{"id":243693,"date":"2022-10-31T06:46:01","date_gmt":"2022-10-30T22:46:01","guid":{"rendered":"\/\/m.iemloyee.com\/?p=243693"},"modified":"2022-10-30T21:46:21","modified_gmt":"2022-10-30T13:46:21","slug":"%e4%b8%ad%e7%a7%91%e5%a4%a7%e5%8d%97%e4%ba%ac%e7%90%86%e5%b7%a5%e6%9c%80%e6%96%b0nature-catalysis%ef%bc%81","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=243693","title":{"rendered":"\u4e2d\u79d1\u5927&\u5357\u4eac\u7406\u5de5\u6700\u65b0Nature Catalysis\uff01"},"content":{"rendered":"

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

\u6c22\u6c27\u5316\u7269\u4ea4\u6362\u819c\u71c3\u6599\u7535\u6c60\uff08hydroxide exchange membrane fuel cells, HEMFCs\uff09\u53ef\u4ee5\u4f7f\u7528\u65e0\u94c2\u65cf\u91d1\u5c5e\uff08PGM\uff09\u50ac\u5316\u5242\uff0c\u540c\u65f6HEMFCs\u8fd8\u53ef\u4ee5\u964d\u4f4e\u819c\u3001\u53cc\u6781\u677f\u548c\u71c3\u6599\u7535\u6c60\u7cfb\u7edf\u7684\u5176\u4ed6\u90e8\u4ef6\u7684\u6210\u672c\u3002\u7136\u800c\uff0c\u5728HEMFCs\u8d1f\u6781\u4e0a\uff0c\u5f53\u7535\u89e3\u8d28\u4ece\u9178\u6027\u8f6c\u4e3a\u78b1\u6027\u65f6\uff0cPGM\u4e0a\u7684\u6c22\u6c27\u5316\u53cd\u5e94\uff08HOR\uff09\u7684\u56fa\u6709\u6d3b\u6027\u964d\u4f4e\u4e86\u7ea6\u4e24\u4e2a\u6570\u91cf\u7ea7\uff0c\u5e76\u4e14\u5f53\u524d\u65e0PGM\u50ac\u5316\u5242\u7684\u6d3b\u6027\u4f4e\u4e8ePGM\u57fa\u50ac\u5316\u5242\u3002\u56e0\u6b64\uff0c\u5728\u78b1\u6027\u7535\u89e3\u8d28\u4e2d\u5f00\u53d1\u9ad8\u6027\u80fd\u65e0PGM\u57faHOR\u50ac\u5316\u5242\u6709\u52a9\u4e8eHEMFCs\u7684\u53d1\u5c55\u3002\u7814\u7a76\u4eba\u5458\u63a2\u7d22\u4e86\u4ec5\u7531\u5bcc\u542b\u7a00\u571f\u5143\u7d20\u7ec4\u6210\u7684HOR\u50ac\u5316\u5242\uff0c\u4f46\u53ea\u62a5\u9053\u4e86\u5c11\u6570\u5728\u78b1\u6027\u7535\u89e3\u8d28\u4e2d\u5177\u6709\u6d3b\u6027\u7684\u50ac\u5316\u5242\u3002\u540c\u65f6\uff0c\u53d1\u73b0\u6240\u6709\u8fd9\u4e9b\u50ac\u5316\u5242\u90fd\u4f7f\u7528Ni\u4f5c\u4e3a\u5b9e\u73b0\u50ac\u5316\u6027\u80fd\u7684\u4e2d\u5fc3\u5143\u7d20\u3002\u4f46\u662f\uff0c\u8fd9\u4e9b\u50ac\u5316\u5242\u7684\u6d3b\u6027\u4ecd\u5927\u5927\u4f4e\u4e8ePGM\u57fa\u50ac\u5316\u5242\u3002<\/p>\n

