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\n \u901a\u8fc7\u6539\u53d8\u91d1\u5c5e\u524d\u9a71\u4f53\u7684\u79cd\u7c7b\u53ef\u4ee5\u83b7\u5f97\u4e0d\u540c\u5355\u76f8\u7684FeCoNiXRu HEA\u7535\u50ac\u5316\u5242\uff0c\u4ee5FeCoNiMnRu\u4f5c\u4e3a\u6a21\u578b\u7535\u50ac\u5316\u5242\uff0c\u5982\u56fe2a\u6240\u793a\uff0c\u7ecf\u8fc7\u9ad8\u6e29\u78b3\u5316\u540eFeCoNiMnRu\u7eb3\u7c73\u9897\u7c92\uff08NPs\uff09\u5747\u5300\u951a\u5b9a\u5728\u78b3\u7eb3\u7c73\u7ea4\u7ef4\uff08CNFs\uff09\u8868\u9762\uff0c\u900f\u5c04\u7535\u955c\uff08TEM\uff09\u7167\u7247\u8bc1\u5b9eFeCoNiMnRu NPs\u7684\u5e73\u5747\u76f4\u5f84\u4e3a14.2\u00b19.1 nm\uff0c\u662f\u9762\u5fc3\u7acb\u65b9\u6676\u4f53\u7ed3\u6784\uff0c\u5e76\u4e14\u4e94\u79cd\u5143\u7d20\u5747\u5300\u5206\u5e03\u5728\u6574\u4e2aHEA\u4e0a\uff08\u56fe2b-e\uff09\uff0cX\u5c04\u7ebf\u884d\u5c04\uff08XRD\uff09\u5206\u6790\u7528\u6765\u8bc1\u5b9eFeCoNiMnRu\/CNFs\u7684\u6676\u4f53\u7ed3\u6784\uff0c\u5982\u56fe2f\uff0c1000 \u2103\u7145\u70e73 h\u540e\u7684\u6837\u54c1\u53ea\u51fa\u73b0\u4e09\u4e2a\u5c16\u9510\u7684\u884d\u5c04\u5cf0\uff0c\u5bf9\u5e94NiFe\u76f8\uff0c\u4f46\u7565\u5fae\u5411\u4f4e\u89d2\u5ea6\u504f\u79fb\uff0c\u8868\u660e\u5f62\u6210\u4e86\u5355\u76f8\u7684HEA\uff0c\u539f\u4f4dXRD\u56fe\u8c31\uff08\u56fe2g\uff0ch\uff09\u7814\u7a76\u4e8625-1000 \u2103\u8303\u56f4\u4e0b\u7684\u6837\u54c1\u7269\u76f8\uff0c\u53ea\u6709\u6e29\u5ea6\u9ad8\u4e8e600 \u2103\u624d\u4f1a\u51fa\u73b0\u660e\u663e\u7684\u884d\u5c04\u5cf0\uff0c\u5728800-1000 \u2103\u4e4b\u95f4Mn3<\/sub>Co7<\/sub>\u548cFeCoNiMnRu HEA\u4e24\u76f8\u5171\u5b58\uff0c\u5e76\u4e14HEA\u7684\u6bd4\u4f8b\u968f\u6e29\u5ea6\u5347\u9ad8\u800c\u589e\u5927\uff0c\u5f53\u57281000 \u2103\u5ef6\u957f\u52a0\u70ed\u65f6\u95f4\u81f33 h\uff0c\u5219\u6837\u54c1\u5b8c\u5168\u8f6c\u53d8\u4e3aHEA\u76f8\uff0c\u8868\u660eHEA NPs\u7684\u5f62\u6210\u662f\u4e00\u4e2a\u70ed\u52a8\u529b\u5b66\u9a71\u52a8\u7684\u76f8\u8f6c\u53d8\u8fc7\u7a0b\uff08\u56fe2i\uff09\u3002<\/p>\n
\n
