{"id":148339,"date":"2018-08-03T08:00:15","date_gmt":"2018-08-03T00:00:15","guid":{"rendered":"\/\/m.iemloyee.com\/?p=148339"},"modified":"2018-08-03T08:30:58","modified_gmt":"2018-08-03T00:30:58","slug":"acs-nano%ef%bc%9a%e5%8c%96%e5%ad%a6%e6%9c%89%e5%ba%8f%e5%8e%9f%e5%ad%90%e5%8e%8b%e5%b1%82%e6%9d%90%e6%96%99i%e2%80%91max%e7%9a%84%e8%b5%b7%e6%ba%90%ef%bc%9a%e9%80%9a%e8%bf%87%e7%90%86%e8%ae%ba","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=148339","title":{"rendered":"ACS Nano\uff1a\u5316\u5b66\u6709\u5e8f\u539f\u5b50\u538b\u5c42\u6750\u6599(i\u2011MAX)\u7684\u8d77\u6e90\uff1a\u901a\u8fc7\u7406\u8bba\/\u5b9e\u9a8c\u65b9\u6848\u6269\u5c55\u5143\u7d20\u7a7a\u95f4"},"content":{"rendered":"

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

\u5229\u7528\u73b0\u4ee3\u8ba1\u7b97\u5de5\u5177\u53ef\u4ee5\u5f88\u5feb\u5730\u53d1\u73b0\u4e00\u4e9b\u4ee5\u524d\u672a\u77e5\u7684\u5316\u5408\u7269\uff0c\u540c\u65f6\uff0c\u7528\u7406\u8bba\u8ba1\u7b97\u53ef\u4ee5\u9884\u6d4b\u51fa\u4e00\u4e9b\u72ec\u7279\u7684\u6750\u6599\u6027\u80fd\uff0c\u5982\u5728\u91d1\u5c5e\u6709\u673a\u6846\u67b6\u4e2d\u7684\u5b58\u50a8\u5bb9\u91cf\u548c\u5177\u6709\u78c1\u6027\u7684MXene\u3002\u7136\u800c\uff0c\u5982\u679c\u6240\u5047\u5b9a\u7684\u6750\u6599\u65e0\u6cd5\u901a\u8fc7\u5b9e\u9a8c\u5236\u5907\u51fa\u6765\uff0c\u90a3\u4e48\u9884\u6d4b\u4e9a\u7a33\u6001\u751a\u81f3\u975e\u7a33\u6001\u6750\u6599\u7684\u90a3\u4e9b\u5177\u6709\u524d\u666f\u7684\u6027\u80fd\u4e5f\u662f\u5f92\u52b3\u3002\u76ee\u524d\uff0c\u51fa\u73b0\u4e86\u4e00\u79cd\u53ef\u4ee5\u907f\u514d\u8fd9\u79cd\u73b0\u8c61\u7684\u65b9\u6cd5\uff0c\u5373\u7b2c\u4e00\u6027\u539f\u7406\u8ba1\u7b97\uff0c\u5176\u4e0d\u4ec5\u53ef\u4ee5\u7814\u7a76\u6750\u6599\u7684\u7a33\u5b9a\u6027\u6307\u5bfc\u5b9e\u9a8c\uff0c\u8fd8\u53ef\u4ee5\u66f4\u597d\u5730\u7406\u89e3\u4e3a\u4ec0\u4e48\u67d0\u4e9b\u5143\u7d20\u7ec4\u5408\u80fd\u7528\u4e8e\u5236\u5907\u6750\u6599\uff0c\u67d0\u4e9b\u5143\u7d20\u4e0d\u80fd\u3002