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

\u8fd1\u65e5\uff0c\u4e2d\u56fd\u79d1\u5b66\u6280\u672f\u5927\u5b66\u9ad8\u654f\u9510\u6559\u6388\u548c\u5357\u4eac\u7406\u5de5\u5927\u5b66\u5170\u53f8\u6559\u6388\uff08\u5171\u540c\u901a\u8baf\u4f5c\u8005\uff09\u7b49\u4eba<\/strong>\u62a5\u9053\u4e86\u4e00\u79cd\u954d\uff08Ni\uff09-\u94bc\uff08Mo\uff09-\u94cc\uff08Nb\uff09\u4e09\u5143\u91d1\u5c5e\u73bb\u7483\uff08metallic glass, MG\uff09\uff0c\u5728\u78b1\u6027\u7535\u89e3\u8d28\u4e2d\u5176\u53ef\u4ee5\u4f5c\u4e3a\u9ad8\u6d3b\u6027\u548c\u7a33\u5b9a\u7684HOR\u7535\u50ac\u5316\u5242\u3002\u5b9e\u9a8c\u6d4b\u8bd5\u53d1\u73b0\uff0cNi52<\/sub>Mo13<\/sub>Nb35<\/sub> MG\u7684\u672c\u5f81\u4ea4\u6362\u7535\u6d41\u5bc6\u5ea6\u9ad8\u8fbe0.35 mA cm-2<\/sup>\uff0c\u4f18\u4e8e\u5546\u7528Pt\u57fa\u50ac\u5316\u5242\uff080.30 mA cm-2<\/sup>\uff09\uff0c\u5e76\u4e14\u57280.8 V vs. RHE\u6761\u4ef6\u4e0b\u8fd0\u884c18 h\u540e\uff0c\u5176\u964d\u89e3\u53ef\u4ee5\u5ffd\u7565\u4e0d\u8ba1\u3002\u5bf9\u4e8e\u65e0PGM\u57faHOR\u50ac\u5316\u5242\uff0c\u5176\u7a33\u5b9a\u7a97\u53e3\u53ef\u8fbe0.8 V\u3002\u540c\u65f6\uff0c\u8be5\u50ac\u5316\u5242\u8fd8\u8868\u73b0\u51fa\u4f18\u5f02\u7684CO\u8010\u53d7\u6027\uff082\u2009\u00d7\u2009104<\/sup>\u2009ppm CO in H2<\/sub>\uff09\u3002\u4f5c\u8005\u5c06Ni52<\/sub>Mo13<\/sub>Nb35<\/sub> MG\u7684\u663e\u8457HOR\u6027\u80fd\u5f52\u56e0\u4e8eNi\u3001Mo\u548cNb\u4e4b\u95f4\u7684\u534f\u540c\u76f8\u4e92\u4f5c\u7528\uff0c\u4ee5\u53ca\u975e\u6676\u6001\u5408\u91d1\u4e2d\u6709\u5229\u7684\u65e0\u5e8f\u539f\u5b50\u6392\u5217\u3002\u6b64\u5916\uff0c\u5177\u6709\u65e0PGM\u7684Ni52<\/sub>Mo13<\/sub>Nb35<\/sub>\u8d1f\u6781\u7684H2<\/sub>\/O2<\/sub>\u548cH2<\/sub>\/\u7a7a\u6c14HEMFCs\u5206\u522b\u83b7\u5f97\u4e86390\u548c253 mW cm-2<\/sup>\u7684\u529f\u7387\u5bc6\u5ea6\uff0c\u5e76\u5177\u6709\u826f\u597d\u7684\u957f\u671f\u8fd0\u884c\u7a33\u5b9a\u6027\u3002\u7814\u7a76\u6210\u679c\u4ee5\u9898\u4e3a\u201cNickel-molybdenum-niobium metallic glass for efficient hydrogen oxidation in hydroxide exchange membrane fuel cells<\/strong>\u201d\u53d1\u5e03\u5728\u56fd\u9645\u8457\u540d\u671f\u520aNature Catalysis<\/em>\u4e0a\u3002<\/p>\n

\"\"<\/p>\n

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

\u5728\u78b1\u6027\u7535\u89e3\u8d28\u4e2d\uff0cNi-Mo-Nb MGs\u53ef\u4f5c\u4e3a\u9ad8\u6d3b\u6027\u548c\u7a33\u5b9a\u7684HOR\u7535\u50ac\u5316\u5242\u3002\u5177\u6709\u65e0PGM Ni52<\/sub>Mo13<\/sub>Nb35<\/sub>\u8d1f\u6781\u7684H2<\/sub>\/O2<\/sub>\u548cH2<\/sub>\/\u7a7a\u6c14HEMFCs\u7684\u529f\u7387\u5bc6\u5ea6\u5206\u522b\u9ad8\u8fbe390\u548c253 mW cm-2<\/sup>\uff0c\u5e76\u5177\u6709\u826f\u597d\u7684\u957f\u671f\u8fd0\u884c\u7a33\u5b9a\u6027\u3002<\/p>\n

