{"id":9593,"date":"2016-04-23T22:00:53","date_gmt":"2016-04-23T14:00:53","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=9593"},"modified":"2016-04-23T22:54:18","modified_gmt":"2016-04-23T14:54:18","slug":"acs-nano%ef%bc%9a%e5%9c%a8%e5%a4%96%e5%bb%b6%e7%9f%b3%e5%a2%a8%e7%83%af%e4%b8%8a%e6%b0%b4%e5%88%86%e8%a7%a3%e4%ba%a7%e6%b0%a2%e7%9a%84%e6%9c%ba%e7%90%86%e6%8f%ad%e7%a7%98","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=9593","title":{"rendered":"ACS NANO\uff1a\u5728\u5916\u5ef6\u77f3\u58a8\u70ef\u4e0a\u6c34\u5206\u89e3\u4ea7\u6c22\u7684\u673a\u7406\u63ed\u79d8"},"content":{"rendered":"

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\u8fd1\u65e5\uff0cAntonio Politano \u7b49\u4eba\u5728ACS NANO\u4e0a\u53d1\u8868\u4e86\u4e00\u7bc7\u5173\u4e8e\u5916\u5ef6\u77f3\u58a8\u70ef\u6c34\u89e3\u6790\u6c22\u673a\u7406\u63a2\u7a76\u7684\u6587\u7ae0\uff0c\u8be6\u7ec6\u5730\u9610\u8ff0\u4e86\u77f3\u58a8\u70ef-\u8fc7\u6e21\u91d1\u5c5e\u754c\u9762\u4ea7\u751f\u548c\u50a8\u5b58\u6c22\u6c14\u7684\u673a\u7406\u3002<\/p>\n

\"\u56fe1\"<\/p>\n

\u56fe1. \u77f3\u58a8\u70ef\u5728\u5e72\u71e5\u548c\u6c34\u6d78\u6e7f\u4e24\u79cd\u6761\u4ef6\u4e0b\u7684XPS\u548c\u632f\u52a8\u63a2\u7a76\u3002(a) Gr\/Ni(111) \u7684C 1s\u4e2d\u5fc3\u5cf0\uff08\u4e0b\u65b9\uff09\u548cGr\/H2<\/sub>O\/Ni(111)\u7684C 1s \u4e2d\u5fc3\u5cf0\uff08\u4e0a\u65b9\uff09\uff0c\u5149\u5b50\u80fd\u91cf400 eV; (b) Gr\/H2<\/sub>O\/Ni(111)\u7684O 1s\u4e2d\u5fc3\u5cf0\uff0c\u5149\u5b50\u80fd\u91cf650 eV; (c) \u5316\u5b66\u952e\u80fd\u8c31\uff0c\u9ed1\u8272\u66f2\u7ebf\u4e3aGr\/Ni(111)\uff0c\u84dd\u8272\u4e3aGr\/H2<\/sub>O\/Ni(111)\uff0c\u5149\u5b50\u80fd\u91cf135 eV; (d) \u632f\u52a8\u5149\u8c31\uff0c\u901a\u8fc7\u9ad8\u5206\u8fa8\u7535\u5b50\u80fd\u91cf\u635f\u5931\u8c31(HREELS)\u5728\u955c\u9762\u6563\u5c04\u7684\u6761\u4ef6\u4e0b\u6d4b\u91cfGr\/Ni(111)\u548cGr\/H2<\/sub>O\/Ni(111)\u3002<\/p>\n

\u4ece (a) \u56fe\u4e2d\u53ef\u4ee5\u770b\u51faC0<\/sub>\u5cf0\u7684\u5f3a\u5ea6\u51cf\u5c0f\uff0cC1<\/sub>\u5cf0\u6d88\u5931\uff0c\u540c\u65f6\u5728284.08\u3001285.30\u3001284.31eV\u5904\u51fa\u73b0C3<\/sub>\u3001C4<\/sub>\u3001C5<\/sub>\u7684\u5cf0\uff0cC3<\/sub>\u3001C4<\/sub>\u662f\u5728Gr\/Ni(111)\u52a0\u6c22\u540e\u89c2\u6d4b\u5230\uff0cC5<\/sub>\u548c\u77f3\u58a8\u70ef\u5bf9\u63d2\u5c42\u6c34\u7684\u89e3\u8026\u4f5c\u7528\u6709\u5173\uff1b(b) \u56fe\u663e\u793a\u4e24\u4e2aO 1s\u7684\u5cf0\uff0c\u4e3b\u5cf0532.51(O1<\/sub>)\u548c\u7b2c\u4e8c\u7279\u5f81\u5cf0530.54(O2<\/sub>),\u7b2c\u4e00\u4e2a\u6765\u81ea\u672a\u89e3\u79bb\u7684\u6c34\uff0c\u7b2c\u4e8c\u4e2a\u6765\u81ea\u89e3\u79bb\u7684OH–<\/sup>; (c) Gr\/Ni(111)\u548cGr\/H2<\/sub>O\/Ni(111)\u7684\u7279\u5f81\u5cf0\u540c\u6837\u9a8c\u8bc1\u4e86\u6c34\u7684\u8bf1\u53d1\u6548\u679c; (d) \u663e\u793a\u4e86C-H\u7684\u5f2f\u66f2\u548c\u4f38\u5c55\u6a21\u578b\u5206\u522b\u5728179\u548c367 meV\u3002<\/p>\n

