{"id":260678,"date":"2024-06-10T06:58:32","date_gmt":"2024-06-09T22:58:32","guid":{"rendered":"\/\/m.iemloyee.com\/?p=260678"},"modified":"2024-06-11T11:02:05","modified_gmt":"2024-06-11T03:02:05","slug":"%e7%94%a8%e4%ba%8e%e7%a8%b3%e5%ae%9a%e4%bd%8e%e5%8e%8b%e5%8f%af%e6%8b%89%e4%bc%b8%e6%99%b6%e4%bd%93%e7%ae%a1%e9%98%b5%e5%88%97%e5%92%8c%e9%ab%98%e5%88%86%e8%be%a8%e7%8e%87-x-%e5%b0%84%e7%ba%bf","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=260678","title":{"rendered":"\u534e\u4e2d\u79d1\u5927\u674e\u7b90&\u5317\u5927\u90ed\u5c11\u519bNature Materials"},"content":{"rendered":"

\u5c3c\u53e4\u62c9\u65af<\/p>\n

\u4e00\u3001\u3010\u79d1\u5b66\u80cc\u666f\u3011<\/strong><\/p>\n

L10-PtM \u91d1\u5c5e\u95f4\u7eb3\u7c73\u6676\u4f53\u56e0\u5176\u6709\u5e8f\u7684\u7ed3\u6784\u548c\u7a33\u5b9a\u6027\u800c\u5728\u71c3\u6599\u7535\u6c60\u5e94\u7528\u4e2d\u5907\u53d7\u91cd\u89c6\u3002\u9ad8\u6e29\u9000\u706b\uff08>600 \u2103\uff09\u4f1a\u5bfc\u81f4\u9897\u7c92\u70e7\u7ed3\u548c\u5f62\u6001\u53d8\u5316\uff0c\u9000\u706b\u8fc7\u7a0b\u9650\u5236\u4e86\u6709\u5e8f\u5ea6\uff0c\u963b\u788d\u4e86\u9ad8\u94c2\u542b\u91cf PtM \u91d1\u5c5e\u95f4\u7eb3\u7c73\u6676\u4f53\u7684\u5236\u5907\u3002\u5f15\u5165 Sn\u3001Ga\u3001In \u7b49\u4f4e\u7194\u70b9\u91d1\u5c5e\u53ef\u4ee5\u524a\u5f31\u91d1\u5c5e\u952e\u5f3a\u5ea6\uff0c\u964d\u4f4e\u9000\u706b\u6e29\u5ea6\uff0c\u4fc3\u8fdb\u6709\u5e8f\u5316\u8fc7\u7a0b\u3002\u65b0\u65b9\u6cd5\u53ef\u4ee5\u5728\u8f83\u4f4e\u6e29\u5ea6\uff08\u2264450 \u2103\uff09\u4e0b\u5236\u5907\u51fa\u9ad8\u94c2\u542b\u91cf\u7684 L10-Pt-M-M’ \u91d1\u5c5e\u95f4\u7eb3\u7c73\u6676\u4f53\u3002<\/p>\n

