{"id":179583,"date":"2019-07-05T11:50:14","date_gmt":"2019-07-05T03:50:14","guid":{"rendered":"\/\/m.iemloyee.com\/?p=179583"},"modified":"2019-07-04T21:50:30","modified_gmt":"2019-07-04T13:50:30","slug":"%e9%98%bf%e8%b4%a1%e5%9b%bd%e5%ae%b6%e5%ae%9e%e9%aa%8c%e5%ae%a4adv-energy-mater-%ef%bc%9ali-o2%e4%bd%93%e7%b3%bb%e4%b8%ad%ef%bc%8c%e8%bf%87%e7%94%b5%e4%bd%8d%e9%99%8d%e4%bd%8e%e4%b8%8e%e8%bf%87","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=179583","title":{"rendered":"\u963f\u8d21\u56fd\u5bb6\u5b9e\u9a8c\u5ba4Adv. Energy Mater.\uff1aLi-O2\u4f53\u7cfb\u4e2d\uff0c\u8fc7\u7535\u4f4d\u964d\u4f4e\u4e0e\u8fc7\u6c27\u5316\u9502\u7ed3\u6784\u8f6c\u53d8\u7684\u5173\u7cfb"},"content":{"rendered":"
\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n \u975e\u6c34\u6eb6\u5242Li-O2<\/sub>\u7535\u6c60\u662f\u57fa\u4e8e\u7535\u6781\u8868\u9762\u9502-\u6c27\u53cd\u5e94\uff082Li + O2<\/sub> \u2194 Li2<\/sub>O2<\/sub>\uff0cE\u03b8<\/sup> = 2.96 V vs. Li\/Li+<\/sup>\uff09\u7684\u65b0\u578b\u5316\u5b66\u7535\u6e90\u3002\u5176\u53ef\u9006\u7535\u5316\u5b66\u53cd\u5e94\u4f34\u968f\u56fa\u6001\u8fc7\u6c27\u5316\u9502\uff08Li2<\/sub>O2<\/sub>\uff09\u7684\u5f62\u6210\u4e0e\u5206\u89e3\uff0c\u5bf9\u5e94\u6c27\u6b63\u6781\u4e0a\u7684ORR\u548cOER\u8fc7\u7a0b\u3002\u56e0\u6b64\u5176\u5145\u653e\u7535\u8fc7\u7535\u4f4d\u4e3b\u8981\u4e0eLi2<\/sub>O2<\/sub>\u7684\u5f62\u6210\u548c\u5206\u89e3\u8fc7\u7a0b\u6709\u5173\u3002\u901a\u5e38\uff0cORR\u7684\u8fc7\u7535\u4f4d\u7ea6\u4e3a0.3 V\uff0cOER\u7684\u8fc7\u7535\u4f4d\u5927\u4e8e1.0 V\u3002\u5c3d\u7ba1\u4e4b\u524d\u6709\u5927\u91cf\u7684\u7814\u7a76\u8868\u660e\uff0c\u56fa\u6001Li2<\/sub>O2<\/sub>\u8f83\u4f4e\u7684\u7535\u5bfc\u7387\u3001\u8f83\u6162\u7684\u52a8\u529b\u5b66\u3001\u4e25\u91cd\u7684\u7c92\u5b50\u56e2\u805a\u4ee5\u53ca\u590d\u6742\u7684\u526f\u53cd\u5e94\u4ea7\u7269\u7b49\u90fd\u4f1a\u5bfc\u81f4\u4ea7\u751f\u9ad8\u7684\u8fc7\u7535\u4f4d\u3002\u4f46\u662f\u76ee\u524d\u5c1a\u672a\u6709\u5173\u4e8e\u548cLi2<\/sub>O2<\/sub>\u7ed3\u6784\u6f14\u53d8\u76f8\u5173\u7684\u7535\u5316\u5b66\u53cd\u5e94\u8fc7\u7a0b\u4e0e\u8fc7\u7535\u4f4d\u4e4b\u95f4\u5173\u7cfb\u7684\u8be6\u7ec6\u7814\u7a76\u3002\u6b64\u5916