{"id":158887,"date":"2018-11-14T06:30:23","date_gmt":"2018-11-13T22:30:23","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=158887"},"modified":"2018-11-14T12:21:16","modified_gmt":"2018-11-14T04:21:16","slug":"%e6%96%b0%e5%8a%a0%e5%9d%a1%e5%9b%bd%e5%a4%a7%e4%bd%95%e9%94%a6%e9%9f%a6%ef%bc%88ghim-wei-ho%ef%bc%89-am%ef%bc%9a%e8%b0%83%e6%8e%a7%e6%99%b6%e9%9d%a2%e5%88%b6%e5%a4%87%e5%87%ba%e9%ab%98%e6%95%88","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=158887","title":{"rendered":"\u65b0\u52a0\u5761\u56fd\u5927\u4f55\u9526\u97e6\uff08Ghim Wei Ho\uff09 AM\uff1a\u8c03\u63a7\u6676\u9762\u5236\u5907\u51fa\u9ad8\u6548\u7684OER\u50ac\u5316\u5242 \u2014 \u03b1-Fe2O3 \u7eb3\u7c73\u6676\u4f53"},"content":{"rendered":"<p><strong><b>\u3010\u5f15\u8a00\u3011<\/b><\/strong><\/p>\n<p>\u7535\u5316\u5b66\u6790\u6c27\u53cd\u5e94Oxygen Evolution Reaction\uff08OER\uff09\u5728\u71c3\u6599\u7535\u6c60\u3001\u91d1\u5c5e\u7a7a\u6c14\u7535\u6c60\u4e2d\u90fd\u662f\u91cd\u8981\u7684\u534a\u53cd\u5e94\uff0c\u5728\u6c34\u7684\u50ac\u5316\u5206\u89e3\u4ee5\u53ca\u4e8c\u6c27\u5316\u78b3\u8fd8\u539f\u7b49\u8fc7\u7a0b\u4e2d\u4ea6\u8d77\u5230\u91cd\u8981\u4f5c\u7528\u3002\u7531\u4e8e\u8be5\u50ac\u5316\u53cd\u5e94\u8fc7\u7a0b\u8f83\u4e3a\u590d\u6742\uff08\u901a\u5e38\u662f\u56db\u7535\u5b50\u53c2\u4e0e\u8f6c\u79fb\uff09\uff0c\u56e0\u800c\u901a\u5e38\u9700\u8981\u8f83\u9ad8\u8fc7\u7535\u52bf\uff08overpotential\uff0c<em><i>\u03b7<\/i><\/em><sup>OER<\/sup>\uff09\u4ee5\u9a71\u52a8\u53cd\u5e94\u3002\u5f00\u53d1\u9ad8\u6548\uff0c\u7a33\u5b9a\u4e14\u5ec9\u4ef7\u7684OER\u50ac\u5316\u5242\u4ee3\u66ff\u8d35\u91d1\u5c5e\u57fa\uff08\u5982Ru, Ir\u7684\u6c27\u5316\u7269\uff09\u50ac\u5316\u5242\u56e0\u800c\u5177\u6709\u91cd\u8981\u610f\u4e49\u4e14\u5177\u6709\u6311\u6218\u6027\u3002\u6c27\u5316\u94c1\uff08\u5982<em><i>\u03b1<\/i><\/em>-Fe<sub>2<\/sub>O<sub>3<\/sub>\uff09\u4f5c\u4e3a\u6700\u4e30\u5bcc\uff0c\u5ec9\u4ef7\u7684\u8fc7\u6e21\u91d1\u5c5e\u6c27\u5316\u7269\u4e4b\u4e00\uff0c\u901a\u5e38\u88ab\u8ba4\u4e3a\u662f\u4e00\u79cd\u4f4e\u6548\u7684OER\u50ac\u5316\u5242\u3002\u4f5c\u4e3a\u4e00\u79cd\u5e26\u9699\u5408\u9002\u7684\u534a\u5bfc\u4f53\uff0c\u5b83\u66f4\u591a\u7684\u662f\u88ab\u4f5c\u4e3a\u5149\u7535\u5316\u5b66\u53cd\u5e94\u7684\u5149\u9633