{"id":82804,"date":"2017-05-25T14:00:28","date_gmt":"2017-05-25T06:00:28","guid":{"rendered":"\/\/m.iemloyee.com\/?p=82804"},"modified":"2017-05-24T08:58:26","modified_gmt":"2017-05-24T00:58:26","slug":"nature%e5%ad%90%e5%88%8a%ef%bc%9a%e5%85%b7%e6%9c%89%e5%bf%ab%e9%80%9f%e6%b0%b4%e8%a7%a3%e5%8a%a8%e5%8a%9b%e5%ad%a6%e7%89%b9%e6%80%a7%e7%9a%84moni4%e7%94%b5%e5%82%ac%e5%8c%96%e5%89%82%e7%94%a8%e4%ba%8e","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=82804","title":{"rendered":"Nature\u5b50\u520a\uff1a\u5177\u6709\u5feb\u901f\u6c34\u89e3\u52a8\u529b\u5b66\u7279\u6027\u7684MoNi4\u7535\u50ac\u5316\u5242\u7528\u4e8e\u9ad8\u6548\u4ea7\u6c22"},"content":{"rendered":"

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

\u80fd\u6e90\u5371\u673a\u548c\u73af\u5883\u6c61\u67d3\u65e5\u76ca\u53d7\u5230\u4eba\u4eec\u7684\u5173\u6ce8\uff0c\u53d1\u5c55\u53ef\u518d\u751f\u80fd\u6e90\u6765\u4ee3\u66ff\u5316\u77f3\u8d44\u6e90\u53d8\u5f97\u5c24\u4e3a\u8feb\u5207\u3002\u6c22\u5206\u5b50\u56e0\u5176\u5177\u6709\u9ad8\u7684\u80fd\u91cf\u5bc6\u5ea6\u800c\u4e14\u71c3\u70e7\u4ea7\u7269\u5bf9\u73af\u5883\u65e0\u6c61\u67d3\uff0c\u4f5c\u4e3a\u4e00\u79cd\u6781\u597d\u7684\u80fd\u91cf\u8f7d\u4f53\uff0c\u662f\u7b26\u5408\u672a\u6765\u7684\u5168\u7403\u80fd\u6e90\u9700\u6c42\u7684\u3002\u5728\u4f17\u591a\u4ea7\u6c22\u7684\u65b9\u6cd5\u4e2d\uff0c\u7535\u89e3\u6c34\u4ea7\u6c22\uff08HER\uff09\u5bf9\u672a\u6765\u6c22\u80fd\u7ecf\u6d4e\u662f\u4e00\u79cd\u6700\u7ecf\u6d4e\uff0c\u6700\u6709\u6548\u7684\u9014\u5f84\u3002\u4e3a\u4e86\u63d0\u9ad8HER\u7684\u52a8\u529b\u5b66\uff0c\u7279\u522b\u662f\u5728\u78b1\u6027\u6eb6\u6db2\u4e2d\uff0c\u9ad8\u6d3b\u6027\uff0c\u9ad8\u7a33\u5b9a\u6027\u7684\u7535\u50ac\u5316\u5242\u5bf9\u4e8e\u964d\u4f4eHER\u52a8\u529b\u5b66\u8fc7\u7535\u4f4d\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u8d35\u91d1\u5c5e\u94c2\u5728\u76ee\u524d\u4ea7\u6c22\u6280\u672f\u4e2d\u5360\u636e\u7740\u4e3b\u4f53\u5730\u4f4d\uff0c\u4f8b\u5982\u6c34-\u78b1\u7535\u89e3\u6db2\u3002\u4f46\u662f\uff0c\u94c2\u7684\u4e0d\u8db3\u548c\u6602\u8d35\u7684\u4ef7\u683c\u4e25\u91cd\u5730\u9650\u5236\u4e86\u5b83\u5728\u7535\u89e3\u6c34\u9886\u57df\u7684\u5927\u89c4\u6a21\u5e94\u7528\u3002\u800c\u4e14\u5728\u5546\u4e1a\u7684\u6c34-\u78b1\u7535\u89e3\u6db2\u4e2d\uff0c\u94c2\u57fa\u7535\u50ac\u5316\u5242\u56e0\u5176\u8f83\u5dee\u7684\u6c34\u5206\u89e3\u52a8\u529b\u5b66\u7279\u6027\u800c\u5bfc\u81f4\u8f83\u5dee\u7684\u4ea7\u6c22\u6d3b\u6027\u3002<\/p>\n

