{"id":259549,"date":"2024-04-22T06:22:41","date_gmt":"2024-04-21T22:22:41","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=259549"},"modified":"2024-04-21T20:34:07","modified_gmt":"2024-04-21T12:34:07","slug":"chem-eng-j%ef%bc%9a%e9%85%9e%e8%8f%81%e5%9f%ba%e5%9b%9b%e6%96%b9%e5%85%b1%e4%bb%b7%e6%9c%89%e6%9c%ba%e6%a1%86%e6%9e%b6%e5%b1%82%e7%ba%b3%e7%b1%b3%e7%a1%85%e6%9e%84%e5%bb%ba%e9%ab%98%e8%80%90%e4%b9%85","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=259549","title":{"rendered":"Chem Eng J\uff1a\u915e\u83c1\u57fa\u56db\u65b9\u5171\u4ef7\u6709\u673a\u6846\u67b6\u5c42@\u7eb3\u7c73\u7845\u6784\u5efa\u9ad8\u8010\u4e45\u6027\u7684\u9502\u79bb\u5b50\u7535\u6c60\u9633\u6781\u6750\u6599"},"content":{"rendered":"

1<\/strong>\u3001\u5f15\u8a00<\/strong><\/p>\n

Si\u4f5c\u4e3a\u9502\u79bb\u5b50\u7535\u6c60\uff08LIBs\uff09\u884c\u4e1a\u4e0b\u4e00\u4ee3\u8d1f\u6781\u6750\u6599\u4e2d\u77f3\u58a8\u7684\u6700\u4f73\u66ff\u4ee3\u54c1\uff0c\u5728\u5176\u5b9e\u9645\u5e94\u7528\u4e2d\u9762\u4e34\u7740\u4e00\u4e2a\u6311\u6218\uff1a\u7531\u4e8e\u5408\u91d1\u5316\u7684\u5d4c\u9502\u673a\u5236\uff0c\u7845\u7684\u4f53\u79ef\u81a8\u80c0\u548c\u5e94\u529b\u5de8\u5927\uff0c\u5bfc\u81f4\u7845\u9897\u7c92\u7c89\u788e\u5e76\u4ece\u7535\u6781\u4e0a\u8131\u843d\u3002\u5c3d\u7ba1\u8bbe\u8ba1\u4e86\u4e0d\u540c\u7684\u7eb3\u7c73\u7ed3\u6784\uff0c\u7eb3\u7c73\u591a\u5b54\u7845\u548c\u7845\u7eb3\u7c73\u9897\u7c92 (Si NPs)\uff0c\u4ee5\u89e3\u51b3\u7c89\u788e\u95ee\u9898\uff0c\u4f46\u7845\u8d1f\u6781\u8868\u9762\u56fa\u4f53\u7535\u89e3\u8d28\u754c\u9762 (SEI) \u5c42\u7684\u8fde\u7eed\u751f\u957f\u4ecd\u7136\u662f\u5176\u5e94\u7528\u4e2d\u7684\u4e00\u4e2a\u5173\u952e\u95ee\u9898\uff0c\u5929\u7136SEI\u5c42\u7684\u4e0d\u7a33\u5b9a\u6027\u5c06\u6d88\u8017\u6db2\u4f53\u7535\u89e3\u8d28\uff0c\u5e76\u5bfc\u81f4LIBs\u5931\u6548\u3002\u56e0\u6b64\uff0c\u5bfb\u627e\u4e00\u79cd\u6709\u6548\u4e14\u901a\u7528\u7684\u8c03\u8282\u7b56\u7565\u5b9e\u73b0\u7845\u8d1f\u6781\u7684\u7ed3\u6784\u7a33\u5b9a\u4ee5\u53ca\u754c\u9762\u7a33\u5b9a\u7684SEI\u00a0\u819c\u5177\u6709\u91cd\u5927\u7684\u79d1\u5b66\u610f\u4e49\uff0c\u4e14\u662f\u4e00\u4e2a\u5de8\u5927\u7684\u6311\u6218\u3002COFs\u4f5c\u4e3a\u4e00\u7c7b\u4e8c\u7ef4\u6216\u4e09\u7ef4\u591a\u5b54\u805a\u5408\u7269\uff0c\u80fd\u591f\u5c06\u6709\u673a\u6784\u5efa\u5757\u7cbe\u7ec6\u5730