4e00\u79cd\u5168\u65b0\u7684\u65b9\u5f0f\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1a<\/strong>Na2<\/sub>Ti3<\/sub>O7<\/sub>@N-Doped Carbon Hollow Spheres for Sodium-Ion Batteries with Excellent Rate Performance<\/a>(Adv. Mater., 2017, DIO: 10.1002\/adma.201700989)<\/p>\n

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