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

\u8fd1\u65e5\uff0c\u6765\u81ea\u5fb7\u56fd\u5fb7\u7d2f\u65af\u987f\u5de5\u4e1a\u5927\u5b66\u7684\u51af\u65b0\u4eae\u6559\u6388<\/strong>\u7b49\u4eba\u5728Nature Commuications\u4e0a\u53d1\u6587\uff0c\u9898\u4e3a \u201cEfficient hydrogen production on MoNi4<\/sub> electrocatalysts with fast water dissociation kinetics\u201d . \u7814\u7a76\u4eba\u5458\u901a\u8fc7\u63a7\u5236\u9644\u5728\u6ce1\u6cab\u954d\u4e0a\u7684NiMoO4<\/sub>\u524d\u9a71\u4f53\u5728\u9000\u706b\u8fc7\u7a0b\u4e2d\u7684\u954d\u539f\u5b50\u7684\u5916\u90e8\u6269\u6563\uff0c\u5b9e\u73b0\u4e86\u5728MnO2<\/sub>\u7acb\u65b9\u4f53\u652f\u6491\u4e0b\u7684MoNi4<\/sub>\u7535\u50ac\u5316\u5242\u80fd\u591f\u5728\u6ce1\u6cab\u954d\u4e0a\u751f\u957f\uff08MoNi4<\/sub>\/MoO2<\/sub>@Ni\uff09\u3002\u800c\u4e14MoNi4<\/sub>\u7535\u50ac\u5316\u5242\u57281M\u7684\u6c22\u6c27\u5316\u94be\u7535\u89e3\u6db2\u4e2d\u5c55\u73b0\u51fa\u4e860\u8d77\u59cb\u7535\u4f4d\uff0c\u572810mA\/cm2<\/sup>\u7535\u6d41\u4e0b\u7684\u8fc7\u7535\u4f4d\u4e3a15mV, \u5854\u83f2\u5c14\u659c\u7387\u4e3a30mV\/decade\u3002\u8fd9\u4e2a\u7ed3\u679c\u5b8c\u5168\u53ef\u4ee5\u548c\u94c2\u4ee5\u53ca\u90a3\u4e9b\u6027\u80fd\u4f18\u5f02\u7684\u94c2\u57fa\u7535\u50ac\u5316\u5242\u76f8\u5ab2\u7f8e\uff0c\u52a0\u4e4b\u5176\u53ef\u5927\u89c4\u6a21\u5236\u5907\u7684\u65b9\u6cd5\u548c\u4f18\u5f02\u7684\u50ac\u5316\u7a33\u5b9a\u6027\uff0c\u4f7f\u5f97MoNi4<\/sub>\u7535\u50ac\u5316\u5242\u975e\u5e38\u6709\u5e0c\u671b\u5e94\u7528\u4e8e\u5b9e\u9645\u6c34-\u78b1\u7535\u89e3\u6db2\u4e2d\u5e94\u7528\u3002<\/p>\n

\u00a0<\/strong>\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/span><\/p>\n

\u56fe1 MnO2<\/sub>\u7acb\u65b9\u4f53\u652f\u6491\u4e0b\u7684MoNi4<\/sub>\u7535\u50ac\u5316\u5242\u5728\u6ce1\u6cab\u954d\u4e0a\u5408\u6210\u793a\u610f\u56fe<\/span><\/strong><\/p>\n

\"\"<\/p>\n

\u6bd4\u4f8b\u5c3a\uff0c\u6ce1\u6cab\u954d\uff08Ni foam\uff09\uff0c20mm (\u4e0a)\u548c1mm (\u4e0b)\uff1bNiMoO4<\/sub>\/ Ni foam\uff0c10mm (\u4e0a)\u548c2mm(\u4e0b)\uff1b MoNi4<\/sub>\/MoO2<\/sub>\/Ni foam, 20 mm (\u4e0a) \u548c1 mm (\u4e0b)\u3002<\/p>\n

