{"id":77082,"date":"2017-04-26T06:30:22","date_gmt":"2017-04-25T22:30:22","guid":{"rendered":"\/\/m.iemloyee.com\/?p=77082"},"modified":"2017-04-23T20:27:58","modified_gmt":"2017-04-23T12:27:58","slug":"%e6%9d%8e%e4%ba%9a%e6%a0%8b%e9%99%a2%e5%a3%abangew-chem-int-ed-%ef%bc%9a%e8%b4%9f%e8%bd%bd%e6%9c%89%e5%ad%a4%e7%ab%8bfe%e5%8d%95%e5%8e%9f%e5%ad%90%e7%9a%84n%e6%8e%ba%e6%9d%82%e7%9a%84%e5%a4%9a","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=77082","title":{"rendered":"\u674e\u4e9a\u680b\u9662\u58ebAngew. Chem. Int. Ed.\uff1a\u8d1f\u8f7d\u6709\u5b64\u7acbFe\u5355\u539f\u5b50\u7684N\u63ba\u6742\u7684\u591a\u5b54\u78b3\u6750\u6599\u53ef\u4f5c\u4e3a\u6c27\u8fd8\u539f\u53cd\u5e94\u7684\u9ad8\u6548\u7535\u50ac\u5316\u5242"},"content":{"rendered":"

\u3010\u5f15\u8a00\u3011<\/strong><\/span><\/p>\n

\u7531\u4e8e\u7535\u5316\u5b66\u6c27\u8fd8\u539f\u53cd\u5e94(oxygen reduction reaction ,ORR)\u5728\u80fd\u6e90\u8f6c\u5316\u548c\u50a8\u5b58\u65b9\u9762\u7684\u91cd\u8981\u5e94\u7528\uff0c\u8fd1\u5e74\u6765\u4eba\u4eec\u5bf9\u5b83\u7684\u5173\u6ce8\u65e5\u76ca\u5bc6\u5207\u3002\u8d35\u91d1\u5c5e\u65cf\u6750\u6599(precious-metal-group,PMG)\u901a\u5e38\u662fORR\u53cd\u5e94\u6709\u6548\u7684\u7535\u50ac\u5316\u5242\uff0c\u7136\u800c\u5b83\u7684\u9ad8\u6210\u672c\u3001\u4f4e\u50a8\u91cf\u3001\u4e0d\u7a33\u5b9a\u5e76\u4e14\u5bf9\u7532\u9187\u8010\u53d7\u529b\u4f4e\u7684\u7279\u6027\u6781\u5927\u7684\u9650\u5236\u4e86\u5b83\u7684\u53d1\u5c55\u3002\u8fd1\u6765\uff0c\u94c1\u57fa\u6750\u6599\u5df2\u7ecf\u9010\u6e10\u6210\u4e3a\u66ff\u4ee3PMG\u6700\u6709\u524d\u666f\u7684\u50ac\u5316\u5242\u3002\u7136\u800c\uff0c\u5927\u591a\u6570\u94c1\u57fa\u6750\u6599\u7684\u7814\u7a76\u5c1a\u672a\u5b8c\u5584\uff0c\u5e76\u4e14\u8981\u60f3\u7528\u4e8e\u5b9e\u9645\u751f\u4ea7\uff0c\u5b83\u7684\u53cd\u5e94\u6027\u5fc5\u987b\u5f97\u5230\u8fdb\u4e00\u6b65\u7684\u63d0\u5347\u3002\u4f17\u6240\u5468\u77e5\uff0c\u63d0\u5347\u50ac\u5316\u5242\u66b4\u9732\u5728\u5916\u7684\u53cd\u5e94\u6d3b\u6027\u4f4d\u70b9\u7684\u6570\u91cf\uff0c\u80fd\u63d0\u9ad8\u50ac\u5316\u5242\u7684\u53cd\u5e94\u6d3b\u6027\u3002\u800c\u5355\u539f\u5b50\u50ac\u5316\u5242(Single-atom catalysts,SACs)\u7684\u4f53\u79ef\u6700\u5c0f\uff0c\u539f\u5b50\u5229\u7528\u7387\u6700\u9ad8\uff0c\u66b4\u9732\u5728\u5916\u7684\u53cd\u5e94\u6d3b\u6027\u4f4d\u70b9\u6700\u591a\uff0c\u88ab\u8ba4\u4e3a\u662f\u672a\u6765\u65b0\u7684\u7814\u7a76\u70ed\u70b9\u3002\u4f46\u662f\uff0c\u5982\u4f55\u5728\u5236\u5907\u5355\u539f\u5b50\u50ac\u5316\u5242\u7684\u8fc7\u7a0b\u4e2d\u907f\u514d\u5355\u539f\u5b50\u7684\u56e2\u805a\u548c\u8fc1\u79fb\u4ecd\u7136\u662f\u4e00\u4e2a\u5de8\u5927\u7684\u6311\u6218\u3002<\/p>\n

