{"id":77533,"date":"2017-04-26T06:30:07","date_gmt":"2017-04-25T22:30:07","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=77533"},"modified":"2017-04-24T21:11:16","modified_gmt":"2017-04-24T13:11:16","slug":"%e5%ad%99%e7%8e%89%e5%88%9ascience%ef%bc%9a%e6%ba%b6%e6%b6%b2%e4%b8%ad%e7%ba%b3%e7%b1%b3%e7%b2%92%e5%ad%90%e8%83%b6%e4%bd%93%e6%b0%a7%e5%8c%96%e8%bf%87%e7%a8%8b%e7%9a%843d%e5%ae%9a%e9%87%8f%e5%bd%a2","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=77533","title":{"rendered":"\u5b59\u7389\u521aScience\uff1a\u6eb6\u6db2\u4e2d\u7eb3\u7c73\u7c92\u5b50\u80f6\u4f53\u6c27\u5316\u8fc7\u7a0b\u76843D\u5b9a\u91cf\u5f62\u6001\u6f14\u5316\u8868\u5f81"},"content":{"rendered":"<p><strong>\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n<p>\u4ece\u53e4\u81f3\u4eca\uff0c\u56fa\u4f53\u4e0e\u6db2\u4f53\u548c\u7a7a\u6c14\u7684\u63a5\u89e6\u5bfc\u81f4\u7684\u8150\u8680\u3001\u71c3\u70e7\u548c\u5206\u89e3\u73b0\u8c61\u5c31\u5f15\u8d77\u4e86\u4eba\u4eec\u6d53\u539a\u7684\u5174\u8da3\u3002\u5341\u4e5d\u4e16\u7eaa\uff0c\u4eba\u4eec\u610f\u8bc6\u5230\u8fd9\u4e9b\u73b0\u8c61\u548c\u5316\u5b66\u53cd\u5e94\u4e2d\u539f\u5b50\u7684\u91cd\u6392\u6709\u5173\u3002\u4ece\u90a3\u65f6\u5019\u5f00\u59cb\uff0c\u4eba\u4eec\u4fbf\u68a6\u60f3\u7740\u6709\u671d\u4e00\u65e5\u80fd\u770b\u89c1\u53cd\u5e94\u4e2d\u539f\u5b50\u5b9e\u65f6\u7684\u8fd0\u52a8\u4e0e\u91cd\u6392\u3002\u7136\u800c\u53d7\u5230\u6280\u672f\u9650\u5236\uff0c\u6211\u4eec\u4e00\u76f4\u65e0\u6cd5\u5b9e\u73b0\u8fd9\u4e2a\u68a6\u60f3\uff0c\u5373\u4f7f\u662f\u5728\u626b\u63cf\u7535\u5b50\u663e\u5fae\u955c(SEM)\u548c\u900f\u5c04\u7535\u5b50\u663e\u5fae\u955c(TEM)\u53d1\u660e\u4e4b\u540e\uff0c\u6211\u4eec\u4ecd\u4e0d\u80fd\u5b8c\u5168\u5728\u975e\u771f\u7a7a\u7684\u6eb6\u6db2\u73af\u5883\u4e0b\u5f97\u5230\u7eb3\u7c73\u7c92\u5b50\uff08NPs\uff09\u9ad8\u5206\u8fa8\u76843D\u7ed3\u6784\uff0c\u8fd9\u59cb\u7ec8\u56f0\u6270\u7740\u79d1\u5b66\u5bb6\u4eec\u3002<\/p>\n<p><strong>\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n<p>\u8fd1\u65e5\uff0c\u7f8e\u56fd<strong>\u5929\u666e\u5927\u5b66\u7684\u5b59\u7389\u521a\u6559\u6388<\/strong>\uff0c<strong>\u963f\u8d21\u56fd\u5bb6\u5b9e\u9a8c\u5ba4\u7684Zuo Xiaobing\u548cSubramanian K. R. S. Sankaranarayanan(\u5171\u540c\u901a\u8baf\u4f5c\u8005)<\/strong>\u5728Science\u4e0a\u53d1\u8868\u4e86\u4e00\u7bc7\u9898\u4e3a\u201cQuantitative 3D evolution of colloidal nanoparticle oxidation in