{"id":102067,"date":"2017-09-20T14:00:43","date_gmt":"2017-09-20T06:00:43","guid":{"rendered":"\/\/m.iemloyee.com\/?p=102067"},"modified":"2017-09-17T17:12:58","modified_gmt":"2017-09-17T09:12:58","slug":"%e9%83%91%e5%8d%97%e5%b3%b0nature-communications%ef%bc%9a%e4%b8%ad%e7%a9%ba%e6%a0%b8%e5%a3%b3%e7%bb%93%e6%9e%84%e7%9a%84%e5%a4%9a%e5%ad%94%e7%a2%b3%e7%ba%b3%e7%b1%b3%e7%89%87%e7%94%a8%e4%ba%8e","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=102067","title":{"rendered":"\u90d1\u5357\u5cf0Nature Communications\uff1a\u4e2d\u7a7a\u6838\u58f3\u7ed3\u6784\u7684\u591a\u5b54\u78b3\u7eb3\u7c73\u7247\u7528\u4e8e\u9ad8\u8d1f\u8f7d\u7684\u9502\u786b\u7535\u6c60\u6b63\u6781"},"content":{"rendered":"
\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n \u9502\u786b\u7535\u6c60\u7814\u53d1\u7684\u6838\u5fc3\u76ee\u6807\u662f\u901a\u8fc7\u4f18\u5316\u7535\u6781\u7ed3\u6784\u7b49\u9014\u5f84\u63d0\u9ad8\u7535\u6c60\u4f53\u7cfb\u7684\u80fd\u91cf\u5bc6\u5ea6\u3002\u76ee\u524d\uff0c\u7edd\u5927\u591a\u6570\u9502\u786b\u7535\u6c60\u6b63\u6781\u7684\u786b\u8d1f\u8f7d\u91cf\u90fd\u5904\u4e8e\u76f8\u5bf9\u8f83\u4f4e\u7684\u6c34\u5e73\uff0c\u5373\u6b63\u6781\u6750\u6599\u4e2d\u7684\u786b\u542b\u91cf\u4f4e\u4e8e70 wt%\uff0c\u9762\u8d1f\u8f7d\u91cf\u4f4e\u4e8e2 mg cm-2<\/sup>\u3002\u8fd9\u5bfc\u81f4\u9502\u786b\u7535\u6c60\u7684\u9762\u5bb9\u91cf\uff082 mAh cm-2<\/sup>\uff09\u8fdc\u4f4e\u4e8e\u76ee\u524d\u5546\u4e1a\u9502\u79bb\u5b50\u7535\u6c60\u7684\u9762\u5bb9\u91cf\uff084 mAh cm-2<\/sup>\uff09\u3002\u4e3a\u4e86\u63d0\u5347\u9502\u786b\u7535\u6c60\u6b63\u6781\u7684\u80fd\u91cf\u5bc6\u5ea6\uff0c\u5c31\u9700\u8981\u8fdb\u4e00\u6b65\u589e\u5927\u786b\u8d1f\u8f7d\u91cf\u3002\u7136\u800c\uff0c\u589e\u5927\u786b\u8d1f\u8f7d\u91cf\u5f80\u5f80\u4f1a\u5bfc\u81f4\u4e0b\u5217\u95ee\u9898\uff1a(1) \u968f\u7740\u542b\u786b\u6d3b\u6027\u7269\u8d28\u539a\u5ea6\u7684\u589e\u52a0\uff0c\u79bb\u5b50\u6269\u6563\u548c\u7535\u5b50\u4f20\u9012\u8fc7\u7a0b\u53d7\u5230\u7684\u963b\u529b\u589e\u5927\uff0c\u4ece\u800c\u5bfc\u81f4\u786b\u7684\u5229\u7528\u7387\u4e0b\u964d\uff0c\u9502\u786b\u7535\u6c60\u6b63\u6781\u7684\u500d\u7387\u6027\u80fd\u548c\u5faa\u73af\u7a33\u5b9a\u6027\u53d8\u5dee\uff1b(2)\u7531\u4e8e\u5185\u90e8\u7684\u542b\u786b\u6d3b\u6027\u7269\u8d28\u4e0d\u80fd\u88ab\u5145\u5206\u5229\u7528\uff0c\u9502\u786b\u7535\u6c60\u6b63\u6781\u7684\u4f53\u79ef\u6bd4\u5bb9\u91cf\u53d7\u5230\u6781\u5927\u7684\u9650\u5236\u3002<\/p>\n \u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n \u8fd1\u65e5\uff0c\u53a6\u95e8\u5927\u5b66<\/strong>\u7684\u90d1\u5357\u5cf0\u6559\u6388\uff08\u901a\u8baf\u4f5c\u8005\uff09<\/strong>\u8bfe\u9898\u7ec4\u9488\u5bf9\u786b\u8d1f\u8f7d\u91cf\u589e\u5927\u5bfc\u81f4\u7684\u4e00\u7cfb\u5217\u95ee\u9898\uff0c\u8bbe\u8ba1\u5e76\u5236\u5907\u4e86\u77f3\u58a8\u70ef@\u591a\u5b54\u78b3\u7684\u4e2d\u7a7a\u6838\u58f3\u7ed3\u6784\u7eb3\u7c73\u7247\uff08G@HMCN\uff09\uff0c\u5e76\u5c06\u5176\u8d1f\u8f7d\u786b\u5f62\u6210G@HMCN\/S\uff0c\u518d\u4e0e\u77f3\u58a8\u70ef\uff08G\uff09\u7ecf\u771f\u7a7a\u62bd\u6ee4\u5f97\u5230\u7d27\u5bc6\u5806\u579b\u7684G@HMCN\/S-G\u5c42\u72b6\u7ed3\u6784\u3002\u5c06G@HMCN\/S-G\u4f5c\u4e3a\u9ad8\u8d1f\u8f7d\u7684\u81ea\u652f\u6491\u9502\u786b\u7535\u6c60\u6b63\u6781\uff0c\u5176\u500d\u7387\u6027\u80fd\u53ca\u5faa\u73af\u7a33\u5b9a\u6027\u53d6\u5f97\u4e86\u7a81\u7834\u6027\u7684\u8fdb\u5c55\u3002\u5f53\u786b\u7684\u9762\u8d1f\u8f7d\u91cf\u4e3a5 mg cm-2<\/sup>\uff0c\u786b\u542b\u91cf\u4e3a73 wt%\u65f6\uff0cG@HMCN\/S-G\u6b63\u6781\u4e0d\u4ec5\u5448\u73b0\u51fa\u4f18\u5f02\u7684\u500d\u7387\u6027\u80fd\u53ca\u5faa\u73af\u7a33\u5b9a\u6027\uff0c\u8fd8\u5728\u9762\u5bb9\u91cf\uff085.7 mAh cm-2<\/sup>\uff09\u548c\u4f53\u79ef\u6bd4\u5bb9\u91cf\uff081330 mAh cm-3<\/sup>\uff09\u4e4b\u95f4\u8fbe\u6210\u4e86\u5f88\u597d\u7684\u5e73\u8861\u3002\u5f53\u786b\u8d1f\u8f7d\u91cf\u4e3a10 mg cm-2<\/sup>\u65f6\uff0c\u5176\u9762\u5bb9\u91cf\u9ad8\u8fbe11.4 mAh cm-2<\/sup>\u3002\u8be5\u7814\u7a76\u6210\u679c\u4ee5\u201cSelf-supporting sulfur cathodes enabled by two-dimensional carbon yolk-shell nanosheets for high-energy-density lithium-sulfur batteries<\/strong>\u201d\u4e3a\u9898\uff0c\u53d1\u8868\u5728Nature Communications<\/strong>\u4e0a\u3002<\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n \u56fe<\/strong>1. G@HMCN<\/strong>\u7684\u7075\u611f\u6765\u6e90\u53ca\u5236\u5907\u8fc7\u7a0b<\/strong><\/p>\n (a) G@HMCN\u7684\u7075\u611f\u6765\u6e90\u4e8e\u76f8\u518c\uff1a\u4e8c\u7ef4\u7684\u77f3\u58a8\u70ef\uff08G\uff09\u548c\u4e8c\u7ef4\u7684\u591a\u5b54\u78b3\u7eb3\u7c73\u7247\uff08HMCN\uff09\u6784\u6210G@HMCN\u4e8c\u7ef4\u4e2d\u7a7a\u6838\u58f3\u7ed3\u6784\u3002\u5927\u91cfG@HMCN\u7eb3\u7c73\u7247\u4e0e\u77f3\u58a8\u70ef\u7ecf\u5806\u579b\u6784\u6210G@HMCN-S\u591a\u5c42\u7ed3\u6784\uff0c\u5176\u7ed3\u6784\u5982\u540c\u76f8\u518c\u3002\u6700\u540e\u5728G@HMCN-S\u4e0a\u8d1f\u8f7d\u786b\u5f97\u5230\u81ea\u652f\u6491\u6b63\u6781\u3002<\/p>\n (b) G@HMCN\u7684\u5236\u5907\u8fc7\u7a0b\uff1a\u5728\u6c27\u5316\u77f3\u58a8\u70ef\uff08GO\uff09\u6eb6\u6db2\u4e2d\u8fdb\u884c\u6b63\u7845\u9178\u4e59\u916f(TEOS)\u7684\u6c34\u89e3\u5f97\u5230GO@SiO2<\/sub>\uff0c\u518d\u540c\u65f6\u8fdb\u884c\u6db2\u76f8\u805a\u5408\u548cTEOS\u6c34\u89e3\u5f97\u5230GO@SiO2<\/sub>@PB\/ SiO2<\/sub>\uff0c\u7ecf\u9ad8\u6e29\u78b3\u5316\u3001\u8fd8\u539f\uff0c\u6700\u540e\u7528HF\u523b\u8680\u9664\u53bbSiO2<\/sub>\u5f97\u5230G@HMCN\u3002\u5176\u4e2dPB\u4e3a\u82ef\u5e76\u6076\u55ea\u6811\u8102\uff0c\u5176\u5355\u4f53\u4e3a\u95f4\u82ef\u4e8c\u915a\u3001\u7532\u919b\u3001\u4e59\u4e8c\u80fa\u3002<\/p>\n \u56fe<\/strong>2. G@HMCN<\/strong>\u7684\u5f62\u8c8c\u53ca\u7ed3\u6784\u8868\u5f81<\/strong><\/p>\n (a,b) SEM\u56fe\uff0c(a)\u4e2d\u63d2\u56fe\u4e3aG@HMCN\u5206\u6563\u5728\u6c34\u4e2d\u7684\u7167\u7247\u3002<\/p>\n (c,d) TEM\u56fe\u3002<\/p>\n (e,f) \u5149\u5b66\u7167\u7247\u3002<\/p>\n (g-i) SEM\u622a\u9762\u56fe\u3002<\/p>\n (j) N2<\/sub>\u7b49\u6e29\u5438\u9644\u7ebf\u3002<\/p>\n (k) \u5b54\u5f84\u5206\u5e03\u3002<\/p>\n (i) XPS\u8c31\u56fe\u3002<\/p>\n (m) XPS\u8c31\u56fe\u4e2d\u7684N 1s\u5cf0\u3002G@HMCN\u7684N\u63ba\u6742\u6d53\u5ea6\u4e3a4.5 at%\u3002<\/p>\n \u6ce8\uff1a(a-e)\u3001(g-i)\u4e2d\u7684\u6807\u5c3a\u5206\u522b\u4e3a2 \u03bcm\u300150\u2009nm\u3001100\u2009nm\u300150\u2009nm\u30011\u2009cm\u30015 \u03bcm\u3001500\u2009nm\u3001100\u2009nm\u3002<\/p>\n \u56fe<\/strong>3. G@HMCN\/S-G<\/strong>\u7684\u5236\u5907\u53ca\u8868\u5f81<\/strong><\/p>\n (a) G@HMCN\/S\u548cG@HMCN\/S-G\u7684\u5236\u5907\u8fc7\u7a0b\uff1aNa2<\/sub>S2<\/sub>O3<\/sub>\u5728\u9178\u6027\u6eb6\u6db2\u4e2d\u53d1\u751f\u6b67\u5316\u53cd\u5e94\u751f\u6210\u7684\u786b\u5747\u5300\u8d1f\u8f7d\u5728G@HMCN\u4e0a\u5f62\u6210G@HMCN\/S\uff0cG@HMCN\/S\u4e0e\u77f3\u58a8\u70ef\u7ecf\u771f\u7a7a\u62bd\u6ee4\u5f97\u5230\u7eb8\u72b6\u7684G@HMCN\/S-G\uff0c\u5176\u5bc6\u5ea6\u4e3a1.76 mg cm-3<\/sup>\u3002<\/p>\n (b) G@HMCN\/S\u7684SEM\u56fe\uff0c\u53f3\u4e0a\u89d2\u63d2\u56fe\u4e3aG@HMCN\/S\u5206\u6563\u5728\u6c34\u4e2d\u7684\u7167\u7247\uff0c\u53f3\u4e0b\u89d2\u63d2\u56fe\u4e3aG@HMCN\/S\u7684EDX\u8c31\u56fe\u3002<\/p>\n (c) G@HMCN\/S\u548cG@HMCN\/S-G\u7684\u70ed\u91cd\u66f2\u7ebf\uff0c\u6d4b\u8bd5\u6c14\u6c1b\u4e3aN2<\/sub>\u3002<\/p>\n (d) G@HMCN\/S\u7684STEM\u56fe\u53ca\u5143\u7d20\u5206\u5e03\u56fe\u3002<\/p>\n (e) G@HMCN\/S-G\u6b63\u6781\u7684\u5149\u5b66\u7167\u7247\u3002<\/p>\n (f-h) G@HMCN\/S-G\u7684SEM (f)\u4fef\u89c6\u56fe\uff1b(g,h)\u622a\u9762\u56fe\u3002<\/p>\n \u6ce8\uff1a(b)\u3001(f,g)\u56fe\u4e2d\u7684\u6807\u5c3a\u4e3a1\u2009\u03bcm\uff0c(h)\u56fe\u4e2d\u7684\u6807\u5c3a\u4e3a200\u2009nm\u3002<\/p>\n \u00a0<\/strong>\u56fe<\/strong>4. <\/strong>G@HMCN\/S-G<\/strong>\u6b63\u6781\u7684\u7535\u5316\u5b66\u6027\u80fd\u8868\u5f81<\/strong><\/p>\n (a) G@HMCN\/S-G-2.0\uff1b(b) G@HMCN\/S-G-3.5\uff1b(c) G@HMCN\/S-G-5.0\u7684\u5faa\u73af\u4f0f\u5b89\u66f2\u7ebf\uff0c\u626b\u63cf\u901f\u5ea6\u4e3a0.05\u2009mV\u2009s\u22121<\/sup>\u3002\u5faa\u73af\u4f0f\u5b89\u66f2\u7ebf\u4e0a\u7684\u56db\u4e2a\u6c27\u5316\u8fd8\u539f\u5cf0\u4f9d\u6b21\u5bf9\u5e94\u4e0b\u5217\u53cd\u5e94\u8fc7\u7a0b\uff1a(i) S8<\/sub>\u8fd8\u539f\u4e3a\u53ef\u6eb6\u6027\u591a\u786b\u5316\u7269Li2<\/sub>S4-8<\/sub>\uff1b(ii) \u53ef\u6eb6\u6027\u591a\u786b\u5316\u7269Li2<\/sub>S4-8<\/sub>\u8fdb\u4e00\u6b65\u8fd8\u539f\u4e3a\u4e0d\u53ef\u6eb6\u7684Li2<\/sub>S2<\/sub>\u3001Li2<\/sub>S\uff1b(iii) Li2<\/sub>S2<\/sub>\u3001Li2<\/sub>S \u6c27\u5316\u4e3aLi2<\/sub>S4-8<\/sub>\uff1b(iv) Li2<\/sub>S4-8<\/sub>\u8fdb\u4e00\u6b65\u6c27\u5316\u4e3aS8<\/sub>\u3002<\/p>\n (d,e) \u5145\u653e\u7535\u500d\u7387\u4e3a0.2\u2009C\u65f6G@HMCN\/S-G-2.0\u548cG@HMCN\/S-G-5.0\u7684\u5145\u653e\u7535\u66f2\u7ebf\u3002<\/p>\n (f) \u5145\u653e\u7535\u500d\u7387\u4e3a0.2\u2009C\u65f6G@HMCN\/S-G-2.0\u3001G@HMCN\/S-G-3.5\u3001G@HMCN\/S-G-5.0\u7684\u5faa\u73af\u7a33\u5b9a\u6027\u3002<\/p>\n (g,h) \u5145\u653e\u7535\u500d\u7387\u4e3a0.1~4 C\u65f6(g) G@HMCN\/S-G-2.0\u548c(h)G@HMCN\/S-G-5.0\u7684\u5145\u653e\u7535\u66f2\u7ebf\u3002<\/p>\n (i) G@HMCN\/S-G-2.0\u3001G@HMCN\/S-G-3.5\u3001G@HMCN\/S-G-5.0\u7684\u500d\u7387\u6027\u80fd\u3002<\/p>\n (j)\u5145\u653e\u7535\u500d\u7387\u4e3a1\u2009C\u65f6G@HMCN\/S-G-5.0\u7684\u957f\u5faa\u73af\u7a33\u5b9a\u6027\u3002<\/p>\n \u6ce8\uff1a(1) \u77ed\u7ebf\u540e\u6570\u5b57\u4e3a\u786b\u7684\u9762\u8d1f\u8f7d\u91cf\uff0c\u5355\u4f4d\u4e3amg cm-2<\/sup>\uff0c\u5982G@HMCN\/S-G-2.0\u8868\u793aG@HMCN\/S-G\u6b63\u6781\u4e2d\u786b\u7684\u9762\u8d1f\u8f7d\u91cf\u4e3a2.0 mg cm-2<\/sup>\uff1b(2) 1C=1675 mA g-1<\/sup>\u3002<\/p>\n \u56fe<\/strong>5. <\/strong>\u5438\u9644\u6a21\u578b\u53ca<\/strong>XPS<\/strong>\u8c31\u56fe<\/strong><\/p>\n (a) G@HMCN\/S-G\u6b63\u6781\u5728\u7ed3\u6784\u4e0a\u7684\u4f18\u52bf\u3002<\/p>\n (b-d) G@HMCN\/S-G-2.0\u3001G@HMCN\/S-G-3.5\u3001G@HMCN\/S-G-5.0\u7684SEM\u622a\u9762\u56fe\u3002<\/p>\n (e) \u7ecf\u8fc750\u6b21\u5faa\u73af\u5145\u653e\u7535\u540eG@HMCN\/S-G-2.0\u3001G@HMCN\/S-G-3.5\u3001G@HMCN\/S-G-5.0\u7684\u8d28\u91cf\u6bd4\u5bb9\u91cf\u548c\u4f53\u79ef\u6bd4\u5bb9\u91cf\uff0c\u5145\u653e\u7535\u500d\u7387\u4e3a0.2 C\u3002<\/p>\n (f) \u5145\u653e\u7535\u500d\u7387\u4e3a0.1 C\u65f6\uff0c G@HMCN\/S-G-5.0\u3001G@HMCN\/S-G-7.5\u3001G@HMCN\/S-G-10\u7684\u9762\u5bb9\u91cf\u968f\u5faa\u73af\u6b21\u6570\u7684\u53d8\u5316\u3002\u56fe\u4e2d\u5b9e\u5fc3\u548c\u7a7a\u5fc3\u5206\u522b\u8868\u793a\u653e\u7535\u5bb9\u91cf\u548c\u5145\u7535\u5bb9\u91cf\u3002<\/p>\n \u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n \u8fd9\u9879\u5de5\u4f5c\u9996\u6b21\u7528\u786c\u6a21\u677f\u6cd5\u5236\u5907\u51fa\u77f3\u58a8\u70ef@\u591a\u5b54\u78b3\u7684\u4e2d\u7a7a\u6838\u58f3\u7ed3\u6784\u7eb3\u7c73\u7247\uff0c\u5e76\u628a\u5b83\u4f5c\u4e3a\u9502\u786b\u7535\u6c60\u6b63\u6781\u3002\u8be5\u6b63\u6781\u5728\u9ad8\u8fbe10 mg