{"id":86113,"date":"2017-06-14T06:30:21","date_gmt":"2017-06-13T22:30:21","guid":{"rendered":"\/\/m.iemloyee.com\/?p=86113"},"modified":"2017-06-15T15:55:27","modified_gmt":"2017-06-15T07:55:27","slug":"nature-%e5%ad%90%e5%88%8a%ef%bc%9auh2o2%e5%8f%af%e9%99%8d%e4%bd%8e%e9%ab%98%e6%80%a7%e8%83%bdli-o2%e7%94%b5%e6%b1%a0%e7%a2%b3%e6%ad%a3%e6%9e%81%e7%9a%84%e5%85%85%e7%94%b5%e7%94%b5%e4%bd%8d","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=86113","title":{"rendered":"Nature \u5b50\u520a\uff1aUH2O2\u53ef\u964d\u4f4e\u9ad8\u6027\u80fdLi-O2\u7535\u6c60\u78b3\u6b63\u6781\u7684\u5145\u7535\u7535\u4f4d"},"content":{"rendered":"
\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n Li-O2<\/sub>\u7535\u6c60\uff0c\u4e5f\u88ab\u79f0\u4e3a\u9502\u7a7a\u6c14\u7535\u6c60\uff0c\u4e00\u79cd\u4ee5\u6c27\u6c14\u548c\u91d1\u5c5e\u9502\u4e3a\u6d3b\u6027\u539f\u6599\uff0c\u5728\u4e00\u5b9a\u6761\u4ef6\u4e0b\u4f7f\u4e24\u8005\u53d1\u751f\u7535\u5316\u5b66\u53cd\u5e94\uff0c\u5e76\u5c06\u4e24\u8005\u7684\u5316\u5b66\u80fd\u8f6c\u5316\u4e3a\u7535\u80fd\u7684\u65b0\u578b\u7535\u6c60\u88c5\u7f6e\u3002\u9502\u6c27\u7535\u6c60\u6bd4\u80fd\u91cf\u5bc6\u5ea6\u9ad8\uff0c\u53ef\u4ee5\u7528\u4e8e\u7535\u52a8\u6c7d\u8f66\u7684\u5236\u5907\u7b49\u3002\u9502\u6c27\u7535\u6c60\u7684\u7535\u5316\u5b66\u53cd\u5e94\u4e2d\u5e38\u5b58\u5728\u9ad8\u7535\u4f4d\u73b0\u8c61\uff0c\u8fd9\u4e0d\u4ec5\u4f1a\u5f15\u53d1\u7535\u89e3\u6db2\u7684\u4e25\u91cd\u53d8\u8d28\uff0c\u8fd8\u4f1a\u7f29\u77ed\u7535\u6c60\u7684\u5faa\u73af\u4f7f\u7528\u5bff\u547d\u3002\u76f8\u5173\u79d1\u7814\u4eba\u5458\u4e5f\u4e00\u76f4\u52aa\u529b\u5730\u505a\u7740\u5404\u79cd\u521b\u65b0\uff0c\u671f\u671b\u5c3d\u5feb\u89e3\u51b3\u9ad8\u7535\u4f4d\u95ee\u9898\uff0c\u4ee5\u4fc3\u8fdb\u9502\u6c27\u7535\u6c60\u7684\u5b9e\u7528\u5316\u3002<\/p>\n \u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n \u8fd1\u65e5\uff0c\u5357\u4eac\u5927\u5b66\u7684\u5468\u8c6a\u614e\u6559\u6388\uff08\u901a\u8baf\u4f5c\u8005\uff09\u7b49\u4eba\u5728Nature Communications<\/em>\u4e0a\u53d1\u8868\u4e86\u4e00\u7bc7\u540d\u4e3a\u201cOrganic hydrogen peroxide-driven low charge potentials for high-performance lithium-oxygen batteries with carbon