{"id":230540,"date":"2021-12-07T06:30:23","date_gmt":"2021-12-06T22:30:23","guid":{"rendered":"\/\/m.iemloyee.com\/?p=230540"},"modified":"2021-12-06T17:47:34","modified_gmt":"2021-12-06T09:47:34","slug":"nature-energy%ef%bc%9apd-n-c%e5%82%ac%e5%8c%96%e5%89%82%e8%a1%a8%e9%9d%a2%e9%87%8d%e6%9e%84%e4%bf%83%e8%bf%9b%e4%b9%99%e9%86%87%e7%87%83%e6%96%99%e7%94%b5%e6%b1%a0%e6%80%a7%e8%83%bd%e6%8f%90%e5%8d%87","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=230540","title":{"rendered":"Nature Energy\uff1aPd-N-C\u50ac\u5316\u5242\u8868\u9762\u91cd\u6784\u4fc3\u8fdb\u4e59\u9187\u71c3\u6599\u7535\u6c60\u6027\u80fd\u63d0\u5347"},"content":{"rendered":"

\u00a0<\/strong>\u80cc\u666f\u4ecb\u7ecd<\/strong><\/p>\n

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\"\"<\/p>\n

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\u56fe1. \u901a\u8fc7\u6c1f\u5316\u9a71\u52a8LCE\u91cd\u6784\u7684\u793a\u610f\u56fe<\/p>\n

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\u56fe3. Pd\/X-F\u50ac\u5316\u5242\u7684\u5f62\u8c8c\u548c\u539f\u5b50\u7ed3\u6784<\/p>\n

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\u672c\u5de5\u4f5c\u7814\u7a76\u4e86Pd\/X&F-C\u548cPd\/X-C\u7684\u7535\u50ac\u5316ORR\u6d3b\u6027\uff0c\u5e76\u4e0e\u5546\u4e1a\u5316\u7684Pd\/C\u548cPt\/C\u5bf9\u7167\u50ac\u5316\u5242\u8fdb\u884c\u4e86\u6bd4\u8f83\u3002\u4e0d\u540cN2<\/sub>\u9971\u548c\u7535\u89e3\u8d28\u4e2d\u8bb0\u5f55\u7684\u50ac\u5316\u5242\u5faa\u73af\u4f0f\u5b89\u66f2\u7ebf\u8868\u660e\uff0cF<\/strong>\u914d\u4f4d\u8bf1\u5bfc<\/strong>Pd NPs<\/strong>\u660e\u663e\u6d3b\u5316\uff0c\u6bd4\u8868\u9762\u79ef\u589e\u5927\uff0c<\/strong>Pd-O<\/strong>\u7ed3\u5408\u51cf\u5f31<\/strong>\u3002CO\u6eb6\u51fa\u4f30\u7b97\u7684Pd\/X&F-C(86.9 