Exploration of the thermal decomposition of zinc oxalate by experimental and computational methods

Hydrothermally Developed ZnC2O4.2H2O Nanocrystals as Efficient Copper‐free Catalyst for the Synthesis of 1,4‐Disubstituted 1,2,3‐Triazoles in Water

“…The observed 2θ values at 18.78, 22.81, 25.07, 30.47, 33.98, 35.24, 40.69, 44.62 and 51.71° correspond to the (202), (002), (111), (402), (020), (021), (022), (221) and (130) planes that are well‐matched with the standard pattern according to JCPDS no. 25–1029 (space group Cccm) [33–35] . The obtained XRD pattern reveals the presence of water of crystallisation in the synthesized sample [32,33] …”

“…25-1029 (space group Cccm). [33][34][35] The obtained XRD pattern reveals the presence of water of crystallisation in the synthesized sample. [32,33] XPS analyses were carried out to explore the oxidation state of the metal species present in the sample.…”

“…[33][34][35] The obtained XRD pattern reveals the presence of water of crystallisation in the synthesized sample. [32,33] XPS analyses were carried out to explore the oxidation state of the metal species present in the sample. As depicted in the Figure 2a, high resolution XPS spectra of Zn 2p exhibits two peaks with binding energies of 1019.72 eV and 1042.90 eV that correspond to Zn 2p 3/2 and Zn 2p 1/2 respectively indicating the presence of Zn in + 2 oxidation state.…”

Insights into Gas-Exfoliation and the In-Situ Template Mechanism of Zinc Compound for Lignin-Derived Supercapacitive Porous Carbon

“…As can be seen from Figure a and b, both LS and LS/ZnC 2 O 4 show stretching vibrations of Ar–OH (1516 and 1464 cm –1 ), −SO 3 – (1134 cm –1 ), C–O (1038 cm –1 ), and C–S (617 cm –1 ) at 30 °C, , but the intensity of Ar–OH in the spectra of LS/ZnC 2 O 4 is much weaker owing to the coordination of zinc ions. Also, three strong stretching vibrations of the OC–O groups at 1377, 1315, and 816 cm –1 from ZnC 2 O 4 can be observed in the spectra of LS/ZnC 2 O 4 . , As the temperature rises, the stretching vibration of the Ar–OH groups gradually disappears, and a new peak is visible at 1703 cm –1 in the spectra of LS/ZnC 2 O 4 , which corresponds to the CO stretching vibrations, indicating that ZnC 2 O 4 favors the dehydrogenation of Ar–OH. As the temperature rises to 450 °C, LS/ZnC 2 O 4 shows comparatively weak signals of −SO 3 – , C–O, and C–S, demonstrating that ZnC 2 O 4 also promotes cleavage of the sulfonate and alcoholic hydroxyl groups.…”

Desenvolvimento de compósitos ZnC2O4/xerogel de carbono para degradação fotocatalítica de azul de metileno sob radiação solar

“…Contudo, esse tipo de material foi pouco explorado na literatura pertinente, com resultados promissores exibidos por sistemas fotocatalíticos utilizando oxalato de titânio, oxalato de ferro e oxalato de estanho [8][9][10]. Nesse contexto, o oxalato de zinco pode ser considerado como um material interessante para aplicação em processos fotocatalíticos, devido à sua simplicidade de síntese, baixa toxicidade, estrutura eletrônica adequada (Energia de gap = 2,4 eV), estabilidade e insolubilidade em meio aquoso [11,12].…”