solution\u201d\u7684\u6587\u7ae0\u3002\u4ed6\u4eec\u5229\u7528X\u5c04\u7ebf\u884d\u5c04\u548c\u5206\u5b50\u52a8\u529b\u5b66\u8ba1\u7b97\u6a21\u62df\u53bb\u8ddf\u8e2aFe\u7eb3\u7c73\u7c92\u5b50\u80f6\u4f53\u5728\u6c27\u5316\u8fc7\u7a0b\u4e2d\u4e9a\u7eb3\u7c73\u7ea7\u5206\u8fa8\u7387\u4e0b\u7684\u7ec4\u6210\u548c3D\u5f62\u6001\u6f14\u5316\u3002<\/p>\n<p><strong>[<\/strong><strong>\u81f4\u6b49\uff1a\u5f88\u62b1\u6b49\uff0c\u672a\u80fd\u627e\u5230\u901a\u8baf\u4f5c\u8005<\/strong><strong>Zuo Xiaobing<\/strong><strong>\u7684\u786e\u5207\u4e2d\u6587\u540d\u5b57\uff0c\u5c0f\u7f16\u8868\u793a\u8bda\u631a\u7684\u6b49\u610f\uff01<\/strong><strong>]<\/strong><\/p>\n<p><strong>\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n<p><strong>\u56fe1 Fe\u7eb3\u7c73\u7c92\u5b50\u6c27\u5316\u8fc7\u7a0b\u7684TEM\u8868\u5f81<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-77535 size-full\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2017\/04\/F1.large_-5.jpg\" alt=\"\" width=\"600\" height=\"605\" srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2017\/04\/F1.large_-5.jpg 600w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2017\/04\/F1.large_-5-150x150.jpg 150w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2017\/04\/F1.large_-5-298x300.jpg 298w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>A-G\uff1aFe\u7eb3\u7c73\u7c92\u5b50\u5728\u4e0d\u540c\u6c27\u5316\u9636\u6bb5\u7684TEM\u56fe\uff08\u6bd4\u4f8b\u5c3a\u4e3a10 nm\uff09\uff1bH\uff1a\u4e0d\u540c\u6c14\u6c1b\u4e0b\u7a0b\u5e8f\u5347\u6e29\u56fe\u3002<\/p>\n<p><strong>\u56fe<\/strong><strong>2 <\/strong><strong>\u539f\u4f4d\u65f6\u95f4\u5206\u8fa8\u5c0f\u89d2<\/strong><strong>X<\/strong><strong>\u5c04\u7ebf\u884d\u5c04<\/strong><strong>(small-angle x-ray scattering<\/strong><strong>\uff0c<\/strong><strong>SAXS)<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-77536 aligncenter\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2017\/04\/F2.large_-4-195x300.jpg\" alt=\"\" width=\"195\" height=\"300\" srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2017\/04\/F2.large_-4-195x300.jpg 195w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2017\/04\/F2.large_-4.jpg 600w\" sizes=\"(max-width: 195px) 100vw, 195px\" \/><\/p>\n<p>X\u5c04\u7ebf\u6ce2\u957f\u4e3a1.033 \u00c5\uff0c\u91c7\u8c31\u95f4\u9694\u4e3a5\u5206\u949f\uff0c\u9ed1\u7ebf\u4ee3\u8868\u53cd\u5e94\u6761\u4ef6\u7684\u6539\u53d8\u3002\u9ec4\u8272\u90e8\u5206\u8868\u793a\u8c31\u7ebf\u5b58\u5728\u56db\u7ea7\u6216\u4e94\u7ea7\u5cf0\uff0c \u8bf4\u660e\u521d\u59cb\u7a7a\u7f3a\u5f62\u6210\u3002<\/p>\n<p><strong>\u8bf4\u660e\uff1a<\/strong>\u7814\u7a76\u56e2\u961f\u5408\u6210\u4e86Fe\u7eb3\u7c73\u7c92\u5b50\u5e76\u5c06\u5176\u66b4\u9732\u5728\u7a7a\u6c14\u4e2d\u6c27\u5316\uff0c\u5982\u56feA\u3001B\u6240\u793a\uff0cFe\u7eb3\u7c73\u7c92\u5b50\u5f88\u5feb\u5c31\u5f62\u6210\u4e86Fe<sub>x<\/sub>O<sub>y<\/sub>\u4ee5\u9632\u8fdb\u4e00\u6b65\u88ab\u6c27\u5316\u3002\u5728\u5347\u6e29\u4ee5\u540e\uff0c\u7531\u4e8e\u67ef\u80af\u8fbe\u5c14\u6548\u5e94\uff0c\u5982\u56feC\u3001D\u548cE\u3001F\u6240\u793a\uff0cFe-Fe<sub>x<\/sub>O<sub>y<\/sub>\u7ed3\u6784\u8f6c\u5316\u6210Fe-\u7a7a\u7f3a-Fe<sub>x<\/sub>O<sub>y<\/sub>\u7ed3\u6784\u3002\u5728\u4e0d\u540c\u6c27\u5316\u9636\u6bb5\uff0cFe\u7eb3\u7c73\u7c92\u5b50\u7684\u7ed3\u6784\u4e0e\u7ec4\u6210\u6709\u5f88\u5927\u4e0d\u540c\uff0c\u5c24\u5176\u662f\u5185\u6838\u3001\u7a7a\u7f3a\u548c\u5916\u58f3\u7684\u539a\u5ea6\u548c\u7ed3\u6784\u7ec6\u8282\uff0c\u5bf9\u4e8e\u7814\u7a76Fe\u7eb3\u7c73\u7c92\u5b50\u5728\u6c27\u5316\u8fc7\u7a0b\u7684\u53cd\u5e94\u673a\u7406\u5c24\u4e3a\u91cd\u8981\u3002\u7136\u800c\u7531\u4e8eFe-Fe<sub>x<\/sub>O<sub>y<\/sub>\u5728TEM\u6d4b\u91cf\u4e2d\u957f\u65f6\u95f4\u66b4\u9732\u5728\u7535\u5b50\u6d41\u4e2d\u4e0d\u7a33\u5b9a\uff0c\u4e0d\u53ef\u80fd\u5f97\u5230\u5185\u6838\u3001\u7a7a\u7f3a\u548c\u5916\u58f3\u7684\u5728\u4e0d\u540c\u9636\u6bb5\u7684\u51c6\u786e\u7ed3\u6784\u3002\u56e0\u6b64\u7814\u7a76\u56e2\u961f\u91c7\u7528\u4e86\u539f\u4f4dSAXS\u6280\u672f\uff0c\u8be5\u6280\u672f\u5bf9\u7eb3\u7c73\u7c92\u5b50\u7684\u5927\u5c0f\u3001\u5f62\u6001\u548c\u7535\u5b50\u7ed3\u6784\u5341\u5206\u654f\u611f\uff0c\u80fd\u51c6\u786e\u5b9e\u65f6\u8ddf\u8e2a\u7eb3\u7c73\u7c92\u5b50\u7684\u6c27\u5316\u8fc7\u7a0b\uff0c\u7ed3\u5408\u5206\u5b50\u52a8\u529b\u5b66\u8ba1\u7b97\u548c\u5b9e\u9a8c\u6570\u636e\uff0c\u4ece\u800c\u6a21\u62df\u51fa\u7c92\u5b50\u76843D\u7ed3\u6784\u6f14\u5316\u3002<\/p>\n<p><strong>\u56fe<\/strong><strong>3 Fe-Fe<sub>x<\/sub>O<sub>y<\/sub><\/strong><strong>\u5728\u6c27\u5316\u8fc7\u7a0b\u4e2d<\/strong><strong>3D<\/strong><strong>\u7ed3\u6784\u7684\u6f14\u5316<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-77537 size-full\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2017\/04\/F3.large_-4.jpg\" alt=\"\" width=\"600\" height=\"305\" srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2017\/04\/F3.large_-4.jpg 600w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2017\/04\/F3.large_-4-300x153.