\u56fe2 MoNi4<\/sub>\/MoO2<\/sub>@Ni\u7684\u5f62\u8c8c\u548c\u5316\u5b66\u6210\u5206\u5206\u6790<\/strong><\/span><\/p>\n

\"\"<\/p>\n

(a-c) MoNi4<\/sub>\/MoO2<\/sub>@Ni\u7684SEM\u56fe\u3002<\/p>\n

(d-f) MoNi4<\/sub>\/MoO2<\/sub>@Ni\u7684TEM\u56fe\u3002<\/p>\n

(g) MoNi4<\/sub>\u7535\u50ac\u5316\u5242\u548cMnO2<\/sub>\u7acb\u65b9\u4f53\u7684\u76f8\u5e94\u7684\u5143\u7d20\u56fe\u8c31\u3002<\/p>\n

\u6bd4\u4f8b\u5c3a\uff0c(a) 20mm; (b) 1 mm; (c) 100 nm; (d-f) 2 nm; d\u4e2d\u63d2\u56fe\uff0c11\/nm; (g) 20 nm.<\/p>\n

\u56fe3 \u4e0d\u540c\u50ac\u5316\u5242\u7684\u50ac\u5316\u6d3b\u6027\u7684\u6bd4\u8f83<\/span><\/strong><\/p>\n

\"\"<\/p>\n

(a) MoNi4<\/sub>\/MoO2<\/sub>@Ni\uff0c\u7eafNi\u7eb3\u7c73\u7247\u548cMoO2<\/sub>@Ni\u7684\u6781\u5316\u66f2\u7ebf\u3002<\/p>\n

(b) MoNi4<\/sub>\/MoO2<\/sub>@Ni\uff0c\u7eafNi\u7eb3\u7c73\u7247\u548cMoO2<\/sub>@Ni\u7684\u5854\u83f2\u5c14\u66f2\u7ebf\u3002<\/p>\n

(c) \u4e0e\u5176\u4ed6\u6027\u80fd\u4f18\u5f02\u7684HER\u7535\u50ac\u5316\u5242\u7684\u6bd4\u8f83\u3002<\/p>\n

(d) MoNi4<\/sub>\u7535\u50ac\u5316\u5242\u5728\u8fdb\u884c2000\u6b21\u5faa\u73af\u4f0f\u5b89\u524d\u540e\u7684\u6781\u5316\u66f2\u7ebf\uff1b\u63d2\u56fe\uff1aMoNi4<\/sub>\u7535\u50ac\u5316\u5242\u5728\u4e0d\u540c\u7535\u6d41\u4e0b\u7684\u957f\u65f6\u95f4\u7a33\u5b9a\u6027\u6d4b\u8bd5\uff1a10\uff1b100\uff1b\u548c200mA\/cm2<\/sup>.\u7535\u89e3\u6db2\uff1a1M KOH\u6c34\u6eb6\u6db2\uff1b\u626b\u901f\uff1a1mVs_<\/sup>1<\/sup>\u3002<\/p>\n

\u56fe4 \u5bc6\u5ea6\u6cdb\u51fd\u7406\u8bba\u8ba1\u7b97<\/span><\/strong><\/p>\n

\"\"<\/p>\n

(a) H2<\/sub>O\u5438\u9644\u81ea\u7531\u80fd\uff0c\u6d3b\u5316\u7684H2O\u5438\u9644\u81ea\u7531\u80fd\uff0c OH\u5438\u9644\u81ea\u7531\u80fd\u548cH\u5438\u9644\u81ea\u7531\u80fd\u7684\u8ba1\u7b97\u3002<\/p>\n

(b) Volmer \u6b65\u5438\u9644\u81ea\u7531\u80fd\u8ba1\u7b97\u56fe\u8868\u3002<\/p>\n

(c) Tafel \u6b65\u5438\u9644\u81ea\u7531\u80fd\u8ba1\u7b97\u56fe\u8868\u3002<\/p>\n

\u84dd\u8272\u7403\uff1a\u954d\uff1b\u6d45\u7eff\u8272\u7403\uff1a\u94bc\uff1b\u7ea2\u8272\u7403\uff1a\u6c27\u3002<\/p>\n