\u6574\u5408\u6210\u5177\u6709\u539f\u5b50\u7cbe\u5ea6\u7684\u6709\u5e8f\u7ed3\u6784\u3002\u5b83\u5177\u6709\u5b54\u5f84\u53ef\u8c03\u3001\u6c38\u4e45\u5b54\u9699\u7387\u3001\u4f4e\u5bc6\u5ea6\u3001\u9ad8\u6bd4\u8868\u9762\u79ef\u3001\u9ad8\u7a33\u5b9a\u6027\u3001\u826f\u597d\u7684\u7535\u5316\u5b66\u7a33\u5b9a\u6027\u7b49\u7279\u70b9\uff0c\u662f\u754c\u9762\u6539\u6027\u548cSEI\u5c42\u7ec4\u6210\u4f18\u5316\u7684\u4f18\u826f\u7535\u6781\u6750\u6599\uff0c\u53ef\u5b9e\u73b0\u9ad8\u6027\u80fd\u7684Si\u8d1f\u6781\u3002\u76ee\u524d\uff0cCOFs\u6539\u6027\u7845\u8d1f\u6781\u7684\u7b56\u7565\u90fd\u6709\u6548\u5730\u514b\u670d\u4e86\u7eb3\u7c73\u7845\u5728\u5145\u653e\u7535\u8fc7\u7a0b\u4e2d\u7684\u4f53\u79ef\u81a8\u80c0\uff0c\u4f46\u5e94\u7528\u4e8e\u7535\u6781\u6750\u6599\u7684COFs\u5927\u591a\u4e3a\u516d\u8fb9\u5f62\u6216\u83f1\u5f62\u5b54\u9699\uff0c\u5176\u6784\u5efa\u5355\u5143\u7ed3\u6784\u7b80\u5355\uff0c\u7ed3\u6784\u7a33\u5b9a\u6027\u4e0d\u5982\u56db\u8fb9\u5f62\u5b54\u9699\uff0c\u5bfc\u81f4\u5728\u9ad8\u7535\u6d41\u5bc6\u5ea6\u4e0b\u957f\u5faa\u73af\u65f6\u65e0\u6cd5\u8fbe\u5230\u9884\u671f\u7684\u5bb9\u91cf\u4fdd\u6301\u7387\u3002<\/p>\n

2<\/strong>\u3001\u6210\u679c\u7b80\u4ecb<\/strong><\/p>\n

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\n <\/strong><\/p>\n

3<\/strong>\u3001\u56fe\u6587\u5bfc\u8bfb<\/strong><\/p>\n

\u5229\u7528\u6c28\u4e0e\u9178\u9150\u7684\u9170\u5316\u53cd\u5e94\uff0c\u5728\u7eb3\u7c73Si\u9897\u7c92\u8868\u9762\u6d82\u8986PMDA-NiPc\u6d82\u5c42\u3002\u5728\u6b64\u53cd\u5e94\u5b8c\u6210\u540e\uff0cPMDA-NiPc\u503e\u5411\u4e8e\u4e0eSi\u53d1\u751f\u8303\u5fb7\u534e\u4f5c\u7528\uff0c\u800c\u4e0d\u4f1a\u53d1\u751f\u5316\u5b66\u952e\u53cd\u5e94\u3002PMDA-NiPc\u662f\u4e00\u79cd\u542b\u6709\u03c0-\u03c0\u5171\u8f6d\u82ef\u73af\u7684\u591a\u5b54\u7f51\u7edc\u7ed3\u6784\uff0c\u901a\u8fc7\u7279\u5b9a\u7684\u6392\u5217\u65b9\u5f0f\u5f62\u6210\u03c0-\u03c0\u5171\u8f6d\u82ef\u73af\uff0c\u6709\u5229\u4e8e\u9502\u79bb\u5b50\u6cbf\u7740\u7279\u5b9a\u7684\u8def\u5f84\u8fd0\u8f93\uff0c\u6709\u6548\u5730\u63d0\u9ad8\u4e86\u8fd0\u8f93\u52a8\u529b\u5b66\u3002\u901a\u8fc7Raman\u3001FTIR\u5149\u8c31\u3001\u56fa\u4f53\u6838\u78c113<\/sup>C\u6765\u9a8c\u8bc1PMDA-NiPc@Si\u7684\u5316\u5b66\u7ed3\u6784\u53d1\u73b0\u7eb3\u7c73Si\u4e2d\u7279\u5f81\u5cf0\u548c\u884d\u5c04\u5cf0\u5728PMDA-