Article
Optics
S. Galkin, I. Rybalka, L. Sidelnikova, A. Voloshinovskii, H. Kraus, V. Mykhaylyk
Summary: The study reports on the low-temperature characterization of ZnSe doped with Al or Te, showing a significant improvement in scintillation characteristics below 100 K. The scintillation light yield of the crystals increases by a factor about two, and the decay time constant decreases to 0.3-0.4 μs, enhancing the potential for ZnSe-based crystals in cryogenic scintillation detectors of ionizing radiation.
JOURNAL OF LUMINESCENCE
(2021)
Article
Materials Science, Multidisciplinary
Chonglong Fu, Jianjian Li, Juju Bai, Qiantao Lei, Renduo Liu, Jun Lin
Summary: The temperature dependence of helium bubble evolution in 316L stainless steel fabricated by selective laser melting was studied. The number density of helium bubbles decreased with increasing temperature, while the bubble diameter increased. Material swelling caused by helium bubbles showed no significant change below 800 degrees C, but sharply increased at 900 degrees C. Heterogeneous nucleation of bubbles occurred at high temperatures, and helium bubbles grew rapidly at the oxide-matrix interface. Different intrinsic structures affected the bubble evolution process. The activation energy of helium bubbles elucidated the most probable helium bubble evolution mechanisms at different temperatures.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Engineering, Environmental
David Cantador Fernandez, David Suescum Morales, Jose Ramon Jimenez, Jose Maria Fernandez-Rodriguez
Summary: This study investigates the maximum CO2-capture capacities of two families of organohydrotalcites and finds that the calcined Mg-Al hydrotalcite with a tetradecanedioate anion has the highest CO2-adsorption capacity. The study also characterizes the surfaces and structures of the samples and models the CO2 adsorption process using different equations. These findings are significant for the development of new CO2 capture materials and the mitigation of greenhouse gas emissions.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Physics, Multidisciplinary
S. Sheludiakov, D. M. Lee, V. V. Khmelenko, J. Jarvinen, J. Ahokas, S. Vasiliev
Summary: This study reports a direct measurement of quantum diffusion of hydrogen atoms in solid molecular hydrogen films at 0.7 K, finding that phonon injection significantly enhances the diffusion rate of hydrogen atoms. The results offer the first measurement of the pure spatial diffusion rate for hydrogen atoms in solid hydrogen-2.
PHYSICAL REVIEW LETTERS
(2021)
Article
Energy & Fuels
Praphulla Rao, Ravendra Gundlapalli, Sreenivas Jayanti
Summary: Recent literature has shown that the performance of vanadium redox flow batteries deteriorates at low temperature due to increased resistance for reaction kinetics and species transport. This study investigates the impact of low temperature operation on hydrodynamic parameters, such as electrolyte viscosity and electrode permeability, which can affect parasitic losses associated with electrolyte circulation. The results indicate that both viscosity and permeability increase as the operating temperature decreases, leading to substantial losses in parasitic power consumption. Careful balancing of discharge energy density, round-trip energy efficiency, and cell pressure drop is necessary for optimal performance at low temperatures.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Multidisciplinary
Sun Geun Yoon, Kelsey Anne Cavallaro, Byoung Joon Park, Hyunwoo Yook, Jeong Woo Han, Matthew T. McDowell
Summary: Operation of lithium-based batteries at low temperatures is challenging due to transport limitations and sluggish Li+ kinetics at the electrode interface. A ternary solvent electrolyte based on ether/hydrofluoroether and fluoroethylene carbonate (FEC) has been developed to improve Li cycling at low temperatures. This study advances the understanding of the influence of Li+ solvation structure, SEI chemistry, and interfacial Li+ kinetics on Li electrochemistry at low temperatures, providing new design considerations for creating effective low-temperature electrolyte systems.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Multidisciplinary Sciences
Marta Sosnicka, Volker Lueders
Summary: The study investigates low-temperature phase transitions observed in natural CH4-H2S-CO2-N-2-H2O fluid inclusions, contributing to improved understanding of phase equilibria in the C-O-H-N-S system essential for modeling geological evolution of hydrocarbon and mineral systems. The findings also offer insights for future research on extraterrestrial H2S-rich planetary systems in low temperature environments.
NATURE COMMUNICATIONS
(2021)
Article
Engineering, Chemical
Liangliang Fu, Haolong Bai, Dingrong Bai, Guangwen Xu
Summary: This research focuses on understanding the hydrodynamics of gas-solid fluidization at ultra-high temperatures and aims to aid the development of ultra-high temperature fluidized bed reactors. The results demonstrate that stable fluidization at ultra-high temperatures can be achieved by using large and broad size distribution particles and operating at sufficiently high gas velocities. The study also discusses the bed pressure drop fluctuation, minimum fluidization velocity, and pressure drop offset at ultra-high temperatures.
Article
Engineering, Electrical & Electronic
Vinod Belwanshi, Sebin Philip, Anita Topkar
Summary: This study designed and fabricated three types of piezoresistive pressure sensors using different process technologies. The sensors were tested under elevated temperature and pressure conditions, and it was found that the sensors with oxide isolated polysilicon piezoresistors demonstrated the best performance.