\u3010\u603b\u7ed3\u3011<\/strong><\/span><\/p>\n

\u672c\u6587\u62a5\u9053\u4e86\u4e00\u79cd\u5728MnO2<\/sub>\u7acb\u65b9\u4f53\u652f\u6491\u4e0b\u80fd\u591f\u5728\u6ce1\u6cab\u954d\u6216\u8005\u78b3\u5e03\u4e0a\u751f\u957f\u7684MoNi4<\/sub>\u7535\u50ac\u5316\u5242\u3002\u56e0\u4e3a\u5927\u5e45\u964d\u4f4e\u4e86Volmer\u6b65\u7684\u80fd\u91cf\u52bf\u5792\uff0cMoNi4<\/sub>\u7535\u50ac\u5316\u5242\u5728\u78b1\u6027\u6761\u4ef6\u4e0b\u5c55\u73b0\u4e86\u5f88\u9ad8\u7684HER\u6d3b\u6027\uff0c\u8fd9\u548c\u94c2\u4ee5\u53ca\u5df2\u7ecf\u62a5\u9053\u4e86\u7684\u6027\u80fd\u4f18\u5f02\u7684\u94c2\u57fa\u7535\u50ac\u5316\u5242\u76f8\u5ab2\u7f8e\u3002\u6b64\u5916\uff0c\u5927\u89c4\u6a21\u7684\u5236\u5907\u4ee5\u53ca\u51fa\u8272\u7684\u50ac\u5316\u7a33\u5b9a\u6027\u4f7f\u5f97MoNi4<\/sub>\/MoO2<\/sub>@Ni\u5728\u6c34-\u78b1\u7535\u89e3\u6db2\u4f53\u7cfb\u4e0b\u4ea7\u6c22\u6709\u7740\u975e\u5e38\u597d\u7684\u524d\u666f\u3002\u56e0\u6b64\uff0c\u5bf9MoNi4<\/sub>\u7535\u50ac\u5316\u5242\u7684\u63a2\u7d22\u548c\u8ba4\u77e5\uff0c\u7814\u7a76\u4eba\u5458\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5728\u65b0\u578b\u4ea7\u80fd\u5e94\u7528\u4e2d\u66ff\u4ee3\u94c2\u50ac\u5316\u5242\u7684\u65b9\u5411\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1a<\/strong>Efficient hydrogen production on MoNi4<\/sub> electrocatalysts with fast water dissociation kinetics <\/a>(Nature communications, 2017, DOI: 10.1038\/ncomms15437)<\/p>\n

\u672c\u6587\u7531\u6750\u6599\u4eba\u65b0\u80fd\u6e90\u5b66\u672f\u7ec4Z. Chen\u4f9b\u7a3f\uff0c\u6750\u6599\u725b\u6574\u7406\u7f16\u8f91\u3002<\/p>\n

\u6750\u6599\u725b\u7f51\u4e13\u6ce8\u4e8e\u8ddf\u8e2a\u6750\u6599\u9886\u57df\u79d1\u6280\u53ca\u884c\u4e1a\u8fdb\u5c55\uff0c\u8fd9\u91cc\u6c47\u96c6\u4e86\u5404\u5927\u9ad8\u6821\u7855\u535a\u751f\u3001\u4e00\u7ebf\u79d1\u7814\u4eba\u5458\u4ee5\u53ca\u884c\u4e1a\u4ece\u4e1a\u8005\uff0c\u5982\u679c\u60a8\u5bf9\u4e8e\u8ddf\u8e2a\u6750\u6599\u9886\u57df\u79d1\u6280\u8fdb\u5c55\uff0c\u89e3\u8bfb\u9ad8\u6c34\u5e73\u6587\u7ae0\u6216\u662f\u8bc4\u8ff0\u884c\u4e1a\u6709\u5174\u8da3\uff0c\u70b9\u6211\u52a0\u5165\u7f16\u8f91\u90e8<\/a>\u3002\u6750\u6599\u6d4b\u8bd5\uff0c\u6570\u636e\u5206\u6790\uff0c\u4e0a<\/strong>\u6d4b\u8bd5\u8c37<\/a>\uff01<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

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