{"id":218601,"date":"2021-03-02T12:20:05","date_gmt":"2021-03-02T04:20:05","guid":{"rendered":"\/\/m.iemloyee.com\/?p=218601"},"modified":"2021-03-02T10:16:26","modified_gmt":"2021-03-02T02:16:26","slug":"%e5%8c%97%e7%90%86%e5%b7%a5ut-austin-nano-lett-%e9%80%9a%e8%bf%87%e5%a4%9a%e7%94%b5%e5%ad%90%e5%8f%8d%e5%ba%94%e6%8f%90%e9%ab%98%e9%92%a0%e7%a6%bb%e5%ad%90%e7%94%b5%e6%b1%a0%e7%9a%84%e8%83%bd","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=218601","title":{"rendered":"\u5317\u7406\u5de5&UT-Austin Nano Lett.: \u901a\u8fc7\u591a\u7535\u5b50\u53cd\u5e94\u63d0\u9ad8\u94a0\u79bb\u5b50\u7535\u6c60\u7684\u80fd\u91cf\u5bc6\u5ea6"},"content":{"rendered":"

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

\u94a0\u79bb\u5b50\u7535\u6c60\u7531\u4e8e\u94a0\u8d44\u6e90\u4e30\u5bcc\u3001\u6210\u672c\u4f4e\u5ec9\u53ca\u4e0e\u9502\u79bb\u5b50\u7535\u6c60\u76f8\u4f3c\u7684\u7535\u5316\u5b66\u53cd\u5e94\u673a\u7406\u7b49\u7279\u70b9\uff0c\u88ab\u8ba4\u4e3a\u662f\u9502\u79bb\u5b50\u7535\u6c60\u6700\u6709\u524d\u666f\u7684\u66ff\u4ee3\u54c1\u4e4b\u4e00\u3002\u7136\u800c\uff0c\u5f00\u53d1\u5177\u6709\u9ad8\u80fd\u91cf\u5bc6\u5ea6\u548c\u4f18\u5f02\u5faa\u73af\u6027\u94a0\u79bb\u5b50\u7535\u6781\u6750\u6599\u4ecd\u7136\u9762\u4e34\u7740\u8bb8\u591a\u6311\u6218\u3002\u7531\u4e8eNa\/Na+<\/sup>\u7684\u7535\u5316\u5b66\u7535\u52bf\u6bd4Li\/Li+<\/sup>\u9ad8\u7ea60.35 V\uff0c\u5bf9\u4e8e\u94a0\u79bb\u5b50\u7535\u6c60\u7684\u5b9e\u9645\u5e94\u7528\uff0c\u5f00\u53d1\u5177\u6709\u9ad8\u5de5\u4f5c\u7535\u4f4d\u548c\u80fd\u91cf\u5bc6\u5ea6\u7684\u6b63\u6781\u662f\u975e\u5e38\u5fc5\u8981\u7684\u3002\u94a0\u79bb\u5b50\u7535\u6c60\u6b63\u6781\u6750\u6599\u7684\u4e00\u4e2a\u91cd\u8981\u7c7b\u522b\u662f\u5177\u6709\u4e09\u7ef4\u7ed3\u6784\u548c\u7a33\u5b9a\u7684X-O\uff08X=B\uff0cS\uff0cP\u548cSi\uff09\u5171\u4ef7\u952e\u7684\u805a\u9634\u79bb\u5b50\u6c27\u5316\u7269\uff0c\u5176\u5728\u94a0\u79bb\u5b50\u5d4c\u5165\/\u8131\u51fa\u65f6\u5341\u5206\u7a33\u5b9a\u4e14\u4f53\u79ef\u53d8\u5316\u8f83\u5c0f\u3002\u6b64\u5916\uff0c\u4e0e\u5c42\u72b6\u6c27\u5316\u7269\u6b63\u6781\u6750\u6599\u76f8\u6bd4\uff0c\u805a\u9634\u79bb\u5b50\u57fa\u56e2\u53ef\u4ee5\u8fdb\u4e00\u6b65\u63d0\u9ad8\u8fc7\u6e21\u91d1\u5c5e\u79bb\u5b50\u7684\u7535\u5316\u5b66\u7535\u52bf\u3002\u5728\u805a\u9634\u79bb\u5b50\u5316\u5408\u7269\u4e2d\uff0c\u94a0\u8d85\u79bb\u5b50\u5bfc\u4f53\uff08NASICON\uff09\u7279\u522b\u53d7\u5173\u6ce8\uff0c\u5176\u5177\u6709\u8f83\u597d\u7684\u94a0\u79bb\u5b50\u8fc1\u79fb\u7387\u826f\u597d\u548c\u7a33\u5b9a\u7684\u4e09\u7ef4\u9aa8\u67b6\u7ed3\u6784\u3002Na3<\/sub>V2<\/sub>(PO4<\/sub>)3<\/sub>\u4f5c\u4e3a\u5178\u578b\u7684NASICON\u7ed3\u6784\u6b63\u6781\uff0c\u6bd4\u7535\u5bb9\u91cf\u4e3a117 mA h g-1<\/sup>\uff0c\u7535\u5316\u5b66\u53cd\u5e94\u7535\u4f4d\u57283.5 V\u5de6\u53f3\u3002\u7528Mn2+<\/sup>\uff0cAl3+<\/sup>\u548cCr3+<\/sup>\u90e8\u5206\u53d6\u4ee3V3+<\/sup>\u53ef\u4ee5\u6fc0\u53d1Na3<\/sub>V2<\/sub>(PO4<\/sub>)3<\/sub>\u6b63\u6781\u4e2dV4+<\/sup>\/5+<\/sup>\u7684\u6c27\u5316\u8fd8\u539f\u53cd\u5e94(\u301c4.0 V)\u3002<\/p>\n

