{"id":236507,"date":"2022-05-04T06:35:37","date_gmt":"2022-05-03T22:35:37","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=236507"},"modified":"2022-05-03T18:40:26","modified_gmt":"2022-05-03T10:40:26","slug":"%e9%a9%ac%e4%b8%81%e5%91%a8%e6%ad%a6%e5%88%98%e6%b4%aa%e9%98%b3%e7%8e%8b%e9%98%b3%e5%88%9a-nature-catalysis%ef%bc%9a%e5%ae%8c%e5%85%a8%e6%9a%b4%e9%9c%b2pd%e7%b0%87%e5%82%ac%e5%8c%96%e5%89%82","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=236507","title":{"rendered":"\u9a6c\u4e01&\u5468\u6b66&\u5218\u6d2a\u9633&\u738b\u9633\u521a Nature Catalysis\uff1a\u5b8c\u5168\u66b4\u9732Pd\u7c07\u50ac\u5316\u5242\u52a9\u529b\u6c2e\u6742\u73af\u5236\u6c22"},"content":{"rendered":"

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

\u5728\u6e29\u548c\u7684\u6e29\u5ea6\u4e0b\uff0c\u6db2\u6001\u6709\u673a\u6c22\u8f7d\u4f53\u6613\u50ac\u5316\u8131\u6c22\u4ee5\u91ca\u653e\u9ad8\u7eaf\u5ea6\u6c22\u6c14\uff0c\u5bf9\u4e8e\u673a\u8f7d\u8d28\u5b50\u4ea4\u6362\u819c\u71c3\u6599\u7535\u6c60\uff08proton-exchange membrane fuel cell\uff09<\/strong><\/span>\u5e94\u7528\u5177\u6709\u91cd\u8981\u4ef7\u503c\u3002\u53ef\u9006\u7684N-\u4e59\u57fa\u5494\u5511\/\u5341\u4e8c\u6c22-N-\u4e59\u57fa\u5494\u5511\uff08NEC\/DNEC\uff09\u50a8\u6c22\u7cfb\u7edf\u5df2\u5728\u4e2d\u56fd\u7684\u4e58\u7528\u8f66\u4e2d\u8fdb\u884c\u4e86\u5546\u4e1a\u5316\u5c55\u793a\uff0c\u5176\u8131\u6c22\u6e29\u5ea6\u4e3a443 K\uff0c\u5e76\u5177\u6709\u5176\u4ed6\u4f18\u52bf\u3002\u5bf9\u6bd4\u5176\u4ed6VIII\u65cf\u91d1\u5c5e\uff0c\u8d1f\u8f7d\u578b\u94af\uff08Pd\uff09\u50ac\u5316\u5242\u5728DNEC\u7684\u8131\u6c22\u4e2d\u5177\u6709\u4f18\u5f02\u7684\u672c\u5f81\u53cd\u5e94\u6d3b\u6027\u3002\u7814\u7a76\u8868\u660e\uff0c\u8d1f\u8f7d\u578bPd\u7eb3\u7c73\u9897\u7c92\uff08Pd NPs\uff09\u57282-20 nm\u8303\u56f4\u5185\u7684\u5468\u8f6c\u9891\u7387\uff08TOFs\uff09\u5bf9Pd\u9897\u7c92\u5c3a\u5bf8\u5f88\u654f\u611f\uff0c\u56e0\u4e3a\u4e0d\u540c\u8868\u9762\u6676\u9762\u7684Pd\u539f\u5b50\u6fc0\u6d3bDNEC\u7684\u5dee\u5f02\u5de8\u5927\u3002\u7136\u800c\uff0c\u8fd9\u4e9b\u7814\u7a76\u53d7\u5230\u53ef\u7528\u7ed3\u6784\u5206\u6790\u5de5\u5177\u7684\u9650\u5236\uff0c\u65e0\u6cd5\u7814\u7a76\u4e9a\u7eb3\u7c73\u8303\u56f4\u5185\u91d1\u5c5e\u7269\u79cd\u7684\u7ed3\u6784\u654f\u611f\u6027\u3002\u76ee\u524d\uff0c\u7f13\u6162\u7684\u8131\u6c22\u8fc7\u7a0b\u548c\u50ac\u5316\u5242\u4e2d\u8d35\u91d1\u5c5e\u7684\u9ad8\u8d1f\u8f7d\u4ecd\u7136\u662fNEC\/DNEC\u4f53\u7cfb\u5927\u89c4\u6a21\u5546\u4e1a\u5e94\u7528\u7684\u4e3b\u8981\u969c\u788d\uff0c\u9700\u8981\u66f4\u597d\u5730\u4e86\u89e3\u6700\u4f73\u50ac\u5316\u6d3b\u6027\u7ed3\u6784\uff0c\u5e76\u8fdb\u4e00\u6b65\u5f00\u53d1\u9ad8\u6548\u4f4e\u6210\u672c\u50ac\u5316\u5242\u3002<\/p>\n

