High temperature solid state transformations in Jammu bauxite

1992 ◽  
Vol 38 (11) ◽  
pp. 2455-2458
Author(s):  
S. K. Mehta ◽  
A. Kalsotra
Keyword(s):  
High Temperature ◽  
Solid State

Solid-state reaction of niobium with diamond carbon at high pressure and high temperature to form superconducting composite

2021 ◽  
Vol 31 (3) ◽  
pp. 415-418
Author(s):  
Vladimir Yu. Osipov ◽  
Fedor M. Shakhov ◽  
Nikolai M. Romanov ◽  
Kazuyuki Takai
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Solid State ◽  
Solid State Reaction

A safeguarding and high temperature tolerant organogel electrolyte for flexible solid-state supercapacitors

2021 ◽  
Vol 505 ◽  
pp. 230083
Author(s):  
Yuxuan Wu ◽  
Sheng Wang ◽  
Min Sang ◽  
Quan Shu ◽  
Junshuo Zhang ◽  
...  
Keyword(s):  
High Temperature ◽  
Solid State

scholarly journals HKUST-1@IL-Li Solid-state Electrolyte with 3D Ionic Channels and Enhanced Fast Li+ Transport for Lithium Metal Batteries at High Temperature

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 736
Author(s):  
Man Li ◽  
Tao Chen ◽  
Seunghyun Song ◽  
Yang Li ◽  
Joonho Bae
Keyword(s):  
High Temperature ◽  
Solid State ◽  
Solid Electrolyte ◽  
Metal Organic Framework ◽  
Ionic Channels ◽  
Transference Numbers ◽  
Lithium Metal ◽  
Lithium Metal Batteries ◽  
Metal Organic ◽  
Organic Framework

The challenge of safety problems in lithium batteries caused by conventional electrolytes at high temperatures is addressed in this study. A novel solid electrolyte (HKUST-1@IL-Li) was fabricated by immobilizing ionic liquid ([EMIM][TFSI]) in the nanopores of a HKUST-1 metal–organic framework. 3D angstrom-level ionic channels of the metal–organic framework (MOF) host were used to restrict electrolyte anions and acted as “highways” for fast Li+ transport. In addition, lower interfacial resistance between HKUST-1@IL-Li and electrodes was achieved by a wetted contact through open tunnels at the atomic scale. Excellent high thermal stability up to 300 °C and electrochemical properties are observed, including ionic conductivities and Li+ transference numbers of 0.68 × 10-4 S·cm-1 and 0.46, respectively, at 25 °C, and 6.85 × 10-4 S·cm-1 and 0.68, respectively, at 100 °C. A stable Li metal plating/stripping process was observed at 100 °C, suggesting an effectively suppressed growth of Li dendrites. The as-fabricated LiFePO4/HKUST-1@IL-Li/Li solid-state battery exhibits remarkable performance at high temperature with an initial discharge capacity of 144 mAh g-1 at 0.5 C and a high capacity retention of 92% after 100 cycles. Thus, the solid electrolyte in this study demonstrates promising applicability in lithium metal batteries with high performance under extreme thermal environmental conditions.

Photoluminescence Properties of Ca3Si2O7: Pr3+ Orange-Red Phosphors Prepared by High-Temperature Solid-State Method

2018 ◽  
Vol 73 (6) ◽  
pp. 555-558 ◽  
Author(s):  
Zhi-Qing Peng ◽  
Rong Chen ◽  
Wen-Lin Feng
Keyword(s):  
Crystal Structure ◽  
High Temperature ◽  
Solid State ◽  
Solid State Method ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Red Phosphors ◽  
Typical Sample ◽  
State Method ◽  
Xrd Patterns