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

2017\u5e744\u670812\u65e5\u6e05\u534e\u5927\u5b66\u674e\u4e9a\u680b\u9662\u58eb\u548c\u738b\u5b9a\u80dc\u6559\u6388<\/strong>\u7684\u7814\u7a76\u56e2\u961f\u5728Angew. Chem. Int. Ed.\u53d1\u8868\u4e86\u4e00\u7bc7\u9898\u4e3a\u201cIsolated Single Iron Atoms Anchored on N-Doped Porous Carbon as an Efficient Electrocatalyst for the Oxygen Reduction Reaction\u201d\u7684\u6587\u7ae0\u3002\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u4ed6\u4eec\u901a\u8fc7\u5206\u5b50\u7b3c\u5c01\u88c5\u524d\u9a71\u4f53\u800c\u540e\u70ed\u89e3\u7684\u7b56\u7565\uff0c\u5408\u6210\u51fa\u4e86\u4e00\u79cd\u5bf9ORR\u53cd\u5e94\u6027\u826f\u597d\u7684\u9ad8\u7a33\u5b9a\u6027\u7684\u5b64\u7acbFe\u5355\u539f\u5b50\u50ac\u5316\u5242\u3002\u8fd9Fe\u5355\u539f\u5b50\u79cd\u50ac\u5316\u5242\u4e0d\u4ec5\u6709\u6781\u9ad8\u7684\u53cd\u5e94\u6d3b\u6027\uff0c\u8fd8\u6709\u826f\u597d\u7684\u7532\u9187\u8010\u53d7\u6027\u548c\u7a33\u5b9a\u6027\uff0c\u53ef\u4ee5\u5f88\u597d\u7684\u4ee3\u66ff\u73b0\u6709\u7684\u8d35\u91d1\u5c5e\u50ac\u5316\u5242\u3002<\/p>\n

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

\u56fe1 \u5b64\u7acbFe\u5355\u539f\u5b50\u50ac\u5316\u5242\u7684\u5236\u5907<\/strong><\/span><\/p>\n

\"\"<\/p>\n

(a)Fe-ISAs\/CN\u7684\u5236\u5907\u8fc7\u7a0b<\/p>\n

(b)TEM,(c) HAADF-STEM,\u6839\u636e\u5143\u7d20\u5206\u5e03,\u9ec4\u8272\u4e3aFe,\u7ea2\u8272\u4e3aC,\u6a59\u8272\u4e3aN<\/p>\n

(d),(e)HAADF-STEM,\u7ea2\u8272\u5708\u4e2d\u5373\u4e3a\u5355\u4e2aFe\u539f\u5b50\u3002<\/p>\n