NiPc@Si\u4e2d\u90fd\u5f97\u5230\u4e86\u5b8c\u6574\u4fdd\u7559\uff0c\u4e14PMDA-NiPc@Si\u4e2d\u7684C\u539f\u5b50\u7c7b\u578b\u4e0ePMDA-NiPc\u76f8\u4e00\u81f4\uff0c\u8bf4\u660e\u7eb3\u7c73Si\u7684\u5f15\u5165\u5e76\u6ca1\u6709\u6539\u53d8PMDA-NiPc\u7684\u5206\u5b50\u7ed3\u6784\uff0c\u4fdd\u6301\u4e86\u7a33\u5b9a\u7684\u4e8c\u7ef4\u7f51\u7edc\u5c42\u72b6\u7ed3\u6784\uff0c\u4e3a\u53d6\u5f97\u4f18\u5f02\u7535\u5316\u5b66\u6027\u80fd\u5960\u5b9a\u4e86\u57fa\u7840\u3002\u7eb3\u7c73Si\u7ecfPMDA-NiPc\u6d82\u5c42\u540e\u6bd4\u8868\u9762\u79ef\u51cf\u5c0f\uff0c\u632f\u5b9e\u5bc6\u5ea6\u589e\u52a0\uff0c\u6709\u52a9\u4e8e\u63d0\u9ad8\u6750\u6599\u7684\u4f53\u79ef\u6bd4\u5bb9\u91cf\u3002<\/p>\n

XPS\u6d4b\u8bd5\u8fdb\u4e00\u6b65\u63ed\u793a\u4e86PMDA-NiPc@Si\u7684\u5316\u5b66\u7ed3\u6784\uff0c\u603b\u8c31\u663e\u793a\u51faPMDA-NiPc@Si\u5177\u6709\u660e\u663e\u7684N 1s\u3001C 1s\u3001Si 2s\u548cSi 2p\u5cf0\uff0c\u8fd9\u4e9b\u5cf0\u5728PMDA-NiPc\u548c\u7eb3\u7c73Si\u5404\u81ea\u7684\u5143\u7d20\u603b\u8c31\u90fd\u6709\u4f53\u73b0\uff0c\u4e0e\u7eb3\u7c73Si\u76f8\u6bd4\uff0cSi 2s\u548cSi 2p\u7684\u5f3a\u5ea6\u5728PMDA-NiPc@Si\u6709\u6240\u964d\u4f4e\uff0c\u8868\u660e\u7eb3\u7c73Si\u9897\u7c92\u88abPMDA-NiPc\u6d82\u5c42\u5305\u88f9\u5f97\u5f88\u597d\u3002\u6b64\u5916\uff0cC 1s\u5149\u8c31\u663e\u793aPMDA-NiPc@Si\u7684\u56db\u4e2a\u5cf0\u5206\u522b\u4f4d\u4e8e283.87\u3001285.14\u3001288.25\u548c290.65 eV\uff0c\u5bf9\u5e94\u4e8e\u82ef\u73af\u4e0a\u7684C=C\u3001C-N\u3001C=O\u3001\u4f53\u7cfb\u4e2d\u7684\u03c0-\u03c0\u5171\u8f6d\u7ed3\u6784\u3002\u5728PMDA-NiPc\u53ef\u4ee5\u53d1\u73b0\u540c\u6837\u89c4\u5f8b\u7684\u56db\u4e2a\u5cf0\u3002\u6b64\u5916\uff0c\u5728Si NP\u548cPMDA-NiPc@Si\u7684Si 2p\u5149\u8c31\u4e2d99.2\u548c103.5 eV\u5904\u663e\u793a\u7684\u4e24\u4e2a\u4e0d\u540c\u7684\u5cf0\u6307\u5b9a\u4e3aSi 2p\u80fd\u7ea7\uff08Si-Si\u952e\uff09\u548c\u949d\u5316\u6c27\u5316\u5c42\uff08Si-O-Si\u952e\uff09\u3002\u53e6\u5916\uff0cPMDA-NiPc\u7684Si 2p\u5149\u8c31\u7f3a\u4e4fSi\u7684\u76f8\u5173\u5cf0\uff0cSi NP\u7684C 1s\u5149\u8c31\u7f3a\u4e4fC\u5cf0\uff0c\u8fd9\u4e0eFTIR\u7ed3\u679c\u4e00\u81f4\u3002\u8fd9\u4e9b\u7ed3\u679c\u8868\u660e\uff0c\u7845\u7eb3\u7c73\u9897\u7c92\u8868\u9762\u5b58\u5728\u6709PMDA-NiPc\u5305\u8986\u5c42\u3002<\/p>\n

