1. General Synthesis of Ordered Mesoporous Carbonaceous Hybrid Nanostructures with Molecularly Dispersed Polyoxometallates
- Author
-
Yiyao Ge, Zhe Wang, Yong Wang, Chen Chunhong, Chaoliang Tan, Xiao Zhang, Shanjun Mao, Zhanxi Fan, Qinglang Ma, Guodong Qi, and Jun Xu
- Subjects
Materials science ,010405 organic chemistry ,General Chemistry ,General Medicine ,Silicotungstic acid ,010402 general chemistry ,01 natural sciences ,Catalysis ,Ammonium phosphomolybdate ,0104 chemical sciences ,Nanomaterials ,chemistry.chemical_compound ,Hydrothermal carbonization ,chemistry ,Chemical engineering ,Nanorod ,Phosphotungstic acid ,Mesoporous material - Abstract
Hybrid nanomaterials with controlled dimensions, intriguing components and ordered structures have attracted significant attention in nanoscience and technology. Herein, we report a facile and green polyoxometallate (POM)-assisted hydrothermal carbonization strategy for synthesis of carbonaceous hybrid nanomaterials with molecularly dispersed POMs and ordered mesopores. By using various polyoxometallates such as ammonium phosphomolybdate, silicotungstic acid, and phosphotungstic acid, our approach can be generalized to synthesize ordered mesoporous hybrid nanostructures with diverse compositions and morphologies (nanosheet-assembled hierarchical architectures, nanospheres, and nanorods). Moreover, the ordered mesoporous nanosheet-assembled hierarchical hybrids with molecularly dispersed POMs exhibit remarkable catalytic activity toward the dehydration of tert-butanol with the high isobutene selectivity (100 %) and long-term catalytic durability (80 h).
- Published
- 2021