Narendra Kumar Alam Venugopal, Li Yinghao, Yin Shuli, Li Chunjie, Xue Hairong, Xu You, Li Xiaonian, Wang Hongjing, Wang Liang
State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, P.R. China.
Chem Asian J. 2018 May 28. doi: 10.1002/asia.201800651.
Tailoring metal oxide nanostructures with mesoporous architectures is vital to improve their electrocatalytic performance. Herein, we demonstrate the synthesis of 2D mesoporous Co O (meso-Co O ) nanobundles with uniform shape and size by employing a hard-template method. In this study, the incipient wetness impregnation technique has been chosen for loading metal precursor into the silica hard template (SBA-15). The results reveal that the concentration of a saturated precursor solution plays a vital role in mesostructured ordering, as well as the size and shape of the final meso-Co O product. The optimized precursor concentration allows us to synthesize ordered meso-Co O with four to seven nanowires in each particle. The meso-Co O structure exhibits excellent electrocatalytic activity for both glucose and water oxidation reactions.
定制具有介孔结构的金属氧化物纳米结构对于提高其电催化性能至关重要。在此，我们展示了通过采用硬模板法合成形状和尺寸均匀的二维介孔CoO（介孔CoO）纳米束。在本研究中，选择初湿浸渍技术将金属前驱体负载到二氧化硅硬模板（SBA-15）中。结果表明，饱和前驱体溶液的浓度对介观结构的有序性以及最终介孔CoO产物的尺寸和形状起着至关重要的作用。优化后的前驱体浓度使我们能够合成每个颗粒中有四到七根纳米线的有序介孔CoO。介孔CoO结构对葡萄糖和水氧化反应均表现出优异的电催化活性。
