{"id":173447,"date":"2019-04-25T11:29:29","date_gmt":"2019-04-25T03:29:29","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=173447"},"modified":"2019-04-24T22:29:44","modified_gmt":"2019-04-24T14:29:44","slug":"%e5%a4%a7%e8%bf%9e%e7%90%86%e5%b7%a5%e5%a4%a7%e5%ad%a6acs-nano-%e7%94%a8%e4%ba%8eli-s%e7%94%b5%e6%b1%a0%e7%9a%84%e5%8f%af%e6%94%be%e5%a4%a7%e5%88%b6%e5%a4%87%e7%9a%84%e8%87%aa%e6%94%af%e6%92%91c-sio2","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=173447","title":{"rendered":"\u5927\u8fde\u7406\u5de5\u5927\u5b66ACS Nano: \u7528\u4e8eLi-S\u7535\u6c60\u7684\u53ef\u653e\u5927\u5236\u5907\u7684\u81ea\u652f\u6491C\/SiO2\u590d\u5408\u819c\u6b63\u6781"},"content":{"rendered":"

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

\u9502\u786b\u7535\u6c60\u7684\u5b9e\u9645\u5e94\u7528\u9762\u4e34\u7740\u8bb8\u591a\u6311\u6218\u3002\u9996\u5148\uff0c\u786b\u53ca\u5176\u653e\u7535\u4ea7\u7269(Li2<\/sub>S\/Li2<\/sub>S2<\/sub>)\u7684\u5bfc\u7535\u6027\u5dee\u5bfc\u81f4\u6d3b\u6027\u6750\u6599\u7684\u5229\u7528\u7387\u4f4e\u548c\u7535\u5316\u5b66\u53cd\u5e94\u90e8\u5206\u4e0d\u53ef\u9006\u3002\u5728\u5145\u653e\u7535\u8fc7\u7a0b\u4e2d\u786b\u7684\u4f53\u79ef\u81a8\u80c0\u6548\u5e94(~80\uff05)\u5bfc\u81f4\u786b\u4ece\u4e3b\u4f53\u6750\u6599\u4e2d\u5206\u79bb\u548c\u7535\u6781\u7c89\u788e\u3002\u6b64\u5916\uff0c\u4f5c\u4e3a\u6c27\u5316\u8fd8\u539f\u4e2d\u95f4\u4f53\u5f62\u6210\u7684\u53ef\u6eb6\u6027\u591a\u786b\u5316\u7269\uff08Li2<\/sub>Sx<\/sub>\uff0c4 <x\u22648\uff09\u7684\u201c\u7a7f\u68ad\u6548\u5e94\u201d\u73b0\u8c61\u4f7f\u5f97\u5e93\u4ed1\u6548\u7387\u4f4e\u5e76\u4e14\u8150\u8680\u9502\u91d1\u5c5e\u8d1f\u6781\uff0c\u4ece\u800c\u5bfc\u81f4\u5feb\u901f\u7684\u5bb9\u91cf\u8870\u51cf\u3002\u7814\u7a76\u8005\u4eec\u9488\u5bf9\u4ee5\u4e0a\u95ee\u9898\uff0c\u5f00\u53d1\u4e86\u8bb8\u591a\u5148\u8fdb\u7684\u7b56\u7565\u3002\u4f8b\u5982\u8bbe\u8ba1\u5404\u79cd\u8f7d\u786b\u6750\u6599\u3001\u4fee\u9970\u4e2d\u95f4\u5c42\u548c\u6539\u8fdb\u7535\u89e3\u6db2\u7b49\u3002\u5728\u6700\u8fd1\u7684\u7814\u7a76\u4e2d\uff0c\u78b3\u590d\u5408\u819c\u7531\u4e8e\u5176\u53ef\u8c03\u8282\u7684\u591a\u5b54\u9aa8\u67b6\u548c\u5316\u5b66\u7a33\u5b9a\u6027\u800c\u88ab\u5f00\u53d1\u4e3a\u8f7d\u786b\u7535\u6781\u6750\u6599\u3002\u8fd9\u79cd\u8bbe\u8ba1\u4e0d\u4ec5\u5177\u6709\u4e92\u8fde\u7684\u5bfc\u7535\u7f51\u7edc\u800c\u4e14\u8fd8\u8d77\u5230\u7c98\u5408\u5242\u6216\u91d1\u5c5e\u96c6\u6d41\u4f53\u7684\u4f5c\u7528\u3002\u7136\u800c\uff0c\u8fd9\u4e9b\u78b3\u7ea4\u7ef4\u6216\u78b3\u7eb3\u7c73\u7ba1\uff08CNT\uff09\u57fa\u7535\u6781\u6750\u6599\u7f3a\u4e4f\u7cbe\u7ec6\u53ef\u8c03\u7684\u591a\u5b54\u7ed3\u6784\uff0c\u5b54\u9699\u5bf9\u4e8e\u7535\u89e3\u6db2\u7684\u6e17\u900f\u548c\u7684\u9ad8\u786b\u8f7d\u91cf\u662f\u5341\u5206\u91cd\u8981\u7684\u3002\u800c\u4e14\uff0c\u8fd9\u4e9b\u96c6\u6d41\u4f53\u901a\u5e38\u5236\u5907\u8fc7\u7a0b\u590d\u6742\u4e14\u96be\u4ee5\u653e\u5927\uff0c\u56e0\u6b64\u96be\u4ee5\u5b9e\u73b0\u5e7f\u6cdb\u4f7f\u7528\u3002\u56e0\u6b64\uff0c\u4f7f\u7528\u5408\u7406\u4e14\u53ef\u653e\u5927\u751f\u4ea7\u7684\u6b63\u6781\u8bbe\u8ba1\u5bf9\u4e8e\u5b9e\u73b0\u5177\u6709\u9ad8\u80fd\u91cf\u5bc6\u5ea6\u7684Li-S\u7535\u6c60\u7684\u5b9e\u9645\u5e94\u7528\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002<\/p>\n

