{"id":131620,"date":"2018-03-26T14:00:20","date_gmt":"2018-03-26T06:00:20","guid":{"rendered":"\/\/m.iemloyee.com\/?p=131620"},"modified":"2018-03-26T02:11:59","modified_gmt":"2018-03-25T18:11:59","slug":"%e5%8d%97%e4%ba%ac%e5%a4%a7%e5%ad%a6%e9%87%91%e9%92%9f%e8%af%be%e9%a2%98%e7%bb%84adv-funct-mater-%e6%a0%b8%e6%a1%83%e7%8a%b6%e5%a4%9a%e6%a0%b8%e5%a3%b3%e7%bb%93%e6%9e%84mnonc%e7%ba%b3%e7%b1%b3","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=131620","title":{"rendered":"\u5357\u4eac\u5927\u5b66\u91d1\u949f\u8bfe\u9898\u7ec4Adv. Funct. Mater.: \u6838\u6843\u72b6\u591a\u6838\u58f3\u7ed3\u6784MnO@NC\u7eb3\u7c73\u80f6\u56ca\u6539\u5584\u9502\u79bb\u5b50\u7535\u6c60\u8d1f\u6781\u6027\u80fd"},"content":{"rendered":"

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

\u9ad8\u80fd\u91cf\u5bc6\u5ea6\u3001\u9ad8\u7a33\u5b9a\u6027\u3001\u957f\u5faa\u73af\u5bff\u547d\u7684\u9502\u79bb\u5b50\u7535\u6c60\u5728\u4fbf\u643a\u5f0f\u7535\u5b50\u8bbe\u5907\u548c\u7535\u52a8\u6c7d\u8f66\u4e2d\u6781\u5177\u53d1\u5c55\u524d\u666f\u3002\u7531\u4e8e\u77f3\u58a8\u78b3\u7535\u6781\u7406\u8bba\u5bb9\u91cf\u53d7\u9650\uff0c\u5546\u4e1a\u9502\u79bb\u5b50\u7535\u6c60\u7684\u6027\u80fd\u5230\u8fbe\u74f6\u9888\u3002\u5907\u53d7\u5173\u6ce8\u7684\u7b2cIVA\u65cf\u6750\u6599\u3001\u91d1\u5c5e\u786b\u5316\u7269\u3001\u91d1\u5c5e\u6c27\u5316\u7269\u7531\u4e8e\u5176\u4f4e\u7535\u52a8\u52bf\u503c\u3001\u9ad8\u7406\u8bba\u5bb9\u91cf\u3001\u4e30\u5bcc\u7684\u50a8\u91cf\u548c\u73af\u4fdd\u7279\u6027\uff0c\u6210\u4e3a\u65b0\u4e00\u4ee3\u9ad8\u5bb9\u91cf\u7535\u6781\u6750\u6599\u3002\u4e0e\u6b64\u540c\u65f6\uff0c\u9650\u5236\u5176\u53d1\u5c55\u7684\u4e00\u4e9b\u95ee\u9898\u4e5f\u4e9f\u5f85\u89e3\u51b3\uff1a\uff081\uff09\u91d1\u5c5e\u6c27\u5316\u7269\u7535\u5b50\u4f20\u5bfc\u6027\u8f83\u5dee\uff0c\u4e0d\