\u901a\u8fc7SEM\u6d4b\u8bd5\u8fdb\u4e00\u6b65\u8bc1\u5b9e\u4e86PMDA-NiPc@Si\u6d82\u5c42\u5728\u7eb3\u7c73Si\u8868\u9762\u7684\u5b58\u5728\u5f62\u5f0f\uff0c\u5982\u56fe3\u6240\u793a\u3002\u5bf9\u6bd4\u5305\u8986\u524d\u540e\u7684\u6574\u4f53\u5f62\u8c8c\u53ef\u4ee5\u770b\u51fa\uff0cPMDA-NiPc@Si\u6d82\u5c42\u7684\u5b58\u5728\u4f7f\u5f97Si\u7eb3\u7c73\u9897\u7c92\u8868\u9762\u7c97\u7cd9\uff0c\u6613\u4e8e\u5f62\u6210\u7d27\u5bc6\u8fde\u7eed\u7684\u5bfc\u7535\u7f51\u7edc\uff0c\u805a\u96c6\u8f83\u5c0f\uff0c\u8fd9\u4e0ePMDA-NiPc@Si\u7684\u62bd\u4e1d\u5bc6\u5ea6\u663e\u8457\u589e\u52a0\u662f\u4e00\u81f4\u7684\u3002\u8fd9\u4e0e\u539f\u6765\u5355\u72ec\u66b4\u9732\u7684Si\u7eb3\u7c73\u9897\u7c92\u5206\u6563\u6709\u5f88\u5927\u7684\u4e0d\u540c\uff0c\u6709\u5229\u4e8e\u5f62\u6210\u4f18\u826f\u7684\u5bfc\u7535\u4f53\u7cfb\uff0c\u6700\u7ec8\u4fc3\u8fdb\u4e86\u7535\u5316\u5b66\u6027\u80fd\u7684\u589e\u5f3a\u3002PMDA-NiPc@Si\u7684\u5143\u7d20\u6620\u5c04\u56fe\u50cf\u663e\u793aPMDA-NiPc\u5728\u7eb3\u7c73Si\u8868\u9762\u5206\u5e03\u5747\u5300\uff0c\u6ca1\u6709\u660e\u663e\u7684\u51dd\u805a\u5bcc\u96c6\u3002HRTEM\u56fe\u50cf\u663e\u793a\uff0cSi\u7eb3\u7c73\u9897\u7c92\u8fb9\u7f18\u6e05\u6670\u4e14\u672a\u88ab\u5305\u8986\u3002\u76f8\u53cd\uff0cPMDA-NiPc@Si\u9897\u7c92\u8fb9\u7f18\u53ef\u4ee5\u6e05\u6670\u5730\u770b\u5230\u5747\u5300\u7684\u5305\u8986\u5c42\uff0c\u539a\u5ea6\u7ea6\u4e3a7 nm\u3002\u5b83\u8fd8\u53d1\u73b0\u5728\u805a\u96c6\u7684\u7eb3\u7c73Si\u7c07\u5916\u56f4\u7684\u5916\u7f18\u4e0a\u6709\u4e00\u5c42\u5747\u5300\u7684\u6d82\u5c42\u3002\u653e\u5927\u540e\u53d1\u73b0\uff0c\u6d82\u5c42\u754c\u9762\u4e3a\u8fdc\u8ddd\u79bb\u65e0\u5e8f\u548c\u77ed\u7a0b\u6709\u5e8f\u7684\u5206\u5b50\u6392\u5217\uff0c\u6ca1\u6709\u660e\u663e\u7684\u6676\u683c\u6761\u7eb9\uff0c\u8fd9\u4e0ePMDA-NiPc\u7684XRD\u56fe\u8c31\u4e2d(100)\u548c(001)\u9762\u7684\u7ed3\u6784\u7279\u5f81\u4e00\u81f4\u3002\u5229\u7528\u539f\u5b50\u529b\u663e\u5fae\u955c\u5206\u6790\u4e86\u7eb3\u7c73Si\u548cPMDA-NiPc@Si\u7c89\u672b\u7684\u8868\u9762\u7279\u5f81\u548c\u529b\u5b66\u6027\u80fd\u3002PMDA-NiPc\u7684\u539f\u4f4d\u805a\u5408\u5bb9\u6613\u5f62\u6210\u4e8c\u6b21Si NPs\uff0c\u56e0\u6b64\u76f8\u5bf9\u4e8e\u7eb3\u7c73Si\uff0c PMDA-NiPc@Si\u7684\u8868\u9762\u5448\u73b0\u51fa\u66f4\u5927\u7684\u6ce2\u52a8\uff0c\u76f8\u5e94\u7684\u539a\u5ea6\u5206\u5e03\u5177\u6709\u66f4\u660e\u663e\u7684\u6ce2\u52a8\u3002PMDA-NiPc@Si\u9897\u7c92\u7684\u8868\u9762\u7c97\u7cd9\u5ea6(Rp = 46.8, Ra = 36.3)\u662f\u7eb3\u7c73Si (Rp = 22.7, Ra = 18.0)\u7684\u4e24\u500d\u4ee5\u4e0a\uff0c\u6709\u5229\u4e8e\u5f62\u6210\u7d27\u5bc6\u8fde\u7eed\u7684\u5bfc\u7535\u7f51\u7edc\u3002\u540c\u65f6\uff0c\u8868\u9762\u6a21\u91cf\u7684\u589e\u52a0\u8868\u660e\uff0c\u5177\u6709\u56db\u8fb9\u5f62\u7ed3\u6784\u7684COF\u5c42\u662f\u4e00\u79cd\u5177\u6709\u9ad8\u673a\u68b0\u9c81\u68d2\u6027\u7684\u8d85\u5f3a\u5c42\u3002\u7efc\u4e0a\u6240\u8ff0\uff0c\u5728Si NPs\u8868\u9762\u6210\u529f\u6784\u5efa\u4e86\u5206\u5e03\u5747\u5300\u7684\u8d85\u5f3aCOF\u6d82\u5c42\uff0c\u4e3a\u5b9e\u73b0\u9ad8\u9502\u5b58\u50a8\u6027\u80fd\u63d0\u4f9b\u4e86\u4e0d\u53ef\u6216\u7f3a\u7684\u524d\u63d0\u3002<\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>1.<\/strong> Si\u3001PMDA-NiPc\u548cPMDA-NiPc@Si\u7684\u5408\u6210\u65b9\u6848\u4e0e\u7ed3\u6784\u8868\u5f81\u3002<\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>2.<\/strong> \u7eb3\u7c73Si\u3001PMDA-NiPc\u3001PMDA-NiPc@Si\u7684\uff1a(a) XPS\u5143\u7d20\u603b\u8c31\uff1b(b) XPS C 1s\u5149\u8c31\uff1b(c) XPS N 1s\u5149\u8c31\u3002<\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>3<\/strong>. (a, d)PMDA-NiPc@Si\u7684SEM\u56fe\u50cf\u3002(b, c, e, f)PMDA-NiPc@Si\u7684TEM\u56fe\u50cf\u3002(g-k)PMDA-NiPc@Si\u7684Mapping\u56fe\u3002(l, m)\u539f\u59cbSi\u7c89(l, n) PMDA-NiPc@Si\u7c89\u7684AFM\u56fe\u50cf\u548c(n, o)\u4e09\u7ef4\u56fe\u3002<\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>4.<\/strong> (a) Si\u3001PMDA-NiPc\u3001PMDA-NiPc@Si\u548cPMDA-NiPc@Si-Li(PMDA-NiPc@Si\u9884\u9502\u5316)\u521d\u59cb\u5faa\u73af\u7684\u653e\u7535\u548c\u5145\u7535\u66f2\u7ebf\u3002(b) Si\u548cPMDA-NiPc@Si\u7684\u7b2c\u4e00\u6b21\u5faa\u73afCV\u66f2\u7ebf\u3002(c) Si\u3001PMDA-NiPc\u548cPMDA-NiPc@Si\u7684\u500d\u7387\u6027\u80fd\u3002Si, PMDA-NiPc, PMDA-NiPc@Si\u5728100 mA g-1<\/sup> (d)\u3001 2 A g-1<\/sup> (e)\u548c5 A g-1 <\/sup>(f)\u4e0b\u7684\u5faa\u73af\u6027\u80fd\u3002(g)\u4e0e\u5176\u4ed6\u5178\u578b\u7684\u9502\u79bb\u5b50\u7535\u6c60\u7845\u8d1f\u6781\u6750\u6599\u7684\u7535\u5316\u5b66\u6027\u80fd\u6bd4\u8f83\u3002<\/p>\n