cathodes\u201d\u7684\u6587\u7ae0\u3002\u76f8\u5173\u79d1\u7814\u4eba\u5458\u5c06H2<\/sub>O2<\/sub>\u4ee5\u6dfb\u52a0\u5242\u5f62\u5f0f\u5f15\u5165\u7535\u89e3\u6db2\u4e2d\uff0c\u5e76\u5bf9\u6c34\u7cfb\/\u975e\u6c34\u7cfbLi-O2<\/sub>\u7535\u6c60\u8fdb\u884c\u4e86\u4e00\u7cfb\u5217\u7814\u7a76\uff0c\u53d1\u73b0\uff1a\uff081\uff09\u5bf9\u4e8e\u6709LiOH\u4ea7\u7269\u7684\u6c34\u7cfb\u9502\u6c27\u7535\u6c60\uff0c\u5c06H2<\/sub>O2<\/sub>\u6c34\u6eb6\u6db2\u5f15\u5165\u7535\u89e3\u6db2\u53ef\u6709\u6548\u4fc3\u8fdb\u6c22\u6c27\u5316\u9502\u5316\u5408\u7269\u5728\u65e0\u50ac\u5316\u7684\u79d1\u7434\u9ed1\u78b3\u6b63\u6781\u4e0a\u4ee5\u8d85\u4f4e\u7684\u7535\u4f4d\u8fdb\u884c\u5206\u89e3\uff0c\u4e14\u8f83\u7535\u89e3\u6db2\u4e2d\u65e0H2<\/sub>O2<\/sub>\u5b58\u5728\u65f6\uff0c\u6c22\u6c27\u5316\u9502\u5316\u5408\u7269\u7684\u5206\u89e3\u66f4\u5b8c\u5168\uff1b\uff082\uff09\u5bf9\u4e8e\u6709Li2<\/sub>O2<\/sub>\u4ea7\u7269\u7684\u975e\u6c34\u7cfb\u9502\u6c27\u7535\u6c60\uff0c\u5c06\u5c3f\u7d20\u8fc7\u6c27\u5316\u6c22\uff08\u5728\u6709\u673a\u7269\u4e2d\u87af\u5408\u7684\u65e0\u6c34\u8fc7\u6c27\u5316\u6c22\u2014\u2014UH2<\/sub>O2<\/sub>\uff09\u4f5c\u4e3a\u6dfb\u52a0\u5242\u5f15\u5165G4\u57fa\u7535\u89e3\u6db2\uff0c\u53ef\u4ee5\u5728\u7535\u6d41\u5bc6\u5ea6\u4e3a100mAg-1<\/sup>KB<\/sub>\u65f6\u83b7\u5f97\u7ea63.26v\u7684\u4f4e\u5145\u7535\u7535\u4f4d\u3002\u6b64\u5916\uff0c\u7535\u6c60\u7ecf\u5145-\u653e\u7535\u5faa\u73af\u540e\uff0c\u9502\u91d1\u5c5e\u8d1f\u6781\u4e0a\u672a\u6c89\u79efLiOH\u5316\u5408\u7269\uff0c\u5373\u9502\u91d1\u5c5e\u8d1f\u6781\u672a\u88ab\u7834\u574f\uff0c\u7535\u6c60\u7684\u5faa\u73af\u5bff\u547d\u8f83\u4f7f\u7528G4\u57fa\u7535\u89e3\u6db2\u65f6\u6709\u4e00\u5b9a\u7684\u5ef6\u957f\u3002<\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n \u56fe<\/strong>1<\/strong>. <\/strong>H2<\/sub>O2<\/sub><\/strong>\u4fc3\u8fdb\u53cd\u5e94\u8fc7\u7a0b\u4e2d\u4ea7\u751f\u7684<\/strong>LiOH<\/strong>\u5316\u5408\u7269\u5206\u89e3<\/strong><\/p>\n a)\uff0e\u7535\u6d41\u5bc6\u5ea6\u4e3a100 mAg -1<\/sup>KB<\/sub>\u65f6\u7535\u6c60\u5145-\u653e\u7535\u7684\u7535\u4f4d\u66f2\u7ebf\uff1b<\/p>\n b)\uff0e\u5145\u7535\u8fc7\u7a0b\u4e2d\uff0c\u7531\u6ef4\u5b9a\u6cd5\u786e\u5b9a\u7684\u6c22\u6c27\u5316\u9502\u5316\u5408\u7269(nLiOH,c)\u6d88\u8017\u91cf\uff1b<\/p>\n