\n MAX\u76f8\u662f\u4e00\u7c7b\u539f\u5b50\u5c42\u72b6\u9676\u74f7\u6750\u6599\uff0c\u5176\u7531\u524d\u8fc7\u6e21\u91d1\u5c5eM\u548cX\uff08\u78b3\u3001\u6c2e\u6216\u8005\u78b3\u6c2e\uff09\u6240\u7ec4\u6210\u7684Mn+1<\/sub>Xn<\/sub>\u5939\u5c42\u5728\u4e00\u4e2a\u539f\u5b50\u539a\u5ea6\u7684A\u5c42\u4e2d\u6240\u6784\u6210\uff0c\u901a\u5f0f\u4e3aMn+1<\/sub>AXn<\/sub>\uff08n=1-3\uff09\u3002\u800c\u901a\u8fc7\u5411\u4f20\u7edf\u7684\u4e09\u5143MAX\u76f8\u4e2d\u52a0\u5165\u7b2c\u56db\u79cd\u5143\u7d20\u53ef\u4ee5\u4f7f\u5176\u8c03\u6574\u6216\u6539\u53d8\u4e00\u4e9b\u6027\u80fd\uff0c\u751a\u81f3\u53ef\u4ee5\u62e5\u6709\u4ee5\u524d\u6240\u6ca1\u6709\u7684\u6027\u80fd\u3002\u53ef\u4ee5\u5728M\u3001A\u6216X\u7684\u5b50\u6676\u683c\u4e2d\u8fdb\u884c\u5408\u91d1\u5316\u4ee5\u4e30\u5bcc\u5176\u7ec4\u6210\u90e8\u5206\uff0c\u8fd9\u4e5f\u5305\u62ec\u5728\u4f20\u7edfMAX\u76f8\u4e2d\u672a\u5305\u542b\u7684\u5143\u7d20\u3002\u76ee\u524d\uff0c\u901a\u8fc7\u56fa\u6eb6\u5408\u91d1\u5316\u662f\u7814\u7a76\u8fd9\u7c7b\u6750\u6599\u7684\u4e3b\u8981\u9014\u5f84\uff0c\u800c\u5316\u5b66\u6709\u5e8f\u6001MAX\u76f8\u88ab\u79f0\u4e3ao-MAX\u76f8\uff0c\u5982Cr2<\/sub>TiAlC2<\/sub>\u7b49\uff0c\u5176\u5f62\u6210\u673a\u7406\u662f\u66ff\u4ee3M\u5c42\u7684\u9762\u5916\u5143\u7d20\uff0c\u4e14\u53ea\u57fa\u4e8e\u66ff\u6362M\u5143\u7d20\u3002\u6700\u8fd1\uff0c\u7814\u7a76\u4eba\u5458\u53d1\u73b0\u4e86\u53e6\u4e00\u7c7b\u5316\u5b66\u6709\u5e8fMAX\u76f8\u6750\u6599\uff08\u5177\u6709\u9762\u5185\u6392\u5e8f\uff09\uff0c\u53d6\u540di<\/em>-MAX\uff0c\u5982(Mo2\/3<\/sub>Sc1\/3<\/sub>)2<\/sub>AlC\u7b49\uff0c\u8fd9\u7c7b\u6750\u6599\u662f\u7531\u7a7a\u95f4\u7fa4C\/2c<\/em>\uff08#15\uff09\u548cCmcm<\/em>\uff08#63\uff09\u6240\u63cf\u8ff0\u7684\uff0c\u5e76\u4e14\u5177\u6709\u4eceM\u5c42\u5411A\u5c42\u5ef6\u4f38\u7684\u5c11\u6570M\u539f\u5b50\u7684\u7279\u6027\uff0c\u8fdb\u800c\u8868\u73b0\u51fa\u7c7b\u4f3c\u4e8eKagome\u0301\u7684\u6392\u5e8f\u7ed3\u679c\u3002\u91cd\u8981\u7684\u662f\uff0ci<\/em>-MAX\u76f8\u7684\u53d1\u73b0\u53ef\u4ee5\u5b9e\u73b0\u4e00\u7c7b\u6709\u5e8f\u7a7a\u4f4d\u7684MXenes\uff0c\u8fd9\u79cdMXenes\u5df2\u7ecf\u4e3a\u50a8\u80fd\u5e94\u7528\u5e26\u6765\u4e86\u5de8\u5927\u7684\u5e0c\u671b\u3002<\/p>\n

