\n <\/span><\/strong><\/em><\/p>\n<\/section>\n<\/section>\n \u8fd1\u65e5\uff0c\u5409\u6797\u5927\u5b66\u90b9\u6653\u65b0\u6559\u6388\u56e2\u961f\u62a5\u9053\u4e86\u4e00\u79cd\u6df7\u5408\u7194\u76d0\u8f85\u52a9\u65b9\u6cd5\uff0c\u5e76\u5236\u5907\u4e86\u9ad8\u5b54\u9699\u7387\uff0874%\uff09\u7684\u5c42\u72b6\u7ed3\u6784\u6c27\u5316\u94f1\u50ac\u5316\u5242\u3002\u8be5\u5c42\u72b6\u7ed3\u6784\u6750\u6599\u7684\u8fb9\u7f18\u94f1\u4f4d\u70b9\u662f\u9ad8\u6d3b\u6027\u6790\u6c27\u50ac\u5316\u4f4d\u70b9\uff0c\u50ac\u5316\u8fc7\u7a0b\u4e2d\u7ecf\u5386\u8868\u9762\u6676\u683c\u7f9f\u57fa\u53c2\u4e0e\u7684\u975e\u4f20\u7edf\u5438\u9644\u6f14\u5316\u673a\u5236\u3002\u9ad8\u5ea6\u591a\u5b54\u5316\u7684\u7eb3\u7c73\u7ed3\u6784\u5145\u5206\u66b4\u9732\u4e86\u9ad8\u6d3b\u6027\u7684\u8fb9\u7f18\u94f1\u4f4d\u70b9\uff0c\u534f\u540c\u4f18\u5316\u4e86\u50ac\u5316\u5c42\u7684\u4f20\u8d28\u3001\u4f20\u8377\u548c\u50ac\u5316\u6d3b\u6027\u3002\u7528\u5176\u5236\u5907\u7684\u819c\u7535\u6781\u50ac\u5316\u5c42\u7684\u94f1\u8f7d\u91cf\u964d\u81f30.56 mg\/cm2<\/sup>\uff0c\u540c\u65f6\u819c\u7535\u6781\u5728\u8d28\u5b50\u4ea4\u6362\u819c\u7535\u89e3\u69fd\u4e2d\u50ac\u5316\u6027\u80fd\u8fbe\u52302.0\u00a0<\/span><\/span><\/strong><\/strong>V@3.6\u00a0<\/strong>A\/cm2<\/sup>@80o<\/sup>C\uff08Nafion 115\u819c\uff09\uff0c\u7a33\u5b9a\u6027\u8d85\u8fc72000 h<\/strong>\u3002<\/strong><\/p>\n <\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n \n<\/section>\n \u80cc\u666f\u4ecb\u7ecd\uff1a<\/strong><\/p>\n <\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n \u8d28\u5b50\u4ea4\u6362\u819c\u7535\u89e3\u6c34\u5236\u6c22\u6280\u672f(<\/span>PEMWE<\/span>)<\/span>\u5177\u6709\u8f6c\u6362\u6548\u7387\u9ad8\u3001\u7535\u6d41\u5bc6\u5ea6\u5927\u3001\u6c22\u7eaf\u5ea6\u9ad8\u548c\u5bf9\u95f4\u6b47\u6027\u53ef\u518d\u751f\u7535\u529b\u54cd\u5e94\u5feb\u7b49\u4f18\u70b9\uff0c\u88ab\u89c6\u4e3a\u7406\u60f3\u7684\u7eff\u8272\u5236\u6c22\u6280\u672f\u3002\u76ee\u524d\u5546\u7528PEM\u7535\u89e3\u69fd\u6790\u6c27\u50ac\u5316\u5242\u662f\u6c27\u5316\u94f1\u7eb3\u7c73\u9897\u7c92\uff0c\u819c\u7535\u6781\u94f1\u8f7d\u91cf\u901a\u5e38\u9ad8\u8fbe<\/span>2-4 