\u00a0<\/strong>\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n

\u8fd1\u65e5\uff0c\u5317\u4eac\u7406\u5de5\u5927\u5b66\u8d75\u6c38\u6770\u526f\u6559\u6388\u3001\u5f97\u5dde\u5927\u5b66\u5965\u65af\u6c40\u5206\u6821<\/strong>Xiangwen Gao (<\/strong>\u5171\u540c\u901a\u8baf\u4f5c\u8005<\/strong>)<\/strong>\u7b49\u4eba\u5408\u6210\u4e86\u4e00\u79cd\u805a\u9634\u79bb\u5b50\u6c27\u5316\u7269Na4<\/sub>MnCr(PO4<\/sub>)3<\/sub>\uff0c\u5e76\u5c06\u5176\u4f5c\u4e3a\u94a0\u79bb\u5b50\u7684\u6b63\u6781\u6750\u6599\u3002\u6709\u8da3\u7684\u662f\uff0cNa4<\/sub>MnCr(PO4<\/sub>)3<\/sub>\u76f8\u5bf9\u4e8eNa\/Na+<\/sup>\u57283.7V\uff0c4.2V\u548c4.5V\u4e0b\u8868\u73b0\u51fa\u4e09\u6b65\u6c27\u5316\u8fd8\u539f\u53cd\u5e94\uff0c\u5206\u522b\u5bf9\u5e94\u4e8eMn2+<\/sup>\/Mn3+<\/sup>\uff0cMn3+<\/sup>\/ Mn4+<\/sup>\u548cCr3+<\/sup>\/Cr4+<\/sup>\u7684\u6c27\u5316\u8fd8\u539f\u7535\u5bf9\uff0c\u5176\u9996\u6b21\u653e\u7535\u5bb9\u91cf\u4e3a165 mAh g-1<\/sup>\u3002\u5f00\u653e\u800c\u7a33\u5b9a\u7684NASICON\u7ed3\u6784\u53ef\u786e\u4fdd\u51fa\u8272\u7684\u5faa\u73af\u7a33\u5b9a\u6027\uff0c\u5728100 mA g-1<\/sup>\u7684\u7535\u6d41\u5bc6\u5ea6\u548c2.5-4.3 V\u7684\u7535\u538b\u7a97\u53e3\u4e0b\u7ecf\u8fc7500\u6b21\u5faa\u73af\u540e\uff0c\u5bb9\u91cf\u4fdd\u6301\u7387\u4e3a85\uff05\uff0c\u57282.5-4.6 V\u7684\u7535\u538b\u7a97\u53e3\u4e0b\uff0c\u5bb9\u91cf\u4fdd\u6301\u7387\u4e3a73.3\uff05\u3002\u9ad8\u7535\u538b\u4e0b\u7684\u5bb9\u91cf\u8870\u51cf\u662f\u7535\u89e3\u6db2\u5206\u89e3\u5f62\u6210\u6b63\u6781\u7535\u89e3\u8d28\u5bfc\u81f4\u7684\uff0c\u6b63\u6781\u6750\u6599\u672c\u8eab\u7684\u9aa8\u67b6\u7ed3\u6784\u4ecd\u7136\u5341\u5206\u7a33\u5b9a\uff0c\u51e0\u4e4e\u770b\u4e0d\u89c1\u7535\u5316\u5b66\u6d3b\u6027\u91d1\u5c5e\u79bb\u5b50\u7684\u8fc1\u79fb\u548c\u6eb6\u89e3\u3002\u76f8\u5173\u7814\u7a76\u6210\u679c\u201cElevating Energy Density for Sodium-Ion Batteries through Multielectron Reactions<\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728Nano Letters<\/strong>\u4e0a\u3002<\/p>\n