\u8bf4\u660e<\/strong>\uff1a<\/span>\u7814\u7a76\u56e2\u961f\u91c7\u7528\u7a7a\u8154\u76f4\u5f84\u4e3a11.6 \u00c5\uff0c\u5b54\u5f84\u4e3a3.4 \u00c5\u7684\u7c7b\u6cb8\u77f3\u54aa\u5511\u916f\u9aa8\u67b6\u5316\u5408\u7269(eolitic imidazolate frameworks,ZIF-8)\u4e3a\u5206\u5b50\u7b3c\uff0c\u7528\u4e8e\u6355\u83b7\u91d1\u5c5e\u524d\u9a71\u4f53Fe(acac)3 <\/sub>\uff08\u5206\u5b50\u76f4\u5f84\u4e3a9.7 \u00c5\uff09\u3002\u4e24\u8005\u6df7\u5408\u4e4b\u540e\uff0c\u5206\u5b50\u7b3c\u4e2d2-\u7532\u57fa\u54aa\u5511\u4e0eZn2+<\/sup> \u548cFe(acac)3<\/sub>\u53d1\u751f\u4f5c\u7528\uff0c\u540c\u65f6\u7531\u4e8e\u5206\u5b50\u7b3c\u7a7a\u8154\u548c\u5b54\u5f84\u4e0e\u91d1\u5c5e\u524d\u9a71\u4f53\u5927\u5c0f\u5339\u914d\uff0c\u6bcf\u4e2a\u5206\u5b50\u7b3c\u90fd\u80fd\u4e14\u53ea\u80fd\u6355\u83b7\u4e00\u4e2aFe(acac)3<\/sub>\uff0c\u5f62\u6210Fe(acac)3<\/sub>@ZIF-8\u7684\u7ed3\u6784\u3002\u5728900\u2103 Ar\u6c14\u6c1b\u4e0b\u70ed\u89e3\uff0cZIF-8\u8f6c\u5316\u6210N\u63ba\u6742\u7684\u591a\u5b54\u78b3\u3002\u540c\u65f6\uff0cFe(acac)3<\/sub>\u5728\u9aa8\u67b6\u6709\u673a\u7269\u78b3\u5316\u7684\u8fc7\u7a0b\u4e2d\u88ab\u8fd8\u539f\uff0c\u5bfc\u81f4\u5b64\u7acb\u7684Fe\u5355\u539f\u5b50\u88ab\u56fa\u5b9a\u5728\u78b3\u6750\u6599\u4e2d\u7684\u6c30\u57fa\u4e0a\uff0c\u5f62\u6210Fe-ISAs\/CN\u3002\u901a\u8fc7TEM\uff0cSEM\u7684\u8868\u5f81\uff0c\u53ef\u4ee5\u53d1\u73b0Fe-ISAs\/CN\u5728\u70ed\u89e3\u8fc7\u7a0b\u4e2d\u4e00\u76f4\u4fdd\u6301\u7740\u6700\u521d\u7684\u5341\u4e8c\u9762\u4f53\u6784\u578b\uff0c\u4f46\u662f\u8868\u9762\u66f4\u52a0\u7c97\u7cd9\u4e86\u3002\u901a\u8fc7\u9ad8\u89d2\u73af\u5f62\u6697\u573a\u50cf-\u626b\u63cf\u900f\u5c04\u7535\u5b50\u663e\u5fae\u955c(HAADF-STEM)\uff0c\u53ef\u4ee5\u770b\u51faFe,C,N\u4e09\u79cd\u5143\u7d20\u5747\u5300\u5206\u5e03\u5728\u50ac\u5316\u5242\u4e0a\uff0c\u5e76\u4e14Fe\u786e\u5b9e\u662f\u4ee5\u5b64\u7acb\u7684\u5355\u539f\u5b50\u5f62\u6001\u5206\u5e03\u5728\u50ac\u5316\u5242\u4e0a\u3002<\/p>\n

\u56fe2 \u8bc1\u660e\u50ac\u5316\u5242\u4e2d\u7684<\/strong>Fe<\/strong>\u4e3a\u5355\u539f\u5b50\u5e76\u4e14\u5b64\u7acb\u5b58\u5728<\/strong><\/span><\/p>\n