c-e). \u6b63\u6781\u5728\u56fe(a)\u4e2d\u56db\u79cd\u72b6\u6001(i, ii, iii \u548c iv)\u4e0b\u7684XRD\u56fe\u8c31\uff1b<\/p>\n \u5728\u65e0\u6c34\u7535\u89e3\u6db2\u4e2d,Li-O2<\/sub>\u7535\u6c60\u9996\u6b21\u653e\u7535\u8fbe\u52301.50mAh\u7684\u7535\u91cf(\u76f8\u5f53\u4e8e\u7ea64,000 mAhg-1<\/sup>KB<\/sub>\u548c3.5 mAh cm -2<\/sup>)\uff0c\u5e76\u7531XRD\u8bc1\u660e\u4e86Li2<\/sub>O2<\/sub>\u7684\u4ea7\u751f\u3002\uff08\u56fec\uff09\uff1b\u5c06\u6b63\u6781\uff08a.i\uff09\u5728\u76f8\u5bf9\u6e7f\u5ea6\u4e3a75%\u7684\u6c29\u6c14\u4e2d\u4fdd\u63017\u5929\u540e\uff0cLi2<\/sub>O2<\/sub>\u8f6c\u5316\u4e3aLiOH \u548cLiOH\u00b7H2<\/sub>O\uff08\u56fed\uff09\uff1b\u5145\u7535\u7ed3\u675f\u540e\uff0c\u5f53\u7535\u89e3\u6db2\u4e2d\u5b58\u5728H2<\/sub>O2<\/sub>\u65f6\uff0cLiOH\u548cLiOH\u00b7H2<\/sub>O\u5728\u4f4e\u5145\u7535\u7535\u4f4d\u4e0b\u88ab\u53ef\u9006\u6c27\u5316\uff0c\u8bc1\u636e\u662f\u5b83\u4eec\u5728e\uff0civ\u4e2d\u7684\u884d\u5c04\u5cf0\u7684\u6d88\u5931\uff1b\u4f46\u662f\u5728\u4e0d\u542bH2<\/sub>O2<\/sub>\u7684\u7535\u89e3\u6db2\u4e2d\uff0cLiOH\u00b7H2<\/sub>O\u7ef4\u6301\u672a\u5206\u89e3\u72b6\u6001\uff08\u56fee\uff09\u3002<\/p>\n f). \u5728\u53cd\u5e94\u8fc7\u7a0b\u4e2d\u6d4b\u91cf\u7684Li-O2<\/sub>\u7535\u6c60\u5145\u7535\u7535\u4f4d\u66f2\u7ebf\u3002\uff08\u7535\u6c60\u914d\u6709\u5728\u53cd\u5e94\u8fc7\u7a0b\u4e2d\u5f62\u6210\u7684LiOH\/KB\u6b63\u6781\u548cG4-H2<\/sub>O-H2<\/sub>O2<\/sub>\u7535\u89e3\u6db2\uff09<\/p>\n g). \u4ee5100 mAg -1<\/sup>KB<\/sub>\u7684\u7535\u6d41\u5bc6\u5ea6\u5145\u7535\u65f6\uff0c\u7535\u6c60\u4e2dO2<\/sub>\u548cCO2<\/sub>\u7684\u542b\u91cf\u53d8\u5316\u901f\u7387\u3002\uff08\u7535\u6c60\u91c7\u7528\u4e86LiSICON \u819c\u9632\u6b62H2<\/sub>O\u901a\u8fc7\uff09<\/p>\n \u56fe<\/strong>2<\/strong>. <\/strong>\u4e0d\u540c\u5f62\u6001\u7684\u9884\u7f6e<\/strong>LiOH<\/strong>\u5316\u5408\u7269\u5206\u89e3\u7535\u4f4d<\/strong><\/p>\n a). \u79d1\u7434\u9ed1\u78b3\u6b63\u6781\u4e0a\u9884\u7f6e\u7684\u56fa\u6001LiOH\u5728\u7535\u6d41\u5bc6\u5ea6\u4e3a100 mAg-1<\/sup>KB<\/sub>\u65f6\u7684\u5206\u89e3\u7535\u4f4d\uff1b<\/p>\n