m2<\/sup>gPd<\/sub>-1<\/sup>)\u7684\u7535\u5316\u5b66\u6d3b\u6027\u8868\u9762\u79ef(ECSA)\u8fdc\u9ad8\u4e8ePd\/X-C\u3001Pd\/C\u548cPt\/C (\u56fe5a)\uff0c\u4e0e\u5faa\u73af\u4f0f\u5b89\u7ed3\u679c\u4e00\u81f4\u3002\u6b64\u5916\uff0c\u4e0ePd\/X-C\u548cPd\/C\u76f8\u6bd4\uff0cPd\/X&F-C\u6c27\u5316CO\u7684\u8d77\u59cb\u7535\u4f4d\u548c\u5cf0\u7535\u4f4d\u8d1f\u79fb\uff0c\u8868\u660e\u5728Pd\/X&F-C\u4e0a\u8f83\u4f4e\u7684\u7535\u4f4d\u4e0b\uff0cCO\u7684\u5438\u9644\u8f83\u5f31\uff0c\u66f4\u5bb9\u6613\u8131\u9664\u3002\u603b\u7684\u6765\u8bf4\uff0c\u7535\u5316\u5b66\u5206\u6790\u8fdb\u4e00\u6b65\u8bc1\u660e\u4e86<\/strong>Pd\/N&F-C<\/strong>\u4e2d\u7684<\/strong>F<\/strong>\u539f\u5b50\u5c06<\/strong>N<\/strong>\u539f\u5b50\u4ece\u7f3a\u9677\u4f4d\u70b9\u6324\u5411<\/strong>Pd<\/strong>\uff0c\u5bfc\u81f4<\/strong>N<\/strong>\u5728\u8868\u9762\u5bcc\u96c6<\/strong>\u3002\u4e4b\u524d\u7684\u5de5\u4f5c\u8868\u660e\uff0c\u8fd9\u79cd\u5bcc\u542bN\u7684\u8868\u9762\u5c42\u901a\u8fc7\u5728\u4f4e\u7535\u4f4d\u4e0b\u6c27\u5316\u53bb\u9664CO\u6765\u6e05\u6d01Pd\u8868\u9762\uff0c\u8fd9\u5bf9\u4e8eORR\u548c\u5c0f\u5206\u5b50\u6c27\u5316\u7b49\u8bb8\u591a\u50ac\u5316\u53cd\u5e94\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002\u672c\u5de5\u4f5c\u53d1\u73b0\uff0cPd\/X&F-C\u50ac\u5316\u5242\u8868\u73b0\u51fa\u51e0\u4e4e4.0\u7684\u7535\u5b50\u4f20\u9012\u6570(n)\uff0c\u4e0ePd\/N-C\u3001Pd\/C\u548cPt\/C\u76f8\u6bd4\uff0c\u5927\u5927\u964d\u4f4e\u4e86H2<\/sub>O2<\/sub>\u4ea7\u7387(\u5c0f\u4e8e3%)\uff0c\u6697\u793a\u4e86\u542b\u6709\u53ef\u5ffd\u7565\u526f\u4ea7\u7269\u7684\u76f4\u63a54\u7535\u5b50\u9014\u5f84\uff0c\u901a\u8fc7\u6d88\u9664\u4eb2\u6838\u8fdb\u653b\u63d0\u9ad8\u4e86\u78b3\u8f7d\u4f53\u7684\u9632\u8150\u6027\u80fd\u3002<\/p>\n

