{"id":47912,"date":"2023-05-11T08:18:32","date_gmt":"2023-05-11T00:18:32","guid":{"rendered":"https:\/\/www.chemhui.com\/?p=47912"},"modified":"2023-04-25T10:19:28","modified_gmt":"2023-04-25T02:19:28","slug":"jacs%ef%bc%9a%e9%9d%9e%e6%99%b6%e6%80%81%e9%93%b1%e6%b0%a7%e6%b0%a2%e6%b0%a7%e5%8c%96%e7%89%a9%e7%9a%84%e9%94%82%e5%ae%9a%e5%90%91%e8%bd%ac%e5%8c%96%e7%94%a8%e4%ba%8e%e5%88%b6%e5%a4%87","status":"publish","type":"post","link":"http:\/\/www.chemhui.com\/jacs%ef%bc%9a%e9%9d%9e%e6%99%b6%e6%80%81%e9%93%b1%e6%b0%a7%e6%b0%a2%e6%b0%a7%e5%8c%96%e7%89%a9%e7%9a%84%e9%94%82%e5%ae%9a%e5%90%91%e8%bd%ac%e5%8c%96%e7%94%a8%e4%ba%8e%e5%88%b6%e5%a4%87\/","title":{"rendered":"\u200bJACS\uff1a\u975e\u6676\u6001\u94f1(\u6c27)\u6c22\u6c27\u5316\u7269\u7684\u9502\u5b9a\u5411\u8f6c\u5316\u7528\u4e8e\u5236\u5907\u9ad8\u6548\u6790\u6c27\u50ac\u5316\u5242"},"content":{"rendered":"

\u5927\u89c4\u6a21\u7535\u89e3\u6c34\u662f\u5236\u5907\u53ef\u518d\u751f\u80fd\u6e90\u7684\u5173\u952e\u6280\u672f\u3002\u7136\u800c\uff0c\u5728\u9178\u6027\u7535\u89e3\u8d28\u4e2d\uff0c\u6790\u6c27\u53cd\u5e94(OER)\u50ac\u5316\u5242\u901a\u5e38\u53d7\u5230\u9633\u6781\u7535\u4f4d\u4e0b\u4e0d\u7a33\u5b9a\u6027\u7684\u9650\u5236\u3002\u94f1\u6c27\u5316\u7269\u5728\u9178\u6027\u548c\u6c27\u5316\u6761\u4ef6\u4e0b\u5177\u6709\u8010\u8150\u8680\u6027\uff0c\u662f\u4e00\u79cd\u5f88\u6709\u524d\u9014\u7684\u50ac\u5316\u5242\u3002<\/p>\n

\u4e4b\u524d\u5404\u79cd\u5173\u4e8e\u5f62\u8c8c\u7684\u7814\u7a76\uff0c\u6700\u5927\u9650\u5ea6\u5730\u63d0\u9ad8\u4e86\u5bf9\u50ac\u5316\u5242\u7684\u6d3b\u6027\u548c\u50ac\u5316\u8fc7\u7a0b\u7684\u57fa\u672c\u7406\u89e3\u3002\u4f8b\u5982\uff0c\u5728OER\u6761\u4ef6\u4e0b\u7814\u7a76\u4e86\u91d1\u5c5e\u94f1\u7eb3\u7c73\u9897\u7c92\uff0c\u7ed3\u679c\u8868\u660e\u91d1\u5c5e\u94f1\u7eb3\u7c73\u9897\u7c92\u5f62\u6210\u4e86\u975e\u6676\u6001\u6c22\u6c27\u5316\u94f1(Ir(O)x<\/sub>(OH)y<\/sub>)\u5c42\uff0c\u8fd9\u662f\u50ac\u5316\u5242\u7684\u6d3b\u6027\u6765\u6e90\u3002\u66f4\u91cd\u8981\u7684\u662f\uff0c\u7814\u7a76\u8868\u660e\u66f4\u5c11\u7684Ir(O)x<\/sub>(OH)y<\/sub>\u80fd\u591f\u63d0\u4f9b\u5927\u91cf\u5177\u6709\u7ed3\u6784\u7075\u6d3b\u6027\u7684\u7f9f\u57fa\uff0c\u53ef\u4ee5\u4e3aO-O\u952e\u7684\u5f62\u6210\u63d0\u4f9b\u8def\u5f84\u3002<\/p>\n

