Search

Your search keyword '"Shang, Hongwei"' showing total 31 results
Start Over Author "Shang, Hongwei" Publisher elsevier bv
31 results on '"Shang, Hongwei"'

3. Adult hypertensive rats are more prone to gut microflora perturbation and fibrosis in response to moderate restraint stress

Author

Wang, Tiantian, primary, Gao, Han, additional, He, Chengwei, additional, Gao, Lei, additional, Wang, Boya, additional, Hua, Rongxuan, additional, Du, Yixuan, additional, Liang, Chen, additional, Xin, Shuzi, additional, Shang, Hongwei, additional, Wang, Ying, additional, Wang, Wen, additional, and Xu, Jingdong, additional

Published
2022
Full Text
View/download PDF

7. Effects of adding over-stoichiometrical Ti and substituting Fe with Mn partly on structure and hydrogen storage performances of TiFe alloy

Author

Shihai Guo, Shang Hongwei, Dongliang Zhao, Yan Qi, Li Yaqin, and Yanghuan Zhang

Subjects
Materials science, 060102 archaeology, Renewable Energy, Sustainability and the Environment, Scanning electron microscope, 020209 energy, Alloy, 06 humanities and the arts, 02 engineering and technology, engineering.material, Nanocrystalline material, Grain size, Hydrogen storage, Chemical engineering, Transmission electron microscopy, Phase (matter), 0202 electrical engineering, electronic engineering, information engineering, engineering, 0601 history and archaeology, Dehydrogenation
Abstract

In this paper, over-stoichiometrical Ti was added into the TiFe alloy and Fe was further substituted partly by Mn for improving the hydrogen storage performances of the alloys. X-ray diffraction and scanning electron microscope results revealed that the as-cast TiFe and Ti1.1Fe alloys contain TiFe, TiFe2 and Ti1.3Fe phases. Adding over-stoichiometrical Ti leads to the reduction of TiFe2 and Ti1.3Fe phases to some extent, and TiFe phase becomes the main phase for the alloy. Further substituting Fe with Mn partly causes TiFe2 phase to reduce significantly and Ti1.3Fe phase to disappear completely. In addition, some new generated β-Ti phases also were observed in the backscatter electron images for the as-cast Ti1.1Fe0.8Mn0.2 alloy, which provides the initial driving force to the pulverization of the alloy powders in the hydrogen absorption process. Field emission transmission electron microscopy results show that all the alloys are nanocrystalline structure. Further substituting Fe with Mn partly makes the average grain size (D) decrease. It is also beneficial to the reduction of the gaseous activation condition and the improvement of the hydrogen storage capacity and kinetics, while results in a slight increase of the value of the dehydrogenation enthalpy (ΔHdes).

Published
2019
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results