\u6781\u8fdb\u884c\u7814\u7a76\u3002\u4f46\u7531\u4e8e\u5176\u8f83\u5dee\u7684\u7535\u5b50\u8fc1\u79fb\u7387\u548c\u8f83\u77ed\u7684\u7a7a\u7a74\u6269\u6563\u8ddd\u79bb\uff0c\u56e0\u800c\u5bfc\u81f4\u5229\u7528\u6548\u7387\u4e5f\u8f83\u4f4e\u3002\u7136\u800c\uff0c\u6c27\u5316\u94c1\u81ea\u8eab\u5ec9\u4ef7\u4e14\u9ad8\u5ea6\u7a33\u5b9a\uff0c\u66f4\u91cd\u8981\u7684\u662f\u5176e<sub>g<\/sub>\u8f68\u9053\u5360\u636e\u7387\uff08\u4f5c\u4e3a\u6027\u80fd\u7684\u51b3\u5b9a\u56e0\u5b50\uff0c\u5373descriptor\uff09\u5177\u6709\u53ef\u8c03\u8282\u6027\uff0c\u56e0\u6b64\u5728OER\u50ac\u5316\u65b9\u9762\u5177\u6709\u5f88\u5927\u7684\u8c03\u63a7\u6f5c\u529b\u3002\u6b64\u524d\u5bf9\u6c27\u5316\u7269\u7684\u76f8\u5173DFT\u7406\u8bba\u8ba1\u7b97\u5de5\u4f5c\u8868\u660eOER\u8fc7\u7a0b\u4e2d\u7684\u4e24\u4e2a\u4e2d\u95f4\u4f53HOO*\u548cHO*\u7684\u5438\u9644\u80fd\u4e4b\u95f4\u5177\u6709\u7279\u5b9a\u7684\u5173\u7cfb\uff08\u0394G<sup>0<\/sup><sub>HOO*<\/sub>-\u0394G<sup>0<\/sup><sub>HO* <\/sub>= ~3.2 eV\uff09\uff0c\u56e0\u6b64OER \u8fc7\u7a0b\u4e2d\u7684\u0394G<sup>0<\/sup><sub>O*<\/sub>-\u0394G<sup>0<\/sup><sub>HO* <\/sub>\u51b3\u5b9a\u7740\u5176\u53cd\u5e94\u7684\u8fc7\u7535\u52bf\u03b7<sup>OER<\/sup>\uff0c\u5373\u5728\u6c27\u5316\u7269\u4e2d\u0394G<sup>0<\/sup><sub>O*<\/sub>-\u0394G<sup>0<\/sup><sub>HO*<\/sub>\u53ef\u88ab\u89c6\u4e3a\u53cd\u5e94\u7684descriptor\u3002\u5bf9<em><i>\u03b7<\/i><\/em><sup>OER<\/sup>\u548c\u0394G<sup>0<\/sup><sub>O*<\/sub>-\u0394G<sup>0<\/sup><sub>HO*<\/sub>\u4f5c\u56fe\u53d1\u73b0\u4e0d\u540c\u6c27\u5316\u7269\u5448\u73b0\u51fa\u706b\u5c71\u7684\u5173\u7cfb\uff0c\u800c\u0394G<sup>0<\/sup><sub>O*<\/sub>-\u0394G<sup>0<\/sup><sub>HO*<\/sub>\u5219\u9075\u5faaSabatier\u539f\u7406\uff0c\u5373\u706b\u5c71\u56fe\u4e2d\u8d8a\u9760\u8fd1\u5de6\u4fa7\uff0c\u4e0e\u6c27\u952e\u5408\u80fd\u529b\u8d8a\u5f3a\uff0c\u4ea7\u7269\u8d8a\u96be\u8131\u9644\uff0cHOO*\u8d8a\u96be\u5f62\u6210\uff1b\u800c\u8d8a\u9760\u8fd1\u53f3\u4fa7\uff0c\u5219\u4e0e\u6c27\u952e\u5408\u80fd\u529b\u8d8a\u5f31\uff0cHO*\u96be\u4ee5\u88ab\u6c27\u5316\uff1b\u800c\u53ea\u6709\u8d8a\u9760\u8fd1\u706b\u5c71\u9876\u70b9\u7684\u4f4d\u7f6e\u6700\u7406\u60f3\uff0c<em><i>\u03b7<\/i><\/em><sup>OER<\/sup>\u6700\u4f4e\u3002\u7136\u800c\uff0c\u503c\u5f97