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

\u8fd1\u65e5\uff0c\u6797\u96ea\u5e73\u5927\u5b66\u7684Martin Dahlqvist\u548cJohanna Rosen\u6559\u6388\uff08\u5171\u540c\u901a\u8baf\u4f5c\u8005\uff09<\/strong>\u5728ACS Nano<\/strong>\u4e0a\u53d1\u8868\u9898\u4e3a\u201cOrigin of Chemically Ordered Atomic Laminates (i<\/em>\u2011MAX): Expanding the Elemental Space by a Theoretical\/Experimental Approach<\/strong>\u201d\u7684\u7814\u7a76\u8bba\u6587\uff0c\u7814\u7a76\u4eba\u5458\u5c06\u9884\u6d4b\u6027\u7684\u7b2c\u4e00\u6027\u539f\u7406\u8ba1\u7b97\u548c\u5b9e\u9a8c\u5408\u6210\u76f8\u7ed3\u5408\uff0c\u63a2\u7d22\u539f\u5b50\u5c42\u538b\u6750\u6599i<\/em>-MAX\u76f8\u5f62\u6210\u7684\u6839\u6e90\u3002\u901a\u8fc7\u63a2\u7d22(Mo2\/3<\/sub>M1\/3<\/sub>2<\/sup>)2<\/sub>AC\uff08\u5176\u4e2dM2<\/sup>=Sc\u3001Y\u548cA=Al\u3001Ga\u3001In\u3001Si\u3001Ge\u3001In\uff09\uff0c\u7814\u7a76\u4eba\u5458\u9884\u6d4b\u4e867\u79cd\u7a33\u5b9a\u7684i<\/em>-MAX\u76f8\uff0c\u5176\u4e2d5\u79cd\u53ef\u4ee5\u5728\u9ad8\u6e29\u4e0b\u4ecd\u4fdd\u6301\u5176\u7a33\u5b9a\u6027\u3002\u7814\u7a76\u8868\u660e\uff0c\u5f62\u6210i<\/em>-MAX\u76f8\u9700\u8981\u4e24\u79cd\u5c3a\u5bf8\u663e\u8457\u4e0d\u540c\u7684\u91d1\u5c5e\uff0c\u800c\u4e14A\u5143\u7d20\u8981\u4f18\u5148\u9009\u62e9\u5c3a\u5bf8\u8f83\u5c0f\u7684\u3002\u540c\u65f6\uff0c\u4e5f\u5e94\u8be5\u4f7f\u5316\u5408\u7269\u4e2d\u5b58\u5728\u7684\u53cd\u952e\u8f68\u9053\u6700\u5c11\uff0c\u6839\u636e\u8fd9\u79cd\u6307\u5bfc\u7b56\u7565\uff0c\u7814\u7a76\u4eba\u5458\u9884\u8ba1i<\/em>-MAX\u76f8\u7684\u5143\u7d20\u7a7a\u95f4\u4f1a\u6269\u5927\uff0c\u5e76\u4e14\u6709\u671b\u5408\u6210\u66f4\u4e30\u5bcc\u7684MAX\u76f8\u4f7f\u5176\u62e5\u6709\u5176\u66f4\u591a\u4e14\u6709\u7528\u7684\u6027\u80fd\u3002<\/p>\n

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

\u56fe\u4e00 i<\/em>-MAX\u76f8\u7684\u7406\u8bba\u7a33\u5b9a\u6027\u9884\u6d4b<\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09\u9762\u5185\u5316\u5b66\u6709\u5e8f\u7684(Mo2\/3<\/sub>Sc1\/3<\/sub>)2<\/sub>AC\u548c(Mo2\/3<\/sub>Y1\/3<\/sub>)2<\/sub>AC\u5728\u6b63\u4ea4\u6676\u7cfbCmcm<\/em>\u548c\u5355\u659c\u6676\u7cfbC2\/c<\/em>\u5468\u671f\u4e2d\u7684\u8ba1\u7b97\u5f62\u6210\u7113\u0394Hcp<\/sub><\/em>\uff0c\u5176\u4e2d\u7eff\u8272\u8868\u793a\u7a33\u5b9a\u800c\u7ea2\u8272\u8868\u793a\u975e\u7a33\u5b9a\u5019\u9009\u5143\u7d20\uff0c\u7c97\u4f53\u6570\u5b57\u8868\u793a\u6700\u4f4e\u80fd\u91cf\u7684\u7ed3\u6784<\/p>\n