\"\"<\/p>\n

a)\u2005XANES spectra (the green area highlights the near-edge absorption energy). b)\u2005Fourier transform (FT) of the Fe K-edge and wavelet transform (WT) of Fe-ISAs\/CN\u2005(c), Fe foil\u2005(d), and Fe2O3 samples\u2005(e). f)\u2005The corresponding EXAFS r\u2005space fitting curves of Fe-ISAs\/CN. g)\u2005Schematic model of Fe-ISAs\/CN, Fe\u2005(orange), N\u2005(blue), O\u2005(red), and C\u2005(gray).<\/p>\n

(a) XANES\uff08\u56fe\u4e2d\u7eff\u8272\u533a\u57df\u662f\u4e3a\u4e86\u7a81\u51fa\u8fd1\u8fb9\u5438\u6536\u80fd\uff09\uff0c(b) Fe K-\u8fb9\u754c\u7684\u5085\u91cc\u53f6\u53d8\u6362\u548c(c)Fe-ISAs\/CN, (d)Fe\u7b94\uff0c\u548c(e)Fe2<\/sub>O3<\/sub>\u7684\u5c0f\u6ce2\u53d8\u6362;(f)Fe-ISAs\/CN\u7684\u5bf9\u5e94\u7684EXAFS r\u7a7a\u95f4\u62df\u5408\u66f2\u7ebf\uff0c(g) Fe-ISAs\/CN\u7684\u6a21\u578b\uff0c\u7ea2\u8272\u4e3aO\uff0c\u6a59\u8272\u4e3aFe\uff0c\u84dd\u8272\u4e3aN\uff0c\u7070\u8272\u4e3aC\u3002<\/p>\n

\u8bf4\u660e\uff1a<\/strong><\/span>\u4e3a\u4e86\u786e\u8ba4Fe-ISAs\/CN\u539f\u5b50\u6c34\u5e73\u4e0a\u7684\u7ed3\u6784\uff0c\u7814\u7a76\u56e2\u961f\u8868\u5f81\u4e86\u50ac\u5316\u5242\u7684X\u5c04\u7ebf\u5438\u6536\u8fd1\u8fb9\u7ed3\u6784\uff08X-ray absorption near edge structure,XANES\uff09\u548c\u5ef6\u4f38X\u5c04\u7ebf\u5438\u6536\u7cbe\u7ec6\u7ed3\u6784\uff08extended X-ray absorption fine structure,EXAFS\uff09\u3002\u901a\u8fc7\u5c0f\u6ce2\u53d8\u6362\u548c\u5085\u91cc\u53f6\u53d8\u6362EXAFS\u5206\u6790\u53ef\u4ee5\u5f97\u77e5\uff0c\u50ac\u5316\u5242\u7684\u8c31\u4e2d\u53ea\u6709Fe-O\u548cFe-N\u4f5c\u7528\u7684\u5cf0\u800c\u6ca1\u6709Fe-Fe\u4f5c\u7528\u7684\u5cf0\uff0c\u8bf4\u660e\u50ac\u5316\u5242\u4e2d\u7684Fe\u786e\u5b9e\u4e3a\u5b64\u7acb\u7684\u5355\u539f\u5b50\u72b6\u6001\u3002\u5e76\u4e14\u901a\u8fc7\u4e0a\u8ff0\u5206\u6790\uff0c\u7814\u7a76\u56e2\u961f\u5f97\u5230\u4e86\u50ac\u5316\u5242\u7684\u7ed3\u6784\u6a21\u578b\uff1a\u6bcf\u56db\u4e2aN\u539f\u5b50\u4e0e\u4e00\u4e2aFe\u539f\u5b50\u914d\u4f4d\uff0c\u5f62\u6210\u4e00\u4e2aFe-N4<\/sub>\u7ed3\u6784\uff0c\u540c\u65f6\u6c27\u5206\u5b50\u4e5f\u5782\u76f4\u4e8e\u535f\u5549\u73af\u5438\u9644\u5728Fe\u539f\u5b50\u4e0a\u3002<\/p>\n

