{"id":238370,"date":"2022-06-14T06:33:42","date_gmt":"2022-06-13T22:33:42","guid":{"rendered":"\/\/m.iemloyee.com\/?p=238370"},"modified":"2022-06-13T17:33:53","modified_gmt":"2022-06-13T09:33:53","slug":"%e7%ba%b3%e7%b1%b3%e5%b0%ba%e5%ba%a6%e8%b6%85%e8%96%84%e9%ab%98%e7%86%b5%e5%90%88%e9%87%91%e7%9a%84%e6%9c%80%e6%96%b0%e8%bf%9b%e5%b1%95","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=238370","title":{"rendered":"\u7eb3\u7c73\u5c3a\u5ea6\u8d85\u8584\u9ad8\u71b5\u5408\u91d1\u7684\u6700\u65b0\u8fdb\u5c55"},"content":{"rendered":"

\u7eb3\u7c73\u5c3a\u5ea6\u8d85\u8584\u9ad8\u71b5\u5408\u91d1\u7684\u6700\u65b0\u8fdb\u5c55<\/strong><\/p>\n

\u4e00\u3001<\/strong> \u3010\u5bfc\u8bfb\u3011<\/strong><\/p>\n

\u9ad8\u71b5\u5408\u91d1\uff08<\/strong>HEA<\/strong>\uff09<\/strong>\u7531\u4e8e\u5176\u7ec4\u5206\u53ef\u8c03\u6027\u548c\u5728\u50ac\u5316\u65b9\u9762\u7684\u5e94\u7528\u800c\u5f15\u8d77\u4e86\u5173\u6ce8\u3002\u5927\u7684\u6bd4\u8868\u9762\u79ef\uff0c\u4e30\u5bcc\u7684\u6d3b\u6027\u4f4d\u70b9\u9644\u7740\u533a\u57df\u4ee5\u53ca\u9ad8\u5bc6\u5ea6\u662f\u8d85\u8584\u4e8c\u7ef4\u7ed3\u6784\u7684\u7279\u70b9\u3002\u7136\u800c\uff0c\u7531\u4e8e\u9ad8\u71b5\u5408\u91d1\u56fa\u6709\u7684\u70ed\u529b\u5b66\u4e0d\u7a33\u5b9a\u6027\uff0c\u5c06 HEA \u7cbe\u51c6\u5730\u5851\u9020\u6210\u8d85\u8584\u7684\u4f4e\u7ef4\u7eb3\u7c73\u7ed3\u6784\u5b9e\u73b0\u591a\u79cd\u5e94\u7528\u4ecd\u7136\u662f\u4e00\u4e2a\u5de8\u5927\u7684\u6311\u6218\u3002\u672c\u6587\u4f5c\u8005\u5229\u7528\u4e00\u79cd\u4f4e\u6e29\u5408\u6210\u65b9\u6cd5\u5408\u6210\u51fa\u4e86\u8d85\u8584n HEA \u4e9a\u7eb3\u7c73\u8584\u5e26\uff0c\u5e76\u7528\u5b9e\u9a8c\u8bc1\u660e\u4e86\u4ed6\u4eec\u5408\u6210\u7684 n HEA\u4e9a\u7eb3\u7c73\u8584\u5e26\u662f\u4e16\u754c\u4e0a\u6700\u8584\u7684\u91d1\u5c5e\u6750\u6599<\/strong>\u3002<\/p>\n

\u4e8c\u3001\u3010\u6210\u679c\u63a0\u5f71\u3011<\/strong><\/p>\n

\u8fd1\u65e5\uff0c\u9999\u6e2f\u7406\u5de5\u5927\u5b66\u9ec4\u6e24\u9f99\u6559\u6388\u8054\u5408\u5317\u4eac\u5927\u5b66\u90ed\u5c11\u519b\u6559\u6388\u4e3a\u901a\u8baf\u4f5c\u8005\u5728\u6743\u5a01\u671f\u520aJACS\u53d1\u8868\u4e86\u4e00\u7bc7\u540d\u4e3a\uff1aA General Synthetic Method for High-Entropy Alloy Subnanometer Ribbons\u7684\u8bba\u6587\uff0c\u4ecb\u7ecd\u4e86\u8d85\u8584\u9ad8\u71b5\u5408\u91d1\u7684\u5236\u5907\u65b9\u6cd5\uff0c\u5e76\u5bf9\u5176\u673a\u7406\u8fdb\u884c\u4e86\u8868\u5f81\u3002\u5b9e\u73b0\u4e86\u7ec4\u5206\u53ef\u63a7\u7684\u8d85\u8584\u591a\u5143\u9ad8\u71b5\u5408\u91d1\u7684\u5236\u5907\uff0c\u5728\u7535\u50ac\u5316\u6c27\u8fd8\u539f\u4ee5\u53ca\u4f5c\u4e3a\u9502-\u6c27\u7535\u6c60\u7684\u6b63\u6781\u65b9\u9762\u8868\u73b0\u51fa\u4e86\u4f18\u5f02\u7684\u6027\u80fd\u3002<\/p>\n