Si\u3001PMDA-NiPc\u548cPMDA-NiPc@Si\u7535\u6781\u5728100 mA g-1<\/sup>\u4e0b\u7684\u521d\u59cb\u5145\u653e\u7535\u66f2\u7ebf\u5982\u56fe4a\u6240\u793a\u3002PMDA-NiPc@Si\u4e0ePMDA-NiPc\u76f8\u6bd4\uff0cICE\u6027\u80fd\u63d0\u9ad8\u4e8668.7%\u3002\u4e3a\u4e86\u8fdb\u4e00\u6b65\u63d0\u9ad8Si\u8d1f\u6781\u7684ICE\uff0c\u5c06PMDA-NiPc@Si\u6d78\u5728LiOAc\u6eb6\u6db2\u4e2d\u9884\u9502\u5316\u5f97\u5230PMDA-NiPc@Si-Li\uff0c\u83b7\u5f97\u4e86\u4ee4\u4eba\u5370\u8c61\u6df1\u523b\u7684ICE\uff0878.4%\uff09\u3002\u4e0e\u7845\u7535\u6781\u76f8\u6bd4\uff0cPMDA-NiPc@Si\u57280.7 V\u5904\u7684\u53e6\u4e00\u4e2a\u8fd8\u539f\u5cf0\u5728\u7b2c\u4e00\u6b21\u9502\u5316\u8fc7\u7a0b\u4e2d\u88ab\u663e\u8457\u6291\u5236\uff0c\u8fd9\u8868\u660ePMDA\u7535\u6781\u5728\u7b2c\u4e00\u6b21\u9502\u5316\u8fc7\u7a0b\u4e2d\u4ea7\u751f\u7684SEI\u819c\u8f83\u5c11\u3002\u56e0\u6b64\uff0c\u7845\u8d1f\u6781\u8868\u9762\u7684PMDA-NiPc@Si\u6d82\u5c42\u5c06\u51cf\u5c11\u7535\u6781\u5faa\u73af\u8fc7\u7a0b\u4e2dSEI\u819c\u7684\u5f62\u6210\u3002\u56fe4c\u663e\u793a\u4e86PMDA-NiPc@Si\u7535\u6781\u57285A g-1<\/sup>\u7684\u9ad8\u7535\u6d41\u5bc6\u5ea6\u4e0b\u4fdd\u6301784 mAh g-1\u7684\u9ad8\u53ef\u9006\u5bb9\u91cf\u3002\u6b64\u5916\uff0c\u5f53\u7535\u6d41\u5bc6\u5ea6\u6062\u590d\u5230100 mA g-1<\/sup>\u65f6\u5bb9\u91cf\u53ef\u6062\u590d\u52301626 mAh g-1<\/sup>\uff0c\u8868\u73b0\u51fa\u4f18\u5f02\u7684\u7535\u5316\u5b66\u53ef\u9006\u6027(~100%)\u3002\u500d\u7387\u6027\u80fd\u7684\u663e\u8457\u63d0\u9ad8\u8868\u660ePMDA-NiPc\u6d82\u5c42\u5728Si NPs\u8868\u9762\u5f62\u6210\u4e86Li+<\/sup>\u4f20\u8f93\u7684\u4e13\u7528\u901a\u9053\uff0c\u6709\u5229\u4e8eLi+<\/sup>\u7684\u5feb\u901f\u8131\u5d4c\u3002\u5982\u56fe4d\u6240\u793a\u3002PMDA-NiPc@Si\u7684\u6bd4\u5bb9\u91cf\u548c\u5faa\u73af\u6027\u80fd\u4f18\u4e8e\u7eb3\u7c73Si, 100\u6b21\u5faa\u73af\u540e\u7684\u5bb9\u91cf\u4fdd\u7559\u7387\u4e3a93.8%\uff0c\u662f\u7eb3\u7c73Si\u76842.7\u500d\uff0c\u8fdb\u4e00\u6b65\u8bc1\u660e\u4e86PMDA-NiPc@Si\u590d\u5408\u6750\u6599\u7684\u8010\u4e45\u6027\u589e\u5f3a\u3002\u6b64\u5916\uff0c\u5728100\u6b21\u5faa\u73af\u540e\uff0c\u5b83\u4fdd\u6301\u4e861538 mAh g-1<\/sup>\u7684\u8d85\u9ad8\u6bd4\u5bb9\u91cf\uff0c\u662fPMDA-NiPc (611 mAh g-1<\/sup>)\u76842.5\u500d\uff0c\u8868\u660e\u5728\u5171\u4ef7\u6709\u673a\u6846\u67b6\u4e2d\u5f15\u5165\u7eb3\u7c73Si\u662f\u8bbe\u8ba1\u9ad8\u5bb9\u91cf\u6709\u673a\u7535\u6781\u6750\u6599\u7684\u6709\u6548\u7b56\u7565\u3002\u957f\u5bff\u547d\u5faa\u73af\u7a33\u5b9a\u6027\u662f\u9a8c\u8bc1\u7535\u6781\u6750\u6599\u5b9e\u7528\u6027\u7684\u5173\u952e\u6307\u6807\uff0c\u5927\u7535\u6d41\u5bc6\u5ea6\u4e0b\u7684\u957f\u5468\u671f\u6d4b\u8bd5\u5982\u56fe4f\u6240\u793a\u3002\u57285 