Importance of porous structure and synergistic effect on the catalytic oxidation activities over hierarchical Mn–Ni composite oxides

2016 ◽  
Vol 6 (6) ◽  
pp. 1710-1718 ◽  
Author(s):  
Wenxiang Tang ◽  
Yuzhou Deng ◽  
Wenhui Li ◽  
Jiaqi Li ◽  
Gang Liu ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Porous Structure ◽  
Catalytic Oxidation ◽  
Hierarchically Porous ◽  
Composite Oxides ◽  
Oxalate Route ◽  
Catalytic Removal

Hierarchically porous manganese–nickel composite oxides (MNCOs) were successfully synthesized by an oxalate route and further applied for catalytic removal of benzene.

Catalytic oxidation of dichloromethane over Pt-Co/HZSM-5 catalyst: Synergistic effect of single-atom Pt, Co3O4, and HZSM-5

2021 ◽  
Vol 288 ◽  
pp. 119980
Author(s):  
Yun Su ◽  
Kaixuan Fu ◽  
Yanfei Zheng ◽  
Na Ji ◽  
Chunfeng Song ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Catalytic Oxidation ◽  
Single Atom

scholarly journals Highly efficient evaporative cooling by all-day water evaporation using hierarchically porous biomass

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jihun Choi ◽  
Hansol Lee ◽  
Bokyeong Sohn ◽  
Minjae Song ◽  
Sangmin Jeon
Keyword(s):  
Porous Structure ◽  
Fiber Length ◽  
Evaporation Rate ◽  
Water Evaporation ◽  
Thickness Direction ◽  
Hierarchically Porous ◽  
Hierarchically Porous Structure ◽  
Length Direction ◽  
Luffa Sponge ◽  
Fiber Thickness

AbstractWe developed a 3D solar steam generator with the highest evaporation rate reported so far using a carbonized luffa sponge (CLS). The luffa sponge consisted of entangled fibers with a hierarchically porous structure; macropores between fibers, micro-sized pores in the fiber-thickness direction, and microchannels in the fiber-length direction. This structure remained after carbonization and played an important role in water transport. When the CLS was placed in the water, the microchannels in the fiber-length direction transported water to the top surface of the CLS by capillary action, and the micro-sized pores in the fiber-thickness direction delivered water to the entire fiber surface. The water evaporation rate under 1-sun illumination was 3.7 kg/m2/h, which increased to 14.5 kg/m2/h under 2 m/s wind that corresponded to the highest evaporation rate ever reported under the same condition. The high evaporation performance of the CLS was attributed to its hierarchically porous structure. In addition, it was found that the air temperature dropped by 3.6 °C when the wind passed through the CLS because of the absorption of the latent heat of vaporization. The heat absorbed by the CLS during water evaporation was calculated to be 9.7 kW/m2 under 1-sun illumination and 2 m/s wind, which was 10 times higher than the solar energy irradiated on the same area (1 kW/m2).

Significantly improved and synergistic effect of Pt–ZnO–Bi2O3 ternary hetero-junctions toward anode-catalytic oxidation of methanol in alkali

2019 ◽  
Vol 322 ◽  
pp. 134775 ◽  
Author(s):  
Kamal Kanti Bera ◽  
Malay Chakraborty ◽  
Sreya Roy Chowdhury ◽  
Apurba Ray ◽  
Sachindranath Das ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Catalytic Oxidation ◽  
Oxidation Of Methanol

A bio-inspired, hierarchically porous structure with a decoupled fluidic transportation and evaporative pathway toward high-performance evaporation

2021 ◽  
Author(s):  
Jianguo Li ◽  
Chaoji Chen ◽  
Wentao Gan ◽  
Zhihan Li ◽  
Hua Xie ◽  
...  
Keyword(s):  
Porous Structure ◽  
High Performance ◽  
Evaporation Rate ◽  
High Rate ◽  
Hierarchically Porous ◽  
Hierarchically Porous Structure ◽  
High Evaporation Rate

High-rate evaporation is achieved by a delignified reed, featuring hierarchically, 3D porous structure with microchannels surrounding macrochannels, which decouples the transport and evaporation of fluids, contributing to a high evaporation rate.

Solvent-free liquid-phase selective catalytic oxidation of toluene to benzyl alcohol and benzaldehyde over CeO2-MnOx composite oxides

2022 ◽  
Author(s):  
Gui Chen ◽  
Kuiyi You ◽  
Xiangbo Gong ◽  
Fangfang Zhao ◽  
Zhenpan Chen ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Benzyl Alcohol ◽  
Catalytic Oxidation ◽  
Molecular Oxygen ◽  
Efficient Method ◽  
Value Added ◽  
Solvent Free ◽  
Composite Oxides ◽  
Selective Catalytic Oxidation

An efficient method for highly selective preparation of the high value-added benzyl alcohol (BOL) and benzaldehyde (BAL) from liquid-phase catalytic oxidation of toluene with molecular oxygen over CeO2-MnOx composite oxides...

scholarly journals Winter-jujube-derived carbon with self-doped heteroatoms and a hierarchically porous structure for high-performance supercapacitors

RSC Advances ◽  
2017 ◽  
Vol 7 (69) ◽  
pp. 43356-43365 ◽  
Author(s):  
Yuanyuan Li ◽  
Kaiwen Zheng ◽  
Sayyed Asim Ali Shah ◽  
Yizhou Huang ◽  
Yazhou Tian ◽  
...  
Keyword(s):  
Porous Structure ◽  
High Performance ◽  
Porous Structures ◽  
Hierarchically Porous ◽  
Hierarchically Porous Structure

The synthesized JC samples possessed abundant self-doped heteroatoms and hierarchically porous structures (the co-existence of micro-, meso-, and macropores).

Ternary nickel–iron sulfide microflowers as a robust electrocatalyst for bifunctional water splitting

2017 ◽  
Vol 5 (30) ◽  
pp. 15838-15844 ◽  
Author(s):  
Jiahao Yu ◽  
Gongzhen Cheng ◽  
Wei Luo
Keyword(s):  
Porous Structure ◽  
Water Splitting ◽  
Iron Sulfide ◽  
Ni Foam ◽  
Step Method ◽  
Hierarchically Porous ◽  
Nickel Iron ◽  
Hierarchically Porous Structure

3D ternary nickel iron sulfide microflowers with a hierarchically porous structure have been directly grown on Ni foam via a convenient two-step method for efficient bifunctional water splitting.

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