\"\"<\/p>\n

 <\/p>\n

\u4e09\u3001\u3010\u6838\u5fc3\u521b\u65b0\u70b9\u3011<\/strong><\/p>\n

(1)\u5c06\u591a\u8fbe\u516b\u79cd\u91d1\u5c5e\u5143\u7d20\u7ed3\u5408\u5230\u540c\u4e00\u4e2a\u5355\u76f8\u4e9a\u7eb3\u7c73\u5e26\u4e2d\uff0c\u5b9e\u73b0\u4e86\u4e16\u754c\u4e0a\u6700\u8584\u7684 HEA \u91d1\u5c5e\u6750\u6599\u3002<\/p>\n

(2) \u5408\u6210\u8fc7\u7a0b\u4e2d\u80fd\u591f\u7075\u6d3b\u63a7\u5236 HEA SNR \u4e2d\u7684\u7ec4\u5206\u548c\u6d53\u5ea6\uff0c\u4ece\u800c\u5b9e\u73b0 HEA SNR\u5728\u50ac\u5316\u71c3\u6599\u7535\u6c60\u7684\u6c27\u8fd8\u539f\u53cd\u5e94\u65b9\u9762\u548c\u5728 Li-O2<\/sub> \u7535\u6c60\u7684\u653e\u7535\u5bb9\u91cf\u3001\u5145\u7535\u8fc7\u7535\u4f4d\u548c\u8010\u4e45\u6027\u7b49\u65b9\u9762\u5177\u6709\u5353\u8d8a\u8868\u73b0\u3002<\/p>\n

\u56db\u3001\u3010\u6570\u636e\u6982\u89c8\u3011<\/strong><\/p>\n

\u56fe\u4e00\uff1a HEA-PtPdIrRuAg SNR \u7684\u5f62\u6001\u3001\u7ec4\u6210\u548c\u7ed3\u6784\u8868\u5f81\u3002(a) HEA-PtPdIrRuAg SNR \u7684\u4f4e\u500d\u7387 TEM \u56fe\u50cf\u548c (b) HAADFSTEM \u56fe\u50cf\uff1b(c)\u5178\u578b\u7684 \u4e94\u5143\u91d1\u5c5eHEA-PtPdIrRuAg SNR \u7684\u9ad8\u500d\u7387 TEM \u56fe\u50cf\uff1b(d) HEA-PtPdIrRuAg SNR \u7684 AFM \u56fe\u50cf\u548c (e) \u76f8\u5e94\u7684\u9ad8\u5ea6\u5256\u9762\uff1b(f) HEA-PtPdIrRuAg SNR \u7684 PXRD \u56fe\uff1b(g) HEA-PtPdIrRuAg SNR \u7684\u4e00\u6bb5\u7684 HAADF-STEM \u56fe\u50cf\u548c EDS \u5143\u7d20\u6620\u5c04\u56fe\u50cf\uff0cPt\uff08\u84dd\u8272\uff09\u3001Pd\uff08\u7ea2\u8272\uff09\u3001Ag\uff08\u6d0b\u7ea2\u8272\uff09\u3001Ir\uff08\u6a59\u8272\uff09\u548c Ru\uff08\u7eff\u8272\uff09\u4fe1\u53f7\uff1b(h) \u4e00\u4e2a HEA-PtPdIrRuAg SNR \u4e0a\u8868\u9762\u539f\u5b50\u6392\u5217\u7684\u9ad8\u5206\u8fa8\u7387 HAADF-STEM \u56fe\u50cf\u548c\u6765\u81ea (h) \u4e2d\u865a\u7ebf\u767d\u8272\u533a\u57df\u7684\u76f8\u5e94 FFT \u56fe\u6848 (h1-h4)\uff1b(i) \u53d6\u81ea (h) \u4e2d\u7684\u767d\u8272\u5b9e\u5fc3\u77e9\u5f62\u7684 HEA \u76f8\u7684\u96c6\u6210\u50cf\u7d20\u5f3a\u5ea6\u3002<\/p>\n