\u52a0\u901f\u7a33\u5b9a\u6027\u8bd5\u9a8c\u8fdb\u4e00\u6b65\u8868\u660e\uff0cMA\u4fdd\u7559\u7387\u572890 %\u4ee5\u4e0a\u7684Pd\/X&F-C\u7ecf3\u4e07\u6b21\u5faa\u73af\u540e\u5177\u6709\u826f\u597d\u7684\u7a33\u5b9a\u6027(\u56fe5d\uff0c\u9664MA\u4fdd\u7559\u7387\u4e3a80.4 %\u7684Pd\/S&F-C\u5916)\uff0c\u8fdc\u9ad8\u4e8ePd\/C (33.3%)\u548cPt\/C (45.8%)\u3002\u6b64\u5916\uff0cPd\/X&F-C<\/strong>\u5728\u52a0\u901f\u7a33\u5b9a\u6027\u8bd5\u9a8c\u524d\u540e\u7684<\/strong>ORR<\/strong>\u6781\u5316\u66f2\u7ebf\u51e0\u4e4e\u91cd\u53e0\uff0c<\/strong>E1\/2 <\/sub>(<10mV)<\/strong>\u51e0\u4e4e\u6ca1\u6709\u964d\u89e3<\/strong>(\u56fe5d)\u3002\u76f8\u6bd4\u4e4b\u4e0b\uff0cPd\/C\u548cPt\/C\u5206\u522b\u8868\u73b0\u51fa\u66f4\u9ad8\u7684E1\/2<\/sub>\u635f\u593168mV\u548c45mV\u3002\u672a\u63ba\u6742F\u7684Pd\/X-C\u50ac\u5316\u5242\u4e5f\u8868\u73b0\u51fa\u6bd4Pd\/X&F-C\u50ac\u5316\u5242\u66f4\u4f4e\u7684MA\u4fdd\u7559\u7387\u548c\u66f4\u9ad8\u7684E1\/2<\/sub>\u635f\u5931\uff0c\u8fd9\u4e9b\u7ed3\u679c\u8fdb\u4e00\u6b65\u8bc1\u660e\u4e86<\/strong>F<\/strong>\u5728\u7a33\u5b9a\u50ac\u5316\u5242\u4e2d\u7684\u91cd\u8981\u4f5c\u7528\u3002\u672c\u5de5\u4f5c\u6240\u63d0\u51fa\u7684<\/strong>Pd\/X&F-C<\/strong>\u6bd4\u5176\u4ed6\u6750\u6599\u5177\u6709\u66f4\u597d\u7684\u6d3b\u6027\u548c\u7a33\u5b9a\u7684\u7535\u5316\u5b66\u6027\u80fd<\/strong>\u3002<\/p>\n