mg\/cm2<\/sup><\/span>\u3002\u7531\u4e8e<\/span>\u94f1\u8d44\u6e90\u6781\u5176\u532e\u4e4f\u4e14\u4ef7\u683c\u9ad8\u6602\uff0c\u4e3a\u4e86\u5b9e\u73b0PEMWE\u7684\u5927\u89c4\u6a21\u5e94\u7528\uff0c\u4e9f\u9700\u5f00\u53d1\u65b0\u4e00\u4ee3\u9633\u6781\u50ac\u5316\u5242\u6765\u51cf\u5c11\u819c\u7535\u6781\u4e2d\u94f1\u7684\u7528\u91cf\u3002\u8bb8\u591a\u56fd\u5bb6\u5df2\u5236\u5b9a\u660e\u786e\u7684\u65f6\u95f4\u8868\u548c\u8def\u7ebf\u56fe\uff0c\u81f4\u529b\u4e8e\u5927\u5e45\u5ea6\u964d\u4f4e\u94f1\u7528\u91cf\u3002\u5728\u8fc7\u53bb\u51e0\u5e74\u91cc\uff0c\u7814\u7a76\u4eba\u5458\u5f00\u53d1\u4e86\u5927\u91cf\u65b0\u578b\u94f1\u57fa\u50ac\u5316\u5242\uff0c\u5305\u62ec\u94f1\u57fa\u590d\u5408\u6c27\u5316\u7269\u3001\u5408\u91d1\u548c\u8d1f\u8f7d\u578b\u94f1\u50ac\u5316\u5242\u7b49\uff0c\u5177\u6709\u6bd4\u6c27\u5316\u94f1\u66f4\u9ad8\u7684\u672c\u5f81\u6d3b\u6027\u3002\u7136\u800c\uff0c\u7edd\u5927\u90e8\u5206\u94f1\u57fa\u50ac\u5316\u5242\uff0c\u7531\u4e8e\u5b58\u5728\u79bb\u5b50\u8131\u6eb6\u3001\u7a33\u5b9a\u6027\u5dee\u6216\u5bfc\u7535\u6027\u5dee\u7b49\u95ee\u9898\uff0c\u65e0\u6cd5\u5728PEMWE\u9633\u6781\u50ac\u5316\u5c42\u4e2d\u5b9e\u9645\u5e94\u7528\u3002\u5373\u4f7f\u6709\u5c11\u6570\u94f1\u57fa\u50ac\u5316\u5242\u96c6\u6210\u5728PEMWE\u9633\u6781\u50ac\u5316\u5c42\u4e2d\u5f00\u5c55\u4e86\u5e94\u7528\u7814\u7a76\uff0c\u5b83\u4eec\u4e5f\u96be\u4ee5\u517c\u987e\u9ad8\u6d3b\u6027\u3001\u957f\u5bff\u547d\u3001\u4f4e\u94f1\u8f7d\u91cf\u819c\u7535\u6781\u7684\u8981\u6c42\u3002\u56e0\u6b64\uff0c\u53d1\u5c55\u65b0\u4e00\u4ee3\u517c\u5177\u9ad8\u6d3b\u6027\u548c\u9ad8\u7a33\u5b9a\u6027\u7684PEMWE\u94f1\u57fa\u6790\u6c27\u50ac\u5316\u5242\u81f3\u5173\u91cd\u8981<\/span>\u3002<\/span><\/p>\n \n \u672c\u6587\u4eae\u70b9\uff1a<\/strong><\/span><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n \uff081\uff09\u6df7\u5408\u7194\u76d0\u8f85\u52a9\u65b9\u6cd5\u5236\u5907\u591a\u5b54\u5c42\u72b6\u6c27\u5316\u94f1<\/span><\/strong><\/p>\n \u901a\u8fc7IrCl3<\/sub>\u4e0e\u6df7\u5408\u7194\u878d\u76d0\uff08NaNO3<\/sub>\u548cKOH\uff09\uff0c\u5728\u4f4e\u6e29\uff08550o<\/sup>C\uff09\u4e0b\u6210\u529f\u5408\u6210\u4e86\u5c42\u72b6\u7ed3\u6784\u94f1\u9178\u76d0Ax<\/sub>IrO2<\/sub> (A = K\/Na)\uff1b\u8fdb\u4e00\u6b65\u7684\u9178\u5904\u7406\uff0c\u5c42\u95f4A+<\/sup>\u4e0eH+<\/sup>\u5b8c\u5168\u4ea4\u6362\uff0c\u5f62\u6210\u5bcc\u7f9f\u57fa\u7684\u591a\u5b54\u5c42\u72b6IrO2<\/sub>\uff08\u56fe1\uff0cp<\/em>-L-IrO2<\/sub>\uff09\u3002\u5728\u5408\u6210\u8fc7\u7a0b\u4e2d\uff0c\u7194\u878d\u76d0\u4e3b\u8981\u6709\u4e24\u4e2a\u4f5c\u7528\uff1a\uff08i\uff09\u53c2\u4e0e\u6784\u5efa\u5c42\u72b6AxIrO2<\/sub>\uff1b\uff08ii\uff09\u4f5c\u4e3a\u6a21\u677f\u5242\uff0c\u6784\u7b51\u5b54\u7ed3\u6784\u3002\u538b\u6c5e\u6d4b\u8bd5\u8868\u660e\uff0c\u8be5\u6750\u6599\u7684\u5b54\u9699\u7387\u9ad8\u8fbe74%\u3002<\/span><\/p>\n <\/span><\/p>\n \u56fe1. <\/span><\/strong>\u5408\u6210p<\/em>-L-IrO2<\/sub>\u7684\u6d41\u7a0b\u793a\u610f\u56fe\u3002<\/span><\/p>\n \n TEM<\/span>\u56fe\u7247\uff08\u56fe2a-c\uff09\u663e\u793ap<\/em>-L-IrO2<\/sub>\u5177\u6709\u591a\u5b54\u5f62\u8c8c\u548c\u4e30\u5bcc\u7684\u5b54\u9053\u7ed3\u6784\u3002TEM\u4e09\u7ef4\u91cd\u6784\u6280\u672f\u5bf9<\/span>p<\/span><\/em>-L-IrO2<\/sub><\/span>\u7684\u5185\u90e8\u591a\u5b54\u7ed3\u6784\u8fdb\u884c\u4e86\u6210\u50cf\u5206\u6790\uff08\u56fe2d\uff09\uff0c\u8bc1\u660e\u4e86\u5b54\u9699\u7eb3\u7c73\u7f51\u7edc\u7684\u9ad8\u8fde\u901a\u6027\u3002\u6b64\u5916\uff0c\u4e09\u7ef4\u91cd\u6784\u6a21\u578b\u6cbfz\u8f74\u7684\u4e09\u4e2a\u622a\u9762\u56fe\uff08\u56fe2e\uff09\u8fdb\u4e00\u6b65\u8bc1\u660e\u9ad8\u5b54\u7eb3\u7c73\u7f51\u7edc\u5206\u5e03\u5728\u6574\u4e2a\u6750\u6599\u4e2d\u3002<\/span><\/p>\n <\/span><\/p>\n \u56fe2. <\/span><\/strong>p<\/span><\/em>-L-IrO2<\/sub><\/span>\u7684\u591a\u5b54\u5f62\u8c8c\u8868\u5f81\u3002<\/span><\/p>\n \n \uff082\uff09\u8fb9\u7f18\u94f1\u4f4d\u70b9\u662f\u9ad8\u6d3b\u6027\u6790\u6c27\u50ac\u5316\u4f4d\u70b9<\/span><\/strong><\/p>\n \u5bf9<\/span>p<\/span><\/em>-L-IrO2<\/sub><\/span>\u7684\u6790\u6c27\u6d3b\u6027\u8fdb\u884c\u4e86\u8bc4\u4f30\uff0c\u5176\u8868\u89c2\u6d3b\u6027\u548c\u672c\u5f81\u6d3b\u6027\uff08\u7535\u8377\u5f52\u4e00\u5316\uff09\u90fd\u4f18\u4e8e<\/span>\u91d1\u7ea2\u77f3IrO2<\/sub>\uff08\u56fe3a, b\uff09\u3002\u7406\u8bba\u8ba1\u7b97\u7ed3\u6784\u8868\u660e\uff0cp<\/em>-L-IrO2<\/sub>\u7684\u5c42\u677f\u8fb9\u7f18\u94f1\u4f4d\u70b9\u8868\u73b0\u51fa\u4f18\u5f02\u7684OER\u6027\u80fd\uff0c\u63a5\u8fd1\u706b\u5c71\u66f2\u7ebf\u7684\u9876\u7aef\uff0c\u800c\u5c42\u677f\u5185\u7684\u94f1\u4f4d\u70b9\u662f\u50ac\u5316\u60f0\u6027\u7684(\u56fe3c-e)\u3002<\/span><\/p>\n \n \u50ac\u5316\u8fc7\u7a0b\u4e2d\u7684\u539f\u4f4d\u94f1\u5143\u7d20\u8131\u6eb6\u5206\u6790\uff08\u56fe3f\uff09\u8bc1\u660e\uff0cp<\/em>-L-IrO2<\/sub>\u548c<\/span>n<\/span><\/em>-L-IrO2<\/sub><\/span>\u7684\u94f1\u6eb6\u51fa\u91cf\u7ea6\u4e3a0.04%\uff0c\u8fdc\u4f4e\u4e8e\u91d1\u7ea2\u77f3IrO2<\/sub>\uff080.2-0.3%\uff09\u3002p<\/em>-L-IrO2<\/sub>\u7684S-number\uff088.1 