\u56fe<\/strong>3 Fe-ISAs\/CN<\/strong>\u50ac\u5316<\/strong>ORR<\/strong>\u53cd\u5e94\u7684\u7814\u7a76<\/strong><\/span><\/p>\n

\"\"<\/p>\n

(a) ORR\u6781\u5316\u66f2\u7ebf\uff0c(b) \u4e0d\u540c\u50ac\u5316\u5242\u57280.85 V\u4e0b\u7684Jk<\/sub>\u548cE1\/2<\/sub> \uff0c(c)\u4e0d\u540c\u8f6c\u901f\u4e0bORR\u7684\u6781\u5316\u66f2\u7ebf\uff08\u63d2\u56fe\u4e3aK-L\u62df\u5408\u66f2\u7ebf\u548c\u7535\u5b50\u8f6c\u79fb\u6570\uff09\u3002(d)H2<\/sub>O2<\/sub>\u4ea7\u7387\u66f2\u7ebf\u3002(e)\u5728\u52a0\u5165\u7532\u9187\u6216\u4e0d\u52a0\u5165\u7532\u9187\u7684\u6c27\u9971\u548c\u76840.1 M KOH\u4e2dFe-ISAs\/CN\u7684CV\u66f2\u7ebf\u3002(f)5000\u6b21\u5faa\u73af\u524d\u540e\u50ac\u5316\u5242\u7684ORR\u6781\u5316\u66f2\u7ebf\u3002<\/p>\n

\u56fe<\/strong>4 <\/strong>\u8bc1\u660e\u5b64\u7acb\u7684<\/strong>Fe<\/strong>\u5355\u539f\u5b50\u5bf9\u4e8e<\/strong>Fe-ISAs\/CN<\/strong>\u7684\u9ad8\u50ac\u5316\u6d3b\u6027\u7684\u4f5c\u7528<\/strong><\/span><\/p>\n

\"\"<\/p>\n

(a) Fe-ISAs\u548cNPs\/CN\u7684\u5728\u9178\u6d78\u524d\u540e\u7684ORR\u6781\u5316\u66f2\u7ebf\uff0c(b)\u57280.1 M HClO4<\/sub>\u4e2d\u52a0\u51650.01 M\u7684NaSCN\u7684ORR\u6781\u5316\u66f2\u7ebf\uff0c(c)\u57280.1 M KOH\u4e2dSCN–<\/sup>\u4e2d\u6bd2\u7684Fe-ISAs\/CN\u7684ORR\u6781\u5316\u66f2\u7ebf\uff0c(d) Fe-ISAs\/CN \u548cFe-NPs\/CN\u4e0aORR\u53cd\u5e94\u81ea\u7531\u80fd\u8def\u5f84\u56fe\u3002<\/p>\n