\"\"<\/p>\n

 <\/p>\n

\u56fe\u4e8c\uff1a\u5408\u6210 HEA SNR \u7684\u673a\u5236\u548c\u901a\u7528\u6027\u3002(a) HEA SNR \u5408\u6210\u4e2d\u6a21\u62df\u7684\u7535\u6d41\u4ea4\u6362\u3001\u5171\u8fd8\u539f\u548c\u53bb\u5408\u91d1\u5316\u9014\u5f84\u7684\u793a\u610f\u56fe\uff1b(b) \u516d\u5143\u91d1\u5c5eHEA-PtPdIrRuAuAg SNR \u7684 HAADF-STEM \u56fe\u50cf\uff0cEDS \u5143\u7d20\u6620\u5c04\u56fe\u50cf\u548c\u9ad8\u5206\u8fa8\u7387 HAADF-STEM \u56fe\u50cf\uff0c\u5bf9\u5e94\u7684 FFT \u56fe\u50cf\u53d6\u81ea (b) \u4e2d\u7684\u767d\u8272\u865a\u7ebf\u533a\u57df\uff0c\u653e\u5927\u7684HAADF-STEM\u539f\u5b50\u5206\u8fa8\u7387\u662f\u4ece\uff08b\uff09\u4e2d\u7684\u7ea2\u8272\u865a\u7ebf\u6b63\u65b9\u5f62\u62cd\u6444\u7684\u56fe\u50cf\uff1b(c) \u4e03\u5143\u91d1\u5c5e HEA-PtPdIrRuAuRhAg SNR \u7684 HAADF-STEM \u56fe\u50cf\uff0cEDS \u5143\u7d20\u6620\u5c04\u56fe\u50cf\u548c\u9ad8\u5206\u8fa8\u7387 HAADF-STEM \u56fe\u50cf\uff0c\u5176\u4e2d\u76f8\u5e94\u7684 FFT \u56fe\u50cf\u53d6\u81ea (c) \u4e2d\u7684\u767d\u8272\u865a\u7ebf\u6b63\u65b9\u5f62\uff1b(d) \u516b\u5143\u91d1\u5c5e\u7684 HEA-PtPdIrRuAuRhOsAg SNR \u7684 HAADF-STEM \u56fe\u50cf\uff0cEDS \u5143\u7d20\u6620\u5c04\u56fe\u50cf\u548c\u9ad8\u5206\u8fa8\u7387 HAADF-STEM \u56fe\u50cf\uff0c\u5176\u4e2d\u76f8\u5e94\u7684 FFT \u56fe\u50cf\u53d6\u81ea (d) \u4e2d\u7684\u767d\u8272\u865a\u7ebf\u6b63\u65b9\u5f62\uff1b(e) \u83b7\u5f97\u7684\u516d\u5143\u91d1\u5c5e\u3001\u4e03\u5143\u91d1\u5c5e\u548c\u516b\u5143\u91d1\u5c5eHEA SNR \u7684 PXRD \u56fe\u50cf\u3002<\/p>\n

 <\/p>\n

\"\"<\/p>\n

\u56fe\u4e09\uff1aHEA\u5f62\u6210\u7684MD\u6a21\u62df\u3002(a) PtPdIrRuAg\u3001(b) PtPdIrRuAuAg\u3001(c) PtPdIrRuAuRhAg \u548c (d) PtPdIrRuAuRhOsAg \u7684XRD \u6f14\u53d8\uff1b(e) PtPdIrRuAg\u3001 (f) PtPdIrRuAuAg\u3001 (g) PtPdIrRuAuRhAg \u548c (h) PtPdIrRuAuRhOsAg \u7684 MSD \u7ed3\u679c\uff1b(i) \u4e0d\u540c HEA \u4e2d\u7684\u952e\u957f\u5206\u5e03\uff1b(j) Pt\u3001Pd \u548c Ag \u539f\u5b50\u6bd4\u4e0e RDF \u7ed3\u679c\u83b7\u5f97\u7684\u7ed3\u6676\u6c34\u5e73\u4e4b\u95f4\u7684\u76f8\u5173\u6027\uff1b(k) Ir \u548c Ru \u539f\u5b50\u6bd4\u4e0e RDF \u7ed3\u679c\u83b7\u5f97\u7684\u7ed3\u6676\u6c34\u5e73\u4e4b\u95f4\u7684\u76f8\u5173\u6027\uff1b(l) \u6765\u81ea\u4e09\u4e2a\u4e0d\u540c\u65b9\u5411 (100)\u3001(010) \u548c (001) \u7684\u4e0d\u540c HEA \u7684\u76f8\u5bf9\u6d53\u5ea6\u3002<\/p>\n

