Facile synthesis of microcellular foam catalysts with adjustable hierarchical porous structure, acid–base strength and wettability for biomass energy conversion

2015 ◽  
Vol 3 (25) ◽  
pp. 13507-13518 ◽  
Author(s):  
Heping Gao ◽  
Jianming Pan ◽  
Donglai Han ◽  
Yunlei Zhang ◽  
Weidong Shi ◽  
...  
Keyword(s):  
Porous Structure ◽  
Biomass Energy ◽  
Hierarchical Porous Structure ◽  
Facile Synthesis ◽  
Acid Base ◽  
Microcellular Foam ◽  
One Pot ◽  
Hierarchical Porous ◽  
Porous Properties ◽  
Base Strength

Microcellular foam catalysts with hydrophobic, acid–base, and hierarchical porous properties for conversion of one-pot cellulose to HMF have been synthesized.

One-pot, template-free synthesis of a robust superhydrophobic polymer monolith with an adjustable hierarchical porous structure

2016 ◽  
Vol 18 (19) ◽  
pp. 5266-5272 ◽  
Author(s):  
Yong Li ◽  
Zhaozhu Zhang ◽  
Bo Ge ◽  
Xuehu Men ◽  
Qunji Xue
Keyword(s):  
Porous Structure ◽  
Hierarchical Porous Structure ◽  
One Pot ◽  
Polymer Monoliths ◽  
Hierarchical Porosity ◽  
Free Process ◽  
Hierarchical Porous ◽  
Polymer Monolith ◽  
Template Free ◽  
Damage Tolerant

Multifunctional polymer monoliths with both tunable hierarchical porosity and damage-tolerant superhydrophobic properties are fabricated via a one-pot, template-free process.

scholarly journals Effect of Furfurylation on Hierarchical Porous Structure of Poplar Wood

Polymers ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 32
Author(s):  
Xiaoshuang Shen ◽  
Pan Jiang ◽  
Dengkang Guo ◽  
Gaiyun Li ◽  
Fuxiang Chu ◽  
...  
Keyword(s):  
Porous Structure ◽  
Value Added ◽  
Untreated Wood ◽  
Weight Percent Gain ◽  
Wood Properties ◽  
Weight Percent ◽  
Acoustic Properties ◽  
Hierarchical Porous Structure ◽  
Wood Processing ◽  
Hierarchical Porous

Some wood properties (such as permeability and acoustic properties) are closely related to its hierarchical porous structure, which is responsible for its potential applications. In this study, the effect of wood impregnation with furfuryl alcohol on its hierarchical porous structure was investigated by microscopy, mercury intrusion porosimetry and nuclear magnetic resonance cryoporometry. Results indicated decreasing lumina diameters and increasing cell wall thickness of various cells after modification. These alterations became serious with enhancing weight percent gain (WPG). Some perforations and pits were also occluded. Compared with those of untreated wood, the porosity and pore volume of two furfurylated woods decreased at most of the pore diameters, which became more remarkable with raising WPG. The majority of pore sizes (diameters of 1000~100,000 nm and 10~80 nm) of macrospores and micro-mesopores of two furfurylated woods were the same as those of untreated wood. This work could offer thorough knowledge of the hierarchical porous structure of impregnatedly modified wood and pore-related properties, thereby providing guidance for subsequent wood processing and value-added applications.

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