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>A-D\uff1a\u5229\u7528SAXS\u6a21\u62df\u7c92\u5b50\u6c27\u5316\u8fc7\u7a0b\u4e2d\u7684\u7ed3\u6784\u53d8\u5316\uff0c\u7ea2\u8272\u7bad\u5934\u4ee3\u8868Fe\/Fe<sub>x<\/sub>O<sub>y<\/sub>\u754c\u9762\uff1b<\/p>\n<p>B\u548cC\u5206\u522b\u5f3a\u8c03\u4e86\u5355\u4e2a\u7a7a\u7f3a\u7684\u5206\u79bb(v1-v4)\u548c\u4e24\u4e2a\u7a7a\u7f3a\u7684\u76f8\u4e92\u4f5c\u7528(vv1\u548cvv3)\uff1b<\/p>\n<p>D\uff1a305\u5206\u949f\u540e\u7684\u7c92\u5b50\u7ed3\u6784\uff1b<\/p>\n<p>E\uff1a\u5927\u89c4\u6a21\u53cd\u5e94\u5206\u5b50\u52a8\u529b\u5b66\u6a21\u62df\u7684\u5feb\u7167\uff08\u6bd4\u4f8b\u5c3a\u4e3a5 nm\uff09\u3002<\/p>\n<p><strong>\u56fe<\/strong><strong>4 <\/strong><strong>\u6c27\u6c14\u5438\u6536\u52a8\u529b\u5b66\u7684\u5b9a\u91cf\u5206\u6790<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-77538 size-full\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2017\/04\/F4.large_-5.jpg\" alt=\"\" width=\"600\" height=\"437\" srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2017\/04\/F4.large_-5.jpg 600w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2017\/04\/F4.large_-5-300x219.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" 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6.5 min\uff09\u3002\u4e4b\u540e\u7531\u4e8e\u66f4\u591aFe\u5411\u5916\u6269\u6563\u5bfc\u81f4\u7a7a\u7f3a\u7684\u751f\u6210\uff0c\u5e76\u968f\u7740\u53cd\u5e94\u7684\u8fdb\u884c\u9010\u6e10\u53d8\u5927\uff0c\u8fd9\u65f6\u7684\u7a7a\u7f3a\u662f\u9ad8\u5ea6\u5206\u6563\u7684\uff0813 min-135 min\uff09\u3002\u4f46\u662f\u8fd9\u65f6\u7684\u7a7a\u7f3a\u5e76\u672a\u5b8c\u5168\u963b\u9694Fe\/Fe<sub>x<\/sub>O<sub>y<\/sub>\u754c\u9762\uff0c\u5f53\u5355\u4e2a\u7a7a\u7f3a\u8db3\u591f\u5927\u7684\u65f6\u5019\uff0c\u6bd7\u90bb\u7684\u7a7a\u7f3a\u8fde\u63a5\u5230\u4e00\u8d77\u5f62\u6210\u4e00\u4e2a\u65b0\u6708\u72b6\u7684\u5927\u7a7a\u7f3a\uff08195 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href=\"http:\/\/science.sciencemag.org\/content\/356\/6335\/303\" target=\"_blank\">Quantitative 3D evolution of colloidal nanoparticle oxidation in solution<\/a>\uff08Science,2017, DOI: 10.1126\/science.aaf6792\uff09<\/p>\n<p>\u672c\u6587\u7531\u6750\u6599\u4eba\u7f16\u8f91\u90e8<strong>\u7eb3\u7c73<\/strong>\u5c0f\u7ec4<strong>\u6db5\u4ed6\u54e5<\/strong>\u7f16\u8bd1\uff0c <a href=\"http:\/\/www.cailiaoniu.com\/25127.html\" target=\"_blank\">\u70b9\u6211\u52a0\u5165\u6750\u6599\u4eba\u7f16\u8f91\u90e8<\/a>\u3002<\/p>\n<p><strong>\u6750\u6599\u6d4b\u8bd5\uff0c\u6570\u636e\u5206\u6790\uff0c\u4e0a<\/strong><a href=\"http:\/\/www.ceshigu.com\/\" target=\"_blank\"><strong>\u6d4b\u8bd5\u8c37<\/strong><\/a><strong>\uff01<\/strong>\u00a0\u00a0\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3010\u5f15\u8a00\u3011 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