Search

Your search keyword '"Chang, Liping"' showing total 975 results
Start Over Author "Chang, Liping"
975 results on '"Chang, Liping"'

103. Effect of Interaction between Pt and Different Crystalline Phases of TiO 2 on Benzene Oxidation.

Author

Cheng, Hang, Hu, Jiangliang, Wu, Dongxia, Bao, Weiren, Hou, Changming, Lv, Xianyan, Chang, Liping, and Wang, Jiancheng

Subjects
TITANIUM dioxide, REACTIVE oxygen species, BENZENE, CATALYTIC oxidation, OXIDATION
Abstract

To evaluate the effects of different TiO2 crystalline phases on the catalytic oxidation performance of benzene on Pt-loaded TiO2 catalysts, physicochemical examinations were conducted using several spectroscopic and analytical techniques. Obvious effects on the valence state and morphology of Pt were exhibited by different crystalline phases. The rutile phase favored the formation of specific Pt(111) crystal faces, which enhanced the amount of surface-active oxygen species. Moreover, the àPt-O-Ti species was formed between Pt4+ and Ti at the edge of the Pt nanoparticles, promoting both electron flow and the transfer of reactive oxygen species, thus accounting for catalytic activity. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

119. A Task-Oriented Self-organization Mechanism in Wireless Sensor Networks

Author

Yin, Xiang, Chang, Liping, Dai, Weichao, Li, Bin, Li, Chunxiao, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Yin, Hujun, editor, Gao, Yang, editor, Li, Bin, editor, Zhang, Daoqiang, editor, Yang, Ming, editor, Li, Yun, editor, Klawonn, Frank, editor, and Tallón-Ballesteros, Antonio J., editor

Published
2016
Full Text
View/download PDF

135. Effect of KOH addition on electrochemical properties of coal-based active carbon foams

Author

ZHOU, Huimin, YANG, Nuannuan, FU, Haichao, WANG, Meijun, SHEN, Yanfeng, LIU, Dong, WANG, Jiancheng, and CHANG, Liping

Abstract

Using strong-caking coking coal as raw material, coal-based carbon foam (NCF) was prepared by constant pressing and self-foaming method and used as carbon base to produce coal-based active carbon foamed (HPCs) together with KOH activator, which was used as electrode material for double-layer capacitor. The effects of KOH added by mechanical mixing, aqueous solution impregnation and ethanol solution impregnation methods on microstructure and electrochemical properties of the prepared materials were studied. The results show that formation of pore structure, crystal structure, surface chemistry and electrochemical performance of HPCs are significantly affected by KOH dispersion and adhesion. The NCF itself has a three-dimensional connected bubble pore structure, which is conducive to the activator (KOH) penetrating into the bubble pore and providing a large number of attachment sites, thus increasing the contact area between the activator and the carbon matrix and resulting in efficient activation. The good fluidity of KOH solution can make K+more effectively interspersed in the bubble structure of NCF, act on the defect site during activation, and generate more micropores and mesoporous structures on the internal matrix of carbon matrix, effectively amplifying the activation effect. ACF-W obtained by KOH aqueous impregnation has the highest specific surface area (3098.35 m2/g), total pore volume (1.68 cm3/g), mesoporous volume ratio (59.13%). It shows excellent specific capacitance (310 F/g) and cycle stability when used as electrode material.

Published
2024
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results