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

\u56fe\u4e00\u3001Na4<\/sub>MnCr(PO4<\/sub>)3<\/sub>\u7684\u7ed3\u6784\u8868\u5f81<\/strong><\/p>\n

\"\"<\/p>\n

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\uff08b\uff09Na4<\/sub>MnCr(PO4<\/sub>)3<\/sub>\u7684XPS\u5168\u8c31\u3002<\/p>\n

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\uff08d\uff09Na4<\/sub>MnCr(PO4<\/sub>)3<\/sub>\u7684\u76f8\u5e94\u5143\u7d20\u5206\u5e03\u3002<\/p>\n

\u00a0<\/strong>\u56fe\u4e8c\u3001<\/strong>Na4<\/sub>MnCr(PO4<\/sub>)3<\/sub><\/strong>\u6b63\u6781\u7684\u7535\u5316\u5b66\u6027\u80fd<\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09\u5728\u76f8\u5bf9\u4e8eNa\/Na+<\/sup>\u76842.5-4.7 V\u7684\u7535\u538b\u7a97\u53e3\u7684CV\u66f2\u7ebf\uff0c\u626b\u63cf\u901f\u7387\u4e3a0.2 mV s-1<\/sup>\u3002<\/p>\n

\uff08b\uff09\u572830 mA g-1<\/sup>\u7684\u7535\u6d41\u5bc6\u5ea6\u4e0b\uff0c\u9996\u5708\u6052\u7535\u6d41\u5145\/\u653e\u7535\u66f2\u7ebf\u3002<\/p>\n

\uff08c\uff0cd\uff09Na4<\/sub>MnCr(PO4<\/sub>)3<\/sub>\u6b63\u6781\u57282.5-4.6 V\u7535\u538b\u7a97\u53e3\u5185\u7684\u500d\u7387\u6027\u80fd\u548c\u5faa\u73af\u7a33\u5b9a\u6027\u3002<\/p>\n

\u56fe\u4e09\u3001<\/strong>Na4<\/sub>MnCr(PO4<\/sub>)3<\/sub><\/strong>\u5728\u5145\u653e\u7535\u671f\u95f4\u7684\u975e\u539f\u4f4d\u8868\u5f81<\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09Na4<\/sub>MnCr(PO4<\/sub>)3<\/sub>\u7535\u6781\u57282.5-4.7 V\u7684\u7535\u538b\u7a97\u53e3\u4e0b\u4ee530 mA g-1<\/sup>\u5faa\u73af\u7684\u5145\/\u653e\u7535\u66f2\u7ebf\u53ca\u76f8\u5e94\u975e\u539f\u4f4dXRD\u548cXPS\u5206\u6790\u7684\u6807\u8bb0\u70b9\u3002<\/p>\n