\u672c\u5de5\u4f5c\u5728\u819c\u7535\u6781\u88c5\u7f6e\u4e0a\u6d4b\u8bd5\u4e86Pd\/N&F-C\u4f5c\u4e3a\u9633\u6781\u548c\u9634\u6781\u7684\u5b9e\u9645DEFC\u6027\u80fd(\u56fe6a)\u3002Pd\/N&F-C\u7684\u5f00\u8def\u7535\u538b\u4e3a1.10 V\uff0c\u4e0e\u7406\u8bba\u503c1.14 V\u975e\u5e38\u63a5\u8fd1\uff0c\u8fdc\u9ad8\u4e8ePd\/N-C (0.955V)\u3001Pd\/C(0.928V)\u548cPt\/C(0.866V)\u3002\u5f00\u8def\u7535\u538b\u7684\u63d0\u9ad8\u4f7f\u7535\u6c60\u5728\u8f83\u4f4e\u7684\u5916\u52a0\u8d1f\u8f7d\u4e0b\u5177\u6709\u8f83\u9ad8\u7684\u7535\u6c60\u6548\u7387\u548c\u8f83\u9ad8\u7684\u529f\u7387\u5bc6\u5ea6\u3002\u57280.45 V\u7535\u538b\u4e0b\uff0cDEFC (Pd\/N&F-C)\u7684\u7535\u6d41\u5bc6\u5ea6\u4e3a1.27 Acm-2<\/sup>\uff0c\u5cf0\u503c\u529f\u7387\u5bc6\u5ea6\u4e3a<\/strong>0.57 Wcm-2<\/sup><\/strong>\uff0c\u6bd4\u5176\u4ed6\u6750\u6599\u9ad8\u51fa\u51e0\u500d\uff0c\u51e0\u4e4e\u8fbe\u5230\u4e0e<\/strong>H2<\/sub><\/strong>\u71c3\u6599\u7535\u6c60\u76f8\u540c\u7684\u6570\u91cf\u7ea7<\/strong>(<\/strong>\u56fe<\/strong>6c)<\/strong>\u3002\u6b64\u5916\uff0c\u672c\u5de5\u4f5c\u5c06\u4e0d\u540c\u7684\u50ac\u5316\u5242\u7528\u4f5c\u9633\u6781\u548c\u9634\u6781\u50ac\u5316\u5242\uff0c\u4ee5\u4e86\u89e3Pd\/N&F-C\u5bf9\u71c3\u6599\u7535\u6c60\u4e24\u4fa7\u7684\u5f71\u54cd\u3002\u53d1\u73b0\u7535\u6c60\u7684\u6781\u5316\u635f\u5931\u4e3b\u8981\u6765\u81ea\u4e8e\u9633\u6781EOR\uff0c\u8fd9\u662f\u7531\u4e8e\u7f13\u6162\u768412\u7535\u5b50\u9014\u5f84\uff0c\u800c\u9ad8\u7684\u9633\u6781\u7535\u89e3\u6db2\u6d41\u901f\u53ef\u4ee5\u6700\u5927\u9650\u5ea6\u5730\u51cf\u5c11\u4f20\u8d28\u9650\u5236\uff0c\u5e76\u51cf\u5c11\u4ea7\u751f\u7684CO2<\/sub>\u7684\u8d1f\u9762\u5f71\u54cd\u3002\u5373\u4f7f\u5728\u8f83\u4f4e\u7684\u9633\u6781\u7535\u89e3\u6db2\u6d41\u901f\u4e0b\uff0c<\/strong>Pd\/X&F-C<\/strong>\u4ecd\u7136\u8868\u73b0\u51fa\u6bd4\u672a\u63ba\u6742<\/strong>F<\/strong>\u7684\u6837\u54c1\u8981\u597d\u5f97\u591a\u7684\u6027\u80fd<\/strong>\u3002<\/p>\n