\u57fa\u4e8e\u6b64\uff0c\u82f1\u56fd\u5df4\u65af\u5927\u5b66Simon J. Freakley\u7b49\u4eba<\/strong>\u9996\u6b21\u8868\u660e\uff0c\u4ece\u65e0\u5b9a\u5f62\u7684Ir(O)x<\/sub>(OH)y<\/sub>\u5f00\u59cb\uff0c\u5728\u70ed\u5904\u7406\u8fc7\u7a0b\u4e2d\uff0c\u901a\u8fc7\u5269\u4f59\u7684Li+<\/sup>\uff0c\u6709\u53ef\u80fd\u5f62\u6210\u91d1\u7ea2\u77f3\u6216Li\u63d2\u5c42\u7684\u6c27\u5316\u94f1\uff0c\u5e76\u4e14\u5c3d\u7ba1\u5728500\u00b0C\u4e0b\u5904\u7406\uff0c\u8fd9\u79cdLi\u63d2\u5c42\u7684\u6c27\u5316\u94f1\u4f9d\u65e7\u663e\u793a\u51fa\u4e0e\u975e\u6676\u6001\u6750\u6599\u76f8\u5f53\u7684\u6d3b\u6027\u548c\u66f4\u9ad8\u7684\u7a33\u5b9a\u6027\uff0c\u8fd9\u6253\u7834\u4e86\u70ed\u5904\u7406\u4e0eIr(O)x<\/sub>(OH)y<\/sub>\u5931\u6d3b\u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/p>\n

\"1\"<\/p>\n

\u5728\u6ca1\u6709\u4efb\u4f55\u6d3b\u5316\u5904\u7406\u7684\u60c5\u51b5\u4e0b\uff0c\u672c\u6587\u901a\u8fc7\u6781\u5316\u66f2\u7ebf(1.2-1.7 VRHE<\/sub>\uff0c5 mV s-1<\/sup>)\u8bc4\u4f30\u4e86IrOx<\/sub>\u3001r-IrO2<\/sub>\u548cLi-IrOx<\/sub>\u57280.1 M HClO4<\/sub>\u7535\u89e3\u8d28\u4e2d\u7684OER\u6027\u80fd\u3002r-IrO2<\/sub>\u3001Li-IrOx<\/sub>\u548cIrOx<\/sub>\u5206\u522b\u5728\u8fc7\u7535\u4f4d(\u03b7)\u4e3a390\u3001290\u548c270 mV\u65f6\u8fbe\u5230\u4e8610 mA cm-2<\/sup>\u7684\u7535\u6d41\u5bc6\u5ea6\u3002\u91cd\u8981\u7684\u662f\uff0c\u5c3d\u7ba1\u5728500\u2103\u5bf9\u50ac\u5316\u5242\u8fdb\u884c\u4e86\u70ed\u5904\u7406\uff0c\u5408\u6210\u7684Li-IrOx<\/sub>\u4ecd\u7136\u663e\u793a\u51fa\u4e0eIrOx<\/sub>\u548c\u8d2d\u4e70\u7684IrO2<\/sub>\u00b72HO\u76f8\u5f53\u7684\u6d3b\u6027\u3002\u6b64\u5916\uff0cIrOx<\/sub>(0.005 mF cm2<\/sup>)\u548cLi-IrOx<\/sub>(0.006 mF cm2<\/sup>)\u7684\u7535\u5316\u5b66\u6d3b\u6027\u8868\u9762\u79ef(ECSAs)\u4ee5\u53caIrOx<\/sub>(38 mV dec-1<\/sup>)\u548cLi-IrOx<\/sub>(39 mV dec-1<\/sup>)\u7684Tafel\u659c\u7387\u518d\u6b21\u8868\u660e\u5408\u6210\u7684\u50ac\u5316\u5242\u5177\u6709\u4f18\u5f02\u7684OER\u6027\u80fd\u3002<\/p>\n