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

\u8fd1\u65e5\uff0c\u5927\u8fde\u7406\u5de5\u5927\u5b66\u6559\u80b2\u90e8\u957f\u6c5f\u5b66\u8005\u56e2\u961f\u8d3a\u9ad8\u7ea2\u6559\u6388\u3001\u674e\u7965\u6751\u526f\u6559\u6388<\/b><\/strong>\u3001\u8054\u5408\u7f8e\u56fd\u5fb7\u514b\u8428\u65af\u5927\u5b66\u5965\u65af\u6c40\u5206\u6821\u4f59\u6842\u534e\u6559\u6388\uff08\u5171\u540c\u901a\u8baf\u4f5c\u8005\uff09<\/b><\/strong>\u62a5\u9053\u4e86\u4e00\u79cd\u901a\u8fc7\u7b80\u4fbf\u7684\u76f8\u8f6c\u5316\u65b9\u6cd5\u5408\u6210\u7684\u5177\u6709\u53ef\u653e\u5927\u5236\u5907\u4e14\u67d4\u6027\u7684\u4e09\u5c42\u7ed3\u6784\u591aC\/SiO2<\/sub>\u819c\u3002\u4f5c\u4e3a\u4e00\u79cd\u591a\u529f\u80fd\u4e14\u65e0\u91d1\u5c5e\u96c6\u6d41\u4f53\u7684\u6b63\u6781\uff0cC\/SiO2<\/sub>\u819c\u7684\u5206\u7ea7\u5927\u5b54\u53ef\u4ee5\u4f5c\u4e3a\u7406\u60f3\u7684\u786b\u8f7d\u4f53\uff0c\u4ee5\u51cf\u8f7b\u786b\u7684\u4f53\u79ef\u81a8\u80c0\u6548\u5e94\u3002\u6b64\u5916\uff0c\u4e92\u8fde\u7684\u5bfc\u7535\u7f51\u7edc\u53ef\u4ee5\u52a0\u5feb\u7535\u5b50\u4f20\u8f93\uff0c\u63d0\u9ad8\u53cd\u5e94\u52a8\u529b\u5b66\u3002\u6b64\u5916\uff0c\u5d4c\u5165\u7684\u6781\u6027\u7eb3\u7c73SiO2<\/sub>\u9897\u7c92\u5bf9LiPS\u5177\u6709\u5f88\u5f3a\u7684\u5316\u5b66\u5438\u9644\u80fd\u529b\uff0c\u6709\u6548\u5730\u6d88\u9664\u4e86\u7a7f\u68ad\u6548\u5e94\u3002C\/SiO2<\/sub>\u819c\u57fa\u6b63\u6781\u4e2d\u7684\u9762\u79ef\u786b\u542b\u91cf\u53ef\u9ad8\u8fbe2.8mg cm-2<\/sup>\uff0c\u6700\u5927\u9762\u79ef\u5bb9\u91cf\u4e3a\u7ea61.6mAh cm-2<\/sup>\u3002\u76f8\u5173\u7814\u7a76\u6210\u679c\u201cTriple-Layered Carbon-SiO<\/b><\/strong>2<\/b><\/sub><\/strong>\u00a0Composite Membrane for High Energy Density and Long Cycling Li-S Batteries<\/b><\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728ACS Nano<\/b><\/strong>\u4e0a\u3002<\/p>\n