IEEE SENSORS JOURNAL
(2022)
Article
Biochemistry & Molecular Biology
Elham Abbasi-Garravand, Catherine N. Mulligan
Summary: The impact of temperature on the power density and fouling in a PRO system using industrial semi-permeable membranes was investigated, showing that low temperature electricity generation using PRO processes is feasible.
Article
Engineering, Environmental
Adrian D. Metzgen, Andreas Dahmke, Markus Ebert
Summary: Increasing groundwater temperatures can accelerate anaerobic corrosion, affecting groundwater remediation techniques using zero-valent iron. Different ZVIs show varying corrosion rates at different temperatures, with surface precipitates playing a role in passivation and affecting long-term corrosion rates.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Polymer Science
Liang Cao, Lisheng Zhong, Yinge Li, Jinghui Gao, George Chen
Summary: The study revealed that the increase in crosslinking degree led to enhanced DC breakdown strength but decreased crystallinity, reduced elastic modulus, and lower loss tangent peak temperature for XLPE-PS composites.
Article
Chemistry, Physical
Wenhao Ren, Yafang Zhang, Ruixin Lv, Shiyuan Guo, Wenjia Wu, Yong Liu, Jingtao Wang
Summary: Solid-state polymer electrolytes have good processability and flexibility but suffer from low ionic conductivity at low temperatures. In this study, a quasi-solid polymer electrolyte was prepared by in-situ ring-opening polymerization and showed high ionic conduction ability at low temperatures. Addition of a plasticizer improved the chain mobility and enhanced the dissociation of lithium salt, resulting in a remarkable increase in ionic conductivity. The quasi-solid polymer electrolyte exhibited excellent performance in Li/QSPE/Li cells and LiFePO4/Li cells, demonstrating its potential as a promising electrolyte for low-temperature applications.
JOURNAL OF POWER SOURCES
(2022)
Article
Instruments & Instrumentation
Dmitry V. Petrov
Summary: This paper discusses a technique for deriving carbon monoxide intensity in Raman spectra by fitting nitrogen spectrum at various temperatures. It is found that ignoring the Herman-Wallis factors in the fitting procedure leads to an additional measurement error, especially at high temperatures.
APPLIED SPECTROSCOPY
(2021)
Review
Chemistry, Physical
Rahul Kumar, Irina Hussainova, Ramin Rahmani, Maksim Antonov
Summary: Understanding the complex nature of wear behavior of materials at high temperatures is crucial for various engineering applications. The use of solid lubricants to reduce wear has become an important method, especially due to the degradation of traditional liquid lubricants at high temperatures. Additionally, the development of solid-lubricating materials has enabled the creation of 'self-lubricating' materials, potentially eliminating the need for conventional liquid-based lubricants.
Article
Physics, Applied
V. A. Zhuchkov, A. A. Lisunov, V. A. Maidanov, A. S. Neoneta, V. Yu Rubanskyi, S. P. Rubets, E. Ya Rudavskii, S. N. Smirnov
LOW TEMPERATURE PHYSICS
(2015)
Article
Materials Science, Multidisciplinary
A. Lisunov, V. Maidanov, V. Rubanskyi, S. Rubets, E. Rudavskii, S. Smirnov, V. Zhuchkov
Article
Physics, Applied
A. A. Lisunov, V. A. Maidanov, V. Yu. Rubanskyi, S. P. Rubets, E. Ya. Rudavskii, S. N. Smirnov
LOW TEMPERATURE PHYSICS
(2016)
Article
Physics, Applied
A. V. Smorodin, A. S. Rybalko, D. Konstantinov
JOURNAL OF LOW TEMPERATURE PHYSICS
(2017)
Article
Physics, Applied
A. S. Rybalko, T. V. Chagovets, A. M. Korolev
LOW TEMPERATURE PHYSICS
(2017)
Article
Physics, Applied
I. A. Gritsenko, V. A. Maidanov, S. P. Rubets, E. Ya. Rudavsky, A. S. Rybalko
LOW TEMPERATURE PHYSICS
(2018)
Article
Physics, Applied
A. Lisunov, V. Maidanov, N. Mikhin, A. Neoneta, V. Rubanskyi, S. Rubets, E. Rudavskii, V. Zhuchkov
JOURNAL OF LOW TEMPERATURE PHYSICS
(2014)
Article
Physics, Applied
Yu. M. Poluektov, A. S. Rybalko
LOW TEMPERATURE PHYSICS
(2013)
Article
Physics, Condensed Matter
T. N. Antsygina, A. A. Lisunov, V. A. Maidanov, V. Y. Rubanskyi, S. P. Rubets, E. Ya. Rudavskii, K. A. Chishko
PHYSICA B-CONDENSED MATTER
(2011)
Article
Materials Science, Multidisciplinary
A. A. Lisunov, V. A. Maidanov, V. Yu. Rubanskyi, S. P. Rubets, E. Ya. Rudavskii, A. S. Rybalko, V. A. Tikhiy
Article
Physics, Applied
K. A. Chishko, A. S. Rybalko
JOURNAL OF LOW TEMPERATURE PHYSICS
(2019)
Article
Physics, Applied
K. A. Chishko, A. S. Rybalko
LOW TEMPERATURE PHYSICS
(2019)
Article
Physics, Applied
V. D. Natsik, A. S. Rybalko
LOW TEMPERATURE PHYSICS
(2020)