Results 91 to 100 of about 30,626 (294)

Effect of liquid CO2 phase change on pores and fractures in coal: An experimental study

Energy Science & Engineering
The evolution characteristics of pores and fractures in coal after liquid carbon dioxide (CO2) phase change are important factors that determine the permeability increase effect.
Zebiao Jiang, Shikang Gao, Hao Liu, Siliang Chen, Qiaoshun Mo, Feng He   +5 more
doaj   +1 more source

Nature of the metal-nonmetal transition in metal-ammonia solutions. I. Solvated electrons at low metal concentrations

, 2007
Using a theory of polarizable fluids, we extend a variational treatment of an excess electron to the many-electron case corresponding to finite metal concentrations in metal-ammonia solutions (MAS).
Chuev G. N., Chuev G. N., Chuev G. N., Dmitrenko I. M., Edwards P. P., Gennady N. Chuev, Goldhammer D. A., Hansen J. -P., Jason Crain, Lagowski J. J., Lundqvist S., Parr R. G., Pascal Quémerais, Pekar S. I., Quémerais P., Quémerais P., Quémerais P., Schindewolf U., Thomas G. A., Thompson J. C., Weyl Colloque   +20 more
core   +3 more sources

Mitigating Cathodic Challenges in Aqueous Zn–I2 Batteries via Dual‐Effect Function Strategy: Concurrent I3− Immobilization and Catalysis of I0/I− Redox Kinetics

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work employs a dual‐effect function strategy of Se to make an original composite material of selenium (Se) and activated carbon (AC) (designated as Se–AC), as a functional iodine‐adsorbed cathode host. Not only Se catalyzes the I0/I− conversion reaction, but also Se nanoparticles can adjust the charge distribution of AC to adsorb more I3−. Aqueous‐
Mudi Li, Wei Wang, YuMeng Liu, Qingyuan Wang, Tianqi Wang, Xin He, Zhanpeng Zhou, Haomiao Li, Min Zhou, Kangli Wang, Kai Jiang   +10 more
wiley   +1 more source

Influences of Eu₂O₃ Doping Amount and Sintering Temperature on Properties of Al₂O₃-based Microwave Ceramic Materials

Cailiao gongcheng, 2018
A kind of alumina ceramic was prepared by atmospheric pressure sintering under air atmosphere using MgO-CuO-TiO2-Eu2O3 as sintering additive. The effect of Eu2O3 doping amount and sintering temperature on the phase composition, microstructure as well as ...
KANG Jing-rui, DONG Gui-xia, LYU Yi-nan, LI Lei, HAN Wei-dan, ZHANG Xi   +5 more
doaj   +1 more source

Activating and Stabilizing Lattice Oxygen in Spinel NiCo2O4 through F, Mn Dual Doping for Rechargeable Zinc–Air Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study exploited the substitution doping of Mn and F in NiCo2O4 to activate and stabilize lattice oxygen, achieving a stable synergistic effect between AEM and LOM to enhance the intrinsic activity of the catalyst. The outstanding bifunctional properties enable its application as an anode catalyst in zinc–air batteries.
Jitong Li, Lifei Qu, Dongxu Yang, Haosheng Zhu, Hongwei Li, Yongcheng Li, Riming Hu, Peng Zhang, Benhua Xu   +8 more
wiley   +1 more source

The Dimensional Revolution of Phosphorus: From Allotropicity to Battery System Applications

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Phosphorus‐based materials are promising high‐capacity anodes classified by dimension (0D–3D) to systematically explore their properties and composite strategies. When combined with materials such as carbon to form heterostructures, the electrical conductivity and stability are effectively enhanced.
Shuhan Zhang, Zhiyuan Zhang, Ziying Pan, Kaixuan Hu, Yameng Yin, Yapan Wu, Caihong Yang, Lei Zheng, Dongsheng Li   +8 more
wiley   +1 more source

Insights to Industrial Electrocatalytic Sulfide Oxidation: Electrode Fabrication, System Engineering, and High‐Value Product Acquisition

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review summarizes recent advances in electrocatalytic sulfide oxidation (SOR), focusing on catalyst design strategies, reaction system engineering, and pathways for high‐value product generation. The roles of different reduced sulfur species (S2−, HS−, H2S) under various industrial conditions are highlighted, along with approaches to enhance ...
Zhongyuan Wang, Yinxi Han, Yufei Zhang, Jinghuan Chen, Jiade Wang   +4 more
wiley   +1 more source

Tailoring the Synthesis of Highly Tetragonal BaTiO₃ Nanoparticles by Regulating Aging Time and Calcination Temperature Using Sol–Gel Route

Crystals
High-quality BaTiO3 nanopowders were synthesized via a sol–gel method using butyl titanate and barium serving as precursors. This study systematically investigates the influence of calcination temperature (600–1000 °C) and gel aging time (2–10 h) on the ...
Sheng Liu, Yi-Hua Sun, Dong Zhang, Ye Yuan, Liao Lu, Xiao-Peng Jia, Hong-Wei Lin, Hao-Xiang Zhang   +7 more
doaj   +1 more source

Influence of nonmetallic inclusions on microbreaks formation in wheel steel and railway wheels [PDF]

Transport Problems, 2008
It is well known that formation of defects of many types during railway wheels service somehow or other is connected to nonmetallic inclusions in wheel steel. Microbreakes connected with nonmetallic inclusions have different origin.
Olexandr SHRAMKO, Mikael IS’KOV, Al'fred KOZLOVSK’YY, Yuriy PROIDAK, Svitlana GUBENKO   +4 more
doaj  

Nonmetallic Low-Temperature Normal State of K0.70Fe1.46Se1.85Te0.15

, 2014
The normal-state in-plane resistivity below the zero-field superconducting transition temperature $T_c$ and the upper critical field Hc2 were measured by suppressing superconductivity in pulsed magnetic fields for K0.70Fe1.46Se1.85Te0.15.
Kampert, Erik, Petrovic, C., Ryu, Hyejin, Uhlarz, M., Wang, Kefeng, Warren, J., Wosnitza, J.   +6 more
core   +2 more sources