u5229\u4e8e\u9502\u79bb\u5b50\u5d4c\u5165\/\u8131\u51fa\u3002\uff082\uff09\u5145\u653e\u7535\u5faa\u73af\u8fc7\u7a0b\u4e2d\u5267\u70c8\u7684\u4f53\u79ef\u53d8\u5316\u4f1a\u5bfc\u81f4\u91d1\u5c5e\u6c27\u5316\u7269\u7684\u7c89\u788e\u548c\u5faa\u73af\u8870\u51cf\uff0c\u56e0\u6b64\uff0c\u9700\u8981\u5408\u7406\u7684\u8bbe\u8ba1\u548c\u7eb3\u7c73\u590d\u5408\u7ed3\u6784\u6765\u6539\u5584\u7535\u5316\u5b66\u6027\u80fd\u3002\u57fa\u4e8e\u91d1\u5c5e\u6c27\u5316\u7269\u7684\u8d85\u7ec6\u7eb3\u7c73\u7ed3\u6784\u5de5\u7a0b\u53d7\u5230\u5e7f\u6cdb\u5173\u6ce8\uff0c\u53ef\u589e\u52a0\u7535\u6781-\u7535\u89e3\u8d28\u754c\u9762\u7684\u63a5\u89e6\uff0c\u7f29\u77edLi+<\/sup>\u7684\u4f20\u8f93\u8ddd\u79bb\uff0c\u91ca\u653e\u8131\u5d4c\u8fc7\u7a0b\u4e2d\u7684\u7ed3\u6784\u5e94\u529b\u3002\u7528\u91d1\u5c5e\u6c27\u5316\u7269\u548c\u78b3\u6750\u6599\u6574\u5408\u6210\u7ec4\u7ec7\u826f\u597d\u7684\u590d\u5408\u6750\u6599\u662f\u6709\u6548\u7684\u7b56\u7565\u4e4b\u4e00\uff0c\u78b3\u6750\u6599\u5728\u5f53\u4e2d\u53ef\u8d77\u5230\u76f8\u5f53\u7684\u5f71\u54cd\uff1a\uff081\uff09\u589e\u5f3a\u5bfc\u7535\u6027\uff082\uff09\u9632\u6b62\u7c89\u5316\uff083\uff09\u51cf\u5c11\u7535\u6781\/\u7535\u89e3\u8d28\u95f4\u7684\u8fb9\u7f18\u53cd\u5e94\u3002\u4f46\u901a\u5e38\u6765\u8bf4\uff0c\u590d\u5408\u7535\u6781\u6750\u6599\u6d89\u53ca\u7684\u5236\u5907\u65b9\u6cd5\u548c\u7ed3\u6784\u63a7\u5236\u8f83\u4e3a\u590d\u6742\uff0c\u56e0\u6b64\uff0c\u5f00\u53d1\u4e00\u79cd\u66f4\u5bb9\u6613\u548c\u901a\u7528\u7684\u65b9\u6cd5\uff0c\u5236\u5907\u5747\u5300\u5305\u8986\u91d1\u5c5e\u6c27\u5316\u7269\u7eb3\u7c73\u9897\u7c92\u7684\u78b3\u6846\u67b6\uff0c\u540c\u65f6\u5177\u6709\u671f\u671b\u7684\u826f\u597d\u7684\u7ec4\u6210\u548c\u6027\u80fd\u7684\u590d\u5408\u6750\u6599\u4ecd\u6781\u5bcc\u6311\u6218\u6027\u3002<\/p>\n