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

\u56fe\u4e00C\/<\/b><\/strong>SiO<\/b><\/strong>2<\/b><\/sub><\/strong>\u819c\u7535\u6781\u7684\u5236\u5907\u8fc7\u7a0b\u4ee5\u53ca\u76f8\u5e94\u7684\u5f62\u8c8c\u8868\u5f81<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09\u4e0d\u5bf9\u79f0\u591a\u5b54PAN\u548cPAN\/SiO2<\/sub>\u819c\u7684\u4e09\u5143\u76f8\u56fe\u53ca\u5176\u78b3\u5316\u6210C\u548cC\/SiO2<\/sub>\u6b63\u6781<\/p>\n

\uff08b\uff09DMF\u4e0e\u975e\u6eb6\u5242\uff08\u53bb\u79bb\u5b50\u6c34\uff09\u4e4b\u95f4\u7684\u6eb6\u5242\u4ea4\u6362\uff0c\u7528\u4e8e\u819c\u56fa\u5316\u548c\u5b54\u5f62\u6210<\/p>\n

\uff08c\uff0cd\uff09PAN\/SiO2<\/sub>\u819c\u53ca\u5176\u78b3\u5316\u6210C\/SiO2<\/sub>\u67d4\u6027\u7535\u6781\u7684\u5149\u5b66\u7167\u7247<\/p>\n

\uff08e\uff09C\/SiO2<\/sub>\u590d\u5408\u7269\u7684\u6a2a\u622a\u9762SEM\u56fe\u50cf<\/p>\n

\uff08h\uff09S\u6c89\u79ef\u5728C\/SiO2<\/sub>\u819c\u5b54\u4e2d\u7684SEM\u56fe\u50cf<\/p>\n

\uff08i-m\uff09\u76f8\u5e94\u7684\u5143\u7d20\u6620\u5c04\u56fe\u50cf\u8868\u9762S\u7684\u5747\u5300\u5206\u5e03<\/p>\n

\u56fe\u4e8c<\/b><\/strong>C\/SiO<\/b><\/strong>2<\/b><\/sub><\/strong>\u819c\u7684\u5149\u8c31\u8868\u5f81\u4ee5\u53ca\u4e0e\u591a\u786b\u5316\u7269\u7684\u76f8\u4e92\u4f5c\u7528<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09SiO2<\/sub>\u7eb3\u7c73\u9897\u7c92\uff0cC\u819c\uff0cC\/SiO2<\/sub>\u590d\u5408\u819c\u548c\u8d1f\u8f7dS\u7684C\/SiO2<\/sub>\u819c\u7684XRD\u56fe\u8c31<\/p>\n

\uff08b\uff09\u8d1f\u8f7d\u786b\u7684C\/SiO2<\/sub>\u819c\u6b63\u6781\u5728\u653e\u7535\u72b6\u6001\u4e0b\u7684S 2p\u5149\u8c31<\/p>\n