b). \u5f15\u5165G4\u57fa\u7535\u89e3\u6db2\u4e2d\u7684\u6db2\u6001LiOH\u5728\u7535\u6d41\u5bc6\u5ea6\u4e3a100 mAg-1<\/sup>KB<\/sub>\u65f6\u7684\u5206\u89e3\u7535\u4f4d\u3002<\/p>\n \u56fe<\/strong>3<\/strong>. <\/strong>G4-H2<\/sub>O-H2<\/sub>O2<\/sub><\/strong>\u4f5c\u7535\u89e3\u8d28\u65f6\u7684\u7535\u6c60\u6027\u80fd\u4e0e\u9502\u91d1\u5c5e\u8d1f\u6781\u72b6\u6001<\/strong><\/p>\n a). \u666e\u901a\u914d\u7f6e\u7684Li-O2<\/sub>\u7535\u6c60\uff08KB\u57fa\u6b63\u6781\/\u7535\u89e3\u8d28\u6e17\u900f\u578b\u73bb\u7483\u7ea4\u7ef4\u9694\u819c\/\u9502\u91d1\u5c5e\u8d1f\u6781\uff09\u4ee5G4-H2<\/sub>O-H2<\/sub>O2<\/sub>\u4e3a\u7535\u89e3\u6db2\u65f6\u7535\u5316\u5b66\u53cd\u5e94\u793a\u610f\u56fe\uff1b<\/p>\n b). \u7535\u89e3\u6db2\u4e2d\u542b\u6c34\u91cf\u4e3a5,000 p.p.m\u65f6Li-O2<\/sub>\u7535\u6c60\u7684\u5faa\u73af\u6027\u80fd\u53d8\u5316\u56fe\uff1b<\/p>\n c). \u5728\u542b\u6c34\u91cf\u4e3a5,000 p.p.m\u7684G4-H2<\/sub>O-H2<\/sub>O2<\/sub>\u7535\u89e3\u8d28\u4e2d\u5145-\u653e\u7535\u5faa\u73af\u540e\uff0c\u9502\u91d1\u5c5e\u8d1f\u6781\u7684XRD\u56fe\u6837\uff1b<\/p>\n d). \u5728\u542b\u6c34\u91cf\u4e3a5,000 p.p.m\u7684G4-H2<\/sub>O-H2<\/sub>O2<\/sub>\u7535\u89e3\u8d28\u4e2d\u5145-\u653e\u7535\u5faa\u73af\u540e\uff0c\u9502\u91d1\u5c5e\u8d1f\u6781\u7684\u5b9e\u7269\u7167\u7247\u3002<\/p>\n \u56fe<\/strong>4<\/strong>. <\/strong>G4-UH2<\/sub>O2<\/sub><\/strong>\u4f5c\u7535\u89e3\u8d28\u65f6\u7684\u7535\u6c60\u6027\u80fd\u4e0e\u9502\u91d1\u5c5e\u8d1f\u6781\u72b6\u6001<\/strong><\/p>\n a). \u666e\u901a\u914d\u7f6e\u7684Li-O2<\/sub>\u7535\u6c60\uff08KB\u57fa\u6b63\u6781\/\u7535\u89e3\u8d28\u6e17\u900f\u578b\u73bb\u7483\u7ea4\u7ef4\u9694\u819c\/\u9502\u91d1\u5c5e\u8d1f\u6781\uff09\u4ee5G4-UH2<\/sub>O2<\/sub>\u4f5c\u7535\u89e3\u6db2\u7684\u7535\u5316\u5b66\u53cd\u5e94\u793a\u610f\u56fe\uff1b<\/p>\n b). \u4ee5G4-UH2<\/sub>O2<\/sub>\u4f5c\u7535\u89e3\u6db2\u65f6\uff0cLi-O2<\/sub>\u7535\u6c60\u5728\u4e0d\u540c\u7535\u6d41\u5bc6\u5ea6\u4e0b\u7684\u5145-\u653e\u7535\u7535\u4f4d\u66f2\u7ebf\uff1b<\/p>\n \u7535\u6d41\u5bc6\u5ea6\u4e3a100mAg-1<\/sup>KB<\/sub>\u65f6\u83b7\u5f97\u6700\u4f4e\u7684\u5145\u7535\u7535\u4f4d3.26v\uff08\u8fc7\u7535\u4f4d0.30v\uff09\uff1b<\/p>\n