\u6ce8\u610f\u7684\u662f\u7edd\u5927\u591a\u6570\u7684DFT\u8ba1\u7b97\u5e76\u672a\u8868\u660e\u662f\u57fa\u4e8e\u54ea\u4e2a\u6216\u54ea\u4e9b\u6676\u9762\uff0c\u800c\u540c\u4e00\u91d1\u5c5e\u6c27\u5316\u7269\u7684\u4e0d\u540c\u6676\u9762\u7531\u4e8e\u5176\u539f\u5b50\u6392\u5e03\uff0c\u914d\u4f4d\u4ee5\u53ca\u672b\u7aef\u539f\u5b50\u79cd\u7c7b\u7686\u4e0d\u540c\uff0c\u56e0\u800c\u5e94\u5177\u6709\u4e0d\u540c\u7684\u6d3b\u6027\u3002\u8fd9\u79cd\u201c\u6676\u9762\u51b3\u5b9a\u6027\u80fd\u201c\u7684\u73b0\u8c61\u65e9\u5728\u4e00\u4e9b\u8d35\u91d1\u5c5e\uff08\u53ca\u5408\u91d1\uff09\u548c\u6c27\u5316\u7269\u4e4b\u4e8e\u7535\/\u5149\u7535\u5316\u5b66\u50ac\u5316\uff0c\u5149\u7535\u8f6c\u5316\uff0c\u9502\u6c27\u7535\u6c60\u7b49\u7814\u7a76\u9886\u57df\u4e2d\u6709\u6240\u8868\u73b0\uff0c\u800c\u5728OER\u50ac\u5316\u4e2d\u5374\u9c9c\u6709\u63d0\u53ca\u3002\u56e0\u6b64\uff0c\u7814\u7a76\u5355\u4e00\u56e0\u7d20\u6676\u9762\u5bf9\u4e8eOER\u7684<em><i>\u03b7<\/i><\/em><sup>OER<\/sup>\uff0c\u4ea6\u5373\u0394G<sup>0<\/sup><sub>O*<\/sub>-\u0394G<sup>0<\/sup><sub>HO* <\/sub>\u7684\u5f71\u54cd\u5177\u6709\u91cd\u8981\u610f\u4e49\uff0c\u5bf9\u4e8e\u5408\u7406\u8bbe\u8ba1\u66f4\u52a0\u6709\u6548\u7684OER\u50ac\u5316\u5242\u4e5f\u5177\u6709\u6307\u5bfc\u610f\u4e49\u3002<\/p>\n<p><strong><b>\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/b><\/strong><\/p>\n<p>\u8fd1\u65e5\uff0c<strong>\u65b0\u52a0\u5761\u56fd\u7acb\u5927\u5b66\uff08NUS\uff09\u7684Ghim Wei Ho\uff08\u4f55\u9526\u97e6\uff09\u8bfe\u9898\u7ec4<\/strong>\u63ed\u793a\u4e86\u5728\u8d64\u94c1\u77ff\u6c27\u5316\u94c1\uff08<em><i>\u03b1<\/i><\/em>-Fe<sub>2<\/sub>O<sub>3<\/sub>\uff09OER\u50ac\u5316\u4e2d\uff0c\u6676\u9762\u51b3\u5b9a\u4e86\u0394G<sup>0<\/sup><sub>O*<\/sub>-\u0394G<sup>0<\/sup><sub>HO* <\/sub>\uff0c\u5373descriptor\u3002\u4f5c\u8005\u7ed3\u5408\u9178\u523b\u8680\u91d1\u5c5e\u94c1\u4ee5\u53ca\u539f\u4f4d\u8fd8\u539f\uff08NaBH<sub>4<\/sub>\uff09\u7684\u65b9\u6cd5\u5236\u5907\u51fa\u4e00\u79cd\u9ad8\u6307\u6570\u9762\uff08012\uff09\u7eb3\u7c73\u6676\u4f53\u3002\u8be5\u5236\u5907\u65b9\u6cd5\u53ef\u4ee5\u6709\u6548\u6291\u5236\u4f20\u7edf\u65b9\u6cd5\u751f\u957f\u8fc7\u7a0b\u4e2d\u7eb3\u7c73\u6676\u8fc7\u9971\u548c\u5ea6\u7684\u51cf\u5c11\uff0c\u6709\u6548\u4fdd\u6301\u4e86\u9ad8\u6307\u6570\u9762\u3002 \u4e0e\u5176\u5b83\u65b9\u6cd5\u5236\u5907\u7684\uff08104\uff09\u548c\uff08110\uff09\u7eb3\u7c73\u6676\u4f53\uff08\u5c3a\u5bf8\u76f8\u4f3c\uff09\u76f8\u6bd4\uff0c\u8be5(012)\u7eb3\u7c73\u6676\u4f53\u8868\u73b0\u51fa\u4e86\u66f4\u52a0\u4f18\u5f02\u7684OER\u50ac\u5316\u6d3b\u6027\uff08<em><i>\u03b7<\/i><\/em><sub>10<\/sub><sup>OER <\/sup>\u4e3a317 mV\uff0cTafel\u659c\u7387\u4e3a58.5 mV dec<sup>-1<\/sup>\uff09\u3002DFT\u7406\u8bba\u8ba1\u7b97\u8868\u660e(104)\u6676\u9762\u4e0e\u6c27\u4e2d\u95f4\u7269\u7684\u7ed3\u5408\u592a\u5f31\uff0c\u800c\uff08110\uff09\u9762\u5219\u7ed3\u5408\u592a\u5f3a\uff0c\uff08012\uff09\u9762\u5904\u4e8e\u706b\u5c71\u56fe\u7684\u9876\u70b9\uff0c\u5177\u6709\u76f8\u5bf9\u66f4\u9002\u5b9c\u7684\u7ed3\u5408\u80fd\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u4ec5\u7528\u9178\u523b\u8680\u7684\u65b9\u6cd5\u5236\u5907\u51fa\u6765\u7684<em><i>\u03b1<\/i><\/em>-Fe<sub>2<\/sub>O<sub>3 <\/sub>\u7eb3\u7c73\u6676\u4f53(012-O)\u5177\u6709\u66f4\u9ad8\u7684Fe-O\u914d\u4f4d\u6570\uff0c\u8fd9\u5927\u5927\u51cf\u5c11\u4e86\u5176e<sub>g<\/sub>\u00a0\u8f68\u9053\u7535\u5b50\u6570\uff0c\u8fdb\u4e00\u6b65\u589e\u5f3a\u4e86OER\u8fc7\u7a0b\u4e2d\u5f31\u7684\u952e\u5408\u4f5c\u7528\uff0c \u4f7f\u5f97\u8be5\u7eb3\u7c73\u6676\u4f53\u5177\u6709\u6c27\u5316\u94c1\u6750\u6599\u4e2d\u6700\u9ad8\u7684OER\u6d3b\u6027\uff08<em><i>\u03b7<\/i><\/em><sub>10<\/sub><sup>OER <\/sup>\u4e3a305 mV\uff0cTafel\u659c\u7387\u4ec5\u4e3a51.8 mV dec<sup>-1<\/sup>\uff09\uff0c\u6253\u7834\u4e86\u201c\u6c27\u5316\u94c1\u5e76\u975e\u4e00\u79cd\u6709\u6548\u7684OER\u50ac\u5316\u6750\u6599\u201d\u7684\u56fa\u6709\u770b\u6cd5\u3002\u8be5\u6210\u679c\u4ee5\u9898\u4e3a\u201cIdentification of Facet-Governing Reactivity in Hematite for Oxygen Evolution \u201c\u53d1\u8868\u5728Advanced Materials\u4e0a\u3002<\/p>\n<p><strong><b>\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/b><\/strong><\/p>\n<p>\u56fe1.