\"\"<\/p>\n

\u56fe4. XAS\u5149\u8c31\u5206\u6790<\/p>\n

\"\"<\/p>\n

\u56fe5. \u7535\u5316\u5b66\u6027\u80fd<\/p>\n

\"\"<\/p>\n

\u56fe6. \u76f4\u63a5\u4e59\u9187\u71c3\u6599\u7535\u6c60\u6d4b\u8bd5\u53ca\u7a33\u5b9a\u6027<\/p>\n

\u4e09\u3001\u673a\u7406\u5206\u6790\u3002<\/strong><\/p>\n

\u6839\u636e<\/strong>STEM-EELS<\/strong>\u548c<\/strong>XAS<\/strong>\u7ed3\u679c\uff0c\u53ef\u4ee5\u63a8\u65ad<\/strong>F<\/strong>\u63ba\u6742\u53ef\u4ee5\u5f31\u5316<\/strong>N-C<\/strong>\u952e\uff0c\u4ece\u800c\u5141\u8bb8<\/strong>X<\/strong>\u539f\u5b50\u5728<\/strong>Pd<\/strong>\u7eb3\u7c73\u9897\u7c92\u5468\u56f4\u7684\u5206\u79bb<\/strong>\u3002\u4e3a\u4e86\u89e3\u91ca\u8fd9\u4e9b\u5b9e\u9a8c\u7ed3\u679c\uff0c\u672c\u5de5\u4f5c\u9884\u6d4b\u5e76\u6bd4\u8f83\u4e86\u6709F\u63ba\u6742\u548c\u65e0F\u63ba\u6742\u7684Pd\/X-C\u50ac\u5316\u5242\u4e2d\u4e0d\u540cX\u5206\u5e03\u7684\u7cfb\u7edf\u80fd\u91cf\u3002\u4e3a\u4e86\u8be6\u7ec6\u8bf4\u660e\u672c\u5de5\u4f5c\u7684\u8ba1\u7b97\u65b9\u6cd5\uff0c\u4f5c\u8005\u4ee5Pd\/N-C\u4e3a\u4f8b\uff0c\u4f7f\u7528\u4f4d\u4e8e\u77f3\u58a8\u70ef\u5b54\u8fb9\u7f18\u7684\u5421\u5576N\u6765\u6a21\u62dfN\u63ba\u6742\u7684\u78b3\u548cPd (111)\u6269\u5c55\u8868\u9762\u6765\u6a21\u62dfPd NPs\u7684\u8868\u9762\u3002\u672c\u5de5\u4f5c\u7684DFT\u7ed3\u679c\u8868\u660eF\u63ba\u6742\u5728\u80fd\u91cf\u4e0a\u6709\u5229\u4e8e\u5438\u9644\u5728\u7d27\u90bbN\u539f\u5b50\u7684C\u539f\u5b50\u4e0a\u3002\u56e0\u6b64\uff0c\u672c\u5de5\u4f5c\u5728\u7d27\u90bbN\u539f\u5b50\u7684\u4e24\u4e2aC\u539f\u5b50\u9876\u90e8\u5f15\u5165\u4e24\u4e2aF\u63ba\u6742\u5242\u6765\u6a21\u62dfPd\/N&F-C\u3002\u675f\u7f1a\u80fd\u9884\u6d4bN\u539f\u5b50\u5728N-\u77f3\u58a8\u70ef\u548cNF-\u77f3\u58a8\u70ef\u4e0a\u5206\u522b\u4e3a-9.26eV\u548c-3.94eV\uff0c\u8868\u660e<\/strong>F<\/strong>\u7684\u52a0\u5165\u4f1a\u964d\u4f4e<\/strong>N-C<\/strong>\u952e\u7684\u5f3a\u5ea6<\/strong>\u3002\u9884\u6d4bN-C\u5728N-\u77f3\u58a8\u70ef\u548cNF-\u77f3\u58a8\u70ef\u4e0a\u7684\u952e\u957f\u5206\u522b\u4e3a1.35\u00c5\u548c1.38\u00c5\uff0c\u8fd9\u4e5f\u610f\u5473\u7740F\u63ba\u6742\u53ef\u4ee5\u51cf\u5f31\u50ac\u5316\u5242\u4e2d\u7684N-C\u952e\u3002\u6b64\u5916\uff0c\u9884\u6d4bN\u5728Pd (111)\u4e0a\u7684\u7ed3\u5408\u80fd\u4e3a-4.94 eV\uff0c\u6bd4N-\u77f3\u58a8\u70ef\u5f31\uff0c\u4f46\u6bd4NF-\u77f3\u58a8\u70ef\u5f3a\u3002\u8fd9\u8bf4\u660e\u5728<\/strong>Pd\/N-C<\/strong>\u50ac\u5316\u5242\u4e2d\u5f15\u5165<\/strong>F<\/strong>\u63ba\u6742\u540e\uff0c<\/strong>N<\/strong>\u539f\u5b50\u4f1a\u4f4d\u4e8e\u77f3\u58a8\u70ef\u8fb9\u7f18\uff0c\u800c\u66f4\u503e\u5411\u4e8e\u5438\u9644\u5728<\/strong>Pd (111)<\/strong>\u4e0a<\/strong>\u3002Pd-N\u7edc\u5408\u7269\u8fd8\u53ef\u4ee5\u901a\u8fc7\u52a0\u5febEOR\u7684\u901f\u7387\u51b3\u5b9a\u6b65\u9aa4\u6765\u589e\u5f3aPd (111)\u4e0a\u7684EOR\u6d3b\u6027\uff0c\u5f88\u597d\u5730\u89e3\u91ca\u4e86Pd\/N&F-C\u50ac\u5316\u5242\u4e0a\u63d0\u9ad8EOR\u6d3b\u6027\u7684\u5b9e\u9a8c\u89c2\u5bdf\u3002<\/p>\n