\u5355\u539f\u5b50\u50ac\u5316\u5242\uff08SACs\uff09\u7406\u8bba\u4e0a\u53ef\u4ee5\u5b9e\u73b0100%\u7684\u539f\u5b50\u5206\u6563\u548c\u53ef\u63a7\u7684\u914d\u4f4d\u7ed3\u6784\uff0c\u4f46\u5b83\u4eec\u4e0d\u662f\u5bf9\u6240\u6709\u50ac\u5316\u53cd\u5e94\u90fd\u6709\u6548\u3002\u7406\u8bba\u7814\u7a76\u8868\u660e\uff0cDNEC\u5728Pd\u4e0a\u7684\u5438\u9644\u9700\u8981\u591a\u4e2a\u91d1\u5c5e\u4f4d\u70b9\uff0c\u8868\u660eDNEC\u8131\u6c22\u9700\u8981\u5177\u6709\u91d1\u5c5e\u539f\u5b50\u7cfb\u7efc\u7684\u50ac\u5316\u4f4d\u70b9\u3002\u6b64\u5916\uff0c\u7531\u4e8eDNEC\u8131\u6c22\u662f\u5178\u578b\u7684\u591a\u6b65\u53cd\u5e94\uff0c\u4e0d\u540c\u7684\u53cd\u5e94\u9636\u6bb5\u5bf9\u91d1\u5c5e\u7269\u79cd\u7684\u4f4d\u70b9\u8981\u6c42\u53ef\u80fd\u4e0d\u540c\u3002\u56e0\u6b64\uff0c\u8981\u5728\u8d35\u91d1\u5c5e\u7684\u66f4\u9ad8\u539f\u5b50\u5229\u7528\u7387\u548c\u6709\u5229\u5438\u9644\u53cd\u5e94\u7684\u4f4d\u70b9\u8981\u6c42\u4e4b\u95f4\u53d6\u5f97\u5e73\u8861\uff0c\u9009\u62e9\u6700\u4f73\u7684Pd\u7ed3\u6784\uff0c\u4ece\u5355\u539f\u5b50\u6c34\u5e73\u5230\u7eb3\u7c73\u5c3a\u5ea6\uff0c\u5bf9\u4e8eDNEC\u7684\u4e0d\u540c\u8131\u6c22\u9636\u6bb5\u5177\u6709\u91cd\u8981\u610f\u4e49
\n \"\"
\n \u3010\u6210\u679c\u63a0\u5f71\u3011<\/strong><\/p>\n

