{"id":171746,"date":"2019-04-08T06:30:29","date_gmt":"2019-04-07T22:30:29","guid":{"rendered":"\/\/m.iemloyee.com\/?p=171746"},"modified":"2019-04-07T22:07:06","modified_gmt":"2019-04-07T14:07:06","slug":"%e3%80%90%e5%9b%bd%e5%a4%96%e7%a8%bf%e4%bb%b6%e3%80%91%e5%a8%81%e6%96%af%e5%ba%b7%e6%98%9f%e5%a4%a7%e5%ad%a6%e9%ba%a6%e8%bf%aa%e9%80%8a%e5%88%86%e6%a0%a1nat-commun-%ef%bc%9a%e5%93%aa%e4%ba%9b","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=171746","title":{"rendered":"\u5a01\u65af\u5eb7\u661f\u5927\u5b66\u9ea6\u8fea\u900a\u5206\u6821Nat. Commun.\uff1a\u54ea\u4e9b\u56e0\u7d20\u5236\u7ea6\u4e86\u6c27\u5316\u7269\u8868\u9762\u6c27\u4ea4\u6362\uff1f"},"content":{"rendered":"

\u3010\u7814\u7a76\u80cc\u666f\u3011<\/strong><\/p>\n

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\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n

\u8fd1\u65e5\uff0c\u5a01\u65af\u5eb7\u661f\u5927\u5b66\u9ea6\u8fea\u900a\u5206\u6821Dane D. Morgan\u6559\u6388<\/strong>\u5efa\u7acb\u4e86\u5177\u6709\u4ee3\u8868\u6027\u7684\u9634\u6781\u6750\u6599La0.5<\/sub>Sr0.5<\/sub>CoO3-\u03b4<\/sub>\u4e2d\u6c27\u4ea4\u6362\u7684\u5b9a\u91cf\u57fa\u672c\u53cd\u5e94\u6a21\u578b\u3002\u5728\u8fd0\u884c\u6761\u4ef6\u4e0b\uff0c\u7a33\u5b9a\u7684\uff08001\uff09-SrO\u8868\u9762\u4e0a\u6c27\u6c14\u4e0e\u6c27\u6c14\u7684\u7ed3\u5408\u901f\u7387\u4e3a\u6c27\u539f\u5b50\u6a2a\u5411\u548c\u6c27\u8868\u9762\u7a7a\u4f4d\u7684\u6269\u6563\u3002\u4f5c\u8005\u9884\u6d4b\uff0c\u4e9a\u7a33\u6001CoO2<\/sub>\u7aef\u4e0a\u7684\u9ad8\u7a7a\u4f4d\u6d53\u5ea6\u80fd\u591f\u4f7f\u7a7a\u5316\u8f85\u52a9O2<\/sub>\u79bb\u89e3\uff0c\u5176\u901f\u5ea6\u6bd4\u5bccSr (La,Sr)O\u7aef\u7684\u9650\u901f\u6b65\u9aa4\u5feb102<\/sup>-103<\/sup>\u500d\u3002\u7ed3\u679c\u8868\u660e\uff0c\u901a\u8fc7\u6291\u5236(La,Sr)O\u7aef\u548c\u7a33\u5b9a\u9ad8\u6d3b\u6027CoO2<\/sub>\u7aef\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u6c27\u4ea4\u6362\u6027\u80fd\u3002\u8be5\u6210\u679c\u8fd1\u65e5\u4ee5\u9898\u4e3a\u201cFactors controlling surface oxygen exchange in oxides<\/strong>\u201d\u53d1\u8868\u5728\u77e5\u540d\u671f\u520aNat. Commun.<\/strong>\u4e0a\u3002<\/p>\n

\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n

\u56fe\u4e00\uff1aLa0.5<\/sub>Sr0.5<\/sub>\u548cCoO3<\/sub>\uff08LSC-50\uff09\u7aef\u9762<\/strong>
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\n \uff08b\uff09\uff08001\uff09-BO2<\/sub>\uff08CoO2<\/sub>\uff09\u4f5c\u4e3aLSC-50\u7aef\u9762\u76848\u5c42\u5e73\u677f\u3002<\/p>\n

\u56fe\u4e8c\uff1a(001)- SrO -\u7aef\u548cCoO2<\/sub>\u7aef\u7684\u4e0d\u540cORR\u4e2d\u95f4\u4f53<\/strong>
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\n \uff08a\uff09\u5305\u62ecSrO\u7aefLSC\u8868\u9762\u7684\u6c27\u5438\u9644\u3001\u6c27\u79bb\u89e3\u548c\u6c27\u7ed3\u5408\u53cd\u5e94\u7684\u4ea7\u7269\uff1b
\n \uff08b\uff09\u5305\u62ecCoO2<\/sub>\u7aefLSC\u8868\u9762\u7684\u6c27\u5438\u9644\u3001\u6c27\u89e3\u79bb\u548c\u6c27\u7ed3\u5408\u53cd\u5e94\u7684\u4ea7\u7269\u3002<\/p>\n

\u56fe\u4e09\uff1a(001)-SrO\u7aef\u548cCoO2<\/sub>(001)\u7aef\u7684\u8868\u9762\u80fd\u91cf\u56fe\u666f<\/strong>
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\n \uff08b\uff09\u6c27\u5438\u9644\u3001\u89e3\u79bb\u548c\u5408\u5e76\u5230CoO2(001)\u7aef\u8868\u9762\u7684\u80fd\u91cf\u573a\uff0c\u6700\u7ec8\u8fdb\u5165LaSrCoO3 (LSC-50)\u9499\u949b\u77ff\u4f53\u4e2d\u3002<\/p>\n

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\n (c-d) 800\u00b0C (a)\u548c650\u00b0C (b)\u4e0b\uff0cLSC-50\u4ea4\u6362\u7cfb\u6570\u4e0epO2<\/sub>\u76f8\u5173\u7684\u5bf9\u5e94\u56fe<\/p>\n

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\n \u6c27\u5316\u8fd8\u539f\u53cd\u5e94\u901f\u7387\u662fSOFC\u64cd\u4f5c\u6761\u4ef6\u4e0b\u5178\u578b\u503c\u7684\u51fd\u6570\u3002\u6c34\u5e73\u865a\u7ebf\u8868\u793a\u7279\u5b9a\u6e29\u5ea6\u4e0b\u7684\u6781\u9650ORR\u7387\uff0c\u76f8\u5e94\u7684\u6781\u9650Ktr<\/sub>\u8868\u793a\u4e3ay = mx\u578b\u659c\u7ebf\uff0c\u659c\u7387= Ktr<\/sub>\u3002<\/p>\n

\u56fe\u516b\uff1aLa0.5<\/sub>Sr0.5<\/sub>CoO3<\/sub> (LSC-50)\u975e\u6784\u578b\u751f\u6210\u81ea\u7531\u80fd\u3002<\/strong>
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\n \u56fe\u5341\u4e00\uff1a\u6b63\u3001\u8d1f\u8fc7\u7535\u4f4d\u56fe<\/strong>
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\n \u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n

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\u6587\u732e\u94fe\u63a5\uff1aFactors controlling surface oxygen exchange in oxides<\/a> (Nat. Commun.<\/em>, 2019<\/strong>, DOI: 10.1038\/s41467-019-08674-4)<\/p>\n

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