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

\u8fd1\u671f\uff0c\u5357\u4eac\u5927\u5b66\u91d1\u949f\u6559\u6388<\/strong>\u8bfe\u9898\u7ec4\u7528\u201c\u6c34\u70ed\u6cd5+\u70ed\u5904\u7406\u201d\u7684\u65b9\u6cd5\u5236\u5907\u4e86\u6838\u6843\u72b6\u591a\u6838\u58f3\u7ed3\u6784\u7684MnO@NC\u7eb3\u7c73\u80f6\u56ca\uff0c\u5728Advanced Energy Materials<\/strong>\u4e0a\u53d1\u8868\u9ad8\u6c34\u5e73\u8bba\u6587\u2018Walnut-Like Multicore\u2013Shell MnO Encapsulated Nitrogen-Rich Carbon Nanocapsules as Anode Material for Long-Cycling and Soft-Packed Lithium-Ion Batteries\u2019<\/strong>\u3002\u805a\u82ef\u80fa(PANI)\u4f5c\u4e3a\u78b3\u524d\u9a71\u4f53\uff0c\u63d0\u4f9b\u9ad8\u542b\u91cf\u7684\u6c2e\u539f\u5b50\u63ba\u6742\uff0c\u540c\u65f6\u975e\u5e38\u5229\u4e8e\u63d0\u9ad8\u6da6\u6e7f\u6027\u548c\u5bfc\u7535\u6027\u3001\u6709\u6548\u6291\u5236MnO\u7eb3\u7c73\u9897\u7c92\u7684\u805a\u96c6\u548c\u7c89\u5316\u3002\u5177\u6709\u5747\u5300\u5206\u6563\u7684MnO\u7eb3\u7c73\u9897\u7c92\u548c\u5bfc\u7535\u78b3\u58f3\u534f\u540c\u4f18\u52bf\u7684MnO@NC\u7eb3\u7c73\u80f6\u56ca\u8868\u73b0\u51fa\u663e\u8457\u7684\u9502\u50a8\u5b58\u6027\u80fd\u3002\u5546\u7528LiFePO4<\/sub>\u6b63\u6781\u548cMnO@NC\u8d1f\u6781\u7684\u8f6f\u5305\u88c5\u5168\u7535\u6c60\u663e\u793a\u51fa\u4f18\u5f02\u7684\u7075\u6d3b\u6027\u548c\u5faa\u73af\u7a33\u5b9a\u6027\u3002<\/p>\n

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

\u56fe1.<\/strong> MnO@NC<\/strong>\u7eb3\u7c73\u80f6\u56ca\u5236\u5907\u8fc7\u7a0b\u53ca\u5f62\u8c8c\u8868\u5f81<\/strong><\/p>\n

\"\"<\/p>\n

a)<\/strong> MnO@NC\u7eb3\u7c73\u80f6\u56ca\u5236\u5907\u8fc7\u7a0b\uff1a<\/p>\n

\uff081\uff09\u9996\u5148\u901a\u8fc7\u542b\u6709KMnO4<\/sub>\uff0cMn\uff08NO3<\/sub>\uff092<\/sub>\u548c\u805a\u82ef\u80fa\u7684\u6eb6\u6db2\u5408\u6210Mn3<\/sub>O4<\/sub> @ PANI\u7eb3\u7c73\u80f6\u56ca\u3002<\/p>\n

\uff082\uff09\u5c06\u5236\u5907\u597d\u7684Mn3<\/sub>O4<\/sub> @ PANI\u7eb3\u7c73\u80f6\u56ca\u5728N2<\/sub>\u6c14\u6c1b\u4e2d\u70ed\u5904\u7406\u5236\u5907MnO@NC\u7eb3\u7c73\u80f6\u56ca\u3002\u5728\u7145\u70e7\u671f\u95f4\uff0c\u5c06Mn3<\/sub>O4<\/sub>\u7eb3\u7c73\u9897\u7c92\u8fd8\u539f\u6210MnO\u7eb3\u7c73\u9897\u7c92\uff0c\u5e76\u5c06PANI\u58f3\u4f53\u78b3\u5316\u6210N\u63ba\u6742\u78b3\u7eb3\u7c73\u80f6\u56ca\uff1b<\/p>\n

b)<\/strong>\u4e2d\u95f4\u4ea7\u7269Mn3<\/sub>O4<\/sub> @ PANI\u7eb3\u7c73\u80f6\u56ca\u5728SEM\u4e0b\u5448\u73b0\u4e0d\u89c4\u5219\u5f62\u8c8c\uff1b<\/p>\n

c-d)<\/strong>\u70ed\u5904\u7406\u540e\u5f97\u5230\u7684MnO@NC\u7eb3\u7c73\u80f6\u56ca\u7c92\u5f84\u53d8\u5c0f, mapping\u56fe\u793a\u4e2d\u53ef\u89c1C\/N\/O\/Mn\u5747\u5300\u5206\u6563\u7684MnO@NC \uff1b<\/p>\n