\u4e8c\u3001\u3010\u521b\u65b0\u6210\u679c\u3011<\/strong><\/p>\n

\u8fd1\u65e5\uff0c\u6765\u81ea\u534e\u4e2d\u79d1\u6280\u5927\u5b66\u7684\u674e\u7b90\u6559\u6388\u548c\u5317\u4eac\u5927\u5b66\u7684\u90ed\u5c11\u519b\u6559\u6388\u56e2\u961f\u5728 Nature Materials <\/em><\/strong>\u671f\u520a\u53d1\u8868\u4e86\u9898\u4e3a\u201cMetal bond strength regulation enables large-scale synthesis of intermetallic nanocrystals for practical fuel cells<\/strong>\u201d\u7684\u8bba\u6587\uff0c<\/strong>\u672c\u6587\u901a\u8fc7\u5f15\u5165 Sn\u3001Ga \u548c In \u7b49\u4f4e\u7194\u70b9\u91d1\u5c5e\u53ef\u524a\u5f31\u7ed3\u5408\u5f3a\u5ea6\uff0c\u4ece\u800c\u964d\u4f4e\u6d3b\u5316\u80fd\uff0c\u4fc3\u8fdb\u94c2\u9530\u5408\u91d1\u50ac\u5316\u5242\u7684\u6709\u5e8f\u5316\u8fc7\u7a0b\u3002\u8fd9\u79cd\u7b56\u7565\u53ef\u4ee5\u5728\u6781\u4f4e\u7684\u6e29\u5ea6\u4e0b\u5236\u5907\u51fa\u9ad8\u94c2\u542b\u91cf\u7684 L10<\/sub>-Pt-M-M’ \u91d1\u5c5e\u95f4\u7eb3\u7c73\u6676\u4f53\uff0c\u4ece\u800c\u4fc3\u8fdb\u5927\u89c4\u6a21\u751f\u4ea7\u3002\u5176\u673a\u7406\u5305\u62ec Sn \u63ba\u6742\u3001\u4f4e\u914d\u4f4d\u8868\u9762\u6e38\u79bb\u539f\u5b50\u7684\u5f62\u6210\u548c\u6269\u6563\u4ee5\u53ca L10<\/sub> \u6210\u6838\u3002\u672c\u6587\u6240\u5f00\u53d1\u7684\u50ac\u5316\u5242\u5728\u5b9e\u9645\u6761\u4ef6\u4e0b\u8868\u73b0\u51fa\u826f\u597d\u7684\u6027\u80fd\uff0c\u5177\u6709\u9ad8\u7535\u6d41\u5bc6\u5ea6\u3001\u989d\u5b9a\u529f\u7387\u5bc6\u5ea6\u548c\u5faa\u73af\u540e\u6d3b\u6027\u4fdd\u6301\u7387\u3002L10<\/sub>-Pt-Ni-M’\/C \u548c L10<\/sub>-Pt-Co-M’\/C \u50ac\u5316\u5242\u5728\u71c3\u6599\u7535\u6c60\u5e94\u7528\u4e2d\u8868\u73b0\u51fa\u9ad8\u6027\u80fd\u548c\u9ad8\u7a33\u5b9a\u6027\u3002<\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>1\u00a0 Pt50<\/sub>M50-x<\/sub>M\u2019x<\/sub><\/strong>\u7684\u7ed3\u6784\u8868\u5f81<\/strong>\u00a0 \u00a92024 Springer Nature<\/strong><\/p>\n

Pt-Pt\u7684\u5e73\u5747\u914d\u4f4d\u6570\u9010\u6e10\u51cf\u5c11\uff0c\u800cPt-Ni\u7684\u5e73\u5747\u914d\u4f4d\u6570\u5219\u9010\u6e10\u589e\u52a0\uff0c\u8fd9\u8868\u660e\u539f\u5b50\u53d1\u751f\u4e86\u91cd\u6392\u548c\u7ed3\u6784\u6709\u5e8f\u5316\u3002\u4e0d\u540cPt-Ni\u5408\u91d1\u7684\u539f\u5b50\u5bf9\u5206\u5e03\u51fd\u6570\u5149\u8c31\u663e\u793a\u51fa\u4e0d\u540c\u7684\u5cf0\u503c\uff0c\u63ed\u793a\u4e86\u7ed3\u6784\u53d8\u5316\u548c\u952e\u957f\u3002\u5229\u7528\u539f\u4f4d\u52a0\u70ed HAADF-STEM \u65b9\u6cd5\u89c2\u5bdf\u4e86 Pt50<\/sub>Ni35<\/sub>Sn15<\/sub> NCs \u5728\u9ad8\u6e29\u4e0b\u7684\u7ed3\u6784\u6f14\u53d8\uff0c\u663e\u793a\u4e86\u4ece\u65e0\u5e8f\u7ed3\u6784\u5230\u6709\u5e8f\u7ed3\u6784\u7684\u8f6c\u53d8\u3002<\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>2\u00a0 Pt50<\/sub>Ni35<\/sub>Sn15<\/sub>\/C<\/strong>\u7eb3\u7c73\u6676\u5728\u76f8\u53d8\u8fc7\u7a0b\u4e2d\u7684<\/strong>X<\/strong>\u5c04\u7ebf\u5149\u8c31<\/strong>\u00a0 \u00a92024 Springer Nature<\/strong><\/p>\n