\u8fd1\u65e5\uff0c\u5317\u4eac\u5927\u5b66\u9a6c\u4e01\u6559\u6388\u3001\u4e2d\u56fd\u79d1\u5b66\u9662\u5927\u5b66\u5468\u6b66\u7814\u7a76\u5458\u3001\u4e2d\u79d1\u9662\u6c88\u9633\u91d1\u5c5e\u6240\u5218\u6d2a\u9633\u7814\u7a76\u5458\u548c\u5357\u65b9\u79d1\u6280\u5927\u5b66\u738b\u9633\u521a\u526f\u6559\u6388\uff08\u5171\u540c\u901a\u8baf\u4f5c\u8005\uff09\u7b49\u4eba<\/strong>\u62a5\u9053\u4e86\u901a\u8fc7\u6539\u53d8Pd\u7684\u91cd\u91cf\u8d1f\u8f7d\u6216\u6e7f\u6cd5\u5408\u6210\u6cd5\uff0c\u5408\u6210\u4e86\u516d\u79cd\u4e0d\u540cPd\u51e0\u4f55\u5f62\u72b6\u548c\u5206\u6563\u6001\u7684Pd\/ND\u50ac\u5316\u5242\uff0c\u4ece\u5b64\u7acb\u7684\u5355\u539f\u5b50\u4f4d\u70b9\u5230\u5c11\u6570\u539f\u5b50\u7c07\u3001\u539f\u5b50\u5c42\u7c07\u548c2-10 nm NPs\u7684\u8d1f\u8f7d\u578bPd\u50ac\u5316\u5242\u3002\u4f5c\u8005\u5229\u7528\u8fd9\u516d\u79cd\u4e0d\u540cPd\u50ac\u5316\u5242\u7684\u7ed3\u6784\u654f\u611f\u6027\uff0c\u7cfb\u7edf\u5730\u7814\u7a76\u4e86DNEC\u548c\u56db\u6c22-N-\u4e59\u57fa\u5494\u5511\uff08TNEC\uff09\u7684\u8131\u6c22\u53cd\u5e94\u3002\u901a\u8fc7\u7ed3\u5408\u5355\u539f\u5b50\u654f\u611f\u7535\u5b50\u663e\u5fae\u955c\u3001\u5355\u4f4d\u70b9\u654f\u611f\u5149\u5b66\u5149\u8c31\u548c\u5757\u72b6\u654f\u611fX\u5c04\u7ebf\u5438\u6536\u5149\u8c31\uff0c\u4f5c\u8005\u5b9a\u91cf\u786e\u5b9a\u4e86\u4e00\u7cfb\u5217Pd\u50ac\u5316\u5242\u4e2d\u4e0d\u540cPd\u7269\u79cd\u7684\u7edf\u8ba1\u4f4d\u70b9\u5206\u5e03\u3002\u4f5c\u8005\u8fdb\u4e00\u6b65\u5efa\u7acb\u4e86Pd\u7269\u79cd\u7684\u5e73\u5747Pd-Pd\u914d\u4f4d\u6570\u4e0e\u7279\u5b9a\u4f4d\u70b9TOFs\u4e4b\u95f4\u7684\u76f8\u5173\u6027\uff0c\u53d1\u73b0Pd\u5355\u539f\u5b50\u4f4d\u70b9\u5bf9DNEC\u7684\u8131\u6c22\u53cd\u5e94\u65e0\u6548\u3002\u5728\u8fde\u7eed\u8131\u6c22\u53cd\u5e94\u4e2d\uff0c\u6700\u6d3b\u8dc3\u7684Pd\u7269\u79cd\u662f\u5b8c\u5168\u66b4\u9732\u7684\u539f\u5b50\u5c42\u72b6Pd\u7c07\uff0c\u5176\u5e73\u5747Pd-Pd\u914d\u4f4d\u6570\u7ea6\u4e3a4.4\uff0c\u4ee3\u8868\u4e86\u539f\u5b50\u5229\u7528\u6548\u7387\u548c\u53cd\u5e94\u7269\u5438\u9644\/\u8f6c\u5316\u7684\u6709\u5229\u6574\u4f53\u8981\u6c42\u7684\u6700\u6709\u6548\u7ec4\u5408\u3002\u7814\u7a76\u6210\u679c\u4ee5\u9898\u4e3a\u201cFully exposed palladium cluster catalysts enable hydrogen production from nitrogen heterocycles\u201d<\/strong>\u53d1\u5e03\u5728\u56fd\u9645\u8457\u540d\u671f\u520aNature Catalysis<\/em>\u4e0a\u3002<\/p>\n

\u672c\u6587\u6240\u6709\u56fe\u6765\u6e90\u4e8e\u00a9 2022 Springer Nature Limited\u00a0<\/span><\/strong>
\n \"\"<\/p>\n