A g-1<\/sup>\u6761\u4ef6\u4e0b\uff0cCOF\u7684\u521d\u59cb\u5bb9\u91cf\u8fbe\u5230785 mAh g-1<\/sup>\uff0c\u7ecf\u8fc72000\u6b21\u957f\u5faa\u73af\u540e\uff0c\u5176\u5bb9\u91cf\u4ecd\u4fdd\u6301\u5728\u539f\u6765\u768480.4% (654 mAh g-1<\/sup>)\uff0c\u8868\u660e\u5177\u6709\u56db\u65b9\u7ed3\u6784\u7684COF\u6bd4\u5176\u4ed6COF\u5177\u6709\u66f4\u9ad8\u7684\u7a33\u5b9a\u6027\uff0c\u6709\u52a9\u4e8e\u63d0\u9ad8\u7535\u6781\u7684\u5faa\u73af\u5bff\u547d\u3002\u4e3a\u4e86\u8bc1\u5b9eCOF\u4f5c\u4e3a\u7eb3\u7c73\u7845\u9633\u6781\u6d82\u5c42\u7684\u4f18\u8d8a\u6027\uff0c\u56fe4g\u663e\u793a\u4e86PMDA-NiPc@Si\u7684\u7535\u5316\u5b66\u6027\u80fd\u4e0e\u5176\u4ed6\u7845\u8d1f\u6781\u76f8\u6bd4\uff0c\u5728\u6bd4\u5bb9\u91cf\u3001\u5faa\u73af\u5bff\u547d\u548c\u5faa\u73af\u6b21\u6570\u65b9\u9762\u90fd\u6709\u5f88\u5927\u7684\u4f18\u52bf\u3002PMDA-NiPc@Si\u4e0e\u5e02\u552e\u7684NCM-811\u7ec4\u88c5\u6210PMDA-NiPc@Si\/NCM-811\u5168\u7535\u6c60\uff0c\u4ee5\u8fdb\u4e00\u6b65\u9a8c\u8bc1\u5176\u5b9e\u9645\u5e94\u7528\u7684\u53ef\u80fd\u6027\u3002\u5728\u4f4e\u538b\u5230\u9ad8\u538b\u8303\u56f4\u5185\uff0cCV\u66f2\u7ebf\u6709\u4e09\u5bf9\u91cd\u590d\u826f\u597d\u7684\u6c27\u5316\u8fd8\u539f\u5cf0\uff0c\u4ee3\u8868\u4e86\u4ece\u516d\u8fb9\u5f62\u5230\u5355\u6676\uff0c\u518d\u5230\u516d\u8fb9\u5f62\uff0c\u6700\u540e\u5230\u53e6\u4e00\u4e2a\u516d\u8fb9\u5f62\u6676\u4f53\u4f53\u7cfb\u7684\u591a\u6b21\u76f8\u53d8\uff0c\u8868\u660ePMDA-NiPc@Si\u5177\u6709\u4f18\u5f02\u7684\u9502\u8131\u5d4c\u80fd\u529b\u548c\u6ee1\u7535\u6c60\u5faa\u73af\u7a33\u5b9a\u6027(\u56fe5a)\u3002\u4e0e\u521d\u59cb\u6bd4\u5bb9\u91cf\u76f8\u6bd4\uff0c\u4ece\u9ad8\u7535\u6d41\u5bc6\u5ea6\u964d\u81f30.1 C\u540e\uff0c\u6bd4\u5bb9\u91cf\u4ece10 C\u65f6\u768433.4%\u6062\u590d\u523093.4%\uff0c\u5982\u56fe5b\u6240\u793a\uff0c\u8868\u660ePMDA-NiPc\u6d82\u5c42\u5bf9Si\u8d1f\u6781\u7a33\u5b9a\u6027\u6709\u663e\u8457\u5f71\u54cd\u3002<\/p>\n