\u4f7f\u7528\u5dee\u793a\u626b\u63cf\u91cf\u70ed\u6cd5\u6d4b\u91cf\u4e86\u6709\u5e8f\u6e29\u5ea6\u548c\u6d3b\u5316\u80fd\u503c\u3002Pt-Pt\u548cPt-Ni\u7684\u5e73\u5747\u914d\u4f4d\u6570\u8868\u660e\u4e86\u539f\u5b50\u91cd\u6392\u548c\u7ed3\u6784\u6709\u5e8f\u5316\u3002\u539f\u5b50\u5bf9\u5206\u5e03\u51fd\u6570\u5149\u8c31\u663e\u793a\u4e86 A1-Pt50<\/sub>Ni35<\/sub>Sn15<\/sub>\/C \u548c L10<\/sub>– Pt50<\/sub>Ni35<\/sub>Sn15<\/sub>\/C \u4e2d\u4e0d\u540c\u914d\u4f4d\u58f3\u7684\u4e0d\u540c\u5cf0\u503c\uff0c\u5176\u4e2d L10<\/sub> \u7ed3\u6784\u7684\u5cf0\u503c\u4f4d\u7f6e\u5448\u8d1f\u79fb\u52a8\uff0c\u8868\u660e\u952e\u957f\u7f29\u77ed\u3002\u4e86\u89e3\u76f8\u53d8\u7684 HAADF-STEM \u65b9\u6cd5\u91c7\u7528\u52a0\u70ed\u539f\u5b50\u73af\u5f62\u6697\u573a\u626b\u63cf\u900f\u5c04\u7535\u5b50\u663e\u5fae\u955c\uff08HAADF-STEM\uff09\u7814\u7a76\u7ed3\u6784\u6f14\u53d8\u3002\u5728\u8f83\u4f4e\u6e29\u5ea6\u4e0b\uff0cPt50<\/sub>Ni35<\/sub>Sn15<\/sub> NCs \u4e2d\u51fa\u73b0\u4e86\u65e0\u5e8f\u7684 A1 \u7ed3\u6784\uff0c\u5e76\u786e\u5b9a\u4e86\u4f4e\u914d\u4f4d\u539f\u5b50\/\u4f4d\u70b9\u3002\u5728 400 \u2103 \u65f6\uff0c\u53ef\u770b\u5230\u79bb\u89e3\u81ea\u7531\u4f4d\u70b9\uff0c\u8868\u660e\u5411\u6709\u5e8f\u7ed3\u6784\u8fc7\u6e21\u3002<\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>3\u00a0 Pt50<\/sub>Ni35<\/sub>Sn15<\/sub><\/strong>\u548c<\/strong>Pt50<\/sub>Ni50<\/sub><\/strong>\u7eb3\u7c73\u6676\u5728\u76f8\u53d8\u8fc7\u7a0b\u4e2d\u7684\u539f\u4f4d\u52a0\u70ed<\/strong>HAADF-STEM<\/strong>\u56fe\u50cf<\/strong>\u00a0 \u00a92024 Springer Nature<\/strong><\/p>\n

\u91c7\u7528\u539f\u4f4d\u52a0\u70ed HAADF-STEM \u65b9\u6cd5\u63ed\u793a\u4e86\u76f8\u53d8\u8fc7\u7a0b\u3002\u5728 200 \u548c 300 \u91c7\u7528\u539f\u4f4d\u52a0\u70ed HAADF-STEM \u65b9\u6cd5\u63ed\u793a\u4e86\u76f8\u53d8\u8fc7\u7a0b\u3002\u5728 200 \u548c 300 \u00b0C \u65f6\uff0cPt50<\/sub>Ni35<\/sub>Sn15<\/sub> NCs \u4e2d\u51fa\u73b0\u4e86\u65e0\u5e8f\u7684 A1 \u7ed3\u6784\u3002\u5728\u8f83\u4f4e\u6e29\u5ea6\u4e0b\uff0c\u539f\u5b50\u6392\u5217\u5448\u73b0\u65e0\u5e8f\u7ed3\u6784\u3002\u5728 400 \u2103 \u65f6\uff0c\u89c2\u5bdf\u5230\u89e3\u79bb\u7684\u81ea\u7531\u539f\u5b50\uff0c\u8fd9\u6807\u5fd7\u7740\u76f8\u53d8\u8fc7\u7a0b\u7684\u4e34\u754c\u6e29\u5ea6\u3002 \u65f6\uff0cPt50<\/sub>Ni35<\/sub>Sn15<\/sub> NCs \u4e2d\u51fa\u73b0\u4e86\u65e0\u5e8f\u7684 A1 \u7ed3\u6784\u3002<\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>4\u00a0 <\/strong>\u9521\u4fc3\u8fdb\u7684\u6709\u5e8f\u5316\u8fc7\u7a0b\u673a\u5236<\/strong>\u00a0 \u00a92024 Springer Nature<\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>5\u00a0 <\/strong>\u4e0d\u540c\u50ac\u5316\u5242\u7684\u7535\u5316\u5b66\u548c\u71c3\u6599\u7535\u6c60\u6027\u80fd<\/strong>\u00a0 \u00a92024 Springer Nature<\/strong><\/p>\n

