Results 31 to 40 of about 477,176 (308)

Thermal desorption of ammonia from crystalline forsterite surfaces

, 2015
The thermal desorption of ammonia (NH$_3$) from single crystal forsterite (010) has been investigated using temperature-programmed desorption. The effect of defects on the desorption process has been probed by the use of a rough cut forsterite surface ...
Suhasaria, T., Thrower, J. D., Zacharias, H.   +2 more
core   +1 more source

Molecular simulation of rapid translocation of cholesterol, diacylglycerol, and ceramide in model raft and nonraft membranes

Journal of Lipid Research, 2012
The translocation of lipids across membranes (flip-flop) is an important biological process. Slow exchange on a physiological timescale allows the creation of asymmetric distributions of lipids across cellular membranes.
W. F. Drew Bennett, D. Peter Tieleman
doaj   +1 more source

Photodesorption of CO ice [PDF]

, 2007
At the high densities and low temperatures found in star forming regions, all molecules other than H2 should stick on dust grains on timescales shorter than the cloud lifetimes. Yet these clouds are detected in the millimeter lines of gaseous CO.
Ewine F. van Dishoeck, Guido W. Fuchs, Harold Linnartz, Hartquist T. W., Helen J. Fraser, Karin I. Öberg, Leger A., Stephan Schlemmer, Zainab Awad   +8 more
core   +2 more sources

Adsorption, desorption, resorption

Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1963
The complete characterization of batch adsorption from solution, desorption, and related phenomena have been interpreted in the light of a general equation. The forward and reverse adsorption-rate constants and the adsorptive capacity comprise the only parameters. Where adsorption alone is of importance and the desorption-rate constant can be neglected,
openaire   +2 more sources

Determination of NH4+ and NO3- Adsorption and Desorption Capacities of Biochars Produced at Different Temperatures

Turkish Journal of Agriculture: Food Science and Technology
This study investigates the adsorption and desorption capacities of corn cob biochars produced at three different pyrolysis temperatures. Adsorption experiments were conducted using ammonium (NH4+) and nitrate (NO3-) solutions at concentrations 5, 10, 25,
Cabir Çağrı Gence, Halil Erdem
doaj   +1 more source

Preparation and Testing of Polyethylenimine-Impregnated Silica Gel for CO₂ Capture

Gels
This work studied the low-temperature sorption of carbon dioxide on impregnated silica gel. An impregnating agent was used polyethyleneimine. The content of the impregnating agent in the silica gel matrix was 33.4 wt.%.
Veronika Kyselová, Jakub Havlín, Karel Ciahotný   +2 more
doaj   +1 more source

CO2 Adsorption and Desorption by Waste Ion-Exchange Resin–Based Activated Carbon on Fixed Bed

Frontiers in Energy Research, 2021
The waste ion-exchange resin–based activated carbon (WIRAC) was utilized for CO2 adsorption. The effect of adsorption temperature, gas flow, CO2 concentration, and adsorbent filling content on CO2 adsorption properties of WIRAC and the effect of ...
Mengqi Wei, Mengqi Wei, Qiuyue Zhao
doaj   +1 more source

Heat-Integrated Liquid–Desorption Exchanger (HILDE) for CO2 Desorption

Energy Procedia, 2016
AbstractA novel type of separating heat exchanger, called a heat-integrated liquid−desorption exchanger (HILDE), applied to a typical CO2 desorption process, has been investigated both numerically and experimentally. Process simulations, hydrodynamic and mass transfer experiments, and a preliminary cost evaluation have been used to compare HILDE to the
Ham, L.V. van der, Khakharia, P.M., Goetheer, E.L.V.   +2 more
openaire   +2 more sources

Adsorption and desorption mechanisms on graphene oxide nanosheets: Kinetics and tuning

The Innovation, 2021
A knowledge of the adsorption and desorption behavior of sorbates on surface adsorptive site (SAS) is the key to optimizing the chemical reactivity of catalysts.
Xiaodan Qu, Qiong Hu, Zhongqian Song, Zhonghui Sun, Baohua Zhang, Jialing Zhong, Xuyou Cao, Yuanjin Liu, Bolin Zhao, Zhenbang Liu, Yujie Shen, Yu Bao, Zhenxin Wang, Yuwei Zhang, Li Niu   +14 more
doaj   +1 more source

Desorption kinetics and interaction of Xe with single-wall carbon nanotube bundles

, 2002
We present a study on the kinetics of xenon desorption from single-wall carbon nanotube (SWNT) bundles using thermal desorption spectroscopy (TDS). TD-spectra from SWNT samples show a broad desorption feature peaked at significantly higher temperature ...
Bienfait, Calbi, Collins, Fujiwara, Grimm, Gunnar Moos, Hendrik Ulbricht, Hertel, Hong, Jennah Kriebel, Kissinger, Kong, Kuznetsova, Kuznetsova, Kuznetsova, Langmuir, Muris, Niwa, Rinzler, Ruiz-Suarez, Sawa, Schlichting, Sharma, Simonyan, Stan, Talapatra, Tobias Hertel, Venables, Zambano   +28 more
core   +1 more source