\u00a0\u7eb3\u7c73\u6676\u5355\u4f53\u8fc7\u9971\u548c\u5ea6\u7684\u8c03\u63a7\u793a\u610f\u56fe\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-158888 size-full aligncenter\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/11\/\u56fe\u72471-7.png\" alt=\"\" width=\"660\" height=\"491\" srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/11\/\u56fe\u72471-7.png 660w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/11\/\u56fe\u72471-7-300x223.png 300w\" sizes=\"(max-width: 660px) 100vw, 660px\" \/><br \/>\n \uff08a\uff09\u4f20\u7edf\u65b9\u6cd5\uff1b(b) \u9178\u523b\u8680\u65b9\u6cd5\u3002<\/p>\n<p>\u56fe2\u00a0\u7ec4\u5206\u786e\u8ba4\u53ca<em><i>\u03b1<\/i><\/em>-Fe<sub>2<\/sub>O<sub>3<\/sub>\u7eb3\u7c73\u6676\u4f53\u7684\u7ed3\u6784\u8868\u5f81\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-158889 size-full aligncenter\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/11\/\u56fe\u72472-7.png\" alt=\"\" width=\"650\" height=\"353\" srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/11\/\u56fe\u72472-7.png 650w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/11\/\u56fe\u72472-7-300x163.png 300w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><\/p>\n<p>(a) \u4e09\u79cd<em><i>\u03b1<\/i><\/em>-Fe<sub>2<\/sub>O<sub>3 <\/sub>\u7684XRD\u56fe\u8c31\uff1b\u00a0(b) \u9178\u523b\u8680(012) <em><i>\u03b1<\/i><\/em>-Fe<sub>2<\/sub>O<sub>3<\/sub>\u7684\u900f\u5c04\u7535\u955c\u56fe\u53ca\u5c3a\u5bf8\u5206\u5e03\uff1b(c) \u5355\u4e2a(012) <em><i>\u03b1<\/i><\/em>-Fe<sub>2<\/sub>O<sub>3<\/sub>\u00a0\u7684\u9009\u53d6\u7535\u5b50\u884d\u5c04\uff1b\u00a0(d) Fe \u548cO\u5143\u7d20\u5206\u5e03\uff1b\u00a0(e) \u5355\u4e2a(012) <em><i>\u03b1<\/i><\/em>-Fe<sub>2<\/sub>O<sub>3<\/sub>\u7684\u900f\u5c04\u7535\u955c\u56fe\u53ca\u7ed3\u6784\u6a21\u578b\uff1b\u00a0(f) (012) <em><i>\u03b1<\/i><\/em>-Fe<sub>2<\/sub>O<sub>3<\/sub>\u7684\u9ad8\u5206\u8fa8\u900f\u5c04\u7535\u955c\u56fe\uff1b(g)\u548c(h) (104)\u548c(110) <em><i>\u03b1<\/i><\/em>-Fe<sub>2<\/sub>O<sub>3<\/sub>\u7684\u900f\u5c04\u7535\u955c\u56fe\u3002<\/p>\n<p>\u56fe3\u00a0\u4ef7\u6001\u8868\u5f81\u548c\u6210\u952e\u7ed3\u6784\u7814\u7a76\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-158890 size-full aligncenter\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/11\/\u56fe\u72473-6.png\" alt=\"\" width=\"650\" height=\"519\" srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/11\/\u56fe\u72473-6.png 650w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/11\/\u56fe\u72473-6-300x240.png 