Preparation and ozone-surface modification of activated carbon. Thermal stability of oxygen surface groups

Glycerol hydrogenolysis to 1,2-propanediol (1,2-PDO) was performed over activated carbon supported copper-based catalysts. The catalysts were prepared by impregnation using a pristine carbon support and thermally-treated carbon supports (450, 600, 750, and 1000 °C). The final hydrogen adsorption capacity, porous structure, and total acidity of the catalysts were found to be important descriptors to understand catalytic performance. Oxygen surface groups on the support controlled copper dispersion by modifying acidic and adsorption properties. The amount of oxygen species of thermally modified carbon supports was also found to be a function of its specific surface area. Carbon supports with high specific surface areas contained large amount of oxygen surface species, inducing homogeneous distribution of Cu species on the carbon support during impregnation. The oxygen surface groups likely acted as anchorage centers, whereby the more stable oxygen surface groups after the reduction treatment produced an increase in the interaction of the copper species with the carbon support, and determined catalytic performances.

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Gas phase hydrogenation of crotonaldehyde over Pt/Activated carbon catalysts. Influence of the oxygen surface groups on the support

Applied Catalysis A General ◽

10.1016/s0926-860x(96)00301-8 ◽

1997 ◽

Vol 150 (1) ◽

pp. 165-183 ◽

Cited By ~ 108

Author(s):

F. Coloma ◽

A. Sepúlveda-Escribano ◽

J.L.G. Fierro ◽

F. Rodríguez-Reinoso

Keyword(s):

Activated Carbon ◽

Gas Phase ◽

Surface Groups ◽

Carbon Catalysts ◽

Oxygen Surface

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Enhanced thermal stability of carbon nanotubes by plasma surface modification in Al[sub 2]O[sub 3] composites

Journal of Applied Physics ◽

10.1063/1.2985915 ◽

2008 ◽

Vol 104 (7) ◽

pp. 074302 ◽

Cited By ~ 8

Author(s):

Hoonsung Cho ◽

Donglu Shi ◽

Yan Guo ◽

Jie Lian ◽

Zhifeng Ren ◽

...

Keyword(s):

Carbon Nanotubes ◽

Thermal Stability ◽

Surface Modification ◽

Plasma Surface Modification ◽

Plasma Surface ◽

Thermal Stability Of

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Thermal Stability of Oxygen-Containing Functional Groups on Activated Carbon Surfaces in a Thermal Oxidative Environment

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN ◽

10.1252/jcej.13we193 ◽

2014 ◽

Vol 47 (1) ◽

pp. 21-27 ◽

Cited By ~ 24

Author(s):

Liqing Li ◽

Xiaolong Yao ◽

Hailong Li ◽

Zheng Liu ◽

Weiwu Ma ◽

...

Keyword(s):

Thermal Stability ◽

Activated Carbon ◽

Functional Groups ◽

Carbon Surfaces ◽

Thermal Stability Of

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Surface modification effects on the thermal stability of cellulose nanostructures obtained from lignocellulosic residues

Journal of Thermal Analysis and Calorimetry ◽

10.1007/s10973-019-09109-4 ◽

2019 ◽

Vol 141 (4) ◽

pp. 1263-1277 ◽

Cited By ~ 2

Author(s):

Giovanni Floriano de Lima ◽

Alana Gabrieli de Souza ◽

Clara Rodrigues Bauli ◽

Rennan Felix da Silva Barbosa ◽

Daniel Belchior Rocha ◽

...

Keyword(s):

Thermal Stability ◽

Surface Modification ◽

Lignocellulosic Residues ◽

Thermal Stability Of

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Improved High Voltage Electrochemical Properties and Thermal Stability of LiNi0.6Co0.2Mn0.2 By Li3PO4 Surface Modification

ECS Meeting Abstracts ◽

10.1149/ma2016-03/2/482 ◽

2016 ◽

Keyword(s):

Thermal Stability ◽

Surface Modification ◽

Electrochemical Properties ◽

High Voltage ◽

Thermal Stability Of

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Utilization of Agro-Waste A. galanga Natural Fibers in Composites

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.634-638.1139 ◽

2013 ◽

Vol 634-638 ◽

pp. 1139-1142

Author(s):

Mohamad Awang ◽

Mohd Syahrizul Chik ◽

Mustapha Rohani ◽

Ali Noraaini

Keyword(s):

Thermal Stability ◽

Tensile Strength ◽

Surface Modification ◽

Modulus Of Elasticity ◽

Alkali Treatment ◽

Natural Fibers ◽

Alpinia Galanga ◽

Fiber Loading ◽

Thermal Stability Of

Utilization of locally abundant agro-waste Alpinia galanga (A. galanga) natural fibers in polyethylene (PE) was investigated. The results indicate that agro-waste fibers generally function as potential natural-organic fillers as well as show an attribute of reinforcement in PE-agro-waste composites at a certain fiber loading. Minimally reduced tensile strength from 28 MPa of unfilled PE, addition of agro-waste A. galanga natural fibers also resulted in reinforcement of up to 31 MPa at 6 wt% agro-waste fibers loading. Findings also reveal that alkali treatment was effective to impart surface modification of agro-waste A. galanga natural fibers and hence improved tensile strength, modulus of elasticity and thermal stability of PE-agro-waste composites.

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