Nanotubular Gamma Alumina with High-Energy External Surfaces: Synthesis and High Performance for Catalysis

Cai, Weimeng1; Zhang, Shengen1; Lv, Jiangang1; Chen, Junchao1; Yang, Jie1; Wang, Yibo1; Guo, Xuefeng1; Peng, Luming1; Ding, Weiping1; Chen, Yi1; Lei, Yanhua1,3; Chen, Zhaoxu1; Yang, Weimin2; Xie, Zaiku2

2017-06

10.1021/acscatal.7b00080

ACS Catalysis   影响因子和分区

2155-5435

Inorganic nanocrystals catalysts with a high proportion of high-energy surfaces can bring about high performance for catalysis and has been an important research topic in the past decades. Gamma alumina is one of the most important inorganic oxides used as solid acids or catalytic support for many more industrial catalysts. However, the preparation of gamma alumina mainly with high-energy external surfaces has never been reported because it has a complicated crystal structure. We demonstrate here in depth a new-type gamma-alumina material from a systematic investigation, which is controllably synthesized as regular nanotubes with high-energy {1 1 1} facets as main external surfaces. The new-type material shows much better performance as acid catalyst or catalytic support for metals, as compared with common gamma-alumina whose main exposed surface is stable {100} or {110} facets in irregular morphology. As an example, palladium loaded on the new-type gamma-alumina is easily prepared in higher dispersion and unique electronic states upon the stronger interaction with the support, giving rise to better catalytic performance for semihydrogenation of alkynes, without any assistance of other metals. The systematic investigation should open opportunities of catalyst innovation for new chemical reactions.

crystal planes gamma alumina nanotubes palladium and support interaction solid acids hydrogenation DFT calculations

SCI ; EI

英语

其他

National Natural Science Foundation of China[20673054] ; National Natural Science Foundation of China[21273103] ; National Natural Science Foundation of China[21273107] ; National Natural Science Foundation of China[91434101]

Chemistry

Chemistry, Physical

WOS:000402851600046

AMER CHEMICAL SOC

20172403772102

Aluminum oxide ; Catalyst supports ; Crystal structure ; Dispersions ; Hydrogenation ; Nanocatalysts ; Nanocrystals ; Nanotubes ; Yarn

Nanotechnology:761 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Fiber Products:819.4 ; Crystal Lattice:933.1.1 ; Materials Science:951

Web of Science

1.Nanjing Univ, Dept Chem, Lab Mesoscop Chem, Nanjing 210093, Jiangsu, Peoples R China
2.Sinopec Shanghai Res Inst Petrolchem Technol, Shanghai 201208, Peoples R China
3.South Univ Sci & Technol China, Dept Phys, Shenzhen 518055, Peoples R China

Cai, Weimeng,Zhang, Shengen,Lv, Jiangang,et al. Nanotubular Gamma Alumina with High-Energy External Surfaces: Synthesis and High Performance for Catalysis[J]. ACS Catalysis,2017,7(6):4083-4092.

Cai, Weimeng.,Zhang, Shengen.,Lv, Jiangang.,Chen, Junchao.,Yang, Jie.,...&Xie, Zaiku.(2017).Nanotubular Gamma Alumina with High-Energy External Surfaces: Synthesis and High Performance for Catalysis.ACS Catalysis,7(6),4083-4092.

Cai, Weimeng,et al."Nanotubular Gamma Alumina with High-Energy External Surfaces: Synthesis and High Performance for Catalysis".ACS Catalysis 7.6(2017):4083-4092.