{"id":126459,"date":"2018-02-24T06:30:07","date_gmt":"2018-02-23T22:30:07","guid":{"rendered":"\/\/m.iemloyee.com\/?p=126459"},"modified":"2018-02-22T11:02:19","modified_gmt":"2018-02-22T03:02:19","slug":"%e5%b8%83%e6%9c%97%e5%a4%a7%e5%ad%a6%e5%ad%99%e5%ae%88%e6%81%92jacs-%ef%bc%9a%e9%87%91%e5%b1%9e%e9%97%b4%e5%8c%96%e5%90%88%e7%9a%84l10-fept%e5%af%b9fe%e7%9a%84%e7%a8%b3%e5%ae%9a%e4%bd%9c%e7%94%a8","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=126459","title":{"rendered":"\u5e03\u6717\u5927\u5b66\u5b59\u5b88\u6052JACS.\uff1a\u91d1\u5c5e\u95f4\u5316\u5408\u7684L10-FePt\u5bf9Fe\u7684\u7a33\u5b9a\u4f5c\u7528\u548cPt\u50ac\u5316\u589e\u5f3aL10-FePt\/Pt\u7eb3\u7c73\u7c92\u5b50\u71c3\u6599\u7535\u6c60\u9ad8\u6548\u6c27\u8fd8\u539f\u53cd\u5e94"},"content":{"rendered":"
\u3010\u5f15\u8a00\u3011<\/b><\/strong><\/p>\n \u8d28\u5b50\u4ea4\u6362\u819c\u71c3\u6599\u7535\u6c60\uff08PEMFC\uff09\u901a\u8fc7\u71c3\u6599\u7684\u8026\u5408\u6c27\u5316\u548c\u6c27\u6c14\u8fd8\u539f\u5c06\u50a8\u5b58\u5728\u71c3\u6599\uff08\u5982\u6c22\u6c14\u6216\u9152\u7cbe\uff09\u4e2d\u7684\u5316\u5b66\u80fd\u8f6c\u5316\u4e3a\u7535\u80fd\u3002\u5728\u8be5\u80fd\u91cf\u8f6c\u6362\u88c5\u7f6e\u4e2d\uff0c\u94c2\uff08Pt\uff09\u4f5c\u4e3a\u50ac\u5316\u5242\u5728\u6c27\u5316\u548c\u8fd8\u539f\u53cd\u5e94\u8fc7\u7a0b\u4e2d\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002\u4f46\u662f\uff0cPt\u50ac\u5316\u5242\u672c\u8eab\u663e\u793a\u51fa\u7f13\u6162\u76844-\u7535\u5b50\u6c27\u8fd8\u539f\u53cd\u5e94\uff08ORR\uff09\u52a8\u529b\u5b66\u5e76\u4e14\u5728\u8150\u8680\u6027\u53cd\u5e94\u73af\u5883\u4e2d\u7f3a\u4e4f\u6240\u9700\u7684\u957f\u671f\u7a33\u5b9a\u6027\uff0c\u8fd9\u662f\u6211\u4eec\u4e0d\u5e0c\u671b\u7684\u3002\u56e0\u6b64\uff0c\u901a\u8fc7\u7406\u89e3Pt\u4e0e\u8bb8\u591a\u542b\u6c27\u53cd\u5e94\u4e2d\u95f4\u4f53\u7684\u7ed3\u5408\u80fd\u4ee5\u53ca\u901a\u8fc7\u4f7fPt\u4e0e\u7b2c\u4e00\u884c\u8fc7\u6e21\u91d1\u5c5eM\u5408\u91d1\u5316\uff0c\u81f4\u529b\u4e8e\u6539\u5584Pt\u4e0a\u7684ORR\u50ac\u5316\u3002<\/p>\n \u3010\u6210\u679c\u7b80\u4ecb\u3011<\/b><\/strong><\/p>\n \u8fd1\u65e5\uff0c\u5728\u7f8e\u56fd\u5e03\u6717<\/b><\/strong>\u5927\u5b66<\/b><\/strong>\u5b59\u5b88\u6052<\/b><\/strong>\u6559\u6388<\/b><\/strong>\uff08\u901a\u8baf\u4f5c\u8005\uff09<\/b><\/strong>\u8bfe\u9898\u7ec4<\/b><\/strong>\u7684\u5e26\u9886\u4e0b\uff0c\u4e0e\u7f8e\u56fd<\/b><\/strong>\u6d1b\u65af\u963f\u62c9\u83ab\u65af\u56fd\u5bb6\u5b9e\u9a8c\u5ba4<\/b><\/strong>\u3001\u52a0\u62ff\u5927\u8fbe\u5c14\u8c6a\u897f\u5927\u5b66\u3001\u7f8e\u56fd\u5e03\u9c81\u514b\u6d77\u6587\u56fd\u5bb6\u5b9e\u9a8c\u5ba4<\/b><\/strong>\u548c\u534e\u4e2d\u79d1\u6280\u5927\u5b66<\/b><\/strong>\u5408\u4f5c\uff0c\u62a5\u9053\u4e86\u5982\u4f55\u7a33\u5b9a\u91d1\u5c5e\u95f4\u5316\u5408\u7684L10<\/sub>-MPt\u5408\u91d1\u7eb3\u7c73\u9897\u7c92\uff08NPs\uff09\u7ed3\u6784\u4e2d\u7684\u7b2c\u4e00\u884c\u8fc7\u6e21\u91d1\u5c5e\uff0c\u4ee5\u53ca\u5982\u4f55\u7528Pt\u7684\u539f\u5b50\u5c42\u56f4\u7ed5L10<\/sub>-MPt\u4ee5\u589e\u5f3aPt\u50ac\u5316\u5242\u7528\u4e8e\u71c3\u6599\u7535\u6c60\u7684\u6c27\u8fd8\u539f\u53cd\u5e94\uff08ORR\uff09\u3002\u4ee58nm FePt\u7eb3\u7c73\u7c92\u5b50\u4e3a\u4f8b\uff0c\u8bc1\u660e\u4e86Fe\u53ef\u4ee5\u5728\u5177\u67095\u57c3Pt\u58f3\u5c42\u7684\u6838\/\u58f3\u7ed3\u6784\u5316L10<\/sub>-FePt\/Pt\u4e2d\u66f4\u6709\u6548\u5730\u7a33\u5b9a\u3002Fe\u5728\u5408\u91d1\u6838\u5fc3\u4e2d\u7684\u5b58\u5728\u8bf1\u5bfc\u4e86\u8584Pt\u58f3\u7684\u538b\u7f29\uff0c\u7279\u522b\u662fPt\u58f3\u7684\u4e24\u4e2a\u539f\u5b50\u5c42\uff0c\u8fdb\u4e00\u6b65\u6539\u5584\u4e86ORR\u50ac\u5316\u3002\u8fd9\u5bfc\u81f4\u57280.1M HClO4<\/sub>\u6eb6\u6db2\uff08\u5728\u5ba4\u6e29\u548c60\u2103\uff09\u548c\u572880\u2103\u7684\u819c\u7535\u6781\u7ec4\u4ef6\uff08MEA\uff09\u4e2dPt\u7684ORR\u6027\u80fd\u5927\u5927\u63d0\u9ad8\u3002L10<\/sub>-FePt\/Pt\u50ac\u5316\u5242\u5728\u534a\u7535\u6c60ORR\u6d4b\u8bd5\u4e2d\u5177\u67090.7A\/ mgPt<\/sub>\u7684\u8d28\u91cf\u6d3b\u6027\uff0c\u5e76\u4e14\u5728MEA\u4e2d\uff0c80\u00b0C\u4e0b\u57280.6\u548c0.95V\u4e4b\u95f4\u768430000\u6b21\u5faa\u73af\u540e\u6ca1\u6709\u663e\u793a\u51fa\u660e\u663e\u7684\u8d28\u91cf\u6d3b\u6027\u635f\u5931\uff0c\u8fbe\u5230\u7f8e\u56fd\u80fd\u6e90\u90e82020\u5e74\u76ee\u6807\uff08\u8d28\u91cf\u6d3b\u6027\u635f\u5931<40\uff05\uff09\u3002\u76f8\u5173\u6210\u679c\u4ee5\u9898\u4e3a\u201cFe Stabilization by Intermetallic <\/b><\/strong>L1<\/b><\/strong>0-<\/b><\/sub><\/strong>FePt and Pt Catalysis Enhancement in <\/b><\/strong>L1<\/b><\/strong>0<\/b><\/sub><\/strong>-FePt\/Pt Nanoparticles for Efficient Oxygen Reduction Reaction in Fuel Cells<\/b><\/strong>\u201d\u53d1\u8868\u5728\u4e86J. Am. Chem. Soc.