\u00a0\"\"<\/p>\n

\u56fe\u56db\uff1aHEA-PtPdIrRuAg SNRs\/C \u548c\u5546\u4e1a Pt\/C \u50ac\u5316\u5242\u7528\u4e8e ORR \u7684\u7535\u50ac\u5316\u6027\u80fd\u3002(a) ORR \u6781\u5316\u66f2\u7ebf\u662f\u5728\u5ba4\u6e29\u4e0b\u5728 O2 \u9971\u548c\u7684 0.1 M KOH \u6c34\u6eb6\u6db2\u4e2d\u4ee5 20 mV s-1<\/sup> \u7684\u626b\u63cf\u901f\u7387\u548c 1600 rpm \u7684\u8f6c\u901f\u8bb0\u5f55\u7684\uff1b(b) \u4e0d\u540c\u50ac\u5316\u5242\u5728 0.9 V (vs RHE )\u7684\u8d28\u91cf\u6d3b\u6027\u67f1\u72b6\u56fe\uff08\u5206\u522b\u7528 Pt \u548c PGM \u5f52\u4e00\u5316\uff09\uff1b(c) \u5728 0.6 \u548c 1.1 V \u4e4b\u95f4 10 000 \u548c 30 000 \u6b21\u7535\u4f4d\u5faa\u73af\u524d\u540e\u50ac\u5316\u5242\u7684 ORR \u6781\u5316\u66f2\u7ebf\u548c (d) \u5f52\u4e00\u5316\u8d28\u91cf\u6d3b\u6027\u53d8\u5316\u3002<\/p>\n

\"\"<\/p>\n

\u56fe\u4e94: Li-O2<\/sub> \u7535\u6c60\u7684\u6027\u80fd\u3002(a) HEA-PtPdIrRuAuAg SNR \u5728 0.10 A g-1 <\/sup>\u4e0b\u7684\u5b8c\u5168\u653e\u7535-\u5145\u7535\u66f2\u7ebf\uff1b(b) HEA-PtPdIrRuAuAg SNR \u7684\u653e\u7535-\u5145\u7535\u66f2\u7ebf\uff0c\u5bb9\u91cf\u5728 0.10 A g-1<\/sup> \u65f6\u9650\u5236\u4e3a 1000 mA h g-1<\/sup>\uff1b(c) HEA-PtPdIrRuAuAg SNR \u7684\u901f\u7387\u6027\u80fd\uff1b(d) Pt \u6b63\u6781\u7684 Li-O2<\/sub> \u7535\u6c60\u5728 0.05 mV s-1<\/sup> \u65f6\u4ece 2.00 \u5230 4.00 V\u7684 CV \u66f2\u7ebf\uff1b(e) HEA-PtPdIrRuAuAg SNR \u5728 0.50 A g-1<\/sup> \u4e0b\u7684\u5faa\u73af\u7a33\u5b9a\u6027\uff0c\u5bb9\u91cf\u9650\u5236\u4e3a 1000 mAh g-1<\/sup>\u3002<\/p>\n