\n FeCoNiMnRu\/CNFs\u7684\uff08a\uff09\u573a\u53d1\u5c04\u626b\u63cf\u7535\u955c\uff08b\uff09\u900f\u5c04\u7535\u955c\u548c\uff08c\uff0cd\uff09\u9ad8\u5206\u8fa8\u900f\u5c04\u7535\u955c\u56fe\u50cf\uff0c\uff08c\uff09\u4e2d\u7684\u63d2\u56fe\u662f\u76f8\u5e94\u7684FeCoNiMnRu HEA NP\u5feb\u901f\u5085\u91cc\u53f6\u53d8\u6362\u56fe\u8c31\uff1b
\n \uff08e\uff09CNFs\u8d1f\u8f7d\u7684FeCoNiMnRu HEA NP\u7684\u9ad8\u5206\u8fa8\u7403\u5dee\u6821\u6b63\u626b\u63cf\u900f\u5c04\u7535\u5b50\u663e\u5fae\u955c\u548c\u76f8\u5e94\u7684\u80fd\u8c31mapping\u56fe\u50cf\uff1b
\n \uff08f\uff09\u901a\u8fc7Rietveld\u7cbe\u4fee\u7684FeCoNiMnRu\/CNFs\u7684XRD\u8c31\u56fe\u3002
\n \uff08g\uff0ch\uff09FeCoNiMnRu\/CNFs\u5728\u52a0\u70ed\u6e29\u5ea6\u8303\u56f4\u4e3a25~1000 \u2103\u7684\u5b9e\u65f6\u539f\u4f4dXRD\u8c31\u56fe\u548c\u76f8\u5e94\u7684\u653e\u5927\u8c31\u56fe\uff1b
\n \uff08i\uff09FeCoNiMnRu NPs\u8d1f\u8f7d\u5728CNF\u7eb3\u7c73\u7ea4\u7ef4\u4e0a\u662f\u4e00\u4e2a\u70ed\u529b\u5b66\u9a71\u52a8\u7684\u76f8\u53d8\u8fc7\u7a0b\u3002<\/p>\n
\n XPS\u7ed3\u679c\uff08\u56fe3d-i\uff09\u8bc1\u5b9eFeCoNiMnRu\u4e2d\u7684\u4e94\u79cd\u5143\u7d20\u5747\u67090\u4ef7\u6001\u5b58\u5728\uff08Mn\u9664\u5916\uff09\uff0cO 1s\u8bc1\u5b9e\u4e0d\u5b58\u5728\u91d1\u5c5e\u6c27\u5316\u7269\u6676\u683cO2\u2212<\/sup>\u7684\u72b6\u6001\uff0c\u76f8\u6bd4\u4e8e\u5bf9\u6bd4\u6837FeCoNi\/CNFs\uff0cFeCoNiRu\/CNFs\u548cFeCoNiMn\/CNFs\uff0cFeCoNiMnRu\/CNFs\u4e2dRu\u7684\u7ed3\u5408\u80fd\u6b63\u79fb\uff0c\u8868\u660eRu\u5728HEA\u4e2d\u8868\u73b0\u4e3a\u7535\u5b50\u53d7\u4f53\uff0c\u8fd9\u5f52\u56e0\u4e8eRu\u7684\u9ad8\u7535\u8d1f\u6027\u4f7f\u5f97\u7535\u5b50\u4eceFe\uff0cCo\uff0cNi\u548cMn\u539f\u5b50\u4e2d\u8f6c\u79fb\u5230Ru\u3002
\n \u56fe3. XAS\u7ed3\u5408XPS\u6280\u672f\u8868\u5f81FeCoNiMnRu\/CNFs\u7535\u50ac\u5316\u5242\u7684\u8868\u9762\u5316\u5b66\u72b6\u6001\u3002
\n
\n FeCoNiMnRu\/CNFs\u548c\u5bf9\u6bd4\u6837\u7684\uff08a\uff09Co k\u8fb9XANES\u5149\u8c31\u548c\uff08b\uff09FT-EXAFS\u5149\u8c31\u3002
\n FeCoNiMnRu\/CNFs\u548c\u5bf9\u6bd4\u6837\u7684\uff08c\uff09Ru k\u8fb9XANES\u5149\u8c31\u548c\uff08d\uff09FT-EXAFS\u5149\u8c31\u3002
\n \uff08e-i\uff09\u6240\u5236\u5907\u7684FeCoNiMnRu\/CNFs\u7684\u9ad8\u5206\u8fa8\u7387XPS\u5149\u8c31\u3002<\/p>\n