\u8bf4\u660e\uff1a<\/strong><\/span>\u7814\u7a76\u56e2\u961f\u901a\u8fc7\u65cb\u8f6c\u5706\u76d8\u7535\u6781(Rotating Disk Electrode,RDE)\u6d4b\u8bd5\u6765\u7814\u7a76Fe-ISAs\/CN\u7684\u50ac\u5316\u7279\u6027\u3002\u4ece\u7ebf\u6027\u626b\u63cf\u4f0f\u5b89(linear sweep voltammetry,LSV) \u66f2\u7ebf\u7684\u7ed3\u679c\u53ef\u4ee5\u770b\u51fa\uff0c\u5bf9\u6bd4\u4e0e\u5176\u4ed6\u8d35\u91d1\u5c5e\u548c\u975e\u8d35\u91d1\u5c5e\u50ac\u5316\u5242\uff0cFe-ISAs\/CN\u5177\u6709\u6700\u597d\u7684\u53cd\u5e94\u6d3b\u6027\u3002\u4e0e\u6b64\u540c\u65f6\uff0c\u901a\u8fc7\u4e0d\u540c\u8f6c\u901f\u7684LSV\u6d4b\u8bd5\u7814\u7a76\u56e2\u961f\u5f97\u5230\u4e86K-L(Koutecky-Levich)\u62df\u5408\u66f2\u7ebf\uff0c\u8fdb\u800c\u4ed6\u4eec\u5f97\u5230\u4e86\u50ac\u5316\u53cd\u5e94\u4e2d\u7535\u5b50\u8f6c\u79fb\u6570\u4e3a3.9\uff0c\u4e0ePt\/C\u50ac\u5316\u5242\u7684\u7406\u8bba\u503c4.0\u975e\u5e38\u63a5\u8fd1\u3002\u7814\u7a76\u56e2\u961f\u4e5f\u8fdb\u884c\u4e86\u65cb\u8f6c\u5706\u73af\u5706\u76d8\u7535\u6781(rotating ring-disk electrode,RRDE)\u6d4b\u8bd5\uff0c\u63ed\u793a\u4e86Fe-ISAs\/CN\u7684H2<\/sub>O2<\/sub>\u4ea7\u7387\u4f4e\u4e8e5%\u3002\u4e0a\u8ff0\u7ed3\u679c\u8bc1\u5b9e\u4e86Fe-ISAs\/CN\u50ac\u5316\u7684ORR\u53cd\u5e94\u662f\u4e00\u4e2a\u56db\u7535\u5b50\u7684\u8fc7\u7a0b\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u5177\u6709\u5f88\u9ad8\u7684ORR\u50ac\u5316\u53cd\u5e94\u6d3b\u6027\u3002\u5728\u8fd9\u4e4b\u540e\u7814\u7a76\u56e2\u961f\u4e5f\u6d4b\u8bd5\u4e86Fe-ISAs\/CN\u5bf9\u7532\u9187\u7684\u8010\u53d7\u6027\uff0c\u7ed3\u679c\u53d1\u73b0\u5728\u52a0\u5165\u7532\u9187\u4e4b\u540e\u7684\u50ac\u5316\u5242CV\u66f2\u7ebf\u4e0e\u672a\u52a0\u7532\u9187\u7684CV\u66f2\u7ebf\u65e0\u592a\u5927\u5dee\u522b\uff0c\u8fd9\u8bf4\u660e\u50ac\u5316\u5242\u5177\u6709\u5f88\u597d\u7684\u7532\u9187\u8010\u53d7\u6027\u3002\u4e0d\u4ec5\u5982\u6b64\uff0c\u57285000\u6b21\u7684\u5faa\u73af\u540e\uff0c\u50ac\u5316\u5242\u7684ORR\u6781\u5316\u66f2\u7ebf\u4f9d\u7136\u4e0d\u53d8\uff0c\u8bf4\u660e\u5176\u8fd8\u5177\u6709