\"\"<\/p>\n

\u56fe\u516d\uff1aHEA\u7684\u7535\u5b50\u7ed3\u6784\u548c\u53cd\u5e94\u80fd\u53d8\u5316\u3002(a) PtPdIrRuAg\u3001 (b) PtPdIrRuAuAg\u3001 (c) PtPdIrRuAuRhAg \u548c (d) PtPdIrRuAuRhOsAg \u7684 EF<\/sub>\u9644\u8fd1\u7535\u5b50\u5206\u5e03\u76843D\u7b49\u503c\u7ebf\u56fe\uff1bPt\uff08\u6df1\u84dd\u8272\u7403\uff09\u3001Pd\uff08\u7d2b\u8272\u7403\uff09\u3001Ir\uff08\u6a59\u8272\u7403\uff09\u3001Ru\uff08\u9752\u8272\u7403\uff09\u3001Rh\uff08\u7c89\u7ea2\u8272\u7403\uff09\u3001Au\uff08\u9ec4\u8272\u7403\uff09\u3001Os\uff08\u7eff\u8272\u7403\uff09\u548cAg\uff08\u6d45\u84dd\u8272\u7403\uff09\uff1b\u84dd\u8272\u7b49\u503c\u9762\u8868\u793a\u6210\u952e\u8f68\u9053\uff0c\u7eff\u8272\u7b49\u503c\u9762\u8868\u793a\u8d39\u7c73\u80fd\u7ea7\u9644\u8fd1\u7684\u53cd\u952e\u8f68\u9053\uff1b(e) PtPdIrRuAg\u3001 (f) PtPdIrRuAuAg\u3001 (g) PtPdIrRuAuRhAg\u548c (h) PtPdIrRuAuRhOsAg \u7684 PDOS\uff1b(i) PtPdIrRuAg\u3001 (j) PtPdIrRuAuAg\u3001(k) PtPdIrRuAuRhAg \u548c (l) PtPdIrRuAuRhOsAg \u4e2d\u91d1\u5c5e\u5bf9\u7684 PDOS \u6f14\u53d8\uff1b(m) \u4e0d\u540c HEA \u4e2d\u539f\u5b50\u5bf9\u7684\u53ef\u80fd\u6027\u3002\u989c\u8272\u6761\u8868\u793a\u4e0d\u540c\u91d1\u5c5e\u4e4b\u95f4\u952e\u5408\u7684\u53ef\u80fd\u6027\uff0c\u8303\u56f4\u4e3a0\u52301\uff1b\uff08n\uff09\u4e94\u5143\u91d1\u5c5ePtPdIrRuAg SNR\u7684ORR\u6027\u80fd\uff1b(o) \u516d\u5143\u91d1\u5c5e PtPdIrRuAuAg SNR \u7684 Li-O2<\/sub> \u7535\u6c60\u6027\u80fd\u3002<\/p>\n

\u00a0\"\"<\/p>\n

\u4e94\u3001\u3010\u6210\u679c\u542f\u793a\u3011<\/strong><\/p>\n

\u7efc\u4e0a\u6240\u8ff0\uff0c\u4f5c\u8005\u62a5\u9053\u4e86\u4e00\u4e2a\u901a\u7528\u7684\u5408\u6210\u8def\u7ebf\u6765\u6784\u5efa2D HEA SNRs\uff0c\u5305\u62ec\u4f46\u4e0d\u9650\u4e8e\u4e94\u5143\u5236(PtPdIrRuAg)\u3001\u516d\u5143\u5236(PtPdIrRuAuAg)\u3001\u4e03\u5143\u5236(PtPdIrRuAuRhAg)\u548c\u516b\u5143\u5236 (PtPdIrRuAuRhOsAg) SNRs\u7684\u5408\u6210\u3002\u7efc\u5408\u673a\u7406\u7814\u7a76\u8868\u660e\uff0c\u4ee3\u8868\u6027\u7684\u4e94\u5143 HEAPtPdIrRuAg SNR \u662f\u4e00\u79cd\u9ad8\u6548\u7a33\u5b9a\u7684\u78b1\u6027\u7535\u89e3\u8d28\u4e2d ORR \u7684\u7535\u50ac\u5316\u5242\uff0c\u4e03\u5143 HEA-PtPdIrRuAuAg\/n\u5728 Li-o2<\/sub>\u4e2d\uff0cSNRs\u5728 Li-O2<\/sub> \u7535\u6c60\u4e2d\u663e\u793a\u51fa\u4f5c\u4e3a\u6b63\u6781\u7684\u826f\u597d\u6027\u80fd\u3002\u5bc6\u5ea6\u6cdb\u51fd\u7406\u8bba\u8ba1\u7b97\u8bc1\u5b9e\u9ad8\u52a8\u6001\u8fd8\u539f\u5143\u7d20(Pd\uff0cPt\uff0cAg\uff0cAu)\u662f\u5408\u6210\u9ad8\u71b5\u5408\u91d1SNR\u7684\u5173\u952e\uff0c\u4e3a\u4e86\u5b9e\u73b0HEA\u7684\u4f18\u8d8a\u7535\u6d3b\u6027\uff0c\u52a0\u5165\u60f0\u6027\u6c27\u5316\u5143\u7d20 (Ir\uff0cRu\uff0cRh\uff0cOs) \u53ef\u4ee5\u4fc3\u8fdb\u4f4d\u70b9\u8fc1\u79fb\u548c\u7535\u5b50\u8f6c\u79fb\u6548\u7387\uff0c\u4f46\u6709\u53ef\u80fd\u5bfc\u81f4\u672c\u5f81\u805a\u5408\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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