\"\"<\/p>\n

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

\u56fe\u4e00\u3001Ni-Mo-Nb MGs\u7684\u5408\u6210\u4e0e\u8868\u5f81<\/strong>\u00a92022 Springer Nature Limited
\n \"\"\uff08a\uff09\u5408\u6210Ni-Mo-Nb MGs\u7684\u5b9e\u9a8c\u88c5\u7f6e\u793a\u610f\u56fe\uff1b<\/p>\n

\uff08b\uff09Ni52<\/sub>Mo13<\/sub>Nb35<\/sub> MG\u7684\u5149\u5b66\u663e\u5fae\u955c\u56fe\u50cf\uff1b<\/p>\n

\uff08c\uff09Ni52<\/sub>Mo13<\/sub>Nb35<\/sub> MG\u7684EDX\u5143\u7d20\u6620\u5c04\u56fe\u50cf\uff1b<\/p>\n

\uff08d\uff09Ni52<\/sub>Mo13<\/sub>Nb35<\/sub> MG\u7684HRTEM\u56fe\u50cf\uff1b<\/p>\n

\uff08e\uff09Ni-Mo-Nb\u5408\u91d1\u5728\u5347\u6e29\u901f\u7387\u4e3a10 K min-1<\/sup>\u65f6\u7684DSC\u793a\u8e2a\uff1b<\/p>\n

\uff08f-h\uff09\u4e0d\u540cNi-Mo-Nb\u5408\u91d1\u7684XRD\u8c31\u3001\u603b\u7ed3\u6784\u56e0\u5b50\u548c\u529f\u51fd\u6570\u3002<\/p>\n

\u56fe\u4e8c\u3001HOR\u4e2d\u50ac\u5316\u5242\u7684\u6027\u80fd<\/strong>\u00a92022 Springer Nature Limited
\n \"\"\uff08a\uff09Ni52<\/sub>Mo13<\/sub>Nb35<\/sub> MG\u5728H2<\/sub>\u548cAr\u9971\u548c0.1\u2009M KOH\u6eb6\u6db2\u4e2d\u7684HOR\u6781\u5316\u66f2\u7ebf\uff1b<\/p>\n

\uff08b\uff09\u4e0d\u540cNi-Mo-Nb MGs\u548c\u5546\u7528Pt\u7b94\u7684HOR\u6781\u5316\u66f2\u7ebf\uff1b<\/p>\n

\uff08c\uff09\u6240\u7814\u7a76\u50ac\u5316\u5242\u7684\u5fae\u6781\u5316\u533a\u57df\uff1b<\/p>\n

\uff08d\uff09\u6709\u65e02\u00d7104<\/sup>\u2009ppm CO\u4e0b\uff0cNi52<\/sub>Mo13<\/sub>Nb35<\/sub> MG\u548cPt\u7b94\u5728H2<\/sub>\u9971\u548c0.1\u2009M KOH\u4e2d\u7684HOR\u6781\u5316\u66f2\u7ebf\uff1b<\/p>\n

\uff08e\uff09\u6bd4\u8f83\u5404\u79cd\u4e0d\u542bPGM\u7684HOR\u50ac\u5316\u5242\u548cPt\u76d8\u7684j<\/em>0, ECSA<\/sub>\u548c\u8d1f\u6781\u7a33\u5b9a\u6027\u7535\u4f4d\u3002<\/p>\n

\u56fe\u4e09\u3001Ni-Mo-Nb MGs\u7684\u7ed3\u6784\u5206\u6790<\/strong>\u00a92022 Springer Nature Limited
\n \"\"\uff08a\uff09\u5f84\u5411\u5206\u5e03\u51fd\u6570T(r)\u66f2\u7ebf\u7684\u7b2c\u4e00\u58f3\u5c42\u5cf0\u548c\u5bf9\u5e94\u4e8eNi-Ni\u3001Ni-Mo\/Nb\u548cMo\/Nb-Mo\/Nb MGs\u7684\u89e3\u6790\u504f\u5bfc\u6570\u7684\u9ad8\u65af\u62df\u5408\uff1b<\/p>\n