\u9521\u4fc3\u8fdb\u6709\u5e8f\u5316\u8fc7\u7a0b\u7684\u673a\u7406\u6d89\u53ca\u4e00\u79cd\u79f0\u4e3a\u4f4e\u7194\u70b9\u91d1\u5c5e\u8bf1\u5bfc\u952e\u5f3a\u5ea6\u524a\u5f31\uff08LMIBSW\uff09\u7684\u7b56\u7565\u3002\u8be5\u7b56\u7565\u65e8\u5728\u901a\u8fc7\u5f15\u5165\u4f4e\u7194\u70b9\u91d1\u5c5e\uff08\u5982\u9521\uff09\u6765\u524a\u5f31\u952e\u5f3a\u5ea6\uff0c\u4ece\u800c\u8c03\u8282\u5408\u91d1\u4f53\u7cfb\uff0c\u7279\u522b\u662f PtM\uff08M = Ni\u3001Co\u3001Fe\u3001Cu\u3001Zn\uff09\u7535\u50ac\u5316\u5242\u7684\u6d3b\u5316\u52bf\u5792\uff08Ea\uff09\u3002\u952e\u5f3a\u5ea6\u7684\u524a\u5f31\u964d\u4f4e\u4e86\u6d3b\u5316\u52bf\u5792\uff0c\u4fc3\u8fdb\u4e86\u5408\u91d1\u4f53\u7cfb\u7684 A1-L10<\/sub> \u6709\u5e8f\u5316\u8fc7\u7a0b\uff0c\u5e76\u663e\u8457\u964d\u4f4e\u4e86\u6709\u5e8f\u5316\u6e29\u5ea6\u3002<\/p>\n

\u4e0e PtCo i-NPs \u548c Pt3<\/sub>Co\/Co-N-C \u50ac\u5316\u5242\u76f8\u6bd4\uff0cL10<\/sub>-Pt50<\/sub>Ni35<\/sub>Ga15<\/sub>\/C \u8868\u73b0\u51fa\u66f4\u9ad8\u7684\u6027\u80fd\u3002\u5728\u4e34\u754c\u6392\u70ed\u6781\u9650\u4e0b\uff0c\u53ef\u4ea7\u751f 1.15 W cm-2<\/sup> \u7684\u989d\u5b9a\u529f\u7387\u5bc6\u5ea6\u3002\u8d85\u8fc7\u4e86\u7f8e\u56fd\u80fd\u6e90\u90e8 1 W cm-2<\/sup> \u7684\u76ee\u6807\uff0c\u5c55\u793a\u4e86\u71c3\u6599\u7535\u6c60\u7684\u5b9e\u9645\u5e94\u7528\u6f5c\u529b\u3002\u6709\u5e8f\u7ed3\u6784\u548c\u589e\u5f3a\u7684\u7535\u5b50\u529f\u51fd\u6570\u63d0\u9ad8\u4e86\u7a33\u5b9a\u6027\u3002\u63ba\u6742\u9521\u6216\u9553\u53ef\u964d\u4f4e\u8868\u9762\u80fd\uff0c\u9632\u6b62\u9897\u7c92\u805a\u96c6\u3002<\/p>\n