\"\"<\/p>\n

\u56fe7. DFT\u8ba1\u7b97<\/p>\n

\u56db\u3001\u7ed3\u8bba\u4e0e\u5c55\u671b\u3002<\/strong><\/p>\n

\u603b\u4e4b\uff0c\u672c\u5de5\u4f5c\u63d0\u51fa\u4e86\u4e00\u79cd\u8c03\u8282<\/strong>Pd\/X&F-C (X=N , P , S , B)<\/strong>\u7684<\/strong>LCE<\/strong>\u548c\u6d3b\u6027\u7684\u6709\u6548\u7b56\u7565\uff0c\u7528\u4e8e\u8bbe\u8ba1<\/strong>DEFC<\/strong>\u7684\u9ad8\u6027\u80fd\u50ac\u5316\u5242<\/strong>\u3002\u7814\u7a76\u53d1\u73b0\uff0cPd\/N&F-C\u50ac\u5316\u5242\u4e2d\u7684F\u539f\u5b50\u5c06N\u539f\u5b50\u6324\u5411Pd\uff0c\u901a\u8fc7\u5f62\u6210Pd-N\u6d3b\u6027\u4f4d\u70b9\u4fc3\u8fdb\u50ac\u5316\u53cd\u5e94\uff0c\u4ece\u800c\u6709\u6548\u5730\u8c03\u63a7Pd\u7684LCE\u3002Pd\u8868\u9762\u4e0a\u7684Pd-N\u4e0d\u4ec5\u524a\u5f31\u4e86CO\u7684\u5438\u9644\uff0c\u800c\u4e14\u4e3aORR\u8fc7\u7a0b\u4e2dO2<\/sub>\u7684\u5feb\u901f\u5438\u9644\u521b\u9020\u4e86\u66f4\u591a\u53ef\u53ca\u7684\u50ac\u5316\u4f4d\u70b9\u3002\u6b64\u5916\uff0c\u5bcc\u542b<\/strong>N<\/strong>\u7684<\/strong>Pd<\/strong>\u8868\u9762\u4fc3\u8fdb<\/strong>C-C<\/strong>\u952e\u65ad\u88c2\uff0c\u5e76\u901a\u8fc7<\/strong>12<\/strong>\u7535\u5b50\u9014\u5f84\u5b9e\u73b0\u4e59\u9187\u7684\u5b8c\u5168\u6c27\u5316\u3002\u5f53\u7528\u4f5c<\/strong>ORR<\/strong>\u50ac\u5316\u5242\u65f6\uff0c<\/strong>Pd\/N&F-C<\/strong>\u5728<\/strong>0.9 ViR-free<\/sub><\/strong>\u4e0b\u63d0\u4f9b<\/strong>4.71 A mgPd<\/sub>-1<\/sup><\/strong>\u7684\u9ad8<\/strong>MA<\/strong>\u3002\u540c\u65f6\uff0c\u4f5c\u4e3a<\/strong>EOR<\/strong>\u50ac\u5316\u5242\uff0c\u4e59\u9187\u6c27\u5316\u5cf0\u7535\u6d41\u5bc6\u5ea6\u8fbe\u5230<\/strong>26.5 A mgPd<\/sub>-1<\/sup><\/strong>\u3002\u5728<\/strong>DEFC<\/strong>\u4e2d\u6d4b\u8bd5\u65f6\uff0c\u83b7\u5f97\u4e86<\/strong>0.57 Wcm-2<\/sup><\/strong>\u7684\u6700\u5927\u529f\u7387\u5bc6\u5ea6\uff0c\u957f\u671f\u7a33\u5b9a\u6027\u8d85\u8fc7<\/strong>5900<\/strong>\u5c0f\u65f6\uff0c\u5c55\u793a\u4e86\u5b9e\u9645\u5e94\u7528\u7684\u5de8\u5927\u524d\u666f\u3002\u4f7f\u7528\u5176\u4ed6\u78b3\u8d1f\u8f7d\u91d1\u5c5e\u50ac\u5316\u5242\u5bf9\u6240\u63d0\u51fa\u7684\u7b56\u7565\u8fdb\u884c\u4e86\u6d4b\u8bd5\uff0c\u4e5f\u663e\u793a\u51fa\u6781\u5927\u7684\u6539\u5584\u6d3b\u6027\u548c\u7a33\u5b9a\u6027<\/strong>\u3002\u56e0\u6b64\uff0c\u8fd9\u79cd\u7b56\u7565\u4e3a\u89e3\u51b3\u5404\u79cd\u80fd\u6e90\u88c5\u7f6e\u4e2d\u4f7f\u7528\u7684\u78b3\u6750\u6599\u7684\u8150\u8680\u95ee\u9898\u94fa\u5e73\u4e86\u9053\u8def\u3002<\/p>\n

\u7b2c\u4e00\u4f5c\u8005\uff1aJinfa Chang<\/p>\n

\u901a\u8baf\u4f5c\u8005\uff1a\u8c37\u731b\u3001\u738b\u56fd\u5cf0\u3001\u6768\u9633\u3001\u51af\u632f\u5174<\/p>\n

\u901a\u8baf\u5355\u4f4d\uff1a\u5357\u65b9\u79d1\u6280\u5927\u5b66\uff1b\u5339\u5179\u5821\u5927\u5b66\uff1b\u4e2d\u4f5b\u7f57\u91cc\u8fbe\u5927\u5b66\uff1b\u4fc4\u52d2\u5188\u5dde\u7acb\u5927\u5b66<\/p>\n

\u8bba\u6587doi\uff1a<\/p>\n

https:\/\/doi.org\/10.1038\/s41560-021-00940-4<\/p>\n

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