\uff08b\uff09PDF g(r)\u66f2\u7ebf\u7684\u7b2c\u4e8c\u5c42\u5cf0\u548c\u5bf9\u5e94\u4e8eNi-Mo-Nb MGs\u76841-\u539f\u5b50\u52304-\u539f\u5b50\u5171\u4eab\u7684\u8fde\u63a5\u6a21\u5f0f\u7684\u89e3\u6790\u504f\u503c\u7684\u9ad8\u65af\u62df\u5408\uff1b<\/p>\n

\uff08c\uff09\u591a\u9762\u4f53\u7684\u56db\u4e2a\u4e0d\u540c\u8fde\u63a5\u7684\u65b9\u6848\uff0c\u5176\u4e2d1\u4e2a\u52304\u4e2a\u5171\u4eab\u539f\u5b50\uff0c\u5206\u522b\u8868\u793a\u4e3a1-\u539f\u5b50\u30012-\u539f\u5b50\u30013-\u539f\u5b50\u548c4-\u539f\u5b50\u7c07\u8fde\u63a5\uff1b<\/p>\n

\uff08d\uff09Ni52<\/sub>Mo13<\/sub>Nb35<\/sub> MG\u76843D\u7ed3\u6784\u8868\u660e\uff0c1-\u539f\u5b50\u8fde\u63a5\u6a21\u5f0f\u6709\u5229\uff1b<\/p>\n

\uff08e\uff09\u6bd4\u8f83Ni52<\/sub>Mo13<\/sub>Nb35<\/sub> MG\u7684\u5b9e\u9a8c\u548c\u6a21\u62dfPDF\u6570\u636e\uff1b<\/p>\n

\uff08f\uff09\u57fa\u4e8eAIMD\u6a21\u62df\u8ba1\u7b97\u7684PDF\u7684Ni52<\/sub>Mo13<\/sub>Nb35<\/sub> MG\u7684\u7ed3\u6784\u6a21\u578b\uff1b<\/p>\n

\uff08g\uff09\u6240\u7814\u7a76\u7684\u5404\u79cd\u50ac\u5316\u5242\u7684\u8ba1\u7b97HBE\u548cH2<\/sub>OBE\u3002<\/p>\n

\u56fe\u56db\u3001\u7a33\u5b9a\u6027\u8bc4\u4f30<\/strong>\u00a92022 Springer Nature Limited
\n \"\"\uff08a\uff09Ni52<\/sub>Mo13<\/sub>Nb35<\/sub> MG\u5728H2<\/sub>\u548cAr\u9971\u548c0.1 M KOH\u30010.8 V\u4e0e\u5ba4\u6e29\uff08RT\uff09\u4e0b\u7684\u65f6\u95f4-\u5b89\u57f9\uff08j<\/em>-t\uff09\u54cd\u5e94\u66f2\u7ebf\uff1b<\/p>\n

\uff08b\uff09ICP-AES\u5206\u6790Ni52<\/sub>Mo13<\/sub>Nb35<\/sub> MG\u548cNi52<\/sub>Mo13<\/sub>Nb35<\/sub>\u7ed3\u6676\u5728\u4e0d\u540c\u64cd\u4f5c\u65f6\u95f4\u540eNi\u3001Mo\u548cNb\u7684\u6d78\u51fa\u91cf\uff1b<\/p>\n

\uff08c\uff09\u5904\u740612 h\u540e\uff0cNi52<\/sub>Mo13<\/sub>Nb35<\/sub> MG\u7b2c\u4e8c\u5c42\u5cf0\u7684\u9ad8\u65af\u62df\u5408\uff1b<\/p>\n

\uff08d\uff09Ni52<\/sub>Mo13<\/sub>Nb35<\/sub> MG\u548c\u7ed3\u6676Ni52<\/sub>Mo13<\/sub>Nb35<\/sub>\u5728\u7a33\u5b9a\u6027\u8bd5\u9a8c\u524d\u540e\u7684Ni 2p XPS\u5149\u8c31\uff1b<\/p>\n

