Results 21 to 30 of about 2,161,180 (295)

Anisotropy oxidation behavior and mechanism of textured Ti3(SiAl)C2 ceramic

npj Materials Degradation, 2023
Adjusting the grain growth orientation may be a feasible way to improve the oxidation resistance. In this work, textured Ti3(SiAl)C2 ceramic was successfully fabricated via the spark plasma sintering technique.
Guangqi He, Xintao Zhang, Wenting Wang, Ke Ma, Jun Zuo, Meishuan Li, Changsheng Liu, Jingjun Xu   +7 more
doaj   +1 more source

Metal-insulator transition in the In/Si(111) surface

, 2005
The metal-insulator transition observed in the In/Si(111)-4x1 reconstruction is studied by means of ab initio calculations of a simplified model of the surface.
A. Ayuela, Abukawa, Ahn, Bunk, Cho, Cho, D. Sánchez-Portal, Fleischer, González, Kraft, Kumpf, Kurata, Lee, Miwa, Mulliken, Nakamura, Park, Perdew, S. Riikonen, Saranin, Soler, Troullier, Yeom   +22 more
core   +1 more source

Circuit theory for crossed Andreev reflection and nonlocal conductance

, 2007
Nonlocal currents, in devices where two normal metal terminals are contacted to a superconductor, are determined using the circuit theory of mesoscopic superconductivity.
A. Brataas, A. Brinkman, D. Beckmann, D. Sanchez, G. Deutsher, G. Falci, J.M. Byers, J.P. Morten, J.P. Morten, M.S. Kalenkov, P. Cadden-Zimansky, R. Mélin, S. Russo, T. Yamashita, W. Belzig, W. Belzig, W. Belzig, Y.V. Nazarov   +17 more
core   +1 more source

Conductive porous vanadium nitride/graphene composite as chemical anchor of polysulfides for lithium-sulfur batteries

Nature Communications, 2017
Lithium sulfur batteries are a promising next generation storage technology. Their performance, however, is subject to the parasitic shuttle effect. Here the authors report a cathode material comprising porous vanadium nitride nanoribbon and graphene to ...
Zhenhua Sun, Jingqi Zhang, Lichang Yin, Guangjian Hu, Ruopian Fang, Hui-Ming Cheng, Feng Li   +6 more
doaj   +1 more source

Gradient tungsten-doped Bi3TiNbO9 ferroelectric photocatalysts with additional built-in electric field for efficient overall water splitting

Nature Communications, 2023
Bi3TiNbO9, a layered ferroelectric photocatalyst, exhibits great potential for overall water splitting through efficient intralayer separation of photogenerated carriers motivated by a depolarization field along the in-plane a-axis.
Jie Huang, Yuyang Kang, Jianan Liu, Tingting Yao, Jianhang Qiu, Peipei Du, Biaohong Huang, Weijin Hu, Yan Liang, Tengfeng Xie, Chunlin Chen, Li-Chang Yin, Lianzhou Wang, Hui-Ming Cheng, Gang Liu   +14 more
doaj   +1 more source

Barrier formation at metal/organic interfaces: dipole formation and the Charge Neutrality Level

, 2004
The barrier formation for metal/organic semiconductor interfaces is analyzed within the Induced Density of Interface States (IDIS) model. Using weak chemisorption theory, we calculate the induced density of states in the organic energy gap and show that ...
A Kahn, F Flores, Fenter, Forrest, H Vázquez, Hill, Hill, Hill, Ishii, J Ortega, Lewis, Mönch, Narioka, Oszwaldowski, Pou, R Oszwaldowski, R Pérez, Schen, Spicer, Tejedor, Tsiper   +20 more
core   +2 more sources

Microstructure and mechanical properties of h-BN/Yb4Si2O7N2 composites

Journal of Advanced Ceramics, 2018
A series of h-BN based composites with Yb4Si2O7N2 as a secondary phase were successfully synthesized by an in situ reaction hot pressing method. It was found that the relative density and room-temperature mechanical properties monotonically increased ...
Juanjuan Chen, Jixin Chen, Hao Zhang, Minmin Hu, Meishuan Li   +4 more
doaj   +1 more source

Electronic properties and applications of MXenes: a theoretical review

, 2017
Recent chemical exfoliation of layered MAX phase compounds to novel two-dimensional transition metal carbides and nitrides, so called MXenes, has brought new opportunity to materials science and technology.
Arai, Masao, Khazaei, Mohammad, Ranjbar, Ahmad, Sasaki, Taizo, Yunoki, Seiji   +4 more
core   +1 more source

Active oxygen species mediate the iron-promoting electrocatalysis of oxygen evolution reaction on metal oxyhydroxides

Nature Communications, 2023
Iron is an extraordinary promoter to impose nickel/cobalt (hydr)oxides as the most active oxygen evolution reaction catalysts, whereas the synergistic effect is actively debated. Here, we unveil that active oxygen species mediate a strong electrochemical
Qu Jiang, Sihong Wang, Chaoran Zhang, Ziyang Sheng, Haoyue Zhang, Ruohan Feng, Yuanman Ni, Xiaoan Tang, Yichuan Gu, Xinhong Zhou, Seunghwa Lee, Di Zhang, Fang Song   +12 more
doaj   +1 more source

Evaluation of properties of cast metal foams with irregular inner structure [PDF]

, 2018
Internal structure of metal foams is one of the most important factors that determine its mechanical properties. There exists a number of methods for studying the nature of the inner porous structure.
Hendrych, Jakub, Kroupová, Ivana, Lichý, Petr, Ličev, Lačezar, Souček, Kamil   +4 more
core   +1 more source