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

1\u3001\u5229\u7528\u8fd9\u516d\u79cd\u4e0d\u540cPd\u50ac\u5316\u5242\u7684\u7ed3\u6784\u654f\u611f\u6027\uff0c\u7cfb\u7edf\u5730\u7814\u7a76\u4e86DNEC\u548c\u56db\u6c22-N-\u4e59\u57fa\u5494\u5511\uff08TNEC\uff09\u7684\u8131\u6c22\u53cd\u5e94\u3002<\/p>\n

2\u3001\u5728\u8fde\u7eed\u8131\u6c22\u53cd\u5e94\u4e2d\uff0c\u6700\u6d3b\u8dc3Pd\u7269\u79cd\u662f\u5b8c\u5168\u66b4\u9732\u7684\u539f\u5b50\u5c42\u72b6Pd\u7c07\uff0c\u5e73\u5747Pd-Pd\u914d\u4f4d\u6570\u7ea6\u4e3a4.4\uff0c\u662f\u539f\u5b50\u5229\u7528\u6548\u7387\u548c\u53cd\u5e94\u7269\u5438\u9644\/\u8f6c\u5316\u7684\u6700\u6709\u6548\u7ec4\u5408\u3002<\/p>\n

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

\u56fe1 \u8131\u6c22\u8fc7\u7a0b\u793a\u610f\u56fe<\/strong><\/p>\n

\"\"<\/p>\n

\u56fe2 \u4e0d\u540cPd\/ND\u50ac\u5316\u5242\u7684\u7ed3\u6784<\/strong>
\n \"\"\uff08a-f\uff09Pd1<\/sub>\/ND\u3001Pdn1<\/sub>\/ND\u3001Pdn2<\/sub>\/ND\u3001Pdp1<\/sub>\/ND\u3001Pdp2<\/sub>\/ND\u548cPdp3<\/sub>\/ND\u7684\u539f\u5b50\u5206\u8fa8HAADF-STEM\u56fe\u50cf\uff1b<\/p>\n

\uff08g\uff09\u4e0d\u540cPd\/ND\u50ac\u5316\u5242\u7684CO-probe DRIFT\u5149\u8c31\u3002<\/p>\n

\u56fe3 \u4e0d\u540cPd\/ND\u50ac\u5316\u5242\u7684\u914d\u4f4d\u548c\u7535\u5b50\u6027\u8d28<\/strong>
\n \"\"\uff08a\uff09R\u7a7a\u95f4\u4e2d\u7684\u5085\u91cc\u53f6\u53d8\u6362k<\/em>2<\/sup>-weighted EXAFS\u5149\u8c31\uff1b<\/p>\n

\uff08b\uff09Pd 3d XPS\u5149\u8c31\uff1b<\/p>\n

\uff08c\uff09Pd1<\/sub>\/G\u3001Pd4<\/sub>\/G\u3001Pd13<\/sub>\/G\u548cPd(111)\u6a21\u578b\u914d\u7f6e\u7684Bader\u7535\u8377\u72b6\u6001\u3002<\/p>\n

\u56fe4 \u4e0d\u540cPd\u50ac\u5316\u5242\/\u4f4d\u70b9\u7684\u8131\u6c22\u6027\u80fd<\/strong>
\n \"\"\uff08a, c\uff09\u4e0d\u540c\u50ac\u5316\u5242\u5728DNEC\u548cTNEC\u8131\u6c22\u4e2d\u7684Pd\u5f52\u4e00\u5316\u6d3b\u6027\u548cTOF\u6027\u80fd\uff1b<\/p>\n

\uff08b, d\uff09DNEC\u548cTNEC\u8131\u6c22\u4e2d\u4e0d\u540c\u8d1f\u8f7dPd\u7269\u79cd\u7684\u4f4d\u70b9\u7279\u5b9aTOF\u4f5c\u4e3a\u5e73\u5747Pd-Pd\u914d\u4f4d\u6570\u7684\u51fd\u6570\u3002<\/p>\n

\u56fe5 DFT\u8ba1\u7b97Pd\u50ac\u5316\u7684DNEC\u8131\u6c22\u8fc7\u7a0b<\/strong>
\n \"\"\uff08a\uff09DNEC\u5728Pd1<\/sub>\/G\u3001Pd13<\/sub>\/G\u548cPd(111)\u4e0a\u8131\u6c22\u521d\u59cb\u9636\u6bb5\u7684\u53cd\u5e94\u8def\u5f84\u548c\u80fd\u91cf\u5206\u5e03\uff1b<\/p>\n