e-g)<\/strong>MnO@NC\u7eb3\u7c73\u80f6\u56ca\u5728\u900f\u5c04\u7535\u955c\u4e0b\u76f4\u5f84d\u224815 nm\uff0c\u5747\u5300\u5c01\u88c5\u5728C\u5c42\u5185\uff08\u5448\u6838\u6843\u72b6\uff09\uff0c\u53ef\u4ee5\u5f88\u597d\u5730\u63d0\u9ad8\u7535\u5bfc\u7387\u548c\u9632\u6b62MnO\u9897\u7c92\u7684\u805a\u96c6\u548c\u7834\u788e\u3002\u9ad8\u5206\u8fa8\u56fe\u50cf\u53ef\u89c1MnO\uff08111\uff09\u9762\u6676\u683c\u6761\u7eb9\uff1b<\/p>\n

\u7528HCl\u523b\u8680MnO\u6838\u540e\uff0c\u4e2d\u7a7a\u6c2e\u63ba\u6742\u78b3\u5c42\u539a\u5ea6\u7ea6\u4e3a5nm\uff0c\u8bc1\u660eMnO@NC\u7eb3\u7c73\u80f6\u56ca\u5bf9MnO\u5c01\u88c5\u5747\u5300\u3002<\/p>\n

\u56fe<\/strong>2<\/strong>. MnO@NC<\/strong>\u7eb3\u7c73\u80f6\u56ca<\/strong>XRD<\/strong>\u884d\u5c04\u56fe\u8c31<\/strong><\/p>\n

\u00a0\"\"<\/strong><\/p>\n

a)<\/strong>X\u5c04\u7ebf\u884d\u5c04\u56fe\u8c31\u4e2d\uff0c34.9\u00b0,40.6\u00b0, 58.8\u00b0, 70.2\u00b0,\u548c73.9\u00b0\u5206\u522b\u5bf9\u5e94\u78b3\u5316\u540e\u7684MnO@NC\u7eb3\u7c73\u80f6\u56ca\u7684(111),(200), (220), (311),\u548c (222)\u6676\u9762\uff0c 20-30\u00b0\u5bf9\u5e94\u6c2e\u63ba\u6742\u7684\u78b3\u58f3\uff1b<\/p>\n

b)<\/strong>\u62c9\u66fc\u5149\u8c31\u4e2d664cm-1<\/sup>\u5904\u53ef\u89c1Mn-O\u5cf0\u4f4d\uff0cC\u5c42\u7684\u77f3\u58a8\u5316\u7a0b\u5ea6 Id\/Ig=0.91\uff0c\u8868\u660e\u56e0N\u63ba\u6742\u5f15\u8d77\u4e86\u4e00\u5b9a\u7684\u7ed3\u6784\u7f3a\u9677\u548c\u626d\u66f2\u3002\u8865\u5145\u4fe1\u606f\u4e2d\u8fd8\u8bc1\u660e\u4e86C=C\/C-N\/C-O\/Mn-O-C\u7684\u5b58\u5728\uff0c\u89e3\u91ca\u4e86MnO\u4e0e\u78b3\u58f3\u4e4b\u95f4\u7684\u8fde\u63a5\u65b9\u5f0f\uff1b<\/p>\n

c)<\/strong>XPS\u663e\u793a\u542b\u6709Mn\u3001O\u3001C\u3001N\u56db\u79cd\u5143\u7d20\uff1b<\/p>\n

\u542b\u91cf\u5206\u6790\uff1a C=20.5%,N=1.4%,Mn=58.3%, O=19.8%,\u4e0eTGA\/EDS\u7ed3\u679c\u4e00\u81f4\uff1b<\/p>\n

d)<\/strong>MnO@NC\u7eb3\u7c73\u80f6\u56ca\u9ad8\u5206\u8fa8 Mn 2p XPS \u56fe\u8c31\u3002<\/p>\n