\uff08e\uff09\u7528\u4e8eoperando Raman\u6d4b\u91cf\u7684\u7535\u5316\u5b66\u7535\u6c60\u7684\u5668\u4ef6\uff1b<\/p>\n

\uff08f-g\uff09Ni52<\/sub>Mo13<\/sub>Nb35<\/sub>\u6676\u4f53\u548cNi52<\/sub>Mo13<\/sub>Nb35<\/sub> MG\u5728\u4e0d\u540c\u5916\u52a0\u7535\u4f4d\u4e0b\u8bb0\u5f55\u7684Operando Raman\u5149\u8c31\u3002<\/p>\n

\u56fe\u4e94\u3001Ni52<\/sub>Mo13<\/sub>Nb35<\/sub> MG\u7684\u71c3\u6599\u7535\u6c60\u6027\u80fd<\/strong>\u00a92022 Springer Nature Limited
\n \"\"\uff08a\uff09Ni52<\/sub>Mo13<\/sub>Nb35<\/sub> MG\u4e3a\u8d1f\u6781\u50ac\u5316\u5242\u7684H2<\/sub>\/O2<\/sub>\u548cH2<\/sub>\/\u7a7a\u6c14\u71c3\u6599\u7535\u6c60\u6781\u5316\u56fe\uff1b<\/p>\n

\uff08b\uff09\u4ee5Ni52<\/sub>Mo13<\/sub>Nb35<\/sub> MG\u548c\u5546\u7528Ni\u7c89\u4e3a\u8d1f\u6781\u50ac\u5316\u5242\u7684H2<\/sub>\/O2<\/sub>\u71c3\u6599\u7535\u6c60\u6781\u5316\u56fe\uff1b<\/p>\n

\uff08c-d\uff09\u4f7f\u7528Ni52<\/sub>Mo13<\/sub>Nb35<\/sub> MG\u4f5c\u4e3a\u8d1f\u6781\u50ac\u5316\u5242\u7684H2<\/sub>\/O2<\/sub>\u71c3\u6599\u7535\u6c60\u5728200 mA cm-2<\/sup>\u548cH2\/\u7a7a\u6c14\u71c3\u6599\u7535\u6c60\u5728100 mA cm-2<\/sup>\u7684\u957f\u671f\u7a33\u5b9a\u6027\u6d4b\u8bd5\u3002<\/p>\n

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

\u603b\u4e4b\uff0cNi52<\/sub>Mo13<\/sub>Nb35<\/sub> MG\u57280.1 M KOH\u4e2d\u8868\u73b0\u51fa\u7c7bPt\u7684HOR\u53cd\u5e94\u6027\uff0c\u5728\u8d1f\u6781\u7535\u4f4d\u9ad8\u8fbe0.8 V\u65f6\u4ecd\u5177\u6709\u663e\u8457\u7684\u7a33\u5b9a\u6027\u3002\u540c\u65f6\uff0c\u8fd8\u8868\u73b0\u51fa\u4f18\u5f02\u7684\u6297CO\u4e2d\u6bd2\u80fd\u529b\u3002\u8be5\u50ac\u5316\u5242\u5728\u78b1\u6027HOR\u4e2d\u7684\u9ad8\u6d3b\u6027\u53ef\u5f52\u56e0\u4e8eNi\u3001Mo\u548cNb\u4e4b\u95f4\u663e\u8457\u7684\u534f\u540c\u6548\u5e94\uff0c\u4ee5\u53ca\u5728\u591a\u4e2a\u957f\u5ea6\u5c3a\u5ea6\u4e0a\u7684\u6709\u5229\u539f\u5b50\u6784\u578b\u3002\u8be5\u7814\u7a76\u547c\u5401\u8fdb\u4e00\u6b65\u7814\u7a76MGs\u4f5c\u4e3a\u4f4e\u6210\u672c\u3001\u7a33\u5b9a\u548c\u9ad8\u6548\u7684HEMFC\u8d1f\u6781\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1aNickel-molybdenum-niobium metallic glass for efficient hydrogen oxidation in hydroxide exchange membrane fuel cells<\/a><\/strong>. Nature Catalysis<\/em>, 2022<\/strong>, DOI: 10.1038\/s41929-022-00862-8.<\/p>\n

\u672c\u6587\u7531CQR\u7f16\u8bd1\u3002<\/p>\n

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