\u5f88\u597d\u7684\u8010\u7528\u6027\u3002\u57fa\u4e8e\u4ee5\u4e0a\u5b9e\u9a8c\u7ed3\u679c\uff0c\u7814\u7a76\u56e2\u961f\u63a8\u6d4bFe-ISAs\/CN\u5bf9ORR\u53cd\u5e94\u7684\u9ad8\u50ac\u5316\u80fd\u529b\u6765\u6e90\u4e8e\u4e0eN\u914d\u4f4d\u7684\u5b64\u7acb\u7684Fe\u539f\u5b50\u3002\u4e3a\u4e86\u9a8c\u8bc1\u8fd9\u4e2a\u731c\u60f3\uff0c\u4ed6\u4eec\u505a\u4e86\u4e24\u7ec4\u5bf9\u7167\u8bd5\u9a8c\u3002\u4ed6\u4eec\u4f9d\u7167Fe-ISAs\/CN\u5408\u6210\u8fc7\u7a0b\u5408\u6210\u51fa\u4e86Fe-ISAs\u548cNPs\/CN\u6df7\u5408\u50ac\u5316\u5242\uff0c\u5e76\u989d\u5916\u52a0\u5165\u4e86\u516d\u500d\u7684Fe\u524d\u9a71\u4f53\u3002\u53ef\u4ee5\u53d1\u73b0\uff0c\u9178\u6d78\u4e4b\u524d\uff0c\u5927\u90e8\u5206Fe\u539f\u5b50\u90fd\u5438\u9644\u4e86NPs\/CN\uff0c\u5931\u53bb\u4e86\u50ac\u5316\u80fd\u529b\uff1b\u5728\u9178\u6d78\u4e4b\u540e\uff0cNPs\/CN\u4eceFe\u4e0a\u8131\u9644\uff0c\u9732\u51faFe\u5355\u539f\u5b50\uff0c E1\/2<\/sub>\u589e\u52a0\u4e8642 mV\uff0c\u7531\u6b64\u53ef\u89c1\u5b64\u7acb\u7684Fe\u5355\u539f\u5b50\u5bf9\u50ac\u5316\u7684\u91cd\u8981\u6027\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u7814\u7a76\u56e2\u961f\u4e5f\u5728\u50ac\u5316\u5242\u4e2d\u52a0\u5165\u80fd\u4e0eFe\u5f3a\u914d\u4f4d\u7684SCN-1<\/sup>\uff0c\u800c\u540e\u901a\u8fc7\u63a7\u5236pH\u6765\u63a7\u5236\u5176\u5438\u8131\u9644\uff0c\u7136\u540e\u6d4b\u91cf\u8fd9\u4e2a\u8fc7\u7a0b\u4e2dE1\/2<\/sub>\u7684\u53d8\u5316\uff0c\u8fdb\u4e00\u6b65\u8bc1\u5b9e\u4e86\u5b64\u7acb\u7684Fe\u5355\u539f\u5b50\u5bf9\u50ac\u5316\u7684\u91cd\u8981\u6027\u3002\u4e3a\u4e86\u7406\u89e3\u8be5\u50ac\u5316\u53cd\u5e94\u7684\u672c\u8d28\uff0c\u7814\u7a76\u56e2\u961f\u4e5f\u4f7f\u7528\u4e86\u5bc6\u5ea6\u6cdb\u51fd\u7406\u8bba\u6765\u8ba1\u7b97\u56db\u7535\u5b50ORR\u53cd\u5e94\u7684\u81ea\u7531\u80fd\u3002\u7ed3\u679c\u53d1\u73b0\u8ba1\u7b97\u7ed3\u679c\u7b26\u5408\u5b9e\u9a8c\u6570\u636e,Fe-ISAs\/CN\u5bf9ORR\u53cd\u5e94\u7684\u6781\u9ad8\u50ac\u5316\u6d3b\u6027\u786e\u5b9e\u6765\u6e90\u4e8e\u5b64\u7acb\u7684Fe\u5355\u539f\u5b50\u3002<\/p>\n