\u00a0N\u7684\u4f5c\u7528\uff1a\uff081\uff09\u63d0\u9ad8\u7535\u5bfc\u7387\uff082\uff09\u589e\u52a0Li+<\/sup>\u5d4c\u5165\u7684\u6d3b\u6027\u4f4d\u70b9\u3002<\/p>\n

\u56fe<\/strong>3.<\/strong>\u7535\u5316\u5b66\u6027\u80fd\u6d4b\u8bd5<\/strong><\/p>\n

\"\"<\/p>\n

a)<\/strong> 2 mV s\u22121<\/sup>\u626b\u63cf\u901f\u5ea6\u4e0b\u76840.01-3.0 V \u8303\u56f4\u5185\u7684CV\u66f2\u7ebf\uff1a<\/p>\n

\u7b2c\u4e00\u5708\u6b63\u626b\uff1a0.11V\u5bf9\u5e94\u53cd\u5e94\uff1aMnO + 2Li+<\/sup> + 2e\u2212<\/sup> \u2192 Mn + Li2<\/sub>O\u3002<\/p>\n

0.59V\u5bf9\u5e94SEI\uff0c 1.36V\u5bf9\u5e94\u6b8b\u7559\u7684\u9ad8\u4ef7Mn3+\/4+<\/sup>\u8fd8\u539f\u53cd\u5e94\u3002<\/p>\n

\u7b2c\u4e00\u5708\u8d1f\u626b\uff1a1.35V\u5bf9\u5e94\u53cd\u5e94\uff1aMn + Li2<\/sub>O \u2192 MnO + 2Li+<\/sup> + 2e\u2212<\/sup><\/p>\n

\u5728\u968f\u540e\u7684CV\u5faa\u73af\u4e2d\uff0c\u57280.11V\u5904\u7684\u8fd8\u539f\u5cf0\u79fb\u52a8\u5230\u5927\u7ea60.31V\uff0c\u8868\u660e\u5728\u7b2c\u4e00\u5708\u9502\u5316<\/p>\n

\u8fc7\u7a0b\u4e4b\u540eSEI\u5c42\u7684\u52a8\u529b\u5b66\u6027\u80fd\u548c\u7a33\u5b9a\u6027\u5f97\u5230\u6539\u5584\uff1b<\/p>\n

b)<\/strong>500 mA g\u2212<\/sup>1<\/sup>\u4e0b\u7684\u5145\u653e\u66f2\u7ebf\uff1a<\/p>\n

\u7b2c\u4e00\u5708\uff1a\u653e\u7535\u5bb9\u91cf\u8fbe\u5230 1139.4 mAh g\u2212<\/sup>1<\/sup>\uff0c\u5145\u7535\u5bb9\u91cf682.1 mAh g\u2212<\/sup>1<\/sup><\/p>\n

\u653e\u7535\u5e73\u53f0 0.23V\uff1aMn2+<\/sup>\/Mn<\/p>\n

1st<\/sup> cycle\uff0c1.0\u548c1.8V\u4e4b\u95f4\u7684\u659c\u7387\u5f52\u56e0\u4e8eMn\u6c27\u5316\u6210Mn2 +<\/sup><\/p>\n

2nd<\/sup> cycle\uff0c\u653e\u7535\u5e73\u53f0\u7531\u4e8e\u52a8\u529b\u5b66\u589e\u5f3a\u548c\u91d1\u5c5e\u7eb3\u7c73\u9897\u7c92\u548cLi2<\/sub>O\u7684\u5f62\u6210\u800c\u8f6c\u53d8\u4e3a\u7ea60.49V\uff1b<\/p>\n

c)<\/strong>500\u5708\u540e\u5bb9\u91cf\u4e3a767 mAhg-1<\/sup>\uff0c\u9ad8\u4e8e\u7406\u8bba\u5bb9\u91cf756 mAhg-1<\/sup>\uff1a<\/p>\n