\uff08c\uff09N 1s\u5149\u8c31\u7684C\/SiO2<\/sub>\u548cS\u8d1f\u8f7d\u7684\u8d1f\u8f7d\u786b\u7684C\/SiO2<\/sub>\u819c<\/p>\n

\uff08d\uff09\u901a\u8fc7\u89c6\u89c9\u8fa8\u522bSiO2<\/sub>\u7eb3\u7c73\u9897\u7c92\u548cLiPS\u4e4b\u95f4\u7684\u5f3a\u76f8\u4e92\u4f5c\u7528<\/p>\n

\uff08e\uff09SiO2<\/sub>\u548cLiPS\u4e4b\u95f4\u76f8\u4e92\u4f5c\u7528\u7684\u7406\u8bbaDFT\u6a21\u62df\u8ba1\u7b97<\/p>\n

\u56fe\u4e09<\/b><\/strong>C\/SiO<\/b><\/strong>2<\/b><\/sub><\/strong>\u819c\u6b63\u6781\u7684\u7535\u5316\u5b66\u6027\u80fd\u8868\u5f81<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09Al\u7b94\uff0cC\u819c\u548cC\/SiO2<\/sub>\u819c\u7535\u6781\u7684CV\u66f2\u7ebf<\/p>\n

\uff08b\uff090.1 C\u65f6\u4e0d\u540c\u6b63\u6781\u6781\u7684\u5145\u653e\u7535\u66f2\u7ebf<\/p>\n

\uff08c\uff09\u4e0d\u540c\u6b63\u6781\u7684\u500d\u7387\u6027\u80fd<\/p>\n

\uff08d\uff0ce\uff09\u786b\u8f7d\u8377\u4e3a1.5\u548c2.8 mg cm-2<\/sup>\u65f6\u4e0d\u540c\u6b63\u6781\u7684\u5faa\u73af\u6027\u80fd;<\/p>\n

\uff08f\uff09\u4e0d\u540c\u9634\u6781\u7684\u9762\u79ef\u5bb9\u91cf;<\/p>\n

\uff08g\uff0ch\uff09\u7528\u4e24\u4e2a\u7ebd\u6263\u7535\u6c60\u70b9\u4eae\u84dd\u8272\u6216\u7eff\u8272\u53d1\u5149\u4e8c\u6781\u7ba1\u7684\u5149\u5b66\u7167\u7247\u3002<\/p>\n

\u56fe\u56db<\/b><\/strong>C\/SiO<\/b><\/strong>2<\/b><\/sub><\/strong>\u819c\u7684\u5faa\u73af\u7a33\u5b9a\u6027<\/b><\/strong><\/p>\n

\"\"<\/p>\n

\uff08a-c\uff09C\/SiO2<\/sub>\u819c\u6b63\u6781\u5373\u4f7f\u5728600\u6b21\u5faa\u73af\uff081C\uff09\u4e4b\u540e\uff0cS\u6d46\u6599\u6d82\u5c42\u4e5f\u5f88\u597d\u5730\u7c98\u9644\u5728\u819c\u8868\u9762\u4e0a\uff08d-i\uff09\u6a2a\u622a\u9762SEM\u56fe\u50cf\u548cEDX\u5143\u4ef6\u56fe\u663e\u793aS\u548c\u5176\u4ed6\u5143\u7d20\u5747\u5300\u5730\u5206\u6563\u5728\u6574\u4e2a\u819c\u4e2d<\/p>\n