\n \u4e3a\u4e86\u8bc4\u4ef7FeCoNiMnRu\/CNFs\u7684\u7535\u5316\u5b66\u6d3b\u6027\uff0c\u4f5c\u8005\u5c06\u5176\u7f6e\u4e8e\u6c29\u6c14\u9971\u548c\u76841.0 M KOH\u6eb6\u6db2\u4e2d\u8fdb\u884c\u6d4b\u8bd5\uff0c\u5982\u56fe4a\u6240\u793a\uff0c\u76f8\u6bd4\u4e8e\u5176\u5b83\u5bf9\u6bd4\u6837\uff0cFeCoNiMnRu\/CNFs\u5177\u6709\u6700\u5c0f\u7684\u8fc7\u7535\u4f4d\uff0871 mV@100 mA cm\u22122<\/sup>\uff09\u548c\u5854\u83f2\u5c14\u659c\u7387\uff0867.4 mV dec\u22121<\/sup>\uff0c\u652f\u6491\u4fe1\u606f\uff09\uff0c\u8868\u660e\u5176\u5177\u6709\u4f18\u5f02\u7684\u6790\u6c22\u53cd\u5e94\uff08HER\uff09\u6027\u80fd\uff0c\u5e76\u4e14\u8be5\u50ac\u5316\u5242\u4e5f\u5177\u6709\u6700\u4f18\u7684\u6790\u6c27\u53cd\u5e94\uff08OER\uff09\u6027\u80fd\uff0c\u83b7\u5f97100 mA cm\u22122<\/sup>\u6240\u9700\u7684\u8fc7\u7535\u4f4d\u4ec5\u4e3a308 mV\uff08\u56fe4d\uff09\uff0c\u4e3a\u6b64\uff0c\u91c7\u7528FeCoNiMnRu\/CNFs\u4f5c\u4e3aHER\u548cOER\u53cc\u529f\u80fd\u7535\u50ac\u5316\u5242\u6240\u9700\u7684\u6c34\u5206\u89e3\u7535\u538b\u4ec5\u4e3a1.65 V\uff08100 mA cm\u22122<\/sup>\uff0c\u56fe4f\uff09\uff0c\u5176\u6027\u80fd\u4f18\u4e8e\u5927\u90e8\u5206\u76ee\u524d\u62a5\u9053\u7684\u5148\u8fdb\u50ac\u5316\u5242\uff08\u56fe4e\uff09\u3002\u4e0d\u4ec5\u5982\u6b64\uff0cFeCoNiMnRu\/CNFs\u4e5f\u5177\u6709\u975e\u5e38\u7a81\u51fa\u7684\u7535\u50ac\u5316\u7a33\u5b9a\u6027\uff0c\u57281 A cm\u22122<\/sup>\uff08\u22121.16 V vs. RHE\uff09\u7684\u5927\u7535\u6d41\u4e0b\u53ef\u4ee5\u7a33\u5b9a\u8fd0\u884c600 h\u4e14\u6027\u80fd\u51e0\u4e4e\u6ca1\u6709\u8870\u51cf\uff08\u56fe4g\uff09\uff0c\u7a33\u5b9a\u6027\u6d4b\u8bd5\u540e\u7684XRD\u4ecd\u7ef4\u6301\u6700\u521d\u7684\u7ed3\u6784\uff0c\u4e14\u5143\u7d20\u4ecd\u5747\u5300\u5206\u5e03\u5728\u6574\u4e2aHEA NPs\u8868\u9762\u3002\u8fdb\u4e00\u6b65\u7684XAS\u7ed3\u679c\u4e5f\u8bc1\u5b9eFeCoNiMnRu\/CNFs\u5728\u7a33\u5b9a\u6027\u6d4b\u8bd5\u540e\u4ecd\u4fdd\u6301\u6700\u521d\u7684\u5316\u5b66\u72b6\u6001\uff0c\u6ca1\u6709\u6c27\u5316\u6001\u5b58\u5728\uff08\u56fe5a-f\uff09\u3002<\/p>\n
\n
