A novel and environmentally friendly NASICON-type material: Efficient catalyst for condensation of formaldehyde and acetic acid to acrylic acid and methyl acrylate

K Zheng, Q Gao, C Li, G Zhang, Y Wu, Q Zhang… - Chemical Engineering …, 2022 - Elsevier
The development of environmentally friendly and efficient catalysts for the production of
essential chemicals has always been a desirable goal for technology in the chemical …

Promotional effect of Cs modification to NASICON material on aldol condensation of acetic acid and formaldehyde to acrylic acid

K Zheng, Q Gao, C Li, G Zhang, Q Zhang, J Zhang… - Fuel, 2023 - Elsevier
The production of high value-added oxygenated chemicals from methanol and its
derivatives is one of the important ways of coal conversion and clean and efficient utilization …

Highly efficient acrylic acid production from formaldehyde and acetic acid over the NASICON-type catalyst

Q Gao, K Zheng, C Li, J Wang, G Zhang… - Chemical …, 2023 - pubs.rsc.org
The condensation of formaldehyde and acetic acid to acrylic acid (AA) is considered as one
of the important routes for the clean and high value utilization of coal-based methanol …

Low-temperature synthesis, crystal structure, and ionic mobility in KTiOPO4-structured RbVOPO4

AS Samarin, AD Dembitskiy, AV Ivanov… - Materials Research …, 2024 - Elsevier
In this paper, we report on a new polymorph of rubidium vanadium oxophosphate (α-
RbVOPO 4) adopting a KTiOPO 4-type structure, which was stabilized through an ion …

NaZr 2 (PO 4) 3–a cubic langbeinite-type sodium-ion solid conductor

SN Marshenya, AG Scherbakov, AD Dembitskiy… - Dalton …, 2024 - pubs.rsc.org
The synthesis of langbeinite-type phosphates with small cations such as Li+ or Na+ via a
high-temperature solid-state reaction is a challenging task due to the predominant formation …

Expanding the family of mineral-like anhydrous alkali copper sulfate framework structures: new phases, topological analysis and evaluation of ion migration …

AS Borisov, OI Siidra, VM Kovrugin… - Journal of Applied …, 2021 - journals.iucr.org
Two novel compounds, K2Cu3 (SO4) 4 and KNaCu (SO4) 2, were synthesized. The crystal
structure of K2Cu3 (SO4) 4 is based on a [Cu3 (SO4) 4] 2− framework with relatively simple …

Influence of tin substitution on negative thermal expansion of K2Zr2-xSnxP2SiO12 (x= 0-2) phosphosilicates ceramics

D Balaji, TR Mandlimath, SP Kumar - Ceramics International, 2020 - Elsevier
In this research work, compounds of the chemical formula K 2 Zr 2-x Sn x P 2 SiO 12 (x= 0,
0.5, 1, 1.5, 2) were synthesized by solution method and characterized by powder X-ray …

Langbeinite-Group Minerals and Vanthoffite from Fumarole Exhalations of the Tolbachik Volcano (Kamchatka)

MO Bulakh, IV Pekov, NN Koshlyakova, SN Britvin… - Geology of Ore …, 2023 - Springer
In this paper, we provide characteristics of sulfates of exhalation origin—langbeinite K2Mg2
(SO4) 3, two modifications of calciolangbeinite K2Ca2 (SO4) 3 (new data), and vanthoffite …

Investigation into the ability of langbeinite-type K2M2 (SO4) 3 (M= Mn, Fe, Co and Ni) materials to accommodate Na: The importance of the electronegativity of the …

LL Driscoll, EH Driscoll, PR Slater - Journal of Solid State Chemistry, 2020 - Elsevier
In this work we report a study of the langbeinite-type K 2-x Na x M 2 (SO 4) 3 materials
(M​=​ Mn, Fe, Co and Ni) in order to evaluate the level of Na incorporation possible. The …

[PDF][PDF] The crystal chemistry and properties of fumarolic sulphate minerals and their synthetic analogues

BA Sergeevic - 2024 - dspace.spbu.ru
Данная работа представляет собой защищенную автором диссертацию на соискание
ученой степени кандидата геолого-минералогических наук. Ученая степень …