The isothermal decomposition of metal sulphate powders in high vacuum

Gimzewski, Edmund; Wyatt, P. A. H.

doi:10.1016/0040-6031(81)80034-2

Cited by 6 publications

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The decomposition of zinc sulfate results in ZnO production, involving the intermediate product ZnO•2ZnSO 4 , compatible with the results obtained in the works of many authors [36][37][38]47,[50][51][52][53]. Moreover, the intermediate step is not observed in the presence of the catalyst, as also evidenced in the work of Soto-Diaz et al [27].…”

Section: Samplesupporting

confidence: 89%

Thermodynamics and Kinetic Modeling of the ZnSO4·H2O Thermal Decomposition in the Presence of a Pd/Al2O3 Catalyst

et al. 2022

View full text Add to dashboard Cite

The sulfur–iodine thermochemical water-splitting cycle is a promising route proposed for hydrogen production. The decomposition temperature remains a challenge in the process. Catalysts, such as Pd supported on Al2O3, are being considered to decrease reaction temperatures. However, little is known regarding the kinetic behavior of such systems. In this work, zinc sulfate thermal decomposition was studied through non-isothermal thermogravimetric analysis to understand the effect of a catalyst within the sulfur–iodine reaction system context. The findings of this analysis were also related to a thermodynamic assessment. It was observed that the presence of Pd/Al2O3 modified the reaction mechanism, possibly with some intermediate reactions that were suppressed or remarkably accelerated. The proposed model suggests that zinc sulfate transformation occurred in two sequential stages without the Pd-based material. Activation energy values of 238 and 368 kJ.mol−1 were calculated. In the presence of Pd/Al2O3, an activation energy value of 204 kJ.mol−1 was calculated, which is lower than observed previously.

show abstract

Section: Samplesupporting

confidence: 89%

Thermodynamics and Kinetic Modeling of the ZnSO4·H2O Thermal Decomposition in the Presence of a Pd/Al2O3 Catalyst

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The kinetics of the thermal decomposition of metal sulfates, MS04, where M is Cu2+, Ni2+, and Zn2+ were studies in vacuo by isothermal TG. E values were 262 ± 10, 260 ± 21, and 238 ± 14 kJ mol"1, for the Cu, Ni, and Zn salts, respectively (75). Kinetic parameters from nonisothermal TG data were correlated for the first time with simultaneous variations of both the procedural factors of heating rate and sample mass by multiple regression analysis (162).…”

Section: Differential Thermal Analysis and Differential Scanning Calo...mentioning

confidence: 99%

Thermal analysis

Wendlandt¹

1982

Anal. Chem.

View full text Add to dashboard Cite

after 22 years of editing this review (160), has decided to turn the job over to another author. It is with a deep sense of responsibility and dedication that I hereby accept this challenge. The workers in the field of thermal analysis, as well as myself, should be eternally grateful to Dr. Murphy for his devoted and accurate reporting of thermal analysis activities as they occurred through the years. I only hope that I can continue this tradition in the manner and spirit that he did.As usual, this review covers the almost 2-year period from January 1980 through November 1981. Unfortunately, not all of the thermal analysis papers can be described here, due to their magnitude. An attempt has been made, however, to include representative studies in all of the thermal analysis areas as well as, in my judgement, new and novel ideas and developments. Due to space limitations, very few review articles (of which there are many), books, and meetings are included here.

show abstract

ChemInform Abstract: THE ISOTHERMAL DECOMPOSITION OF METAL SULFATE POWDERS IN HIGH VACUUM

Gimzewski¹,

Wyatt²

1981

Chemischer Informationsdienst

View full text Add to dashboard Cite

The isothermal decomposition of metal sulphate powders in high vacuum

Cited by 6 publications

References 4 publications

Thermodynamics and Kinetic Modeling of the ZnSO4·H2O Thermal Decomposition in the Presence of a Pd/Al2O3 Catalyst

Thermodynamics and Kinetic Modeling of the ZnSO4·H2O Thermal Decomposition in the Presence of a Pd/Al2O3 Catalyst

Thermal analysis

ChemInform Abstract: THE ISOTHERMAL DECOMPOSITION OF METAL SULFATE POWDERS IN HIGH VACUUM

Contact Info

Product

Resources

About