\n \u4e0d\u540c\u7535\u50ac\u5316\u5242\u7684\uff08a\uff09HER\u6781\u5316\u66f2\u7ebf\u4ee5\u53cab\u5728100 mA cm\u22122<\/sup>\u4e0b\u5bf9\u5e94\u7684\u8fc7\u7535\u4f4d\u548c\u5854\u83f2\u5c14\u659c\u7387\uff1b
\n \uff08c\uff09\u7535\u5316\u5b66\u9762\u79ef\u4fee\u6b63\u7684HER\u6781\u5316\u66f2\u7ebf\u3002
\n \uff08d\uff09\u6240\u5236\u5907\u7684\u7535\u50ac\u5316\u5242\u4e0e\u5546\u4e1aRuO2<\/sub>\u4ee5\u53caIrO2<\/sub>\u57281.0 M KOH\u7535\u89e3\u8d28\u4e2d\u7684OER\u6781\u5316\u66f2\u7ebf\u3002\uff08e\uff09\u6bd4\u8f83\u4e0d\u540c\u50ac\u5316\u5242\u57281.0 M KOH\u4e2d\u5bf9\u5e9410 mA cm\u22122<\/sup>\u7684HER\u548cOER\u8fc7\u7535\u4f4d\uff1b
\n \uff08f\uff09\u6240\u5236\u5907\u7684\u7535\u50ac\u5316\u5242\u5728\u4e24\u7535\u6781\u4f53\u7cfb\u4e0b\u7684\u5168\u5206\u89e3\u6c34\u66f2\u7ebf\uff1b
\n \uff08g\uff09FeCoNiMnRu\/CNFs\u7535\u6781\u5728\u22121.16 V vs. RHE\u7535\u4f4d\u4e0b\u7a33\u5b9a\u8fd0\u884c600 h\uff0c\u63d2\u56fe\u4e3a\u7a33\u5b9a\u6027\u6d4b\u8bd5\u540e\u7684XRD\u56fe\u8c31\u548c\u80fd\u8c31mapping\u56fe\u50cf\u3002<\/p>\n
\n
\n FeCoNiMnRu\/CNFs\u548cCo\u7b94\u5728\u7a33\u5b9a\u6027\u6d4b\u8bd5\u524d\u540e\u7684\uff08a\uff09Co K-edge XANES\u548c\uff08b\uff09FT-EXAFS\u5149\u8c31\u4ee5\u53ca\uff08c\uff09\u76f8\u5e94\u7684FT-EXAFS\u62df\u5408\u66f2\u7ebf\uff1b
\n FeCoNiMnRu\/CNFs\u548cCo\u7b94\u7a33\u5b9a\u6027\u8bd5\u9a8c\u524d\u540e\u7684\uff08d\uff09Ru K-edge XANES\u5149\u8c31\u548c\uff08e\uff09FT-EXAFS\u5149\u8c31\u4ee5\u53ca\uff08f\uff09\u76f8\u5e94\u7684FT-EXAFS\u62df\u5408\u66f2\u7ebf\uff1b
\n \uff08g\uff09\u91d1\u5c5e\u7b94\u548c\u7a33\u5b9a\u6027\u6d4b\u8bd5\u524d\u540e\u7684\uff08h\uff0ci\uff09FeCoNiMnRu\/CNFs\u4e2dCo\u548cRu\u7684\u5c0f\u6ce2\u53d8\u6362EXAFS\u5149\u8c31\u3002<\/p>\n
\n \u4e3a\u4e86\u63ed\u793aHEA\u591a\u91d1\u5c5e\u4f5c\u4e3a\u6d3b\u6027\u4e2d\u5fc3\u7684\u89d2\u8272\uff0c\u4f5c\u8005\u91c7\u7528\u5bc6\u5ea6\u6cdb\u51fd\u7406\u8bba\uff08DFT\uff09\u8ba1\u7b97\u8fdb\u884c\u7814\u7a76\uff0cFeCoNiMnRu HEA\u50ac\u5316\u6c34\u5206\u89e3\u5206\u4e3a\u56db\u4e2a\u9636\u6bb5\uff08\u56fe6a\uff09\uff0c\u5176\u4e2dH*\u4e2d\u95f4\u4f53\u7684\u5438\u9644\u662f\u901f\u7387\u9650\u5236\u6b65\u9aa4\uff0c\u56fe6b\u7684\u81ea\u7531\u80fd\u66f2\u7ebf\u8868\u660e\u5728Co\u4f4d\u70b9\u4e0a\u53d1\u751f\u6b65\u9aa41\u52302\u7684\u53cd\u5e94\u6240\u9700\u7684\u80fd\u5792\u662f\u6700\u4f4e\u7684\uff080.34 