\u539f\u56e0\uff1a\u6d3b\u5316\u8fc7\u7a0b\uff0c\u5728\u5145\u653e\u7535\u5faa\u73af\u4e2d\uff0cMn2+<\/sup>\u53d8\u4e3aMn4<\/sup>+<\/sup>\uff1b<\/p>\n

d)<\/strong>\u500d\u7387\u6027\u80fd\uff1a<\/p>\n

5000mAg-1<\/sup>\u65f6 358mAhg-1<\/sup>\uff0c\u5f53\u7535\u6d41\u5bc6\u5ea6\u56de\u5230500mAg-1<\/sup>\u65f6\uff0c\u5bb9\u91cf\u56de\u590d\u5230658 mAhg-1<\/sup>\u3002<\/p>\n

\u8fd9\u8868\u660eMnO @ NC\u7eb3\u7c73\u80f6\u56ca\u7531\u4e8e\u8d85\u7ec6MnO\u6838\u5fc3\u548c\u5bfc\u7535\u78b3\u7eb3\u7c73\u58f3\u7684\u534f\u540c\u4f5c\u7528\u6709\u5229\u4e8eLi +<\/sup>\u987a\u5229\u5730\u63d2\u5165\/\u8131\u51fa\u3002<\/p>\n

\u56fe<\/strong>4.<\/strong>\u5faa\u73af\u7a33\u5b9a\u6027\u6d4b\u8bd5<\/strong><\/p>\n

\"\"<\/p>\n

\u5faa\u73af\u7a33\u5b9a\u6027\u597d\uff0c\u5bb9\u91cf\u4fdd\u6301\u7387\u9ad8\u30021000\u5708\u540e\u4ecd\u53ef\u4fdd\u6709624mAhg-1<\/sup>\uff0c\u5e93\u4f26\u6548\u7387\u8fd1100%\uff0c\u76f8\u6bd4\u5176\u4ed6MnO\u57fa\u6750\u6599\u6765\u8bf4\uff0c\u6027\u80fd\u4f18\u8d8a\u3002<\/p>\n

\u56fe<\/strong>5.<\/strong>\u8f6f\u5305\u7535\u6c60\u7684\u56fe\u793a\u53ca\u5145\u653e\u66f2\u7ebf<\/strong><\/p>\n

\"\"<\/p>\n

a-b)<\/strong>\u8f6f\u5305\u7535\u6c60\u3002\u56feb.<\/strong>\u7ed9\u51fa\u4e86\u57280.01-3.8V\u7684\u7535\u538b\u7a97\u53e3\u4e0b85mAg-1<\/sup>\u7684\u5b8c\u6574\u7535\u6c60\u7684\u653e\u7535\/\u5145\u7535\u66f2\u7ebf\u3002\u7279\u5b9a\u5bb9\u91cf\u662f\u57fa\u4e8eLiFePO4<\/sub>\u7684\u8d28\u91cf\u8ba1\u7b97\u7684\uff0c\u56e0\u4e3a\u5168\u7535\u6c60\u662f\u6b63\u6781\u9650\u5236\u7684\u3002\u7b2c\u4e00\u5708\u653e\u7535\u5bb9\u91cf127mAhg-1<\/sup>\uff0c\u5145\u7535\u5bb9\u91cf145mAhg-1<\/sup>\u3002<\/p>\n

c-d)<\/strong>\u5168\u7535\u6c60\u5faa\u73af200\u5708\u540e\u6bd4\u5bb9\u91cf60mAhg-1<\/sup>,\u5c55\u5f00\u3001\u5f2f\u66f2\u5747\u53ef\u70b9\u4eaeLEDs\u3002<\/p>\n

 <\/p>\n

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\u6587\u732e\u94fe\u63a5\uff1aWalnut-Like Multicore\u2013Shell MnO Encapsulated Nitrogen-Rich Carbon Nanocapsules as Anode Material for Long-Cycling and Soft-Packed Lithium-Ion Batteries<\/a>\uff08Adv. Funct. Mater. 2018, DOI: 10.1002\/adfm.201800003\uff09<\/p>\n

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