\uff08b\uff09\u76f8\u5e94\u7684\u8fc7\u6e21\u72b6\u6001\uff08TS\uff09\u914d\u7f6e\u3002<\/p>\n

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

\u7efc\u4e0a\u6240\u8ff0\uff0c\u4f5c\u8005\u7814\u7a76\u4e86\u4ee3\u8868\u6027\u6c22\u8f7d\u4f53DNEC\u7684\u8131\u6c22\u53cd\u5e94\uff0c\u4ece\u7eb3\u7c73\u5c3a\u5ea6\u5230\u539f\u5b50\u5c3a\u5ea6\u7684\u8d1f\u8f7dPd\u7269\u79cd\u7684\u7ed3\u6784\u654f\u611f\u6027\u3002\u901a\u8fc7\u5bf9Pd\u7684\u4f4d\u70b9\u5206\u5e03\u8fdb\u884c\u7ed3\u6784\u5206\u6790\u548c\u5f62\u6001\u5206\u6790\uff0c\u786e\u5b9a\u5e73\u5747Pd-Pd\u914d\u4f4d\u6570\u7ea6\u4e3a4.4\u7684\u5b8c\u5168\u66b4\u9732\u7684\u539f\u5b50\u5c42\u72b6Pd\u7c07\u4e3a\u6700\u4f73Pd\u7269\u79cd\uff0c\u4e0e\u8f83\u5927\u7684Pd\u9897\u7c92\uff08\u5e73\u5747Pd-Pd\u914d\u4f4d\u6570\u22656.9\uff09\u76f8\u6bd4\uff0c\u8868\u73b0\u51fa\u66f4\u9ad8\u7684\u539f\u5b50\u6548\u7387\u548c\u672c\u5f81\u6d3b\u6027\u3002DFT\u7ed3\u679c\u8868\u660e\uff0c\u5982\u679c\u6ca1\u6709\u8db3\u591f\u6570\u91cf\u7684\u8fde\u7eedPd\u4f4d\u70b9\uff0c\u53cd\u5e94\u7269\u65e0\u6cd5\u6709\u6548\u6d3b\u5316\uff0c\u800c\u4ea7\u7269\u4e0e\u91d1\u5c5ePd\u6676\u4f53\u8868\u9762\u4e4b\u95f4\u7684\u5f3a\u952e\u5408\u4f7f\u8131\u9644\u8fc7\u7a0b\u7f13\u6162\u3002\u7531\u4e8e\u5177\u6709\u8f83\u9ad8\u7684\u91d1\u5c5e\u5206\u6563\u6027\u3001\u72ec\u7279\u7684\u7535\u5b50\u6027\u8d28\u548c\u5408\u9002\u7684\u7cfb\u7efc\u5c3a\u5bf8\uff0c\u53cd\u5e94\u7269\u7684\u6d3b\u5316\u548c\u4ea7\u7269\u7684\u8131\u9644\u90fd\u6bd4\u5b8c\u5168\u66b4\u9732\u7684\u539f\u5b50\u5c42\u72b6Pd\u7c07\u6709\u5229\u3002\u8be5\u7814\u7a76\u6307\u51fa\u5728\u8bbe\u8ba1\u5b9e\u7528\u50ac\u5316\u5242\u65f6\uff0c\u5e73\u8861\u539f\u5b50\u8272\u6563\u548c\u7cfb\u7efc\u8981\u6c42\u7684\u91cd\u8981\u6027\uff0c\u4ee5\u540c\u65f6\u5b9e\u73b0\u66f4\u9ad8\u7684\u91d1\u5c5e\u548c\u8d28\u91cf\u5f52\u4e00\u5316\u50ac\u5316\u6548\u7387\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1aFully exposed palladium cluster catalysts enable hydrogen production from nitrogen heterocycles<\/a><\/strong>. Nature Catalysis<\/em>, 2022<\/strong>, DOI: 10.1038\/s41929-022-00769-4.<\/p>\n

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

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