Band‐gap Narrowing of Highly Stable Heterogeneous ZrO2‐ZnO Nanocomposites for the Reductive Amination of Carbonyl Compounds with HCO2H/Et3N
作者:Kanchan Mishra、Sung Hong Kim、Yong Rok Lee
DOI:10.1002/cssc.201802460
日期:——
The band gap of a material can be affected by factors such as size, doping materials, and oxygen vacancies. The decrease in band gap and change in state of ZrO2 with the addition of ZnO indicates interfacial interactions between ZrO2 and ZnO in the nanocomposites (NCs), which is further confirmed by the observed shift of the peaks in the Raman spectra. Heterobimetallic ZrO2–ZnO NCs were synthesized
材料的带隙会受到尺寸,掺杂材料和氧空位等因素的影响。添加ZnO时,带隙的减小和ZrO 2的状态变化表明纳米复合材料(NCs)中ZrO 2和ZnO之间的界面相互作用,这在拉曼光谱中观察到的峰位移进一步证实了。通过从当归Nakai根提取物中分离得到的蔗糖,通过可持续的绿色方法合成了异双金属ZrO 2 -ZnO NCs 。高度稳定的NCs具有出色的催化活性,可利用HCO 2 H /(CH 3 CH 2)3对羰基化合物进行还原胺化N作为氢源。NCs的高催化性能与窄带隙和ZrO 2与ZnO在NCs中的协同作用密切相关。