AbstractNovel luminescent materials Ca3-xSi2O7: xPr3+ were successfully prepared by the high-temperature solid-state method. The crystal structure, morphology, and optical spectrum were characterised by X-ray diffraction (XRD), scanning electron microscopy (SEM), and spectroscopy, respectively. The XRD patterns of the samples indicate that the crystal structure is monoclinic symmetry. The SEM shows that the selected sample has good crystallinity although its appearance is irregular and scalelike. The peak of the excitation spectrum of the sample is located at around 449 nm, corresponding to 3H4→3P2 transition of Pr3+. The peak of the emission spectrum of the sample is situated at around 612 nm which is attributed to 3P0→3H6 transition of Pr3+, and the colour is orange-red. The optimum concentration for Pr3+ replaced Ca2+ sites in Ca3Si2O7: Pr3+ is 0.75 mol%. The lifetime (8.48 μs) of a typical sample (Ca2.9925Pr0.0075)Si2O7 is obtained. It reveals that orange-red phosphors Ca3-xSi2O7: xPr3+ possess remarkable optical properties and can be used in white light emitting devices.

scholarly journals Solid-state microcellular high temperature vulcanized (HTV) silicone rubber foam with carbon dioxide

2017 ◽  
Vol 134 (20) ◽  
Author(s):  
Qian Yang ◽  
Haitao Yu ◽  
Lixian Song ◽  
Yajie Lei ◽  
Fengshun Zhang ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
High Temperature ◽  
Solid State ◽  
Silicone Rubber

Removal of anionic azo dye from water with activated graphene oxide: kinetic, equilibrium and thermodynamic modeling

RSC Advances ◽  
2016 ◽  
Vol 6 (46) ◽  
pp. 39762-39773 ◽  
Author(s):  
Yongfu Guo ◽  
Juan Deng ◽  
Junyan Zhu ◽  
Chao Zhou ◽  
Caiyun Zhou ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
High Temperature ◽  
Solid State ◽  
Adsorption Capacity ◽  
Thermodynamic Modeling ◽  
Azo Dye ◽  
Anionic Dye ◽  
Kinetic Equilibrium

In order to improve the BET value and adsorption capacity of graphene oxide (GO), activated GO (GOKOH) was successfully prepared by high temperature solid state activation with KOH, and was used to remove the anionic dye orange IV from water.

Supported High Temperature Protonic Films Produced by Solid State Reaction

ChemInform ◽  
2007 ◽  
Vol 38 (38) ◽  
Author(s):  
Wilhelm A. Meulenberg ◽  
Jose M. Serra
Keyword(s):  
High Temperature ◽  
Solid State ◽  
Solid State Reaction

Growth of lithium iron silicates nanoplates with high energy facets via polymorphs transition for ehanced lithium-ion extraction/insertion reaction

2021 ◽  
pp. 2151015
Author(s):  
Anran Duan ◽  
Huali Qiao ◽  
Miao He ◽  
Ting Wang ◽  
Dan Wang ◽  
...  
Keyword(s):  
High Temperature ◽  
Solid State ◽  
Thermal Instability ◽  
High Current Density ◽  
Lithium Ion ◽  
High Energy ◽  
Insertion Reaction ◽  
Ion Extraction ◽  
State Growth ◽  
Temperature Liquid

The anisotropic functionalities of nanostructured silicates are highly attractive for various applications, whereas the silicates’ nanostructure heavily relies on the reactions in low temperature liquid conditions. Due to the stubborn [SiO4][Formula: see text] lattice foundation and most surfactants’ thermal instability, it is extremely difficult to manipulate the nanostructure and preserve high energy lattice facets in the high temperature solid state growth of silicates. In this report, the polymorphs transition of Li2FeSiO4 is found to open a precious window for adsorbate–crystal interactions. By adsorbing on the intermediates of phase transition, Ethlyene glycol effectively promotes the solid-state growth of Li2FeSiO4 nanoplates at high temperature, of which the high energy (020) facet becomes the dominant and exhibits high activity for fast charge transportation. The obtained Li2FeSiO4 nanoplates show greatly enhanced reactivity for Li[Formula: see text] ions’ extraction/insertion, and exhibit excellent capacities at high current density (1–10 C) as the cathode material for lithium-ion batteries.

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