eV\uff09\uff0c\u8868\u660eH2<\/sub>O\u5206\u89e3\u4ea7\u751fH*\u4e2d\u95f4\u4f53\u7684\u53cd\u5e94\u4f18\u5148\u5728Co\u4f4d\u70b9\u8fdb\u884c\uff0c\u8fdb\u4e00\u6b65\u7684H\u5438\u9644\u5409\u5e03\u65af\u81ea\u7531\u80fd\uff08\u0394GH*<\/sub>\uff09\u7ed3\u679c\u8868\u660eRu\u4f4d\u70b9\u6240\u9700\u7684\u0394GH*\u6700\u4f4e\uff08\u22120.07 eV\uff0c\u56fe6c\uff09\uff0c\u8868\u660eH*\u4e2d\u95f4\u4f53\u503e\u5411\u4e8e\u7a33\u5b9a\u5728Ru\u4f4d\u70b9\u4e0a\u3002
\n operando\u7535\u5316\u5b66Raman\u6d4b\u8bd5\u7ed3\u679c\uff08\u56fe6d-f\uff09\u4e5f\u8bc1\u5b9e\u968f\u7740\u65bd\u52a0\u7535\u4f4d\u4e0d\u65ad\u589e\u52a0\uff0cCo-O\uff0cFe-O\uff0cNi-O\u952e\u548cRu-H\u952e\u5bf9\u5e94\u7684Raman\u5cf0\u9010\u6e10\u589e\u5f3a\uff0c\u800c\u8fd9\u5206\u522b\u5bf9\u5e94H2<\/sub>O\u5206\u89e3\u5f62\u6210Co-OH*\uff0cFe-OH*\uff0cNi-OH*\u548cRu-H*\u4e2d\u95f4\u4f53\uff0c\u8868\u660eHEA\u4e0d\u540c\u7684\u6d3b\u6027\u4f4d\u70b9\u5206\u522b\u7a33\u5b9a\u591a\u4e2a\u4e2d\u95f4\u4f53\u3002<\/p>\n
\n
\n \uff08a\uff09FeCoNiMnRu HEA\u5728H2<\/sub>O\u89e3\u79bb\u8fc7\u7a0b\u56db\u4e2a\u9636\u6bb5\u7684\u50ac\u5316\u4f4d\u70b9\u4e0a\u7684\u539f\u5b50\u6784\u578b\uff1b
\n \uff08b\uff09FeCoNiMnRu HEA\u8868\u9762\u4e0a\u4e0d\u540c\u50ac\u5316\u4f4d\u70b9\u4e0a\u6c34\u89e3\u79bb\u7684\u53cd\u5e94\u80fd\u5792\uff1b
\n \uff08c\uff09FeCoNiMnRu HEA\u8868\u9762\u4e0d\u540c\u50ac\u5316\u4f4d\u70b9\u7684\u5409\u5e03\u65af\u81ea\u7531\u80fd(\u0394GH*<\/sub>)\u5206\u5e03\uff1b
\n \uff08d-f\uff09\u5728HER\u6d4b\u8bd5\u8fc7\u7a0b\u4e2d\u83b7\u53d6\u7684FeCoNiMnRu\/CNFs\u7684Operando\u7535\u5316\u5b66\u62c9\u66fc\u5149\u8c31\u3002<\/p>\n
\n
\n \uff08\uff09FeCoNiXRu\/CNFs\uff08X=Cr\uff0cMn\uff0cCu\uff09\u7684HER\u6781\u5316\u66f2\u7ebf\uff1b
\n \uff08b\uff09\u5728100 mA cm\u22122<\/sup>\u7684HER\u8fc7\u7535\u4f4d\uff0cTafel\u659c\u7387\u548c\u91d1\u5c5eX\uff08Cr\u3001Mn\u548cCu\uff09\u7684\u7535\u8d1f\u6027\u4e4b\u95f4\u7684\u76f8\u5173\u6027\uff1b