x 104<\/sup>\uff09\u662f\u91d1\u7ea2\u77f3 IrO2<\/sub>\uff089.3 x 103<\/sup>\uff09\u76848.6\u500d\u3002\u7ed3\u5408\u50ac\u5316\u540e\u7684XRD\u3001TEM\u3001EXAFS\u548cXPS\u7b49\u8868\u5f81\u7ed3\u679c\uff0c\u8bc1\u660e\u4e86p<\/em>-L-IrO2<\/sub>\u5177\u6709\u4f18\u5f02\u7684\u7ed3\u6784\u7a33\u5b9a\u6027\u3002<\/span><\/p>\n <\/span><\/p>\n \u56fe3. <\/span><\/strong>\u6790\u6c27\u50ac\u5316\u6d3b\u6027\u548c\u7a33\u5b9a\u6027\u7814\u7a76\u3002<\/span><\/p>\n \n \uff083\uff09<\/span><\/strong>\u7ed3\u6784\u7f9f\u57fa\u53c2\u4e0e\u7684\u975e\u4f20\u7edf\u5438\u9644\u6f14\u5316\u673a\u5236<\/span><\/strong><\/p>\n \u4e3a\u4e86\u6df1\u5165\u7406\u89e3<\/span>p<\/span><\/em>-L-IrO2<\/sub><\/span>\u7684OER\u673a\u7406\uff0c\u6211\u4eec\u5bf9\u5176\u8fdb\u884c\u4e86pH\u4f9d\u8d56\u6027\u3001\u539f\u4f4d\u5dee\u5206\u7535\u5316\u5b66\u8d28\u8c31\u3001\u539f\u4f4d\u62c9\u66fc\u5149\u8c31\u7b49\u8868\u5f81\u3002\u6211\u4eec\u53d1\u73b0\uff0c<\/span>p<\/span><\/em>-L-IrO2<\/sub><\/span>\u7684\u8fb9\u7f18\u94f1\u4f4d\u70b9\u662f\u7f9f\u57fa\u8986\u76d6\u3002\u4e0e\u4f20\u7edfAEM\u8def\u5f84\u7684\u4e0d\u540c:<\/span>p<\/span><\/em>-L-IrO2<\/sub><\/span>\u5728\u50ac\u5316\u8fc7\u7a0b\u4e2d\u7ed3\u6784\u7f9f\u57fa\u53c2\u4e0e(<\/span>i<\/span>)<\/span>\u8868\u9762\u7f9f\u57fa\u53bb\u8d28\u5b50\u5316(<\/span>Ir-OH \u2192 Ir-O+ H+<\/sup> +e-<\/sup><\/span>)<\/span>\u662f\u8d77\u59cb\u6b65\u9aa4\uff0c\u800c\u4e0d\u662f\u4f20\u7edf\u7684<\/span>Ir + H2<\/sub>O \u2192 Ir-OH +H+ <\/sup>+ e-<\/sup><\/span>;(2)<\/span>\u7f9f\u57fa\u53c2\u4e0e\u6790\u6c27\u53cd\u5e94\u5faa\u73af\u3002<\/span><\/p>\n <\/span><\/p>\n \u56fe4. <\/span><\/strong>p<\/span><\/em>-L-IrO2<\/sub><\/span>\u6790\u6c27\u673a\u7406\u7814\u7a76\u3002<\/span><\/p>\n \n \u00a0<\/span>\uff084\uff09<\/span><\/strong>\u4f4e\u94f1\u8f7d\u91cf\u819c\u7535\u6781\u5b9e\u73b0\u4f18\u5f02\u7535\u89e3\u69fd\u6027\u80fd<\/span><\/strong><\/p>\n \u4ee5p<\/em>-L-IrO2<\/sub>\u4e3a\u9633\u6781\u50ac\u5316\u5242(0.56 mgIr<\/sub> cm-2<\/sup>)\u3001\u5546\u4e1aPt\/C(0.20 mgPt <\/sub>cm-2<\/sup>)\u4e3a\u9634\u6781\u50ac\u5316\u5242\u5236\u5907\u819c\u7535\u6781\uff0c\u5728PEM\u7535\u89e3\u69fd\u4e2d\u8bc4\u4f30\u5176\u5b9e\u9645\u5e94\u7528\u6f5c\u529b(\u56fe5)\u3002\u5728\u8f83\u4f4e\u7684\u8d35\u91d1\u5c5e\u8f7d\u91cf\u4e0b\uff0cPEM\u7535\u89e3\u69fd\u6027\u80fd\u8fbe\u52303.6 