\u4e09\u3001\u3010\u79d1\u5b66\u542f\u8fea\u3011<\/strong><\/p>\n

\u603b\u4e4b\uff0c\u4f5c\u8005\u7684\u5de5\u4f5c\u91cd\u70b9\u662f\u662f\u524a\u5f31\u952e\u5f3a\u5ea6\uff0c\u4ee5\u4fc3\u8fdb\u94c2\u9530\u5408\u91d1\u5728\u4f4e\u6e29\u4e0b\u7684\u76f8\u53d8\uff0c\u4ece\u800c\u5b9e\u73b0\u9ad8\u6709\u5e8f\u5ea6\u91d1\u5c5e\u95f4\u50ac\u5316\u5242\u7684\u5408\u6210\u3002\u91d1\u5c5e\u952e\u5f3a\u5ea6\u662f\u63a7\u5236\u6d3b\u5316\u80fd\uff08Ea\uff09\u7684\u5173\u952e\uff0c\u5f15\u5165 Sn \u7b49\u4f4e\u7194\u70b9\u91d1\u5c5e\u53ef\u6709\u6548\u524a\u5f31 Pt-M \u5408\u91d1\u7684\u952e\u5f3a\u5ea6\uff0c\u4fc3\u8fdb\u6709\u5e8f\u5316\u8fc7\u7a0b\u3002\u9521\u4fc3\u8fdb\u7684\u6709\u5e8f\u5316\u8fc7\u7a0b\u6d89\u53ca\u4f4e\u914d\u4f4d\u8868\u9762\u6e38\u79bb\u539f\u5b50\u5728\u4e2d\u7b49\u6e29\u5ea6\u4e0b\u7684\u5f62\u6210\u548c\u6269\u6563\uff0c\u4ece\u800c\u5bfc\u81f4\u968f\u540e\u7684\u76f8\u6838\u5316\u3002\u4f4e\u6e29\u5408\u6210\u5bf9\u4e8e\u5927\u89c4\u6a21\u751f\u4ea7\u5177\u6709\u9ad8\u6709\u5e8f\u5ea6\u3001\u53ef\u63a7\u7c92\u5ea6\u548c\u9ad8\u94c2\u542b\u91cf\u7684\u94c2\u57fa\u91d1\u5c5e\u95f4\u50ac\u5316\u5242\u81f3\u5173\u91cd\u8981\u3002\u4f5c\u8005\u5f00\u53d1\u7684 40% L10<\/sub> -Pt50<\/sub>Ni35<\/sub>Ga15<\/sub>\/C \u50ac\u5316\u5242\u5728 HDV \u5e94\u7528\u4e2d\u975e\u5e38\u6709\u524d\u666f\uff0c\u5728 0.7 V \u4e0b\u5b9e\u73b0 1.67 A cm\u22122<\/sup> \u7684\u9ad8\u7535\u6d41\u5bc6\u5ea6\uff0c\u5e76\u5728\u6269\u5c5590000 \u6b21\u5faa\u73af\u540e\u4fdd\u6301 80% \u7684\u6027\u80fd\u3002\u8fd9\u4e00\u7814\u7a76\u6210\u679c\u4e0d\u4ec5\u63a8\u52a8\u4e86\u71c3\u6599\u7535\u6c60\u9886\u57df\u7684\u8fdb\u6b65\uff0c\u4e5f\u4e3a\u5176\u4ed6\u9886\u57df\u7684\u50ac\u5316\u5242\u8bbe\u8ba1\u548c\u5408\u6210\u63d0\u4f9b\u4e86\u65b0\u7684\u601d\u8def\u548c\u65b9\u6cd5\uff0c\u6709\u671b\u63a8\u52a8\u80fd\u6e90\u8f6c\u578b\u548c\u73af\u5883\u4fdd\u62a4\u7684\u5b9e\u73b0\u3002<\/p>\n

\u539f\u6587\u8be6\u60c5<\/strong>\uff1a<\/p>\n

Metal bond strength regulation enables large-scale synthesis of intermetallic nanocrystals for practical fuel cells. Nat. Mater. (2024).<\/p>\n

DOI:<\/em> 10.1038\/s41563-024-01901-4<\/em><\/p>\n

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