\n \uff08c\uff09Fe\uff0cCo\uff0cNi\uff0cMn\uff0cRu\u548cFeCoNiMnRu\u7684d\u8f68\u9053\u6295\u5f71\u6001\u5bc6\u5ea6\uff1b
\n \uff08d\uff09FeCoNiXRu\uff08X=Cr\uff0cMn\uff0cCu\uff09HEA\u7684\u6295\u5f71\u6001\u5bc6\u5ea6\u5bf9\u6bd4\uff1b
\n \uff08e\uff09FeCoNiMnRu\u3001FeCoNiCrRu\u548cFeCoNiCuRu HEA\u8868\u9762Co\u4f4d\u70b9\u7684\u6c34\u5206\u89e3\u53cd\u5e94\u80fd\u5792\uff1b
\n \uff08f\uff09\u4e0d\u540c\u91d1\u5c5e\u4f4d\u4e0aH2<\/sub>O\u89e3\u79bb\u7684\u80fd\u5792\u4e0e\u91d1\u5c5e\uff08Cr\u3001Mn\u3001Cu\uff09\u7535\u8d1f\u6027\u7684\u5173\u7cfb\u3002
\n \uff08g\uff09FeCoNiMnRu, FeCoNiCrRu\u548cFeCoNiCuRu HEA\u8868\u9762\u4e0aRu\u4f4d\u70b9\u7684\u5409\u5e03\u65af\u81ea\u7531\u80fd\uff08\u0394GH*<\/sub>)\u3002\uff08h\uff09\u4e0d\u540c\u91d1\u5c5e\u4f4d\u70b9\u0394GH*<\/sub>\u4e0e\u91d1\u5c5e\uff08Cr\u3001Mn\u3001Cu\uff09\u7535\u8d1f\u6027\u7684\u76f8\u5173\u6027\u3002<\/p>\n
\n \u603b\u4e4b\uff0c\u672c\u6587\u7ed3\u5408\u9759\u7535\u7eba\u4e1d\u548c\u9ad8\u6e29\u78b3\u5316\u5de5\u827a\u6210\u529f\u5236\u5907\u4e86\u4e00\u7cfb\u5217HEAs\uff0c\u539f\u6587XRD\u7ed3\u679c\u8bc1\u5b9e\u591a\u76f8\u524d\u9a71\u4f53\u8f6c\u53d8\u4e3a\u5355\u76f8\u7684HEA\u662f\u4e00\u4e2a\u70ed\u529b\u5b66\u9a71\u52a8\u7684\u8fc7\u7a0b\uff0c\u6240\u5236\u5907\u7684FeCoNiMnRu HEA NPs\u5728\u78b1\u6027\u6761\u4ef6\u4e0b\u5177\u6709\u4f18\u5f02\u7684\u6c34\u5206\u89e3\u6027\u80fd\uff0c\u5728\u22121A cm\u22122<\/sup>\u7535\u6d41\u5bc6\u5ea6\u4e0b\u7a33\u5b9a\u5de5\u4f5c600 h\u4ee5\u4e0a\uff0c\u539f\u4f4dRaman\u548cDFT\u8ba1\u7b97\u5171\u540c\u8bc1\u5b9e\u5728FeCoNiMnRu HEA\u4e2dCo\u4f4d\u70b9\u4fc3\u8fdbH2O\u7684\u89e3\u79bb\uff0c\u800cRu\u4f4d\u70b9\u7a33\u5b9aH*\u4e2d\u95f4\u4f53\uff0c\u8fdb\u4e00\u6b65\u5efa\u7acb\u91d1\u5c5e\u7535\u8d1f\u6027\u4e0e\u7535\u5316\u5b66HER\u6027\u80fd\u7684\u5173\u7cfb\uff0c\u4e3a\u672c\u5f81\u6d3b\u6027\u4f4d\u70b9\u4e0e\u4e2d\u95f4\u4f53\u7684\u5173\u7cfb\u63d0\u4f9b\u6df1\u5165\u89c1\u89e3\u3002<\/p>\n
\n Unraveling the electronegativity-dominated intermediate adsorption on high-entropy alloy electrocatalysts, Nat Commun 13, 2662 (2022), https:\/\/doi.org\/10.1038\/s41467-022-30379-4.<\/p>\n