c). \u5728G4-UH2<\/sub>O2<\/sub>\u7535\u89e3\u6db2\u4e2d\u5145-\u653e\u7535\u5faa\u73af\u540e\u9502\u91d1\u5c5e\u8d1f\u6781\u7684XRD\u56fe\u6837\uff1b<\/p>\n d). \u5728G4-UH2<\/sub>O2<\/sub>\u7535\u89e3\u6db2\u4e2d\u5145-\u653e\u7535\u5faa\u73af\u540e\u9502\u91d1\u5c5e\u8d1f\u6781\u7684\u5b9e\u7269\u7167\u7247\u3002<\/p>\n \u56fe<\/strong>5<\/strong>. <\/strong>G4-UH2<\/sub>O2<\/sub><\/strong>\u7535\u89e3\u6db2\u4e2d\uff0c\u4e0d\u540c\u72b6\u6001\u4e0b\u6b63\u6781\u7684<\/strong>XRD<\/strong>\u56fe\u6837\u548c<\/strong>SEM<\/strong>\u56fe\u50cf<\/strong><\/p>\n a). \u539f\u59cb\u6001\/\u653e\u7535\u540e\/\u5145\u7535\u540e\u7684\u6b63\u6781XRD\u56fe\u6837\uff1b<\/p>\n b). \u539f\u59cb\u6b63\u6781\u7684SEM\u56fe\u50cf\uff1bc).\u653e\u7535\u540e\u6b63\u6781\u7684SEM\u56fe\u50cf\uff1bd).\u518d\u5145\u7535\u540e\u6b63\u6781\u7684SEM\u56fe\u50cf\u3002<\/p>\n \u56fe6. <\/strong>\u4ee5<\/strong>G4-UH2<\/sub>O2<\/sub><\/strong>\u4e3a\u7535\u89e3\u6db2\u7684<\/strong>Li-O2<\/sub><\/strong>\u7535\u6c60\u5145-\u653e\u7535\u8fc7\u7a0b\u7684\u53ef\u9006\u6027\u80fd<\/strong><\/p>\n a). \u53cd\u5e94\u8fc7\u7a0b\u4e2d\u6d4b\u91cf\u7684Li-O2<\/sub>\u7535\u6c60\u5145-\u653e\u7535\u7535\u4f4d\u66f2\u7ebf\uff1b<\/p>\n b). \u5145\u7535\u65f6\u7535\u6c60\u4e2dO2<\/sub>\u548cCO2<\/sub>\u7684\u542b\u91cf\u53d8\u5316\u901f\u7387\uff1b<\/p>\n c). \u5728\u653e\u7535\u8fc7\u7a0b\u4e2d\uff0c\u901a\u8fc7\u6ef4\u5b9a\u6d4b\u91cf\u83b7\u5f97\u7684Li2<\/sub>O2<\/sub>\u751f\u6210\u91cf\uff08nLi2<\/sub>O2<\/sub>,d\uff09\u53d8\u5316\u66f2\u7ebf\uff1b<\/p>\n d). \u5728\u5145\u7535\u8fc7\u7a0b\u4e2d\uff0c\u901a\u8fc7\u6ef4\u5b9a\u6d4b\u91cf\u83b7\u5f97\u7684Li2<\/sub>O2<\/sub>\u6d88\u8017\u91cf\uff08nLi2<\/sub>O2<\/sub>,c\uff09\u53d8\u5316\u66f2\u7ebf\u3002<\/p>\n \u56fe<\/strong>7<\/strong>. <\/strong>Li-O2<\/sub><\/strong>\u7535\u6c60\u5206\u522b\u4ee5<\/strong>G4-UH2<\/sub>O2<\/sub><\/strong>\u548c<\/strong>G4<\/strong>\u4e3a\u7535\u89e3\u6db2\u65f6\u7684\u5faa\u73af\u6027\u80fd<\/strong><\/p>\n a). \u4ee5G4-UH2<\/sub>O2<\/sub>\u4e3a\u7535\u89e3\u6db2\u65f6\u7535\u6c60\u5145-\u653e\u7535\u7535\u4f4d\u66f2\u7ebf\uff1b<\/p>\n b). \u4ee5G4\u4e3a\u7535\u89e3\u6db2\u65f6\u7535\u6c60\u5145-\u653e\u7535\u7535\u4f4d\u66f2\u7ebf\uff1b<\/p>\n