\u4e3a\u4e86\u8fdb\u4e00\u6b65\u63ed\u793aPMDA-NiPc@Si\u9ad8\u500d\u7387\u6027\u80fd\u548c\u5353\u8d8a\u5faa\u73af\u7a33\u5b9a\u6027\u7684\u539f\u56e0\uff0c\u91c7\u7528GITT\u7814\u7a76\u4e86\u7eb3\u7c73Si\u548cPMDA-NiPc@Si\u7535\u6781\u5728100\u6b21\u5faa\u73af\u540e\u7684\u9502\u79bb\u5b50\u6269\u6563\u7cfb\u6570\u3002\u6b64\u5916\uff0c\u7535\u5316\u5b66\u6d3b\u6027\u8868\u9762\u79ef(ECSA)\u6d4b\u8bd5\u7ed3\u679c\u8868\u660ePMDA-NiPc@Si\u5177\u6709\u66f4\u5927\u7684ECSA\uff0c\u8fd9\u6709\u529b\u5730\u8bc1\u660e\u4e86PMDA-NiPc@Si\u7535\u6781\u5177\u6709\u66f4\u5feb\u7684\u7535\u5316\u5b66\u53cd\u5e94\u901f\u7387(\u56fe5h)\u3002\u5982\u56fe5g\u6240\u793a\uff0cPMDA-NiPc@Si\u7535\u6781\u7684DLi+<\/sub>\u5728\u6574\u4e2a\u8131\u9502\u8fc7\u7a0b\u4e2d\u90fd\u9ad8\u4e8e\u7eb3\u7c73Si\u7535\u6781\uff0c\u8868\u660ePMDA-NiPc\u6d82\u5c42\u6709\u52a9\u4e8e\u6539\u5584\u9502\u79bb\u5b50\u4f20\u8f93\u52a8\u529b\u5b66\u3002PMDA-NiPc\u5c42\u7684\u52a0\u901f\u754c\u9762\u52a8\u529b\u5b66\u53ef\u4ee5\u901a\u8fc7\u6781\u5316\u540eLi+<\/sup>\u8131\u5d4c\u5230\u6d3b\u6027\u6750\u6599\u4e2d\u7684\u4ea4\u6362\u7535\u6d41\u5bc6\u5ea6(j0<\/sub>)\u8fdb\u4e00\u6b65\u8bc1\u5b9e\uff0c\u53ef\u4ee5\u901a\u8fc7Si\u548cPMDA-NiPc@Si\u7684Tafel\u66f2\u7ebf\u8ba1\u7b97\u5f97\u5230(\u56fe5i)\u3002\u4e0e\u672a\u6d82\u8986COF\u7684\u7eb3\u7c73Si\u76f8\u6bd4\uff0cPMDA-NiPc@Si\u5bf9\u5e94\u7684\u7535\u6c60j0<\/sub>\u66f4\u5927\uff0c\u8fd9\u610f\u5473\u7740COF\u6d82\u5c42\u7684\u5f15\u5165\u4fc3\u8fdb\u4e86\u7535\u8377\u8f6c\u79fb\u548cLi+<\/sup>\u6269\u6563\u8fc7\u7a0b\uff0c\u4ece\u800c\u589e\u5f3a\u4e86\u5d4c\u5165\u7684Li\u8131\u5d4c\u52a8\u529b\u5b66\uff0c\u4e0e\u4e0a\u8ff0\u7ed3\u679c\u76f8\u5bf9\u5e94\u3002<\/p>\n

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\"\"<\/p>\n

\u56fe<\/strong>5.<\/strong> PMDA-NiPc@Si\/NCM-811\u7535\u6c60\u7684CV\u66f2\u7ebf(a)\u3001\u500d\u7387\u6027\u80fd(b)\u3001\u5145\u653e\u7535\u66f2\u7ebf(c)\u548c\u5faa\u73af\u6027\u80fd(d)\u3002Si\u3001PMDA-NiPc\u548cPMDA-NiPc@Si\u7684Nyquist\u56fe(e)\u548cZ\u2032\u4e0e\u03c9-1\/2<\/sup>\u5bf9\u5e94\u7684\u7ebf\u6027\u62df\u5408\u66f2\u7ebf(f)\u3002(g) GITT\u7535\u4f4d\u968fSi\u548cPMDA-NiPc@Si\u65f6\u95f4\u7684\u54cd\u5e94\u66f2\u7ebf\uff0c\u4ee5\u53ca\u7528GITT\u65b9\u6cd5\u8ba1\u7b97\u7684\u9502\u79bb\u5b50\u6269\u6563\u7387\u968f\u7535\u4f4d\u7684\u53d8\u5316\u66f2\u7ebf\u3002(h) Cdl\u503c\u4f5c\u4e3aSi\u548cPMDA-NiPc@Si\u626b\u63cf\u901f\u7387\u7684\u51fd\u6570\u3002(i) Si||Li\u548cPMDA-NiPc@Si| Li\u7535\u6c60\u7684Tafel\u56fe\u3002<\/p>\n

\"\"<\/p>\n

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