{"id":81907,"date":"2017-05-20T14:30:07","date_gmt":"2017-05-20T06:30:07","guid":{"rendered":"\/\/m.iemloyee.com\/?p=81907"},"modified":"2017-05-20T10:23:29","modified_gmt":"2017-05-20T02:23:29","slug":"%e3%80%90%e6%8a%95%e7%a8%bf%e5%be%85%e5%ae%9a%e3%80%91%e6%96%b0%e5%9e%8b%e9%92%92%e5%9f%ba%e5%a4%9a%e9%87%91%e5%b1%9e%e6%b0%a7%e9%85%b8%e7%9b%90-%e7%94%a8%e4%ba%8e%e9%ab%98%e6%80%a7%e8%83%bd%e9%92%a0","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=81907","title":{"rendered":"\u65b0\u578b\u9492\u57fa\u591a\u91d1\u5c5e\u6c27\u9178\u76d0-\u7528\u4e8e\u9ad8\u6027\u80fd\u94a0\u79bb\u5b50\u7535\u6c60\u6b63\u6781\u6750\u6599"},"content":{"rendered":"
\u3010\u5f15\u8a00\u3011<\/strong><\/span><\/p>\n \u5ba4\u6e29\u94a0\u79bb\u5b50\u7535\u6c60\u7531\u4e8e\u539f\u6599\u8d44\u6e90\u4e30\u5bcc\uff0c\u6210\u672c\u4f4e\u5ec9\uff0c\u540c\u65f6\u5177\u6709\u76f8\u5bf9\u5408\u9002\u7684\u7535\u5316\u5b66\u7535\u4f4d\uff0c\u8fd1\u5e74\u6765\u5f15\u8d77\u5e7f\u6cdb\u7684\u7814\u7a76\u5174\u8da3\u3002\u7136\u800c\u94a0\u79bb\u5b50\u8f83\u9502\u79bb\u5b50\u534a\u5f84\u5927\u548c\u79bb\u5b50\u8fc1\u79fb\u7387\u4f4e\uff0c\u4e25\u91cd\u9650\u5236\u94a0\u79bb\u5b50\u5728\u7535\u6781\u6750\u6599\u4e2d\u7684\u53ef\u9006\u8131\u5d4c\u8fc7\u7a0b\uff0c\u4ece\u800c\u5f71\u54cd\u7535\u6c60\u7684\u7535\u5316\u5b66\u6027\u80fd\u3002\u76ee\u524d\uff0c\u5bfb\u627e\u548c\u5f00\u53d1\u65b0\u578b\u9ad8\u5bb9\u91cf\u3001\u4f4e\u6210\u672c\u548c\u7535\u5316\u5b66\u6027\u80fd\u4f18\u5f02\u7684\u94a0\u79bb\u5b50\u7535\u6c60\u6b63\u6781\u6750\u6599\u662f\u94a0\u79bb\u5b50\u7535\u6c60\u5b9e\u7528\u5316\u7684\u5173\u952e\u3002\u591a\u91d1\u5c5e\u6c27\u9178\u76d0(Polyoxometalates)\uff0c\u7b80\u79f0\u591a\u9178POMs\uff0c\u662f\u4e00\u7c7b\u7531\u8fc7\u6e21\u91d1\u5c5e\u79bb\u5b50\u901a\u8fc7\u6c27\u8fde\u63a5\u800c\u5f62\u6210\u7684\u5177\u6709\u7eb3\u7c73\u5c3a\u5ea6\u7684\u91d1\u5c5e-\u6c27\u7c07\u7c7b\u5316\u5408\u7269\uff0c\u56e0\u7ec4\u6210\u7ed3\u6784\u7684\u591a\u6837\u6027\uff0c\u4e30\u5bcc\u7684\u6c27\u5316\u8fd8\u539f\u6027\u80fd\u548c\u7a33\u5b9a\u6027\uff0c\u4f7f\u5176\u5728\u5149\u5b66\uff0c\u7535\u5b66\u548c\u50ac\u5316\u7b49\u9886\u57df\u5907\u53d7\u5173\u6ce8\u3002\u8fd1\u5e74\u6765\u5f00\u53d1\u5229\u7528\u591a\u9178POMs\u4f5c\u4e3a\u65b0\u578b\u7535\u6781\u6750\u6599\u5df2\u7ecf\u6210\u4e3a\u4e00\u4e2a\u7814\u7a76\u70ed\u70b9\uff0c\u5e76\u6210\u4e3a\u4eba\u4eec\u89e3\u51b3\u8fd1\u5e74\u6765\u65e5\u6e10\u51f8\u663e\u7684\u80fd\u6e90\u548c\u73af\u5883\u95ee\u9898\u7684\u65b0\u65b9\u5411\u4e4b\u4e00\u3002<\/p>\n \u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/span><\/p>\n \u8fd1\u65e5\uff0c\u65b0\u52a0\u5761\u5357\u6d0b\u7406\u5de5\u5927\u5b66\u7533\u6cfd\u9aa7\u6559\u6388\u3001\u5218\u7ee7\u78ca\u535a\u58eb\u3001\u9648\u6862\u535a\u58eb\u548c\u82f1\u56fd\u683c\u62c9\u65af\u54e5\u5927\u5b66\u5ba3\u4e3a\u6c11\u535a\u58eb\u3001\u5409\u6797\u5927\u5b66\u6a0a\u6653\u5cf0\u6559\u6388\u5408\u4f5c\uff0c\u6210\u529f\u5f00\u53d1\u51fa\u65b0\u578b\u9492\u57fa\u591a\u91d1\u5c5e\u6c27\u9178\u76d0\uff08Na2<\/sub>H8<\/sub>[MnV13<\/sub>O38<\/sub>]\uff09\u5ba4\u6e29\u94a0\u79bb\u5b50\u7535\u6c60\u6b63\u6781\u6750\u6599\u3002\u8be5\u6750\u6599\u5177\u6709\u6781\u5f3a\u7684\u7535\u5b50\/\u79bb\u5b50\u63a5\u7eb3\u80fd\u529b\uff0c\u72ec\u7279\u7684\u4e8c\u7ef4\u548c\u4e00\u7ef4\u79bb\u5b50\u4f20\u8f93\u901a\u9053\uff0c\u548c\u76f8\u5bf9\u7406\u60f3\u7684\u7ed3\u6784\u7a33\u5b9a\u6027\uff0c\u8fdb\u800c\u5c55\u73b0\u51fa\u4f18\u5f02\u7684\u50a8\u94a0\u7279\u6027\u3002\u76f8\u5173\u7814\u7a76\u6210\u679c\u4ee5\u201cElectron\/Ion Sponge\u201d Like V-Based Polyoxometalate: Toward High-Performance Cathode for Rechargeable Sodium Ion Batteries\u201d\u4e3a\u9898\u4e8e2017\u5e745\u670811\u65e5\u53d1\u8868\u5728\u671f\u520aACS Nano \u4e0a\u3002<\/p>\n \u3010<\/strong>\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/span><\/p>\n \u56fe<\/strong>1 Na2<\/sub>H8<\/sub>[MnV13<\/sub>O38<\/sub>] <\/strong>\u7684\u6676\u4f53\u7ed3\u6784\u548c\u94a0\u79bb\u5b50\u4e8c\u7ef4\u548c\u4e00\u7ef4\u4f20\u8f93\u901a\u9053<\/strong><\/span><\/p>\n \u00a0<\/strong>a<\/strong>) Na2<\/sub>H8<\/sub>[MnV13<\/sub>O38<\/sub>] \u7c89\u672b\u884d\u5c04 XRD \u8c31\uff08\u7ea2\u8272\uff1a\u5b9e\u9a8c\u7ed3\u679c\uff1b\u9ed1\u8272\uff1a\u5355\u6676\u6a21\u62df\u7ed3\u679c\uff09\uff1b\u63d2\u56fe\u662f[MnV13<\/sub>O38<\/sub>]10- <\/sup>\u5206\u5b50\u7ed3\u6784\u56fe\uff1bb) <\/strong>\u94a0\u79bb\u5b50\u6cbfab<\/em> \u5e73\u9762\u7684\u4e8c\u7ef4\u4f20\u8f93\u901a\u9053\uff1bc<\/strong>) \u94a0\u79bb\u5b50\u6cbf [111]\u65b9\u5411\u7684\u4e00\u7ef4\u4f20\u8f93\u901a\u9053<\/p>\n \u56fe<\/strong>2 Na2<\/sub>H8<\/sub>[MnV13<\/sub>O38<\/sub>] \/Graphene <\/strong>\u590d\u5408\u6750\u6599\u5f62\u8c8c<\/strong><\/span><\/p>\n a<\/strong>) – c<\/strong>) \u4e0d\u540c\u653e\u5927\u500d\u6570\u4e0b\u7684\u626b\u63cf\u7535\u955c\u7167\u7247\u663e\u793a\u77f3\u58a8\u70ef\u5747\u5300\u5305\u8986\u5728Na2<\/sub>H8<\/sub>[MnV13<\/sub>O38<\/sub>]\u7eb3\u7c73\u7247\u8868\u9762\uff1b\u6bcf\u7c92Na2<\/sub>H8<\/sub>[MnV13<\/sub>O38<\/sub>]\u7eb3\u7c73\u7247\u7684\u5c3a\u5bf8\u5728200-400 nm\u4e0d\u7b49\uff1b<\/p>\n d) <\/strong>\u900f\u5c04\u7535\u955c\u7167\u7247\u548c e<\/strong>) \u76f8\u5173\u5143\u7d20mapping \u56fe\uff1b\u8fdb\u4e00\u6b65\u8bba\u8bc1\u77f3\u58a8\u70ef\u5747\u5300\u5305\u8986\u5728Na2<\/sub>H8<\/sub>[MnV13<\/sub>O38<\/sub>]\u7eb3\u7c73\u7247\u8868\u9762\uff0c\u6784\u7b51\u8d77\u4e09\u7ef4\u7684\u5bfc\u7535\u901a\u8def\u548c\u94a0\u79bb\u5b50\u4f20\u8f93\u8def\u5f84\uff1b<\/p>\n \u56fe<\/strong>3 Na2<\/sub>H8<\/sub>[MnV13<\/sub>O38<\/sub>] \/Graphene <\/strong>\u590d\u5408\u6750\u6599\u7535\u5316\u5b66\u50a8\u94a0\u7279\u6027<\/strong><\/span><\/p>\n a<\/strong>) C\/10 \u6052\u6d41\u5145\u653e\u7535\u66f2\u7ebf \u548c b<\/strong>) \u4f0f\u5b89\u66f2\u7ebf\uff1b\u5c55\u73b0\u51fa\u4e09\u5bf9\u5145\u653e\u7535\u5e73\u53f0\uff0c\u5bf9\u5e94\u4e09\u5bf9\u53ef\u9006\u7684\u4e24\u76f8\u53cd\u5e94\u6216\u8005\u4e09\u79cd\u4e0d\u540c\u7684\u94a0\u8131\u5d4c\u4f4d\u7f6e\uff1bc) <\/strong>C\/5\u7535\u6d41\u5bc6\u5ea6\u4e0b\u5faa\u73af\u7a33\u5b9a\u6027 \uff08100 \u6b21\u5faa\u73af\u540e\uff0c\u5bb9\u91cf\u4fdd\u7559\u91cf\u4e3a81%\uff09\u548c\u5e93\u4f26\u6548\u7387\uff1bd<\/strong>) \u5b9e\u9a8c\u8ba1\u7b97\u5f97\u5230Na+<\/sup> \u8868\u89c2\u6269\u6563\u7cfb\u6570\uff1b\u6570\u91cf\u7ea7\u5728 10-14<\/sup> -10-15<\/sup>\uff0c\u4e0e\u6587\u732e\u62a5\u9053\u4f20\u7edf\u6b63\u6781\u6750\u6599\u5982 \u5bcc\u94a0\u5c42\u72b6Nax<\/sub>MnO2<\/sub> \uff0810-14<\/sup> -10-16<\/sup>\uff09\u548c Nax<\/sub>V3<\/sub>O8<\/sub> \uff0810-14<\/sup>\uff09 \u7b49\u53ef\u6bd4\uff1b<\/p>\n e<\/strong>) \u5b9e\u9a8c\u8ba1\u7b97\u5f97\u5230\u4e0d\u540c\u7535\u4f4d\u4e0b\u7535\u8377\u8f6c\u79fb\u7535\u963b\u503c\uff1b\u63d2\u56fe\u663e\u793a V\u76844d \u8f68\u9053\u7531\u4e8e \u6676\u4f53\u573a\u6548\u5e94\u548cJahn-Teller (JT) \u6270\u52a8\u5e26\u6765\u7684\u80fd\u7ea7\u5288\u88c2\uff0c\u6697\u542bV-t2g<\/sub>(3) \u5e26\u7535\u5b50\u53c2\u4e0e\u5bfc\u7535\uff1b<\/p>\n \u56fe<\/strong>4 Na2<\/sub>H8<\/sub>[MnV13<\/sub>O38<\/sub>]<\/strong>\u50a8\u94a0\u673a\u7406<\/strong>–<\/strong>\u6750\u6599\u7ec4\u5206\u548c\u7ed3\u6784\u53d8\u5316<\/strong><\/p>\n a<\/strong>) – d<\/strong>) \u4e0d\u540c\u5145\u653e\u7535\u72b6\u6001\u4e0b\uff08\u56fe3a \u4e2d\uff0ca<\/em>, b<\/em>, c<\/em>, d<\/em>\uff09\uff0cV5+<\/sup>\/V4+<\/sup> \u6bd4\u4f8b\u53d8\u5316\uff1b\u8bba\u8bc1\u4e86V5+<\/sup>\/V4+ <\/sup>\u6c27\u5316\u8fd8\u539f\u53cd\u5e94\u8f6c\u53d8\u4e3b\u5bfc\u5d4c\u94a0\u548c\u8131\u94a0\u8fc7\u7a0b, \u540c\u65f6\u51b3\u5b9a\u6700\u5927\u94a0\u8131\u5d4c\u5bb9\u91cf\uff1b e<\/strong>) \u4e0d\u540c\u5145\u653e\u7535\u72b6\u6001\u4e0b, V=O \u4f38\u7f29\u632f\u52a8\u5438\u6536\u5cf0\u5cf0\u4f4d\u7684\u53d8\u5316\uff1b\u653e\u7535\u8fc7\u7a0b\u4e2d\uff0c\u5cf0\u4f4d\u53d1\u751f\u7ea2\u79fb\uff0c\u8fd9\u662f\u7531\u4e8e V5+<\/sup> \u88ab\u8fd8\u539f\u4e3aV4+<\/sup>\uff0c \u4ece\u800c\u5bfc\u81f4V=O \u4f38\u7f29\u632f\u52a8\u80fd\u964d\u4f4e\uff1b \u5145\u7535\u8fc7\u7a0b\u4e2d\uff0c\u4f34\u968f\u7740\u6c27\u5316\u53cd\u5e94\u7684\u53d1\u751f\uff0c\u5cf0\u4f4d\u53d1\u751f\u84dd\u79fb\uff0c\u76f4\u81f3\u521d\u59cb\u4f4d\u7f6e\u3002V=O \u4f38\u7f29\u632f\u52a8\u5438\u6536\u5cf0\u5cf0\u4f4d\u7684\u53ef\u9006\u53d8\u5316\u8868\u660e\uff1a1\uff09V5+<\/sup>\/V4+<\/sup>\u6c27\u5316\u8fd8\u539f\u53cd\u5e94\u4e3b\u5bfc\u94a0\u8131\u5d4c\u8fc7\u7a0b\uff1b\u540c\u65f62\uff09\u8be5\u8fc7\u7a0b\u5b8c\u5168\u53ef\u9006\u548c\u6750\u6599\u7ed3\u6784\u4fdd\u6301\u7a33\u5b9a\u3002<\/p>\n \u56fe<\/strong>5 Na2<\/sub>H8<\/sub>[MnV13<\/sub>O38<\/sub>]<\/strong>\u50a8\u94a0\u673a\u7406<\/strong>–<\/strong>\u7406\u8bba\u6a21\u578b\u5efa\u7acb<\/strong><\/p>\n a<\/strong>) Na+<\/sup> \u5d4c\u5165\u8fc7\u7a0b\u4e2d\uff0c\u4ece [MnV13<\/sub>O38<\/sub>]8-<\/sup>\u5230 [MnV13<\/sub>O38<\/sub>]20-<\/sup> \u5206\u5b50\u7ed3\u6784\u7684\u8f6c\u53d8\uff1b\u5176\u4e2dV3-Mn \u95f4\u8ddd\u4ece3.093 \u589e\u52a0\u52303.604 \u00c5\uff0c V1-Mn \u95f4\u8ddd\u4ece3.115\u51cf\u5c0f\u52302.854 \u00c5\uff0cV1-O1\u952e\u957f\u4ece2.281 \u51cf\u5c0f\u52302.080 \u00c5\u3002\u8fd9\u4e9b\u952e\u957f\u53d8\u5316\u5e26\u6765\u7684\u6574\u4f53\u5f71\u54cd\u662f[MnV13<\/sub>O38<\/sub>]n-<\/sup> \u7c07\u5408\u7269\u4f53\u79ef\u81a8\u80c0\u7ea67.5%\uff0c \u8bc1\u5b9e\u4e86\u5176\u8f83\u597d\u7684\u7ed3\u6784\u7a33\u5b9a\u6027\u3002b<\/strong>) [MnV13<\/sub>O38<\/sub>]20-<\/sup>\u7c07\u5408\u7269\u5dee\u5206\u7535\u8377\u5206\u5e03\u56fe\uff1b\u53ef\u660e\u663e\u770b\u51fa\u94a0\u539f\u5b50\u5c06\u7535\u8377\u8f6c\u79fb\u7ed9\u7c07\u5408\u7269\uff0c\u4ece\u800c\u4f7f\u5176\u81ea\u8eab\u5e26\u6b63\u7535\u8377\u3002\u7535\u5b50\u4e91\u5219\u4e3b\u8981\u96c6\u4e2d\u5728\u5916\u5c42\u6c27\u539f\u5b50\u4e0a\uff0c\u540c\u65f6\u5c11\u90e8\u5206\u5206\u5e03\u5728\u9492\u5468\u56f4\u3002c<\/strong>) \u7535\u5b50\/\u79bb\u5b50\u6838\u58f3\u7ed3\u6784\u6a21\u578b\uff1b\u5176\u4e2dVO6<\/sub>x-<\/sup> \u548c Na+<\/sup> \u4e4b\u95f4\u7684\u5e93\u4f26\u5438\u5f15\u529b\u6709\u6548\u5730\u5e73\u8861\u4e86VO6<\/sub>x-<\/sup>\u4e4b\u95f4\u7684\u5e93\u4f26\u6392\u65a5\u529b\uff0c\u8fdb\u800c\u4fdd\u8bc1\u4e86\u5728\u5927\u91cf\u5d4c\u94a0\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6574\u4e2a\u7c07\u5408\u7269\u7684\u7ed3\u6784\u7a33\u5b9a\u6027\u3002<\/p>\n \u3010\u5c0f\u7ed3\u3011<\/strong><\/span><\/p>\n \u672c\u6587\u62a5\u9053\u4e86\u4e00\u79cd\u65b0\u578b\u7684\u5ba4\u6e29\u94a0\u79bb\u5b50\u7535\u6c60\u6b63\u6781\u6750\u6599\uff0c\u9492\u57fa\u591a\u91d1\u5c5e\u6c27\u9178\u76d0\u3002\u5b83\u5177\u6709\u6781\u5f3a\u7684\u7535\u5b50\/\u79bb\u5b50\u63a5\u7eb3\u80fd\u529b\uff0c\u540c\u65f6\u5177\u6709\u72ec\u7279\u7684\u4e8c\u7ef4\u548c\u4e00\u7ef4\u79bb\u5b50\u4f20\u8f93\u901a\u9053\uff0c\u548c\u76f8\u5bf9\u8f83\u597d\u7684\u7ed3\u6784\u7a33\u5b9a\u6027\uff0c\u5c55\u73b0\u51fa\u7406\u60f3\u7684\u94a0\u79bb\u5b50\u5b58\u50a8\u80fd\u529b\u3002\u8be5\u5de5\u4f5c\u63ed\u793a\u4e86\u94a0\u79bb\u5b50\u5728\u591a\u91d1\u5c5e\u6c27\u9178\u76d0\u7c7b\u6b63\u6781\u6750\u6599\u5b58\u50a8\u673a\u7406\uff0c\u62d3\u5bbd\u4e86\u94a0\u79bb\u5b50\u6b63\u6781\u6750\u6599\u9009\u62e9\u8303\u56f4\uff0c\u5177\u6709\u91cd\u8981\u7684\u79d1\u5b66\u548c\u5e94\u7528\u4ef7\u503c\u3002<\/p>\n \u6587\u732e\u94fe\u63a5\uff1a\u201cElectron\/Ion Sponge\u201d-Like V-Based Polyoxometalate: Toward High-Performance Cathode for Rechargeable Sodium Ion Batteries<\/a>\uff08ACS Nano\uff0c2017\uff0cDOI: <\/strong>10.1021\/acsnano.7b02062\uff09<\/span><\/p>\n \u672c\u6587\u7531\u6750\u6599\u4eba\u65b0\u80fd\u6e90\u7ec4 \u80cc\u9006\u65f6\u5149 \u7f16\u8f91\u6574\u7406\u3002<\/p>\n<\/p>\n
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