c). \u76f8\u5e94\u7684\u5145-\u653e\u7535\u7aef\u7535\u538b\u968f\u5faa\u73af\u6b21\u6570\u7684\u53d8\u5316\u3002<\/p>\n \u3010<\/strong>\u5c0f<\/strong>\u7ed3<\/strong>\u3011<\/strong><\/p>\n \u5728\u8fd9\u9879\u5de5\u4f5c\u4e2d\uff0c\u79d1\u7814\u4eba\u5458\u5c06H2<\/sub>O2<\/sub>\u6c34\u6eb6\u6db2\u5f15\u8fdb\u7535\u89e3\u6db2\u540e\uff0cLi-O2<\/sub>\u7535\u6c60\u5145\u7535\u7535\u4f4d\u964d\u81f3\u7ea63.50v\uff0c\u5e76\u4e14\u5145\u7535\u91cf\u4e0a\u5347\u81f31.40mAh\u3002\u8003\u8651\u5230\u4f7f\u7528\u4e86\u8f83\u5927\u7535\u5316\u5b66\u963b\u6297\u7684LISICON\uff0c3.50v\u8fd9\u4e2a\u503c\u5df2\u7ecf\u5f88\u4f4e\u4e86\u3002H2<\/sub>O2<\/sub>\u5728\u8f85\u52a9LIOH\u5206\u89e3\u65f6\u8fd8\u5e26\u6765\u8d85\u8fc793%\u7684\u518d\u5145\u7535\u5e93\u4f26\u6548\u7387\u3002\u5c06H2<\/sub>O2<\/sub>\u4ee5\u6709\u673a\u87af\u5408\u6001\u7684UH2<\/sub>O2<\/sub>\u5f15\u5165\u7535\u89e3\u6db2\uff0c\u4e0d\u4ec5\u89c4\u907f\u4e86\u6c34\u5206\u5b50\u53ef\u80fd\u5e26\u6765\u7684\u526f\u53cd\u5e94\uff0c\u4fdd\u62a4\u4e86\u9502\u91d1\u5c5e\u8d1f\u6781\uff0c\u8fd8\u4fdd\u8bc1\u4e86H2<\/sub>O2<\/sub>\u80fd\u964d\u4f4e\u5145\u7535\u7535\u4f4d\u548c\u5ef6\u957f\u7535\u6c60\u5faa\u73af\u5bff\u547d\u7684\u7279\u6027\u3002\u5728\u9009\u62e9G4-UH2<\/sub>O2<\/sub>\u4f5c\u7535\u89e3\u6db2\u65f6\u83b7\u5f97\u7684\u7ea63.26v\u4f4e\u5145\u7535\u7535\u4f4d\u662f\u76ee\u524d\u76f8\u5173\u7814\u7a76\u4e2d\u6240\u83b7\u5f97\u7684\u5b9e\u9a8c\u5ba4\u6700\u5c0f\u503c\u3002\u5468\u8c6a\u614e\u6559\u6388\u7b49\u4eba\u7684\u7814\u7a76\u53d1\u73b0\u4e3a\u63d0\u9ad8Li-O2<\/sub>\u7535\u6c60\u6027\u80fd\u7684\u76f8\u5173\u7814\u7a76\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5177\u6709\u542f\u53d1\u6027\u7684\u601d\u8def\u3002<\/p>\n \u6587\u732e\u94fe\u63a5\uff1a<\/strong>Organic hydrogen peroxide-driven low charge potentials for high-performance lithium-oxygen batteries with carbon cathodes. <\/a>(Nat. Commun., 2017, DOI:10.1038\/ncomms15607)<\/p>\n \u672c\u6587\u7531\u6750\u6599\u4eba\u7f16\u8f91\u90e8\u65b0\u4eba\u7ec4\u8c22\u5143\u6797\u7f16\u8bd1\uff0c\u9ec4\u8d85\u5ba1\u6838\uff0c\u70b9\u6211\u52a0\u5165\u6750\u6599\u4eba\u7f16\u8f91\u90e8<\/a>\u3002<\/p>\n
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