\"tu2\"<\/p>\n

\u56fe2. (a) Gr\/H2<\/sub>O\/Ni(111)\u7684C 1s\u5728\u5347\u6e29\u901f\u73870.4 K\/s\u5b9e\u65f6\u4fe1\u53f7,\uff1b(b) C 1s\u5404\u79cd\u6210\u5206\u7684\u5f3a\u5ea6\uff0c\u6bcf\u4e00\u4e2a\u5cf0\u5728\u56fe1a\u4e2d\u5df2\u7ecf\u6807\u51fa\uff0c\u5176\u4e2d\u5185\u56fe\u663e\u793aC 1s\u7684\u4fe1\u53f7\uff0cGr\/Ni(111)\uff08\u7070\u8272\uff09\u3001Gr\/H2<\/sub>O\/Ni(111)\uff08\u84dd\u8272\u66f2\u7ebf\uff09\uff0cGr\/Ni(111)\u52a0\u70ed\u5230442 K\uff08\u7ea2\u7ebf\uff09\uff1b(c) \u6c34\u6539\u6027\u7684Gr\/Ni(111)\u5728\u4e0d\u540c\u6e29\u5ea6\u9000\u706b\u4e0b\u7684\u632f\u52a8\u5149\u8c31\uff1b(d) 300\u5230700 K\u70ed\u5904\u7406\u6c34\u6d78\u6e7f\u7684Gr\/Ni(111)\u754c\u9762\uff0cO1s\u7684O1<\/sub>\u548cO2<\/sub>\u7684\u5f3a\u5ea6\u7684\u5b9e\u65f6\u8bb0\u5f55\u3002<\/p>\n

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\"tu3\"<\/p>\n

\u56fe3. \u6c34\u8bf1\u53d1\u7684\u77f3\u58a8\u70ef\/\u91d1\u5c5e\u7684\u5bc6\u5ea6\u6cdb\u51fd\u7406\u8bba\u6a21\u578b(DFT)\u3002\u6700\u4f73\u7684\u77f3\u58a8\u70ef\u539f\u5b50\u7ed3\u6784\uff08\u5de6\u5217\u6ca1\u6709\u7f3a\u9677\uff0c\u4e2d\u5fc3\u548c\u53f3\u9762\u6709\u7f3a\u9677\uff09\uff0c(a) Gr\/Ni(111)\uff1b(b)\u5939\u5c42\u6c34\u5206\u5b50\u5206\u89e3\u6210\u6c22\u96c6\u56e2\u4e0e\u954d\uff08\u57fa\u5e95\uff09\u952e\u548c\uff0c\u4ee5\u53ca\u6c22\u539f\u5b50\u4e0e\u77f3\u58a8\u70ef\u4ee5\u5171\u4ef7\u952e\u7ed3\u5408\uff1b\u4e00\u4e2a\u6c22\u539f\u5b50(c) \u548c\u4e24\u4e2a\u6c22\u539f\u5b50(d) \u4ece\u77f3\u58a8\u70ef\u5230\u91d1\u5c5e\u57fa\u5e95\u3002<\/p>\n

\u6839\u636e\u5bc6\u5ea6\u6cdb\u51fd\u7406\u8bba\u6587\u7ae0\u63d0\u51fa\u6c34\u5206\u5b50\u63d2\u5c42\u8fdb\u5165\u77f3\u58a8\u70ef\u548c\u91d1\u5c5e\u754c\u9762\uff0c\u5e76\u5728\u5185\u90e8\u53d1\u751f\u89e3\u79bb\u3002\u5176\u4e2d\uff0cGr\/Ni(111)\u7684\u5c42\u95f4\u6c34H+<\/sup>\u4e0e\u77f3\u58a8\u70ef\u952e\u548cOH–<\/sup>\u57fa\u56e2\u4e0e\u91d1\u5c5e\u57fa\u5e95\u7ed3\u5408\u3002<\/p>\n

\"tu4\"<\/p>\n

\u56fe4. (a) Gr\/Ni(111)\u548c(b) Ni(111)\u8868\u9762TPR\u5438\u6536\u5149\u8c31\uff1b(c) Ni(111) \u8868\u9762H2<\/sub>-dosed\u7406\u8bba\u53bb\u5438\u9644\u5149\u8c31\u3002<\/p>\n

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\u4e00\u53e5\u8bdd\u603b\u7ed3<\/strong><\/p>\n

\u672c\u6587\u4ee5Gr\/Ni(111)\u4e3a\u6a21\u578b\uff0c\u901a\u8fc7\u5c06\u5148\u8fdb\u7684\u5149\u8c31\u6280\u672f\u548c\u7406\u8bba\u76f8\u7ed3\u5408\uff0c\u7cfb\u7edf\u9610\u8ff0\u4e86\u5ba4\u6e29\u4e0b\u6c34\u6790\u6c22\u7684\u5404\u6b65\u53cd\u5e94\u673a\u7406\u3002\u6587\u7ae0\u6700\u540e\u63d0\u5230\uff0c\u77f3\u58a8\u70ef\/\u91d1\u5c5e\u754c\u9762\u7406\u8bba\u5728\u50ac\u5316\u9886\u57df\u548c\u76f8\u5173\u80fd\u6e90\u9886\u57df\u5177\u6709\u5f88\u5927\u4ef7\u503c\uff0c\u4f7f\u5f97\u672c\u6587\u5728\u6280\u672f\u9053\u8def\u4e0a\u5177\u6709\u91cc\u7a0b\u7891\u5f0f\u7684\u610f\u4e49\u3002<\/p>\n

\u672c\u6587\u4e8e2016\u5e74\u53d1\u8868\u5728ACS NANO\uff08IF=12.881\uff09\u4e0a\uff0c\u70b9\u6211\u4e0b\u8f7d<\/a>\u3002<\/p>\n

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