<\/b><\/strong>\u4e0a\u3002<\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/b><\/strong><\/p>\n \u56fe<\/b><\/strong>1 <\/b><\/strong>\u4e0d\u540c\u7eb3\u7c73\u9897\u7c92\u7684\u5fae\u89c2\u5f62\u8c8c\u8868\u5f81<\/b><\/strong><\/p>\n \uff08A\uff09C-L10<\/sub>-FePt NPs\u7684TEM\u56fe\u50cf\uff1b<\/p>\n \uff08B\uff09L10<\/sub>-FePt NPs\u7684\u4e8c\u7ef4EELS\u5143\u7d20\u6620\u5c04\u56fe\u50cf\uff0c\u5176\u4e2dFe\u4e3a\u7eff\u8272\uff0cPt\u4e3a\u7ea2\u8272\uff1b<\/p>\n \uff08C\uff09L10<\/sub>-FePt NP\u7684STEM-EELS\u7ebf\u626b\u63cf\uff1b<\/p>\n \uff08D\uff09C-L10<\/sub>-FePt\/Pt NPs\u7684TEM\u56fe\u50cf\u3002<\/p>\n \uff08E\uff09L10<\/sub>-FePt\/Pt NP\u7684\u4e8c\u7ef4EELS\u5143\u7d20\u6620\u5c04\u56fe\u50cf\uff0c\u5176\u4e2dFe\u4e3a\u7eff\u8272\uff0cPt\u4e3a\u7ea2\u8272\uff1b<\/p>\n \uff08F\uff09L10<\/sub>-FePt\/Pt NP\u7684STEM-EELS\u7ebf\u626b\u63cf\u3002<\/p>\n \u56fe<\/b><\/strong>2 <\/b><\/strong>L1<\/b><\/strong>0<\/b><\/sub><\/strong>-FePt<\/b><\/strong>\u00a0NP\u548c<\/b><\/strong>L1<\/b><\/strong>0<\/b><\/sub><\/strong>-FePt\/Pt<\/b><\/strong>\u00a0NP\u7684HAADF-STEM\u56fe\u50cf\u8868\u5f81<\/b><\/strong><\/p>\n \uff08A\uff09\u4ee3\u8868\u6027L10<\/sub>-FePt NP\u7684HAADF-STEM\u56fe\u50cf\uff1b<\/p>\n \uff08B\uff09\u4ee3\u8868\u6027L10<\/sub>-FePt \/ Pt NP\u7684HAADF-STEM\u56fe\u50cf\uff1b<\/p>\n \uff08C\uff09L10<\/sub>-FePt \/ Pt NP\u5177\u6709\u7ea62\u4e2aPt\u58f3\u539f\u5b50\u5c42\u53ca\u5176\u653e\u5927\u56fe<\/p>\n \u56fe<\/b><\/strong>3 <\/b><\/strong>L1<\/b><\/strong>0<\/b><\/sub><\/strong>-FePt<\/b><\/strong>\u00a0NP\u548c<\/b><\/strong>L1<\/b><\/strong>0<\/b><\/sub><\/strong>-FePt\/Pt<\/b><\/strong>\u00a0NP\u7684<\/b><\/strong>\u7ed3\u6784\u8868\u5f81<\/b><\/strong><\/p>\n \uff08A\uff09L10<\/sub>-FePt NPs\u7684Pt L3<\/sub>-edge\uff1b<\/p>\n \uff08B\uff09L10<\/sub>-FePt NPs\u7684Fe K-edge\uff1b<\/p>\n \uff08C\uff09L10<\/sub>-FePt\/Pt NPs\u7684Pt L3<\/sub>-edge\uff1b<\/p>\n \uff08D\uff09L10<\/sub>-FePt\/Pt NPs\u7684Fe K-edge\uff1b<\/p>\n \uff08E\uff09L10<\/sub>-FePt\u548cL10<\/sub>-FePt\/Pt\u7684XRD\u56fe\u8c31\u3002L10<\/sub>\uff08fct\u578b\uff09FePt\u7684\u6807\u51c6\u5cf0\u7528\u84dd\u7ebf\u8868\u793a\uff08JCPDS\uff1a65-1051\uff09\u3002<\/p>\n \u56fe<\/b><\/strong>4 <\/b><\/strong>L1<\/b><\/strong>0<\/b><\/sub><\/strong>-FePt\/Pt<\/b><\/strong>\u50ac\u5316\u5242\u7684\u7535\u5316\u5b66\u6027\u80fd\u8868\u5f81<\/b><\/strong><\/p>\n \uff08A\uff09L10<\/sub>-FePt\u5728\u5bff\u547d\u521d\u671f\uff08BOL\uff09\u548cADT\u6d4b\u8bd5\uff08\u572860\u2103\uff0c\u5728\u6c27\u9971\u548c\u76841M HClO4\u4e2d5000\u6b21\u5faa\u73af\uff09\u6d4b\u8bd5\u540e\u7684ORR\u6781\u5316\u66f2\u7ebf\uff1b<\/p>\n \uff08B\uff09L10<\/sub>-FePt\/Pt\u548c\u5546\u4e1aPt\u5728BOL\u548cADT\u6d4b\u8bd5\uff08\u572860\u2103\u4e0b\u5728\u6c27\u9971\u548c\u76841M HClO4<\/sub>\u4e2d5000\u6b21\u5faa\u73af\u548c10000\u6b21\u5faa\u73af\uff09\u6d4b\u8bd5\u540e\u7684ORR\u6781\u5316\u66f2\u7ebf\uff1b<\/p>\n \uff08C\uff09L10<\/sub>-FePt\/Pt\u548c\u5546\u4e1aPt\u50ac\u5316\u5242\u5728BOL\u548cADT\u6d4b\u8bd5\u540e\u7684\u8d28\u91cf\u6d3b\u6027\uff1b<\/p>\n \uff08D\uff09L10<\/sub>-FePt\/Pt\u548c\u5546\u4e1aPt\u50ac\u5316\u5242\u5728BOL\u548cADT\u6d4b\u8bd5\u540e\u7684\u534a\u6ce2\u7535\u4f4d\u53d8\u5316\u3002<\/p>\n \u56fe<\/b><\/strong>5 <\/b><\/strong>L1<\/b><\/strong>0<\/b><\/sub><\/strong>-FePt\/Pt\u50ac\u5316\u5242<\/b><\/strong>\u7684\u6d3b\u6027\u8868\u5f81<\/b><\/strong><\/p>\n \uff08A\uff09\u5546\u4e1aTKK-Pt\u548cL10<\/sub>-FePt\/Pt\u50ac\u5316\u5242\u5728\u7ec4\u88c5\u7684MEA\u4e0a\u7684H2<\/sub>-\u7a7a\u6c14\u71c3\u6599\u7535\u6c60\u6781\u5316\u66f2\u7ebf\uff1b<\/p>\n \uff08B\uff09\u5728ADT\u671f\u95f4\u7684\u5546\u4e1aTKK-Pt\uff0cL10<\/sub>-FePt\/Pt\u548c8nm Pt\u50ac\u5316\u5242\u5728\u71c3\u6599\u7535\u6c60\u4e2d\u9ad8\u8fbe30000\u6b21\u5faa\u73af\u7684\u7535\u5316\u5b66\u6d3b\u6027\u8868\u9762\u79ef\uff1b<\/p>\n \uff08C\uff09\u5728ADT\u671f\u95f4\u7684\u5546\u4e1aTKK-Pt\uff0cL10<\/sub>-FePt\/Pt\u548c8nm Pt\u50ac\u5316\u5242\u5728\u71c3\u6599\u7535\u6c60\u4e2d\u9ad8\u8fbe30000\u6b21\u5faa\u73af\u7684\u8d28\u91cf\u6d3b\u6027\u3002<\/p>\n \u56fe<\/b><\/strong>6 <\/b><\/strong>\u7ec4\u88c5<\/b><\/strong>\u6210<\/b><\/strong>MEA<\/b><\/strong>\u6d4b\u5f97<\/b><\/strong>H<\/b><\/strong>2<\/b><\/sub><\/strong>-\u7a7a\u6c14\u71c3\u6599\u7535\u6c60\u6781\u5316\u66f2\u7ebf<\/b><\/strong><\/p>\n \u5206\u522b\u7531L10<\/sub>-FePt\/Pt\uff0822wt\uff05\u7684Pt\u8d1f\u8f7d\u7387\uff0cPt\u8d1f\u8f7d\u91cf\u4e3a0.103mgPt<\/sub>\/cm2<\/sup>\uff09\u548c8nm Pt\u50ac\u5316\u5242\uff0823wt\uff05\u7684Pt\u8d1f\u8f7d\u7387\uff0cPt\u8d1f\u8f7d\u91cf0.097mgPt<\/sub>\/cm2<\/sup>\uff09\u7ec4\u88c5\u6210MEA\u8bb0\u5f55\u7684H2<\/sub>-\u7a7a\u6c14\u71c3\u6599\u7535\u6c60\u6781\u5316\u66f2\u7ebf\u3002<\/p>\n \u3010\u5c0f\u7ed3<\/b><\/strong>\u3011<\/p>\n \u56e2\u961f\u63d0\u4f9b\u7684\u8bc1\u636e\u8868\u660e\uff0c\u5177\u6709\u301c2\u539f\u5b50\u5c42\u7684Pt\u58f3\u7684\u91d1\u5c5e\u95f4\u5316\u5408\u7684L10<\/sub>-FePt\/Pt\u5bf9\u4e8e\u6d3b\u6027ORR\u50ac\u5316\u7684\u5feb\/\u6df1Fe\u8680\u523b\u662f\u5316\u5b66\u7a33\u5b9a\u7684\u3002\u5149\u6ed1\u7684\u8584Pt\u58f3\u7531\u4e8e\u5176\u4e0eL10<\/sub>-FePt\u6838\u7684\u5916\u5ef6\u7ed3\u5408\u800c\u88ab\u538b\u7f29\uff0c\u5e76\u4e14\u6838\/\u58f3L10<\/sub>-FePt\/Pt NPs\u6bd48nm Pt\u7eb3\u7c73\u9897\u7c92\u6216\u5546\u4e1aTKK-Pt\u7eb3\u7c73\u9897\u7c92\uff082nm\uff09\u5177\u6709\u66f4\u9ad8\u7684\u50ac\u5316\u6d3b\u6027\uff0c\u5728\u71c3\u6599\u7535\u6c60\u6d4b\u8bd5\u4e2d\u663e\u793a\u51fa\u4f18\u5f02\u7684\u8d28\u91cf\u6d3b\u6027\uff0c\u5e76\u5177\u6709\u66f4\u597d\u7684\u8010\u4e45\u6027\u3002\u4f5c\u4e3a\u6bd4\u8f83\uff0c\u5728\u76f8\u540c\u7684\u71c3\u6599\u7535\u6c60\u6d4b\u8bd5\u6761\u4ef6\u4e0b\uff0c\u5546\u4e1aTKK-Pt\u7684\u8d28\u91cf\u6d3b\u6027\u4e0b\u964d\u4e8656\uff05\u3002 \u56e2\u961f\u6b63\u5728\u52aa\u529b\u7f29\u5c0fL10<\/sub>-FePt\u7eb3\u7c73\u7c92\u5b50\u7684\u5c3a\u5bf8\u4ee5\u5b9e\u73b0\u66f4\u9ad8\u7684\u8d28\u91cf\u6d3b\u6027\u3002\u6b64\u5916\uff0c\u56e2\u961f\u6b63\u5728\u6269\u5c55\u8fd9\u4e00\u6982\u5ff5\uff0c\u5e76\u6b63\u5728\u51c6\u5907\u5176\u4ed6L10<\/sub>-MPt\/Pt\u7eb3\u7c73\u9897\u7c92\uff08M = Co\u6216CoNi\uff09\u4f5c\u4e3aPEMFC\u5e94\u7528\u7684\u5f3a\u5927\u50ac\u5316\u5242\u3002<\/p>\n \u6587\u732e\u94fe\u63a5\uff1a<\/b><\/strong>Fe Stabilization by Intermetallic L1<\/b><\/u><\/strong>0<\/b><\/sub><\/u><\/strong>-FePt and Pt Catalysis Enhancement in L1<\/b><\/u><\/strong>0<\/b><\/sub><\/u><\/strong>-FePt\/Pt Nanoparticles for Efficient Oxygen Reduction Reaction in Fuel Cells<\/b><\/u><\/strong><\/a>\uff08J. Am. Chem. Soc., 2018, DOI: 10.1021\/jacs.7b12829\uff09<\/p>\n \u672c\u6587\u7531\u6750\u6599\u4eba\u7f16\u8f91\u90e8\u5b66\u672f\u7ec4\u6728\u6587\u97ec\u7f16\u8bd1\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\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<\/b><\/u><\/strong><\/a>\u3002\u6b22\u8fce\u5927\u5bb6\u5230\u6750\u6599\u4eba\u5ba3\u4f20\u79d1\u6280\u6210\u679c\u5e76\u5bf9\u6587\u732e\u8fdb\u884c\u6df1\u5165\u89e3\u8bfb\uff0c\u6295\u7a3f\u90ae\u7bb1tougao@cailiaoren.com\u3002<\/p>\n<\/p>\n
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