\uff08b\uff09Na4<\/sub>MnCr(PO4<\/sub>)3<\/sub>\u4e2d\u7684\u91d1\u5c5e\u79bb\u5b50\u6c27\u5316\u8fd8\u539f\u7535\u5bf9\u7684\u80fd\u7ea7\u793a\u610f\u56fe\u3002<\/p>\n

\uff08c\uff09\u5728\u4e0d\u540c\u7684\u5145\u7535\/\u653e\u7535\u72b6\u6001\u4e0bNa4<\/sub>MnCr(PO4<\/sub>)3<\/sub>\u7535\u6781\u7684\u975e\u539f\u4f4dXRD\u56fe\u8c31\u3002<\/p>\n

\uff08d\uff09Na4<\/sub>MnCr(PO4<\/sub>)3<\/sub>\u6676\u683c\u53c2\u6570\u7684\u53d8\u5316\u3002<\/p>\n

\u00a0<\/strong>\u56fe\u56db\u3001<\/strong>Na4<\/sub>MnCr(PO4<\/sub>)3<\/sub><\/strong>\u7535\u6781\u7684<\/strong>TOF-SIMS<\/strong><\/p>\n

\"\"<\/p>\n

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

\u672c\u6587\u8bbe\u8ba1\u5e76\u5408\u6210\u4e86\u5177\u6709Mn2+<\/sup>\/Mn3+<\/sup>\uff0cMn3+<\/sup>\/ Mn4+<\/sup>\u548cCr3+<\/sup>\/Cr4+<\/sup>\u7684\u6c27\u5316\u8fd8\u539f\u7535\u5bf9\u7684Na4<\/sub>MnCr(PO4<\/sub>)3<\/sub>\u6b63\u6781\u6750\u6599\uff0c\u5b83\u662f\u76ee\u524d\u6240\u62a5\u9053\u7684\u94a0\u79bb\u5b50\u7535\u6c60\u4e2d\u5177\u6709\u8f83\u9ad8\u80fd\u91cf\u5bc6\u5ea6\u7684\u6b63\u6781\u6750\u6599\u3002Cr\u7684\u5f15\u5165\u4e0d\u4ec5\u53ef\u4ee5\u63d0\u9ad8\u653e\u7535\u5bb9\u91cf\u548c\u80fd\u91cf\u5bc6\u5ea6\uff0c\u800c\u4e14\u53ef\u4ee5\u6709\u6548\u5730\u6291\u5236\u5ba4\u6e29\u4e0bMn3+<\/sup>\u7684Jahn-Teller\u6548\u5e94\uff0c\u4ece\u800c\u786e\u4fddNASICON\u7ed3\u6784\u5728\u5faa\u73af\u8fc7\u7a0b\u4e2d\u7684\u7a33\u5b9a\u6027\u3002\u9ad8\u7535\u538b\u4e0b\u7684\u6db2\u6001\u7535\u89e3\u8d28\u5206\u89e3\u4ea7\u751f\u7684\u6b63\u6781\u7535\u89e3\u8d28\u662f\u5bfc\u81f4\u6709\u9650\u5faa\u73af\u7a33\u5b9a\u6027\u548c\u7535\u6781\u7684\u500d\u7387\u6027\u80fd\u7684\u8d77\u56e0\u3002\u79bb\u5b50\u6db2\u4f53\u7684\u4f7f\u7528\u548c\u5177\u6709\u66f4\u5bbd\u7535\u5316\u5b66\u7a97\u53e3\u7684\u5168\u56fa\u6001\u94a0\u7535\u6c60\u6709\u671b\u6539\u5584\u8be5\u6b63\u6781\u6750\u6599\u7684\u5faa\u73af\u6027\u80fd\u3002<\/p>\n

\u00a0<\/strong>\u6587\u732e\u94fe\u63a5\uff1a<\/strong>Elevating Energy Density for Sodium-Ion Batteries through Multielectron Reactions (DOI:<\/strong> 10.1021\/acs.nanolett.1c00100)<\/strong><\/p>\n

\u00a0<\/strong>\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

\u6750\u6599\u4eba\u6295\u7a3f\u4ee5\u53ca\u5185\u5bb9\u5408\u4f5c\u53ef\u52a0\u7f16\u8f91\u5fae\u4fe1\uff1acailiaokefu \u3002<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

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