Primer, Zinc Molybdate

2019 ◽  
Author(s):  
Keyword(s):  
Zinc Molybdate

scholarly journals Solid-Phase “Self-Hydrolysis” of [Zn(NH3)4MoO4@2H2O] Involving Enclathrated Water—An Easy Route to a Layered Basic Ammonium Zinc Molybdate Coordination Polymer

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 4022
Author(s):  
Kende Attila Béres ◽  
István E. Sajó ◽  
György Lendvay ◽  
László Trif ◽  
Vladimir M. Petruševski ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Solid Phase ◽  
Water Molecules ◽  
Temperature Dependent ◽  
Dynamic Interactions ◽  
Ammonia Release ◽  
Successive Substitution ◽  
Red Dye ◽  
Hydrolysis Of ◽  
Zinc Molybdate

An aerial humidity-induced solid-phase hydrolytic transformation of the [Zn(NH3)4]MoO4@2H2O (compound 1@2H2O) with the formation of [(NH4)xH(1−x)Zn(OH)(MoO4)]n (x = 0.92–0.94) coordination polymer (formally NH4Zn(OH)MoO4, compound 2) is described. Based on the isostructural relationship, the powder XRD indicates that the crystal lattice of compound 1@2H2O contains a hydrogen-bonded network of tetraamminezinc (2+) and molybdate (2−) ions, and there are cavities (O4N4(μ-H12) cube) occupied by the two water molecules, which stabilize the crystal structure. Several observations indicate that the water molecules have no fixed positions in the lattice voids; instead, the cavity provides a neighborhood similar to those in clathrates. The @ symbol in the notation is intended to emphasize that the H2O in this compound is enclathrated rather than being water of crystallization. Yet, signs of temperature-dependent dynamic interactions with the wall of the cages can be detected, and 1@2H2O easily releases its water content even on standing and yields compound 2. Surprisingly, hydrolysis products of 1 were observed even in the absence of aerial humidity, which suggests a unique solid-phase quasi-intramolecular hydrolysis. A mechanism involving successive substitution of the ammonia ligands by water molecules and ammonia release is proposed. An ESR study of the Cu-doped compound 2 (2#dotCu) showed that this complex consists of two different Cu2+(Zn2+) environments in the polymeric structure. Thermal decomposition of compounds 1 and 2 results in ZnMoO4 with similar specific surface area and morphology. The ZnMoO4 samples prepared from compounds 1 and 2 and compound 2 in itself are active photocatalysts in the degradation of Congo Red dye. IR, Raman, and UV studies on compounds 1@2H2O and 2 are discussed in detail.

Growth inhibition ofEscherichia coliby zinc molybdate with different crystalline structures

2016 ◽  
Vol 213 (6) ◽  
pp. 1471-1478 ◽  
Author(s):  
Cezarina Cela Mardare ◽  
Dajana Tanasic ◽  
Adriana Rathner ◽  
Norbert Müller ◽  
Achim Walter Hassel
Keyword(s):  
Growth Inhibition ◽  
Crystalline Structures ◽  
Zinc Molybdate

Micromechanical hardness study and the effect of reverse indentation size on heat-treated silver doped zinc-molybdate glass nanocomposites

2019 ◽  
Vol 770 ◽  
pp. 136-142 ◽  
Author(s):  
Sanjib Bhattacharya ◽  
Ranadip Kundu ◽  
Koyel Bhattacharya ◽  
Asmita Poddar ◽  
Debasish Roy
Keyword(s):  
Indentation Size ◽  
Heat Treated ◽  
Zinc Molybdate

scholarly journals In situ QXAS study of sulfidation/oxidative regeneration reactions of zinc molybdate (ZnMoO4) and ZnO–MoO3 materials

2019 ◽  
Vol 21 (16) ◽  
pp. 8569-8579 ◽  
Author(s):  
Vincent Girard ◽  
David Chiche ◽  
Arnaud Baudot ◽  
Delphine Bazer-Bachi ◽  
Laurent Lemaitre ◽  
...  
Keyword(s):  
Data Analysis ◽  
Multivariate Data Analysis ◽  
Multivariate Data ◽  
Oxidative Regeneration ◽  
Intermediate Phases ◽  
Kinetics Of ◽  
Zinc Molybdate

QXAS combined to multivariate data analysis enabled to follow sulfidation and oxidative regeneration kinetics of Zn and Mo based materials, with a description of the evolution of the several intermediate phases.

ChemInform Abstract: STUDIES ON THE FORMATION OF ZINC MOLYBDATE

1979 ◽  
Vol 10 (30) ◽  
Author(s):  
T. K. VARADARAJAN ◽  
B. VISWANATHAN ◽  
M. V. C. SASTRI
Keyword(s):  
Zinc Molybdate

X-ray powder diffraction data for zinc molybdate, Na(OH)Zn2(MoO4)2·2.5H2O

2000 ◽  
Vol 15 (3) ◽  
pp. 191-192 ◽  
Author(s):  
Luz Amparo Palacio ◽  
Carlos Saldarriaga
Keyword(s):  
Powder Diffraction ◽  
Diffraction Data ◽  
Monoclinic Space Group ◽  
Powder Diffraction Data ◽  
Space Group ◽  
X Ray ◽  
Zinc Molybdate

Powder diffraction data were collected for a synthetic zinc molybdate of composition Na(OH)Zn2(MoO4)2·2.5H2O. The material is monoclinic, space group C2/m, with a=9.4543(12), b=6.3492(7), c=7.6453(11), β=115.899(13), and V=412.83 Å3.

Investigation of corrosion inhibition performance of ultrasonically prepared sodium zinc molybdate nanopigment in two-pack epoxy-polyamide coating

2014 ◽  
Vol 21 (9) ◽  
pp. 833-852 ◽  
Author(s):  
Sameer A. Kapole ◽  
Bharat A. Bhanvase ◽  
Dipak V. Pinjari ◽  
Parag R. Gogate ◽  
Ravindra D. Kulkarni ◽  
...  
Keyword(s):  
Corrosion Inhibition ◽  
Inhibition Performance ◽  
Sodium Zinc ◽  
Zinc Molybdate

High-performance symmetric supercapacitor based on flower-like zinc molybdate

2018 ◽  
Vol 731 ◽  
pp. 1151-1158 ◽  
Author(s):  
Yong-Ping Gao ◽  
Ke-Jing Huang ◽  
Chen-Xi Zhang ◽  
Shuai-Shuai Song ◽  
Xu Wu
Keyword(s):  
High Performance ◽  
Symmetric Supercapacitor ◽  
Zinc Molybdate

scholarly journals Ultrasonication and hydrothermal assisted synthesis of cloud-like zinc molybdate nanospheres for enhanced detection of flutamide

2020 ◽  
Vol 61 ◽  
pp. 104823 ◽  
Author(s):  
Ramachandran Rajakumaran ◽  
Manickavasagan Abinaya ◽  
Shen-Ming Chen ◽  
Karuppaiah Balamurugan ◽  
Velluchamy Muthuraj
Keyword(s):  
Zinc Molybdate
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