\uff08b\uff09\u4e0e\u5316\u5b66\u6709\u5e8f\u7ed3\u6784\u76f8\u6bd4\uff0c\u65e0\u5e8f\u7ed3\u6784\u5728\u80fd\u91cf\u4e0a\u662f\u6709\u5229\u7684\uff0c\u56fe\u4e2d\u8868\u793a\u5bf9\u4e8e(Mo2\/3<\/sub>Sc1\/3<\/sub>)2<\/sub>AC\uff08\u7ea2\u65b9\u6846\uff09\u548c(Mo2\/3<\/sub>Y1\/3<\/sub>)2<\/sub>AC\uff08\u84dd\u5706\u5708\uff09\u5176\u4f30\u8ba1\u6e29\u5ea6Tdisorder<\/sub>\u4f5c\u4e3aA\u57fa\u56e2\u5143\u7d20\u7684\u51fd\u6570\u66f2\u7ebf\uff0c\u56fe\u4e2d\u7684\u865a\u7ebf\u8868\u793a\u5176\u7ecf\u5178\u7684\u672c\u4f53\u6750\u6599\u7684\u5408\u6210\u6e29\u5ea6\uff0c\u4e3a1773 K<\/p>\n

\u56fe\u4e8c \u9762\u5185\u5316\u5b66\u6709\u5e8f\u539f\u5b50\u538b\u5c42\u6750\u6599\u7684\u6d4b\u91cf\u548c\u6a21\u62dfXRD<\/strong><\/p>\n

\"\"<\/p>\n

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\uff08b\uff0cd\uff09\u8868\u793a\u5176\u6240\u5bf9\u5e94\u7684\u6a21\u62dfXRD\u56fe\u8c31
\n \u6a21\u62df\u6570\u636e\u662f\u57fa\u4e8e\u6b63\u4ea4Cmcm<\/em>\u5468\u671f\u7684\u5f1b\u8c6b\u7ed3\u6784\uff0c\u6d4b\u91cf\u548c\u8ba1\u7b97\u5cf0\u4e4b\u95f4\u7684\u5339\u914d\u7531\u84dd\u8272\u661f\u53f7\uff08*\uff09\u6765\u7d22\u5f15\uff0c\u800ci<\/em>-MAX\u76f8\u7684\u7ecf\u5178\u7684\u9762\u5185\uff08110\uff09\u5cf0\u7531\u7bad\u5934\u8868\u793a<\/p>\n

\u56fe\u4e09 \u9762\u5185\u5316\u5b66\u6709\u5e8f\u76f8(Mo2\/3<\/sub>Sc1\/3<\/sub>)2<\/sub>GaC\u7684HRSTEM\u56fe\u50cf\u548c\u793a\u610f\u56fe<\/strong><\/p>\n

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\uff08c\uff09\u6cbf\u7740[100]\u533a\u57df\u8f74<\/p>\n

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\u56fe\u56db \u9762\u5185\u5316\u5b66\u6709\u5e8f\u76f8(Mo2\/3<\/sub>Y1\/3<\/sub>)2<\/sub>GaC\u7684HRSTEM\u56fe\u50cf\u548c\u793a\u610f\u56fe<\/strong><\/p>\n

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\u56fe\u4e94 i<\/em>-MAX\u76f8\u7684\u5f62\u6210\u539f\u7406<\/strong><\/p>\n

