Results 81 to 90 of about 54,610 (362)

The highly efficient simultaneous removal of Pb2+ and methylene blue induced by the release of endogenous active sites of montmorillonite

Water Science and Technology, 2022
The inherent periodic structure of montmorillonite limits the adsorption capacity of its endogenous active units such as Si-O tetrahedron and Al-O octahedron for pollutants.
Jingde Luan, Chen Zhao, Qian Zhai, Wengang Liu, Xin Ke, Xiaoyang Liu   +5 more
doaj   +1 more source

Spin orientations of the spin-half Ir4+ ions in Sr3NiIrO6, Sr2IrO4 and Na2IrO3: Density functional, perturbation theory and Madelung potential analyses

, 2016
The spins of the low-spin Ir4+ (S = 1/2, d5) ions at the octahedral sites of the oxides Sr3NiIrO6, Sr2IrO4 and Na2IrO3 exhibit preferred orientations with respect to their IrO6 octahedra.
Gordon, Elijah E., Köhler, Jürgen, Whangbo, Myung-Hwan, Xiang, Hongjun   +3 more
core   +1 more source

Tailoring the Microstructure of B‐Cation Octahedra in Halide Double Perovskites for Efficient Selective CO2‐to‐CO Photoreduction

Advanced Functional Materials, EarlyView.
The thermodynamic obstacle of CO2‐to‐CO conversion over metal halide perovskite photocatalysts is addressed by modulating the local electronic structure. A 13‐fold improvement in selective CO2 photoreduction to CO is achieved, with ≈100% selectivity.
Chunhua Wang, Wenjing Shen, Zhirun Xie, Yannan Wang, Yang Ding, Ning Han, Michael K.H. Leung, Biao Liu, Zhi Zhu, Yun Hau Ng   +9 more
wiley   +1 more source

Geometric shaping of chosen two-layered bar domes

Budownictwo i Architektura, 2014
The covering of large areas, such as sport areas, trade halls, warehouses and others, may be designed by using forms of spherical domes. Such constructions, especially bars ones, have undoubtedly big superiority in comparison to other structures, thanks ...
Dominika Pilarska
doaj   +1 more source

Enhancing CoFe Catalysts with V2CTX MXene‐Derived Materials for Anion Exchange Membrane Electrolyzers

Advanced Functional Materials, EarlyView.
MXene dervied CoFe composites show increased initial Oxygen Evolution Reaction (OER) activity compared to the pure CoFe and MXene in an Anion Exchange Membrane device. Vanadium vacancies in the MXene plays a role in increased OER activity and hinders Fe leaching in the AEM device over using the pure V2C MXene as a support material for the CoFe ...
Can Kaplan, Karuppasamy Dharmaraj, Thorsten Schultz, Leiqiang Qin, Ningjun Chen, Danielle A. Douglas‐Henry, Bastian Schmiedecke, Merve Buldu‐Akturk, Axel Zuber, Iris Dorbandt, Maximilian Reinhardt, Yael Rodriguez‐Ayllon, Yan Lu, Valeria Nicolosi, Norbert Koch, Johanna Rosen, Michelle P. Browne   +16 more
wiley   +1 more source

Finite-size scaling and conformal anomaly of the Ising model in curved space

, 1999
We study the finite-size scaling of the free energy of the Ising model on lattices with the topology of the tetrahedron and the octahedron. Our construction allows to perform changes in the length scale of the model without altering the distribution of ...
A. A. Belavin, B. M. McCoy, B. Nienhuis, E. Granato, E. W. Montroll, F. C. Alcaraz, F. C. Alcaraz, F. Woynarovich, H. W. J. Blöte, H. W. J. Blöte, H. W. J. Blöte, H. W. J. Blöte, I. Affleck, J. González, J. González, J. L. Cardy, J. L. Cardy, J. L. Cardy, J. Oitmaa, L. V. Avdeev, M. N. Barber, M. P. Nightingale, M. T. Batchelor, O. Diego, P.-Y. Lai, R. M. F. Houtappel, V. Privman, V. Privman, Y. M. M. Knops   +28 more
core   +1 more source

Flexible Optical Fiber Stress/Temperature Dual‐Mode Sensing Based on CaZnOS:Nd,Er

Advanced Functional Materials, EarlyView.
Temperature and stress sensing based on flexible optical fibers may be the key to future artificial intelligence's perception of the world, here an optical fiber sensor capable of realizing such dual mode sensing is preliminary confirmed based on CaZnOS:Nd3+,Er3+.
Pan Zheng, Yao Xiao, Puxian Xiong, Sijie Su, Anping Yang, Xuesong Wang, Shengbin Xu, Peishan Shao, Zhiyao Zhou, Sheng Wu, Enhai Song, Jiulin Gan, Dongdan Chen   +12 more
wiley   +1 more source

Conley: Computing connection matrices in Maple

, 2007
In this work we announce the Maple package conley to compute connection and C-connection matrices. conley is based on our abstract homological algebra package homalg.
Barakat, Conley, Daniel Robertz, Franzosa, Franzosa, Franzosa, Gelfand, Maier-Paape, Mischaikow, Mischaikow, Mohamed Barakat   +10 more
core   +3 more sources

Investigation of the Effects of Strain and Electric Field on the Spin‐State Energetics of Co‐Doped BaTiO3 and PbTiO3

Advanced Functional Materials, EarlyView.
Ab initio calculations using the r2SCAN functional show that biaxial strain does not alter the high spin preference of cobalt‐doped BaTiO3 and PbTiO3; a small compressive uniaxial strain however results in an equally favorable low spin state for BaTiO3 and thus bistable magnetism.
Oliver J. Conquest, Steefan Contractor, Leigh Weston, Catherine Stampfl   +3 more
wiley   +1 more source

Theory and experiment of the ESR of Co$^{2+}$ in Zn$_2$ % (OH)PO$_4$ and Mg$_2$(OH)AsO$_4$

, 2001
Experiments of Electron Spin Resonance (ESR) were performed on Co$% ^{2+}$ substituting Zn$^{2+}$ or Mg$^{2+}$ in powder samples of Zn$_2$(OH)PO$_4$ and Mg$_2$(OH)AsO$_4$.
G.E. Barberis, Goñi, Harrison, J.L. Mesa, J.M. Rojo, Keller, L. Lezama, M.C. dos Santos, M.E. Foglio, Stewart, T. Rojo   +10 more
core   +1 more source