300w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><\/p>\n<p>(a)\uff0c(b)\u5206\u522b\u4e3a(012) <em><i>\u03b1<\/i><\/em>-Fe<sub>2<\/sub>O<sub>3<\/sub>\u7684Fe 2p \u548c\u00a0O1s \u7684X\u5c04\u7ebf\u5149\u7535\u5b50\u80fd\u8c31\uff1b\u00a0(c) \u4e09\u79cd\u7eb3\u7c73\u6676\u4f53\u7684X\u5c04\u7ebf\u5438\u6536\u8fd1\u8fb9\u7ed3\u6784\u00a0(d) \u5bf9\u5e94\u7684\u5085\u91cc\u53f6\u53d8\u6362\u56fe\u3002<\/p>\n<p>\u56fe4\u00a0OER \u6027\u80fd\u7814\u7a76\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-158891 size-full aligncenter\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/11\/\u56fe\u72474-6.png\" alt=\"\" width=\"600\" height=\"456\" 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http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/11\/\u56fe\u72475-6-300x266.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>(a) OH*\u952e\u5408\u7684\u4f18\u5316\u7ed3\u6784\u56fe\uff1b\u00a0(b) OER\u4e2d\u95f4\u7269\u7684\u81ea\u7531\u80fd\u5bf9\u6bd4\uff1b\u00a0(c) \u6676\u9762\u548cdescriptor\u7684\u5173\u7cfb\u56fe\u3002\u00a0<\/p>\n<p><strong><b>\u3010\u5c0f\u7ed3\u3011<\/b><\/strong><\/p>\n<p>\u8be5\u5de5\u4f5c\u9610\u91ca\u4e86\u5728<em><i>\u03b1<\/i><\/em>-Fe<sub>2<\/sub>O<sub>3 <\/sub>\u7eb3\u7c73\u6676\u4f53\u4e2d\uff0c\u5355\u4e00\u56e0\u7d20\u6676\u9762\u5bf9\u4e8eOER\u50ac\u5316\u6027\u80fd\u7684\u5f71\u54cd\u3002DFT\u8ba1\u7b97\u4e0e\u5b9e\u9a8c\u7ed3\u679c\u8868\u660e\u4e0d\u540c\u6676\u9762\u5728OER\u8fc7\u7a0b\u4e2d\u5bf9\u0394G<sup>0<\/sup><sub>O*<\/sub>-\u0394G<sup>0<\/sup><sub>HO* <\/sub>\uff0c\u5373descriptor\u5177\u6709\u51b3\u5b9a\u6027\u4f5c\u7528\u3002\u8bba\u6587\u4e2d\u7684\u9178\u523b\u8680\u5236\u5907\u9ad8\u6307\u6570\u9762\u6676\u4f53\u7684\u65b9\u6cd5\u4e5f\u5177\u6709\u501f\u9274\u610f\u4e49\u3002\u8fd9\u79cd\u5bf9\u975e\u9ad8\u6d3b\u6027\u7eb3\u7c73\u6750\u6599\u8fdb\u884c\u8c03\u63a7\u4ee5\u53ca\u6784\u7b51\u9ad8\u6d3b\u6027\u8868\u9762\u7684\u7b56\u7565\uff0c\u5bf9\u4e8e\u4eca\u540e\u8bbe\u8ba1\u9ad8\u6548OER\u50ac\u5316\u5242\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u610f\u4e49\u3002<\/p>\n<p>\u6587\u732e\u94fe\u63a5\uff1aIdentification of Facet-Governing Reactivity in Hematite for Oxygen Evolution (Adv. 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