Microwave-antenna induced in situ synthesis of Cu nanowire threaded ZIF-8 with enhanced catalytic activity in H2 production
Microwave-antenna induced in situ synthesis of Cu nanowire threaded ZIF-8 with enhanced catalytic activity in H2 production
复制标题
微波天线诱导原位合成铜纳米线螺纹 ZIF-8，增强产氢催化活性
DOI：
10.1039/c5nr07505j
复制
发表时间：
2016
期刊：
影响因子：
6.7
通讯作者：
Yamashita Hiromi
中科院分区：
文献类型：
--
作者：
Zhang Dieqing;Liu Peijue;Xiao Shuning;Qian Xufang;Zhang Hui;Wen Meicheng;Kuwahara Yasutaka;Mori Kohsuke;Li Hexing;Yamashita Hiromi
提出了一种微波天线原位合成Cu纳米线（CuNW）螺纹ZIF-8的方法。cunw充当微波天线，在表面产生“超级热”点。“超热”点的高温诱导了金属离子和有机配体的吸附和配位，然后沿着cunw进行原位组装和晶体生长。由于协同作用，该催化剂在NH3BH3水解制氢过程中表现出较高的活性和稳定性。CuNWs提供了一个快速的电子转移通道，而组装在CuNWs上的ZIF-8提供了大容量的吸附反应物和快速将H−/H+离子转移到Cu活性位点的通道。其他一维螺纹mof也可以采用微波天线策略制备，包括CuNW螺纹MOF-5和UIO-66，或碳纳米管螺纹ZIF-8和ZIF-67。
A microwave-antenna strategy was developed for the in situ synthesis of Cu nanowire (CuNW) threaded ZIF-8. The CuNWs acted as microwave-antennas to generate surface “super hot” dots. The high temperature of “super hot” dots induced adsorption and coordination of metal ions and organic ligands, followed by in situ assembly and crystal-growth along the CuNWs. This catalyst exhibited high activity and stability in H2 production via NH3BH3 hydrolysis owing to the synergetic effect. The CuNWs supplied a rapid electron transfer channel while ZIF-8 assembled on the CuNWs offered a large capacity for adsorbing reactants and channels for rapidly transferring H−/H+ ions toward Cu active sites. Other one-dimensional threaded MOFs, including CuNW threaded MOF-5 and UIO-66, or carbon nanotube threaded ZIF-8 and ZIF-67 could also be prepared using the microwave-antenna strategy.