\uff0cOER\u7684\u5145\u7535\u673a\u5236\u4e5f\u4ecd\u4e0d\u660e\u786e\u3002\u4e3a\u4e86\u89e3\u51b3\u4e0a\u8ff0\u95ee\u9898\uff0c\u672c\u6587\u91c7\u7528Pt\u4fee\u9970\u7b56\u7565\u6765\u8c03\u6574\u6c27\u6b63\u6781\u7ed3\u6784\uff0c\u4ee5\u4f18\u5316\u7535\u6781\u7684\u7535\u50ac\u5316\u548c\u7535\u8f93\u8fd0\u6027\u80fd\u3002\u901a\u8fc7\u91c7\u7528\u8868\u9762\u6e85\u5c04\u5305\u8986\u548c\u672c\u4f53\u4f53\u76f8\u63ba\u6742\u4e24\u79cd\u4e0d\u540c\u7684\u6539\u6027\u65b9\u6cd5\uff0c\u663e\u8457\u964d\u4f4e\u4e86Li-O2<\/sub>\u7535\u6c60\u7684\u5145\u653e\u7535\u8fc7\u7535\u4f4d\u3002\u53e6\u5916\uff0c\u5229\u7528\u7535\u6c60\u539f\u4f4d\u8868\u5f81\u7ed3\u5408\u7406\u8bba\u8ba1\u7b97\u63a2\u7a76\u4e86\u7535\u5316\u5b66\u53cd\u5e94\u8fc7\u7a0b\u4e2dLi2<\/sub>O2<\/sub>\u7684\u751f\u957f\u4e0e\u5206\u89e3\u673a\u5236\uff0c\u63ed\u793a\u4e86\u8fc7\u7535\u4f4d\u4e0eLi2<\/sub>O2<\/sub>\u7ed3\u6784\u8f6c\u5316\u4e4b\u95f4\u7684\u8054\u7cfb\u3002<\/p>\n \u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n \u8fd1\u65e5\uff0c\u7f8e\u56fd\u963f\u8d21\u56fd\u5bb6\u5b9e\u9a8c\u5ba4<\/strong>\u7684\u9646\u4fca\u3001<\/strong>Cong Liu<\/em> <\/strong>\u548cKhalil Amine<\/em><\/strong>\uff08\u5171\u540c\u901a\u8baf\u4f5c\u8005\uff09<\/strong>\u7b49\u7814\u7a76\u5b66\u8005\uff0c\u901a\u8fc7\u5bf9\u6b63\u6781\u7ed3\u6784\u7684\u4fee\u9970\u6539\u6027\u663e\u8457\u964d\u4f4e\u4e86Li-O2<\/sub>\u7535\u6c60\u7684\u8fc7\u7535\u4f4d\uff080.4V\uff09\u3002\u4ed6\u4eec\u901a\u8fc7\u4f53\u76f8\u63ba\u6742\u6210\u529f\u5728\u6c2e\u63ba\u6742\u94b4@\u77f3\u58a8\u70ef\u5f02\u8d28\u7ed3\u6784\u4e2d\u5f15\u5165\u4e86\u9ad8\u5ea6\u5747\u5300\u7684Pt\u548cPt3<\/sub>Co\u7eb3\u7c73\u7ec4\u5206\u3002\u8be5\u7ed3\u6784\u8bbe\u8ba1\u80fd\u540c\u65f6\u63d0\u9ad8\u7535\u6781\u7684\u7535\u50ac\u5316\u4e0e\u7535\u8f93\u8fd0\u6027\u80fd\uff0c\u56e0\u6b64\u7535\u6c60\u8868\u73b0\u51fa\u4e86\u826f\u597d\u7684\u7535\u5316\u5b66\u6027\u80fd\u3002\u672c\u6587\u540c\u65f6\u63ed\u793a\u4e86\u4e0d\u540c\u7684\u8fc7\u7535\u4f4d\u662f\u7531Li2<\/sub>O2<\/sub>\u7684\u4e0d\u540c\u7ed3\u6784\u6f14\u53d8\u5f15\u8d77\u7684\uff0c\u8fd9\u5728\u5f88\u5927\u7a0b\u5ea6\u4e0a\u53d6\u51b3\u4e8ePt\u7684\u6539\u6027\u65b9\u5f0f\u3002\u8fd9\u79cd\u4f9d\u8d56\u6027\u4e3b\u8981\u5f52\u56e0\u4e8ePt\u7eb3\u7c73\u7ec4\u5206\u53ca\u5176\u5206\u6563\u6027\u5bf9Li2<\/sub>O2<\/sub>\u7684\u5f62\u6210\u4e0e\u5206\u89e3\u673a\u7406\u7684\u5f71\u54cd\u3002\u5bc6\u5ea6\u6cdb\u51fd\u7406\u8bba\u8ba1\u7b97\u63d0\u4f9b\u4e86Pt\u548cPt3<\/sub>Co\u5bf9\u7535\u6c60\u8fc7\u7535\u4f4d\u964d\u4f4e\u7684\u4fc3\u8fdb\u4f5c\u7528\u7684\u673a\u5236\u89c1\u89e3\u3002\u6700\u540e\uff0c\u672c\u6587\u603b\u7ed3\u4e86\u7535\u6c60\u8fc7\u7535\u4f4d\u4e0e\u7535\u5316\u5b66\u53cd\u5e94\u52a8\u529b\u5b66\u4e4b\u95f4\u7684\u5185\u5728\u8054\u7cfb\u3002\u76f8\u5173\u6210\u679c\u4ee5\u201c<\/strong>Insights into Structural Evolution of Lithium Peroxides with Reduced Charge Overpotential in Li\u2212O2<\/sub> System<\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728Advance Energy Materials<\/strong>\u4e0a\u3002<\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n \u56fe<\/strong> 1 Pt<\/strong>\u6539\u6027\u50ac\u5316\u5242\u7684\u793a\u610f\u56fe<\/strong><\/p>\n \u56fe<\/strong> 2 <\/strong>\u50ac\u5316\u5242\u7684\u6750\u6599\u7279\u6027<\/strong><\/p>\n \uff08a\uff09HEXRD\u56fe\u8c31\uff1b<\/p>\n \uff08b\uff09\u62c9\u66fc\u5149\u8c31\uff1b<\/p>\n \uff08c\uff09N 1s XPS\u5149\u8c31\uff1b<\/p>\n \uff08d\uff09Co K-edge\u7684XANES\u56fe\u8c31\uff1b<\/p>\n \uff08e\uff09Pt L3<\/sub>-edge\u7684XANES\u56fe\u8c31\uff1b<\/p>\n \uff08f\uff09Pt L3<\/sub>-edge\u7684EXAFS\u56fe\u8c31\u3002<\/p>\n \u56fe<\/strong> 3 <\/strong>\u50ac\u5316\u5242\u7684\u7ed3\u6784\u548c\u7ec4\u6210<\/strong><\/p>\n \uff08a-f\uff09\u6837\u54c1A(a, d)\uff0cB(b, e)\u548cC(c, f)\u7684TEM\u56fe\u50cf\uff1b<\/p>\n \uff08g-k\uff09\u6837\u54c1C\u7684HRTEM\u56fe\u50cf\u53ca\u5176SAED\u56fe\u6848\u3002<\/p>\n \u56fe<\/strong> 4 <\/strong>Swagelok<\/strong>\u578b<\/strong>Li-O2<\/sub><\/strong>\u7535\u6c60\u6b63\u6781\u7684\u7535\u5316\u5b66\u8868\u5f81<\/strong><\/p>\n \uff08a-c\uff09\u6837\u54c1A(a, d)\uff0cB(b, e)\u548cC(c, f)\u7684\u9009\u5b9a\u5faa\u73af\u7684\u521d\u59cb\u7535\u538b\u5206\u5e03\uff1b<\/p>\n \uff08d-f\uff09\u6837\u54c1A(a, d)\uff0cB(b, e)\u548cC(c, f)\u7684\u9009\u5b9a\u5faa\u73af\u540e\u7eed\u7535\u538b\u5206\u5e03\u3002<\/p>\n \u56fe<\/strong> 5 <\/strong>Li-O2<\/sub><\/strong>\u7535\u6c60\u4e2d\u7535\u5316\u5b66\u53cd\u5e94\u8fc7\u7a0b\u4e2d\u6b63\u6781\u7684\u7ed3\u6784\u8f6c\u53d8<\/strong><\/p>\n \uff08a\uff09\u6837\u54c1A(a)\u5145\u653e\u7535\u91cf\u4e4b\u540e\u7684SEM\u56fe\u50cf\uff1b<\/p>\n \uff08b\uff09\u6837\u54c1B(b)\u5145\u653e\u7535\u91cf\u4e4b\u540e\u7684SEM\u56fe\u50cf\uff1b<\/p>\n \uff08c\uff09\u6837\u54c1C(c)\u5145\u653e\u7535\u91cf\u4e4b\u540e\u7684SEM\u56fe\u50cf\u3002<\/p>\n \u56fe<\/strong> 6 <\/strong>\u653e\u7535\u540e\u6837\u54c1<\/strong>C<\/strong>\u6b63\u6781\u4e0a\u7684<\/strong>Li2<\/sub>O2<\/sub><\/strong>\u4ea7\u7269\u7684<\/strong>TEM<\/strong>\u56fe\u50cf\u548c<\/strong>SAED<\/strong>\u56fe<\/strong><\/p>\n \uff08a-c\uff09\u5728\u5149\u675f\u51fb\u4e2d\u524d(a)\uff0c\u5728\u5149\u675f\u51fb\u4e2d10s(b)\u548c30s(c)\u4e4b\u540e\u653e\u7535\u4ea7\u7269\u7684TEM\u56fe\u50cf\uff1b<\/p>\n \uff08d\uff0ce\uff09TEM\u56fe\u50cf\u7684SAED\u56fe\u6848\uff08d\u5bf9\u5e94\u4e8ea\uff0ce\u5bf9\u5e94\u4e8ec\uff09\uff1b<\/p>\n \uff08f-h\uff09\u6837\u54c1C\u7684HRTEM\u56fe\u50cf\uff0c\u7c92\u5f84\u5c3a\u5bf8\u5206\u5e03(f)\u548cPt3<\/sub>Co(200)(g)\u548cPt(111)(h)\u7684\u6676\u683c\u95f4\u8ddd\u3002<\/p>\n \u56fe<\/strong> 7 <\/strong>\u4e09\u7535\u6781<\/strong>Li-O2<\/sub><\/strong>\u7535\u6c60\u6b63\u6781\u7684\u7535\u5316\u5b66\u963b\u6297\u8c31\u8868\u5f81<\/strong><\/p>\n \uff08a\uff09OCV\u4e0b\uff0cNyquist\u56fe\uff1b<\/p>\n \uff08b\uff09\u7b49\u6548\u7535\u8def\u6a21\u578b\uff1b<\/p>\n \uff08c\uff09OCV\u4e0b\uff0c\u6b63\u6781\u7684\u963b\u6297\u503c\uff1b<\/p>\n \uff08d\uff09\u5728\u7b2c\u4e00\u6b21\u5faa\u73af\u671f\u95f4\uff0cRct<\/sub>\u548cRsuf<\/sub>\u6b63\u6781\u7684DOD\u548cSOC\u66f2\u7ebf\u3002<\/p>\n \u56fe<\/strong> 8 <\/strong>\u5bc6\u5ea6\u6cdb\u51fd\u8ba1\u7b97\u548c\u50ac\u5316\u673a\u7406\u7814\u7a76<\/strong><\/p>\n \uff08a-c\uff09\u4e09\u79cd\u50ac\u5316\u5242\u6d3b\u6027\u8868\u9762\u4e0a\u6c27\u7535\u6781\u53cd\u5e94\u7684\u8ba1\u7b97\u81ea\u7531\u80fd\u56fe\uff1b<\/p>\n \uff08d\uff09\u5728Pt3<\/sub>Co\uff08111\uff09\u8868\u9762\u4e0a\u7684Li4<\/sub>O4<\/sub>\u7c07\u7684\u4f18\u5316\u7ed3\u6784\uff1b<\/p>\n \uff08e\uff09Li-O2<\/sub>\u7535\u6c60\u7684\u5b9e\u9a8c\u7ed3\u679c\u548c\u5176\u4ed6\u50ac\u5316\u5242\u7684\u7535\u8377\u8fc7\u7535\u52bf\u5bf9\u6bd4\u56fe\uff1b<\/p>\n \uff08f\uff09\u6837\u54c1A\uff0cB\u548cC\u4f5c\u4e3a\u6b63\u6781\u7684Li-O2<\/sub>\u7535\u6c60\u7684\u9996\u6b21\u5b9e\u9a8c\u653e\u7535\/\u7535\u8377\u5206\u5e03\u3002<\/p>\n \u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n \u672c\u6587\u901a\u8fc7\u5408\u7406\u8bbe\u8ba1\u6b63\u6781\u7ed3\u6784\uff0c\u5728\u6c2e\u63ba\u6742\u94b4@\u77f3\u58a8\u70ef\u5f02\u8d28\u7ed3\u6784\u4e2d\u5d4c\u5165\u9ad8\u5ea6\u5747\u5300\u7684Pt\u548cPt3<\/sub>Co\u7eb3\u7c73\u9897\u7c92\uff0c\u663e\u8457\u964d\u4f4e\u4e86Li-O2<\/sub>\u7535\u6c60\u7684\u5145\u653e\u7535\u8fc7\u7535\u52bf\u3002\u8fd9\u79cd\u7ed3\u6784\u4f18\u5316\u63d0\u9ad8\u4e86\u6b63\u6781\u6750\u6599\u7684\u7535\u50ac\u5316\u548c\u7535\u8f93\u8fd0\u6027\u8d28\uff0c\u663e\u8457\u964d\u4f4e\u8fc7\u7535\u4f4d\uff0c\u4ece\u800c\u6539\u5584\u4e86\u7535\u6c60\u6027\u80fd\u3002\u6b64\u5916\uff0c\u901a\u8fc7\u5b9e\u9a8c\u89c2\u5bdf\u548c\u7406\u8bba\u8ba1\u7b97\u53d1\u73b0\u7535\u6c60\u8fc7\u7535\u4f4d\u548c\u7535\u5316\u5b66\u53cd\u5e94\u52a8\u529b\u5b66\u4e4b\u95f4\u7684\u5185\u5728\u5173\u7cfb\uff0c\u5176\u4e2d\u5305\u62ec\u8fc7\u7535\u4f4d\u4e0eLi2<\/sub>O2<\/sub>\u7684\u7ed3\u6784\u6f14\u5316\u606f\u606f\u76f8\u5173\u3002\u4e0d\u540c\u7684Pt\u6539\u6027\u65b9\u6cd5\uff0c\u5305\u62ec\u8868\u9762\u5305\u8986\u548c\u4f53\u76f8\u63ba\u6742\uff0c\u4f1a\u5bfc\u81f4\u4e3b\u4f53\u7535\u6781\u6750\u6599\u4e2dPt\u7684\u7eb3\u7c73\u7ec4\u5206\u548c\u6269\u6563\u6027\u8d28\u7684\u4e0d\u540c\uff0c\u4ece\u800c\u4f1a\u5f71\u54cd\u5176\u8868\u9762Li2<\/sub>O2<\/sub>\u7684\u5f62\u6210\u4e0e\u5206\u89e3\u673a\u5236\u7684\u4e0d\u540c\u3002\u7814\u7a76\u7ed3\u8bba\u8868\u660e\uff0c\u901a\u8fc7\u7eb3\u7c73\u7ea7\u4f53\u76f8\u63ba\u6742\u65b9\u6cd5\u6765\u8c03\u6574Li-O2<\/sub>\u7535\u6c60\u6c27\u6b63\u6781\u7ed3\u6784\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u51b3\u7535\u6c60\u8fc7\u7535\u4f4d\u8fc7\u9ad8\u7684\u95ee\u9898\u3002<\/p>\n
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