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

\u603b\u4e4b\uff0c\u672c\u6587\u5f00\u53d1\u4e86\u4e00\u79cd\u5177\u6709\u4e09\u5c42\u7ed3\u6784\u591a\u5b54C\/SiO2<\/sub>\u819c\u3002\u819c\u4e2d\u7684\u5206\u7ea7\u5927\u5b54\u53ef\u4ee5\u5bb9\u7eb3\u5927\u90e8\u5206S\u7269\u8d28\u5e76\u4fc3\u8fdb\u79bb\u5b50\/\u7535\u89e3\u6db2\u7684\u4f20\u8f93\u4ee5\u5b9e\u73b0\u5feb\u901f\u53cd\u5e94\u52a8\u529b\u5b66\u3002\u6d77\u7ef5\u72b6\u591a\u5b54\u819c\u8868\u9762\u5141\u8bb8S\u6d46\u6599\u6d82\u5c42\u5c06S\u8d1f\u8f7d\u8d28\u91cf\u589e\u52a0\u81f32.8mg cm-2<\/sup>\uff0c\u6b63\u6781\u4e2d\u7684\u786b\u542b\u91cf\u4e3a~75\uff05\u3002\u81f4\u5bc6\u7684C\/SiO2<\/sub>\u819c\u5c42\u53ef\u4ee5\u4ee3\u66ffAl\u7b94\u5e76\u7528\u4f5c\u96c6\u6d41\u4f53\u3002DFT\u6a21\u62df\u548c\u89c6\u89c9\u5438\u9644\u6d4b\u91cf\u8bc1\u5b9e\u63ba\u6742\u7684SiO2<\/sub>\u7eb3\u7c73\u9897\u7c92\u5728\u901a\u8fc7\u5316\u5b66\u5438\u9644\u548c\u7535\u50ac\u5316\u6291\u5236\u591a\u786b\u5316\u7269\u7684\u7a7f\u68ad\u6548\u5e94\u4e2d\u8d77\u5173\u952e\u4f5c\u7528\u3002\u5177\u67092.8mg cm-2<\/sup>\u7684\u9ad8\u786b\u8f7d\u91cf\u7684\u5206\u5c42\u591a\u5b54C\/SiO2<\/sub>\u6b63\u6781\u57280.2C\u4e0b200\u6b21\u5faa\u73af\u540e\u4ecd\u80fd\u63d0\u4f9b~700 mA h g-1<\/sup>\u7684\u9ad8\u5bb9\u91cf\uff0c\u5e93\u4ed1\u6548\u7387\u4e3a~97\uff05\u3002\u57281C\u7684\u7535\u6d41\u5bc6\u5ea6\u5faa\u73af300\u6b21\u540e\uff0c\u9762\u79ef\u5bb9\u91cf\u4ecd\u63a5\u8fd11.6mAh cm-2<\/sup>\u3002\u7531\u4e8e\u5176\u5236\u5907\u5de5\u827a\u7b80\u5355\uff0c\u8fd9\u79cd\u53ef\u653e\u5927\u5236\u5907\u4e14\u67d4\u6027\u7684\u81ea\u652f\u6491\u6b63\u6781\u8bbe\u8ba1\u4e3a\u5b9e\u73b0\u9ad8\u80fd\u91cf\u5bc6\u5ea6Li-S\u7535\u6c60\u7684\u5b9e\u9645\u5e94\u7528\u63d0\u4f9b\u4e86\u6709\u524d\u666f\u7684\u7b56\u7565\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1a<\/b><\/strong>\u201c<\/b><\/strong>Triple-Layered Carbon-SiO2 Composite Membrane for High Energy Density and Long Cycling Li-S Batteries<\/b><\/u><\/strong><\/a>\u201d(ACS Nano, 201<\/b><\/strong>9<\/b><\/strong>,DOI: 0.1021\/acsnano.9b01703)<\/b><\/strong><\/p>\n

\u672c\u6587\u7531\u6750\u6599\u4eba\u5fae\u89c2\u4e16\u754c\u7f16\u8bd1\u4f9b\u7a3f\uff0c\u6750\u6599\u725b\u6574\u7406\u7f16\u8f91\u3002<\/p>\n

\u6b22\u8fce\u5927\u5bb6\u5230\u6750\u6599\u4eba\u5ba3\u4f20\u79d1\u6280\u6210\u679c\u5e76\u5bf9\u6587\u732e\u8fdb\u884c\u6df1\u5165\u89e3\u8bfb\uff0c\u6295\u7a3f\u90ae\u7bb1tougao@cailiaoren.com\u3002<\/p>\n

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