\u3010\u7ed3\u8bed\u3011<\/strong><\/span><\/p>\n

\u8be5\u7814\u7a76\u56e2\u961f\u5229\u7528\u4e86\u5206\u5b50\u7b3c\u6355\u6349\u91d1\u5c5e\u524d\u9a71\u4f53\u800c\u540e\u70ed\u89e3\u7684\u7b56\u7565\uff0c\u5408\u6210\u51fa\u4e86\u4e00\u79cd\u7a33\u5b9a\u7684\u8d1f\u8f7d\u5b64\u7acbFe\u5355\u539f\u5b50\u7684N\u63ba\u6742\u7684\u591a\u5b54\u78b3\u6750\u6599\uff0c\u540c\u65f6\u4ed6\u4eec\u7528HAADF-STEM \u548c XAFS\u8868\u5f81\u4e86\u5b83\u7684\u7ed3\u6784\u3002\u7814\u7a76\u56e2\u961f\u53d1\u73b0\u8be5\u50ac\u5316\u5242\u540c\u65f6\u5177\u6709\u6781\u597d\u7684ORR\u53cd\u5e94\u50ac\u5316\u6d3b\u6027\uff0c\u826f\u597d\u7684\u7532\u9187\u8010\u53d7\u529b\u548c\u6781\u9ad8\u7684\u7a33\u5b9a\u6027\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u4ed6\u4eec\u7528\u5bf9\u7167\u8bd5\u9a8c\u548c\u5bc6\u5ea6\u6cdb\u51fd\u7406\u8bba\u8ba1\u7b97\u8bc1\u660e\u4e86\u5b64\u7acb\u7684Fe\u5355\u539f\u5b50\u5728\u50ac\u5316\u4e2d\u7684\u91cd\u8981\u4f5c\u7528\u3002\u8fd9\u4e00\u7ed9\u672a\u6765\u9ad8\u6548\u4e14\u7a33\u5b9a\u7684\u975e\u8d35\u91d1\u5c5e\u5355\u539f\u5b50\u50ac\u5316\u5242\u7684\u5e94\u7528\u63d0\u4f9b\u4e86\u4e00\u4e2a\u65b0\u7684\u673a\u9047\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1a<\/strong>Isolated Single Iron Atoms Anchored on N-Doped Porous Carbon as an Efficient Electrocatalyst for the Oxygen Reduction Reaction<\/a>(Angew. Chem. Int. Ed.,2017,DOI: 10.1002\/anie.201702473)<\/p>\n

\u672c\u6587\u7531\u6750\u6599\u4eba\u7f16\u8f91\u90e8\u65b0\u80fd\u6e90\u7ec4 Papyrus<\/strong> \u6574\u7406\u7f16\u8bd1\uff0c\u70b9\u6211\u52a0\u5165\u6750\u6599\u4eba\u7f16\u8f91\u90e8<\/a>\u3002\u53c2\u4e0e\u65b0\u80fd\u6e90\u8bdd\u9898\u8ba8\u8bba\u8bf7\u52a0\u5165\u201c\u6750\u6599\u4eba\u65b0\u80fd\u6e90\u6750\u6599\u4ea4\u6d41\u7fa4 422065952\u201d<\/p>\n

\u6750\u6599\u6d4b\u8bd5\uff0c\u6570\u636e\u5206\u6790\uff0c\u4e0a<\/strong>\u6d4b\u8bd5\u8c37<\/a>\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"

\u3010\u5f15\u8a00\u3011 \u7531\u4e8e\u7535\u5316\u5b66\u6c27\u8fd8\u539f\u53cd\u5e94(oxygen reduction reaction ,ORR)\u5728\u80fd\u6e90\u8f6c\u5316\u548c\u50a8\u5b58\u65b9\u9762\u7684\u91cd\u8981\u5e94\u7528\uff0c\u8fd1\u5e74\u6765\u4eba\u4eec\u5bf9\u5b83\u7684\u5173\u6ce8\u65e5\u76ca\u5bc6\u5207\u3002\u8d35\u91d1…<\/p>\n","protected":false},"author":272,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[215],"tags":[116,1602],"class_list":["post-77082","post","type-post","status-publish","format-standard","hentry","category-jiedu","tag-catalyst","tag-liyadong"],"_links":{"self":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/77082"}],"collection":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/users\/272"}],"replies":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=77082"}],"version-history":[{"count":4,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/77082\/revisions"}],"predecessor-version":[{"id":77392,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/77082\/revisions\/77392"}],"wp:attachment":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=77082"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=77082"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=77082"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}