Results 61 to 70 of about 235,631 (302)

Competitive co-adsorption of CO2 with H2O, NH3, SO2, NO, NO2, N2, O2, and CH4 in M-MOF-74 (M= Mg, Co, Ni): the role of hydrogen bonding

, 2015
The importance of co-adsorption for applications of porous materials in gas separation has motivated fundamental studies, which have initially focused on the comparison of the binding energies of different gas molecules in the pores (i.e. energetics) and
Chabal, Yves J, Gao, Yuzhi, Gong, Qihan, Li, Jing, Nijem, Nour, Tan, Kui, Thonhauser, Timo, Zuluaga, Sebastian   +7 more
core   +1 more source

Unlocking Ultra‐Long Cycle Stability of Li Metal Electrode by Separators Modified by Porous Red Phosphorus Nanosheets

Advanced Functional Materials, EarlyView.
Coating the standard polypropylene separator with a porous red phosphorous nanosheet greatly improves cycling performance in Li electrode cells. The phosphorus‐based surface chemistry deactivates electrolyte solvent decomposition and enhances the cleavage of F‐containing salt, resulting in an inorganic‐dominated electrolyte interphase (SEI) composition
Jiangpeng Wang, Mingzi Sun, Feng Lang, Zhijun Cai, Xitao Hu, Yao Gao, Chao Lin, Xueqiang Zhang, Bolong Huang, Quan Li   +9 more
wiley   +1 more source

The effect of deep surface acceptor states on the temperature-dependent conductivity of zinc oxide nanoparticles

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов
An experimental and theoretical study was conducted on the temperature dependence of the conductivity of zinc oxide (ZnO) layers in dry air and ethanol. The study found that the conductivity of ZnO depends non-linearly on temperature, and its type varies
N.A. Klychkov, V.V. Simakov, I.V. Sinev
doaj   +1 more source

Electrode polarization at the Au, O2(g)/Fe implanted yttria-stabilized zirconia interface [PDF]

, 1992
Ion implantation has been applied to modify the surface properties of yttria-stabilized zirconia (YSZ). A three-electrode cell was used for measuring steady state current-overpotential curves and for determining the electrode impedance.
Boukamp, B.A., Burggraaf, A.J., Hassel, B.A. van   +2 more
core   +2 more sources

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

Advanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan, Marie Le Pivert, Alireza Ranjbari, Diana Dragoe, Daniel Bahena‐Uribe, Christophe Colbeau‐Justin, Christian Herrero, Dorota Rutkowska‐Zbik, Johnny Deschamps, Hynd Remita   +9 more
wiley   +1 more source

NANOSTRUCTURAL PROCESSES OF MELTING AND MOULDING OF STEEL

Литьë и металлургия, 2016
It is shown that melting and molding of steel are difficult physical and chemical nanostructural processes. In them the major role is played by the centers of crystallization of dendrites of austenite, austenite nanocrystals, the dissolved and adsorbed ...
V. Yu. Stetsenko
doaj  

Studies of the Adsorption of SO, H and O on a CrO Surface by an Electrical Conductivity Technique

Adsorption Science & Technology, 1999
Electrical conductivity measurements have been used to detect extremely small changes in the oxygen content of oxide semiconductors in contact with reducing or oxidizing gases. In continuation of previous studies, the oxygen loss of chromium oxide in H 2
Mahmoud M. Khader, Mahmoud M. Saleh, Ahmad M. Mohammad   +2 more
doaj   +1 more source

Precise control of surface oxygen vacancies in ZnO nanoparticles for extremely high acetone sensing response

Journal of Advanced Ceramics, 2022
ZnO has been studied intensely for chemical sensors due to its high sensitivity and fast response. Here, we present a simple approach to precisely control oxygen vacancy contents to provide significantly enhanced acetone sensing performance of commercial
Jihyun Lee, Youngmoon Choi, Byoung Joon Park, Jeong Woo Han, Hyun-Sook Lee, Jong Hyeok Park, Wooyoung Lee   +6 more
doaj   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

HYPEREUTECTIC SILUMIN.NANOSTRUCTURAL PROCESSES OF MELTING AND MOULDING

Литьë и металлургия, 2017
It is shown that melting and molding of hypereutectic silumin are complicated physical and chemical nanostructural processes. The major part at these processes is played by the centers of crystallization of primary crystals of silicon, silicon ...
V. Yu. Stetsenko
doaj