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\uff08c\uff09(Mo2\/3<\/sub>Sc1\/3<\/sub>)2<\/sub>AC\uff08\u7ea2\u83f1\u5f62\uff09\u548c(Mo2\/3<\/sub>Y1\/3<\/sub>)2<\/sub>AC\uff08\u84dd\u4e09\u89d2\u5f62\uff09\u7ec4\u5206\u7684i<\/em>-MAX\u7ed3\u6784\u4e0eMAX\u76f8\u4e4b\u95f4\u7684\u8ba1\u7b97\u80fd\u91cf\u5dee\u0394E<\/em>\u4f5c\u4e3aA\u57fa\u56e2\u5143\u7d20\u7684\u51fd\u6570\u5173\u7cfb\u56fe\uff0c\u4f7f\u7528Vegard\u5b9a\u5f8b\u548c\u6765\u81ea\u677e\u5f1bMo2AC\u548cM2<\/sub>2<\/sup>AC\u7684\u7ed3\u6784\u4fe1\u606f\u83b7\u5f97\u7684\u5728i<\/em>-MAX\u7ec4\u5206\u4e2d\u7684MAX\u76f8\u7ed3\u6784\u7684\u6676\u683c\u53c2\u6570\u4e0e\u5185\u90e8\u5750\u6807<\/p>\n

\u56fe\u516d i<\/em>-MAX\u76f8\u7684\u603b\u6001\u5bc6\u5ea6\uff08DOS\uff09\u548c\u6295\u5f71\u6676\u4f53\u91cd\u53e0\u54c8\u5bc6\u987f\u7fa4\uff08pCOHP\uff09<\/strong><\/p>\n

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\n \u8ba1\u7b97\u603b\u7684\u548c\u539f\u5b50\u6001\u5bc6\u5ea6\u4ee5\u53capCOHP\u5206\u6790\uff1a\uff08c\uff0cd\uff09(Mo2\/3<\/sub>Sc1\/3<\/sub>)2<\/sub>GaC\uff0c\uff08e\uff0cf\uff09(Mo2\/3<\/sub>Y1\/3<\/sub>)2<\/sub>GaC\uff0c\u5176\u7ed3\u6784\u7531\u7a7a\u95f4\u7fa4Cmcm<\/em>\u7684\u6b63\u4ea4\u7ed3\u6784\u6240\u786e\u5b9a<\/p>\n

\u56fe\u4e03 \u9762\u5185\u5316\u5b66\u6709\u5e8f\u7684i<\/em>-MAX\u76f8\u7684\u8ba1\u7b97\u7ed3\u6784\u53c2\u6570\u4f5c\u4e3aA\u5143\u7d20\u7684\u51fd\u6570\u66f2\u7ebf<\/strong><\/p>\n

\"\"<\/p>\n

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\uff08f\uff0cg\uff09\u5206\u522b\u8868\u793a\uff08e\uff09\u4e2d\u6240\u8ba1\u7b97\u7684Mo-M2<\/sup>\u548cM2<\/sup>-A\u7684\u5c42\u95f4\u8ddd\u79bb<\/p>\n

\uff08h\uff09\u672c\u6587\u4e2d\u6240\u4f7f\u7528A\u65cf\u5143\u7d20\u7684\u91d1\u5c5e\u548c\u5171\u4ef7\u534a\u5f84<\/p>\n

\u56fe\u4e2d\u7684\u7ea2\u65b9\u6846\u4ee3\u8868(Mo2\/3<\/sub>Sc1\/3<\/sub>)2<\/sub>AC\uff0c\u84dd\u5706\u5708\u4ee3\u8868(Mo2\/3<\/sub>Y1\/3<\/sub>)2<\/sub>AC<\/p>\n

\u56fe\u516b \u6240\u5408\u6210\u7684i<\/em>-MAX\u76f8\u7684HRSTEM\u56fe\u50cf\u548c\u7ed3\u6784\u56fe\u793a<\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09(Mo2\/3<\/sub>Sc1\/3<\/sub>)2<\/sub>GaC\u6cbf\u7740[110]\u533a\u57df\u8f74\u7684HRSTEM\u56fe\u50cf\u548c\u793a\u610f\u56fe<\/p>\n

\uff08b\uff09(Mo2\/3<\/sub>Sc1\/3<\/sub>)2<\/sub>GaC\u6cbf\u7740[001]\u533a\u57df\u8f74\u7684Ga\u5c42\u7ed3\u6784\u56fe\u793a<\/p>\n