cm-2<\/sup>\u7684\u786b\u8d1f\u8f7d\u91cf\u4e0b\u5448\u73b0\u51fa\u9ad8\u7684\u9762\u5bb9\u91cf\u3001\u4f18\u5f02\u7684\u500d\u7387\u6027\u80fd\u53ca\u5faa\u73af\u7a33\u5b9a\u6027\u3002\u8fd9\u4e3b\u8981\u5f97\u76ca\u4e8e\u8be5\u7ed3\u6784\u7684\u4ee5\u4e0b\u4f18\u52bf\uff1a(1)\u4e8c\u7ef4\u4e2d\u7a7a\u6838\u58f3\u7ed3\u6784\u4e0d\u4ec5\u5177\u6709\u4e2d\u7a7a\u7ed3\u6784\u7684\u4f18\u52bf\uff0c\u8fd8\u80fd\u51cf\u5c11\u8fc7\u591a\u7684\u7a7a\u95f4\uff1b(2) G@HMCN\u53ef\u4ee5\u8fbe\u5230\u9ad8\u7684\u786b\u8d1f\u8f7d\u91cf\uff0c\u5e76\u4f7f\u786b\u5747\u5300\u5206\u5e03\u800c\u4e0d\u53d1\u751f\u56e2\u805a\uff1b(3)G@HMCN\u4e2d\u7684\u542b\u6c2e\u53ca\u542b\u6c27\u7269\u79cd\u4e0e\u591a\u786b\u5316\u7269\u4e4b\u95f4\u5b58\u5728\u8f83\u5f3a\u7684\u5316\u5b66\u5438\u9644\u4f5c\u7528\uff0c\u80fd\u6709\u6548\u6291\u5236\u7a7f\u68ad\u6548\u5e94\uff0c\u4ece\u800c\u63d0\u9ad8\u8be5\u6b63\u6781\u7684\u957f\u5faa\u73af\u7a33\u5b9a\u6027\uff1b(4) \u77f3\u58a8\u70ef\u7684\u9ad8\u7535\u5bfc\u7387\u4fdd\u8bc1\u4e86\u6574\u4e2aG@HMCN\/S-G\u6b63\u6781\u4f53\u7cfb\u5177\u6709\u8f83\u597d\u7684\u5bfc\u7535\u6027\uff1b(5)\u7d27\u5bc6\u5806\u579b\u7684G@HMCN\/S-G\u5c42\u72b6\u7ed3\u6784\u7f29\u77ed\u4e86\u79bb\u5b50\u6269\u6563\u8ddd\u79bb\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u500d\u7387\u6027\u80fd\uff1b(6) \u7d27\u5bc6\u5806\u579b\u7684G@HMCN\/S-G\u5c42\u72b6\u7ed3\u6784\u63d0\u5347\u4e86\u9502\u786b\u7535\u6c60\u6b63\u6781\u7684\u4f53\u79ef\u6bd4\u5bb9\u91cf\u3002\u4f5c\u4e3a\u8d1f\u8f7d\u6d3b\u6027\u7269\u8d28\u7684\u9aa8\u67b6\uff0cG@HMCN\u5728\u9ad8\u6027\u80fd\u8d85\u7ea7\u7535\u5bb9\u5668\u3001\u7535\u50ac\u5316\u6750\u6599\u53ca\u67d4\u6027\u50a8\u80fd\u5668\u4ef6\u7684\u7814\u5236\u4e2d\u5177\u6709\u5de8\u5927\u7684\u6f5c\u529b\u3002<\/p>\n \u6587\u732e\u94fe\u63a5\uff1a<\/strong>Self-supporting sulfur cathodes enabled by two-dimensional carbon yolk-shell nanosheets for high-energy-density lithium-sulfur batteries <\/a>(Nat. Commun., 2017, DOI: 10.1038\/s41467-017-00575-8)<\/p>\n \u672c\u6587\u7531\u6750\u6599\u4eba\u7f16\u8f91\u90e8\u738b\u948a\u9896\u7f16\u8bd1\uff0c\u9ec4\u8d85\u5ba1\u6838\uff0c\u70b9\u6211\u52a0\u5165\u6750\u6599\u4eba\u7f16\u8f91\u90e8\u3002<\/a><\/p>\n<\/p>\n
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