\u7136\u800c\uff0cr-IrO2<\/sub>\u5177\u6709\u8f83\u9ad8\u7684Tafel\u659c\u7387(57 mV dec-1<\/sup>)\uff0c\u8fd9\u4e0e\u6587\u732e\u62a5\u9053\u7684(\u7ea660 mV dec-1<\/sup>)\u4e00\u81f4\uff0c\u8fd9\u8bf4\u660e\u5176\u52a8\u529b\u5b66\u8f83\u6162\u3002\u603b\u4e4b\uff0cLi-IrOx<\/sub>\u548cIrOx<\/sub>\u76f8\u4f3c\u7684\u8d77\u59cb\u7535\u4f4d\uff0c\u76f8\u4f3c\u7684ECSA\u548cTafel\u659c\u7387\u8868\u660e\uff0c\u5c42\u72b6\u7eb3\u7c73\u6676Li-IrOx<\/sub>\u5177\u6709\u4e0e\u975e\u6676IrOx<\/sub>\u76f8\u4f3c\u7684\u7535\u5316\u5b66\u6027\u80fd\uff0c\u5e76\u4f18\u4e8e\u5728\u76f8\u540c\u7684\u6e29\u5ea6\u4e0b\u70ed\u5904\u7406\u7684r-IrO2<\/sub>\uff0c\u8fd9\u4e5f\u660e\u786e\u8868\u660e\u5269\u4f59\u7684Li+<\/sup>\u53ef\u4ee5\u9632\u6b62\u975e\u6676IrOx<\/sub>\u7684\u70ed\u5931\u6d3b\u3002<\/p>\n

\"2\"<\/p>\n

\u7ed3\u5408\u672c\u6587\u7684\u6d4b\u8bd5\u548c\u8868\u5f81\u7ed3\u679c\u53ef\u4ee5\u53d1\u73b0\uff0c\u5177\u6709\u8f83\u9ad8\u7ed3\u5408\u80fd\u7684Ir\u7269\u8d28(IrOx<\/sub>\u548cLi-IrOx<\/sub>)\u4e0er-IrO2<\/sub>\u76f8\u6bd4\uff0c\u6709\u66f4\u591a\u7684\u6c27\u5316\u8fd8\u539f\u6d3b\u6027\u8868\u9762\u3002\u6b64\u5916\uff0c\u8fd9\u4e09\u79cd\u6750\u6599\u5728\u6781\u5316\u6761\u4ef6\u4e0b\u90fd\u7ecf\u5386\u4e86\u76f8\u4f3c\u7684\u6f14\u5316\uff0c\u4f46\u7a0b\u5ea6\u4e0d\u540c\uff0cOER\u673a\u5236\u6d89\u53caIr(V)\/\u03bc1<\/sub>-oxyl\u7684\u5f62\u6210\u4ee5\u53ca\u6c27\u7a7a\u4f4d\u7684\u4ea7\u751f\u3002\u4e0e\u4e4b\u524d\u7684\u5de5\u4f5c\u76f8\u4f3c\uff0c\u672c\u6587\u5047\u8bbe\u8fd9\u4e9bIr(V)\/\u03bc1<\/sub>-oxyl\u662f\u5728\u9633\u6781\u7535\u4f4d\u4e0b\u901a\u8fc7r-IrO2<\/sub>\u8868\u9762\u7684Ir-OH\u6216Li-IrOx<\/sub>\u548cIrOx<\/sub>\u4e0a\u7684Ir-O-Li\u7684\u8131\u8d28\u5b50\u548c\u6c27\u5316\u5f62\u6210\u7684\u3002\u7531\u4e8eIr(V)\/\u03bc1<\/sub>-oxyl\u7684\u4eb2\u7535\u7279\u6027\uff0c\u5b83\u4eec\u5bb9\u6613\u53d7\u5230\u90bb\u8fd1OH\u7684\u4eb2\u6838\u653b\u51fb\uff0c\u5f62\u6210\u4e2d\u95f4O-O\u952e\uff0c\u4ece\u800c\u5bfc\u81f4\u6c27\u5316\u548c\u7a7a\u4f4d\u7684\u5f62\u6210\u3002<\/p>\n