\uff08c\uff09(Mo2\/3<\/sub>Y1\/3<\/sub>)2<\/sub>GaC\u6cbf\u7740[110]\u533a\u57df\u8f74\u7684HRSTEM\u56fe\u50cf\u548c\u793a\u610f\u56fe<\/p>\n

\uff08d\uff09(Mo2\/3<\/sub>Y1\/3<\/sub>)2<\/sub>GaC\u6cbf\u7740[001]\u533a\u57df\u8f74\u7684Ga\u5c42\u7ed3\u6784\u56fe\u793a<\/p>\n

\uff08e\uff09Ga\u5c42\u5185\u7684\u952e\u89d2\u03b8i<\/sub><\/em><\/p>\n

\uff08f\uff09Ga\u539f\u5b50\u4e0e\u7406\u60f3Kagome\u0301\u6676\u683c\u4e4b\u95f4\u7684\u4f4d\u79fb\u8ddd\u79bb\uff0c\u5982\uff08b\uff0cd\uff09\u4e2d\u7684\u9ed1\u8272\u7bad\u5934\u6240\u793a<\/p>\n

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

\u672c\u6587\u901a\u8fc7\u7ed3\u5408\u7b2c\u4e00\u6027\u539f\u7406\u8ba1\u7b97\u548c\u6750\u6599\u5408\u6210\u63a2\u7d22\u4e86i<\/em>-MAX\u5f62\u6210\u7684\u8d77\u6e90\u3002\u5408\u6210\u7684(Mo2\/3<\/sub>Sc1\/3<\/sub>)2<\/sub>GaC\u548c(Mo2\/3<\/sub>Y1\/3<\/sub>)2<\/sub>GaC\u6750\u6599\u8bc1\u5b9e\u4e86\u7406\u8bba\u9884\u6d4b\uff0c\u5e76\u4e14\u4f7f\u7528STEM\u548cXRD\u8fdb\u884c\u7684\u7ed3\u6784\u8868\u5f81\u786e\u8ba4\u4e86M\u5c42\u5185\u7684\u9762\u5185\u5316\u5b66\u6709\u5e8f\u6027\u3001A\u5c42\u7684\u7c7bKagome\u0301\u6709\u5e8f\u6027\u4ee5\u53ca\u5177\u6709\u7a7a\u95f4\u7fa4Cmcm<\/em>\u7684\u6b63\u4ea4\u6676\u4f53\u7ed3\u6784\u3002\u540c\u65f6\uff0c\u7814\u7a76\u4eba\u5458\u5e0c\u671b\u80fd\u5728\u8fd9\u4e00\u5316\u5b66\u6709\u5e8f\u56db\u5143\u5c42\u538b\u6750\u6599\u7cfb\u5217\u4e2d\u5bf9M\u548cA\u4f4d\u7f6e\u4e0a\u8fdb\u884c\u8fdb\u4e00\u6b65\u7684\u5143\u7d20\u66ff\u6362\uff0c\u540c\u65f6\uff0c\u5df2\u7ecf\u5408\u6210\u51fa\u4e8644\u79cdi<\/em>-MAX\u76f8\u4e2d\u76849\u79cd\u6750\u6599\uff0c\u6beb\u65e0\u7591\u95ee\uff0c\u8fd9\u5c06\u6709\u52a9\u4e8e\u63a2\u7d22\u5176\u66f4\u6709\u5229\u7684\u6027\u80fd\u3002\u57fa\u4e8ei<\/em>-MAX\u76f8\u4f5c\u4e3a2D MXenes\u7684\u6bcd\u4f53\u6750\u6599\u8fd9\u4e00\u6027\u8d28\uff0c\u7814\u7a76\u4eba\u5458\u4e5f\u671f\u671b\u6269\u5927MXene\u6210\u5206\u8303\u56f4\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1aOrigin of Chemically Ordered Atomic Laminates (i<\/em>\u2011MAX): Expanding the Elemental Space by a Theoretical\/Experimental Approach<\/a><\/strong>\uff08ACS Nano, 2018, DOI: 10.1021\/acsnano.8b01774\uff09<\/p>\n

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