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Shape-Controlled Dodecaborate Supramolecular Organic-Framework-Supported Ultrafine Trimetallic PtCoNi for Catalytic Hydrolysis of Ammonia Borane
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2019-06-10 00:00:00 , DOI: 10.1021/acsami.9b02963
Bin Qi , Liuyi Du , Fengze Yao , Shuran Xu , Xuefan Deng , Mai Zheng , Suhang He 1 , Haibo Zhang , Xiaohai Zhou
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2019-06-10 00:00:00 , DOI: 10.1021/acsami.9b02963
Bin Qi , Liuyi Du , Fengze Yao , Shuran Xu , Xuefan Deng , Mai Zheng , Suhang He 1 , Haibo Zhang , Xiaohai Zhou
Affiliation
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On the basis of the unique chaotropic supramolecular assembly of cucurbit[5]uril (CB5) and dodecahydro-closo-dodecaborate anion [closo-B12H12]2–, we have developed an efficient and universal platform to fabricate shape-controlled dodecaborate-based supramolecular organic frameworks (BOFs) decorated with ultrafine monodispersed trimetallic alloys. Simply by regulating the molar ratio of CB5 and [closo-B12H12]2–, a series of fascinating morphologies, such as flowerlike structures, nanorods, nanocubes, and nanosheets, were successfully constructed. These obtained BOFs were proved to be good substrate supports for in situ synthesis of trimetallic PtCoNi nanoalloys, where the final PtCoNi–BOFs materials were obtained efficiently as a precipitate from aqueous solutions, and showed excellent catalytic performance in ammonia borane hydrolysis with a high turnover frequency of 1490 molH2 molPt–1 min–1 and a low activation energy of 15.79 kJ mol–1.
中文翻译:
形状控制的十二分解型超分子有机骨架支撑的超细三金属PtCoNi催化氨硼烷的水解
上特有的超分子离液葫芦[5]脲(CB5)和十二氢的组件的基础闭合碳-dodecaborate阴离子[闭合碳-B 12 ħ 12 ] 2-,我们已经开发出一种高效和通用平台以制造形状受控十二硼酸超细单分散三金属合金修饰的超分子有机骨架(BOF)。只需通过调节CB5和[ closo -B 12 H 12 ] 2–的摩尔比即可,成功构建了一系列引人入胜的形态,例如花状结构,纳米棒,纳米立方体和纳米片。这些获得的BOF被证明是原位合成三金属PtCoNi纳米合金的良好载体,其中最终的PtCoNi–BOFs材料以水溶液的沉淀形式有效地获得,并在氨硼烷水解中表现出优异的催化性能,且具有高周转率1490 mol H 2 mol Pt –1 min –1的活化能和15.79 kJ mol –1的低活化能。
更新日期:2019-06-10
中文翻译:
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形状控制的十二分解型超分子有机骨架支撑的超细三金属PtCoNi催化氨硼烷的水解
上特有的超分子离液葫芦[5]脲(CB5)和十二氢的组件的基础闭合碳-dodecaborate阴离子[闭合碳-B 12 ħ 12 ] 2-,我们已经开发出一种高效和通用平台以制造形状受控十二硼酸超细单分散三金属合金修饰的超分子有机骨架(BOF)。只需通过调节CB5和[ closo -B 12 H 12 ] 2–的摩尔比即可,成功构建了一系列引人入胜的形态,例如花状结构,纳米棒,纳米立方体和纳米片。这些获得的BOF被证明是原位合成三金属PtCoNi纳米合金的良好载体,其中最终的PtCoNi–BOFs材料以水溶液的沉淀形式有效地获得,并在氨硼烷水解中表现出优异的催化性能,且具有高周转率1490 mol H 2 mol Pt –1 min –1的活化能和15.79 kJ mol –1的低活化能。