A cm-2<\/sup>@ 2.0 V\uff0c\u8d85\u8fc7\u4e86\u6587\u732e\u62a5\u9053\u7684\u5927\u591a\u6570\u94f1\u57fa\u50ac\u5316\u5242\u3002\u6b64\u5916\uff0c\u7535\u89e3\u69fd\u7a33\u5b9a\u8fd0\u884c2300 h(1.0 A cm-2<\/sup>)\uff0c\u7535\u538b\u8870\u51cf\u7387\u4ec5\u4e3a5.9 \u03bc<\/em>V h-1<\/sup>\uff0c\u8868\u660e\u5176\u5177\u6709\u51fa\u8272\u7684\u50ac\u5316\u7a33\u5b9a\u6027\u3002\u8fdb\u4e00\u6b65\u7684\u7535\u538b\u89e3\u8026\u5206\u6790\uff08\u56fe5f, g\uff09\u8868\u660e\u7535\u89e3\u69fd\u7684\u9ad8\u6027\u80fd\u5f52\u56e0\u4e8e\uff0c\u591a\u5b54\u5c42\u72b6p<\/em>-L-IrO2<\/sub>\u534f\u540c\u964d\u4f4e\u4e86\u6d3b\u5316\u6781\u5316\u635f\u5931(\u9ad8\u6548\u7684\u50ac\u5316\u6d3b\u6027)\u548c\u6269\u6563\u6781\u5316\u635f\u5931(\u6709\u5229\u7684\u6c34\u548c\u6c14\u4f53\u5206\u5b50\u4f20\u8f93)\u3002<\/span><\/p>\n <\/span><\/p>\n \u56fe5. <\/span><\/strong>p<\/span><\/em>-L-IrO2<\/sub><\/span>\u5728\u7535\u89e3\u69fd\u4e2d\u50ac\u5316\u6027\u80fd\u3002<\/span><\/p>\n \u00a0<\/span><\/p>\n <\/p>\n<\/section>\n \u603b\u7ed3\u4e0e\u5c55\u671b\uff1a<\/strong><\/span><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n \u4f5c\u8005\u62a5\u9053\u4e86\u9ad8\u5ea6\u591a\u5b54\u5316\u5c42\u72b6\u6c27\u5316\u94f1\u7684\u4f4e\u6e29\u5236\u5907\u65b9\u6cd5\uff0c\u5e76\u8bc1\u5b9e\u4e86\u591a\u5b54\u5316\u5c42\u72b6\u6c27\u5316\u94f1\u5728\u6784\u7b51\u9ad8\u6027\u80fd\u4f4e\u94f1\u8f7d\u91cf\u819c\u7535\u6781\u7684\u7ed3\u6784\u4f18\u52bf\u3002\u8be5\u5de5\u4f5c\u5c06\u63a8\u52a8\u4e86\u65b0\u4e00\u4ee3\u9633\u6781\u50ac\u5316\u5242\u5728\u5de5\u4e1aPEM\u7535\u89e3\u69fd\u4e2d\u7684\u5b9e\u9645\u5e94\u7528\u3002<\/span><\/p>\n \n \u4e0a\u8ff0\u5de5\u4f5c\u4ee5Research Article\u7684\u5f62\u5f0f\u53d1\u8868\u5728CCS Chemistry<\/em>\uff0c\u7b2c\u4e00\u4f5c\u8005\u4e3a\u8c22\u5468\u5175\u535a\u58eb\u7814\u7a76\u751f\u548c\u6881\u5bb5\u535a\u58eb\uff0c\u901a\u8baf\u4f5c\u8005\u4e3a\u90b9\u6653\u65b0\u6559\u6388\u548c\u9648\u8f89\u7814\u7a76\u5458\u3002<\/span><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n \n \u6587\u7ae0\u8be6\u60c5\uff1a<\/strong><\/em><\/span><\/p>\n Zhoubing Xie,#<\/sup> Xiao Liang,#<\/sup> Zhenye Kang, Yongcun Zou, Xiyang Wang, Yimin A. Wu, Graham King, Qi Liu, Yalan Huang, Xiao Zhao, Hui Chen* and Xiaoxin Zou*<\/span><\/p>\n Cite This by DOI<\/span><\/strong>