\u672c\u6587\u8fd8\u8ba4\u4e3a\uff0c\u5c42\u72b6Li-IrOx<\/sub>\u4f53\u7cfb\u7684\u5f02\u5e38\u7a33\u5b9a\u6027\u53ef\u4ee5\u89e3\u91ca\u4e3a\uff1a\u4e0a\u8ff0\u7684\u8f6c\u53d8\u5bf9\u4e8e\u5c42\u72b6\u7ed3\u6784\u6765\u8bf4\u662f\u5404\u5411\u5f02\u6027\u7684\uff0c\u5b83\u4fdd\u7559\u4e86Ir-oxo\u5c42\u7684\u7ed3\u6784\uff0c\u800c\u6c27\u57fa\u7269\u8d28\u662f\u7531\u8f83\u957f\u7684Ir-O\u952e\u5f62\u6210\u7684\u3002\u8f83\u957f\u7684Ir-O\u952e\u7684\u5b58\u5728\uff0c\u53ef\u80fd\u662f\u7531\u4e8eLi+<\/sup>\u7269\u8d28\u7684\u6781\u5316\u6548\u5e94\uff0c\u5bfc\u81f4\u5b83\u4eec\u4f18\u5148\u53c2\u4e0eO-O\u952e\u7684\u5f62\u6210\u3002\u8fd9\u4e9b\u6c27\u914d\u4f53\u53ef\u80fd\u5782\u76f4\u4e8e\u5404\u5c42\uff0c\u5e76\u4f4d\u4e8e\u4f18\u5148\u53d1\u751f\u6c27\u7ffb\u8f6c\u7684\u5c42\u95f4\u7a7a\u95f4\u5185\u3002\u76f8\u6bd4\u4e4b\u4e0b\uff0c\u5bf9\u4e8eIrOx<\/sub>\uff0c\u8fd9\u79cd\u8f6c\u53d8\u6d89\u53ca\u8f74\u5411\u7b49\u6c27\u7269\u8d28\uff0c\u6700\u7ec8\u5bfc\u81f4\u7ed3\u6784\u7684\u7834\u574f\u548cIr\u7269\u8d28\u7684\u6eb6\u89e3\uff0c\u4ece\u800c\u5bfc\u81f4\u6027\u80fd\u7684\u6076\u5316\u3002\u603b\u4e4b\uff0c\u672c\u6587\u4e0d\u4ec5\u63d0\u4f9b\u4e86\u7a33\u5b9a\u9ad8\u6d3b\u6027\u6750\u6599\u7684\u9014\u5f84\uff0c\u800c\u4e14\u8fd8\u63d0\u4f9b\u4e86\u8c03\u8282\u91d1\u5c5e\u6c27\u5316\u7269\u8868\u9762\u7535\u5b50\u6027\u8d28\u7684\u9014\u5f84\u3002\u672c\u6587\u5728\u8fd9\u91cc\u5c55\u793a\u7684\u5c42\u72b6\u7ed3\u6784\u50ac\u5316\u5242\uff0c\u4f7f\u4ee5\u540e\u7684\u7814\u7a76\u80fd\u591f\u66f4\u597d\u7684\u5e73\u8861\u6d3b\u6027\u548c\u7a33\u5b9a\u6027\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u4e5f\u6709\u52a9\u4e8e\u7a81\u7834OER\u6d3b\u6027\u7535\u50ac\u5316\u5242\u8bbe\u8ba1\u7684\u4e3b\u8981\u74f6\u9888\u3002<\/p>\n

\"9\"<\/p>\n

Lithium-Directed Transformation of Amorphous Iridium (Oxy)hydroxides To Produce Active Water Oxidation Catalysts,\u00a0Journal of the American Chemical Society<\/em><\/strong>,\u00a02023<\/strong>, DOI: 10.1021\/jacs.2c13567.<\/p>\n

https:\/\/doi.org\/10.1021\/jacs.2c13567.<\/p>\n","protected":false},"excerpt":{"rendered":"

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