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nano-powder; surface activation agent PEG-6000; microwave assistance; co-precipitation; aqueous phase ... on their performance. In this work, surface activation agent PEG-6000 was used to prepare the ITO precursor by adopting microwave-assisted co-precipitation process, and ITO nano-powders was gained......
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Surface Cleaning or Activation?Control of Surface Condition Prior to Thermo-Chemical Heat Treatment Brigitte Haase1,Juan Dong2,Jens Heinlein2 (1.Hochschule Bremerhaven, Dpt. Of Process Engineering... and agents, others are so stable that their effects can only be overcome by applying an additional activation pre-treatment, e.g. oxynitriding. 关键词:thermochemical heat treatment; surface condition; surface......
Quantum-mechanical study of effect of lattice defects on surface properties and copper activation of sphalerite surface CHEN Jian-hua(陈建华)1, CHEN Ye(陈 晔)2, LI Yu-qiong(李玉琼)2 1. College... on the copper activation of sphalerite were investigated. Calculated results indicate that both Fe and Mn impurities narrow the band gap of sphalerite surface and lead to the Fermi level shifting......
, the activated carbon can be prepared via physical or chemical activation method. In the chemical activation process, the precursors are first impregnated with an activating agent solution. As a dehydrant... activation under vacuum and by chemical activation in nitrogen atmosphere. It can be seen that activated carbon A exhibits a surface with greater porosity compared with activated carbon B (also confirmed......
, the mechanism of mechanical activation is that a great amount of surface reactive sites are formed during their mechanical activation. The effects of mechanical activation are apparent. For brittle sulfide ores with thermal instability, and complete cleavage plane, the mechanism of mechanical activation is that a great amount of surface reactive sites are formed, and lattice deformation happens......
Effect of vacancy defects on electronic properties and activation of sphalerite (110) surface by first-principles CHEN Jian-hua(陈建华)1, CHEN Ye(陈 晔)2, LI Yu-qiong(李玉琼)2 1. College of Resources...: The electronic properties of sphalerite (110) surface with Zn-vacancy and S-vacancy were calculated by using density-functional theory, and the effects of vacancy defect on the copper activation of sphalerite were......
to the absorption of associated hydroxyls formed by the coupling agent molecules on the surface of the mineral [28]. The peak near 1637 cm-1 ascribed to the bending vibration mode of physisorbed water... J. Cent. South Univ. (2020) 27: 2494-2506 DOI: https://doi.org/10.1007/s11771-020-4475-y Comparison of microwave and conventional heating routes for kaolin thermal activation ZHANG Liang-jing(张良静)1......
SYNERGISTIC ACTIVATION OF CHELATING AGENT ON XANTHATE DURING THE FLOTATION OF REFRACTORY COPPER OXIDIZED ORES徐晓军,刘邦瑞摘 要:<正>Abstract:For realizing... Freundlich‘s adsorptionequation on malachite and Chrysocolla surfaces. The high chemical activityof chelating agent and its synergistic activation on xanthate are the key toimproving xanthate colle关......
Surface Modification of Fire-retardant Asphalt with Silane Coupling Agent陈辉强School of Civil Engineering & Architecture,Chongqing Jiaotong Univeisity摘 要:The theory and approach of the surface modified of asphalt fire-retardant with silane coupling agent were introduced.The optimum silane dosage was determined,and the structure and properties......
