The influence of anion on properties of ion-exchange Cu-alumina
Апстракт
Alumina can be obtained in several different phases depending on the synthesis parameters. All these phases have different morphology, crystal structure, water content, and surface chemistry that determines their application as catalysts or support for the (electro)catalyst. In this paper, the influence of anion on the electrochemical properties of copper-modified alumina was investigated. Two types of alumina with different water content, 3 mol H2O/ mol Al2O3 (designated as T) and 0.6 mol H2O/ mol Al2O3 (designated as G), were used in this study. Copper-modified alumina samples were prepared by ion exchange with a solution of CuSO4, CuCl2, or Cu(NO3)2. The obtained samples were characterized by DR UV/Vis spectroscopy and cyclic voltammetry. The DR UV/Vis results showed a broad band in the range of 300 – 600 nm corresponding to the ligand-to-metal charge transition band. The results showed that copper-modified G alumina showed a higher current originating from copper after the ion exch...ange procedure, regardless of the anion used. The order of activity was SO4 2- > Cl- NO3 - for G alumina and SO4 2- Cl- >NO3 - for T alumina.
Извор:
Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade, 2023, 78-Издавач:
- Belgrade : Serbian Ceramic Society
Колекције
Институција/група
VinčaTY - CONF AU - Novaković, T. AU - Pjević, Dejan AU - Abazović, Nadica AU - Mojović, Z. PY - 2023 UR - https://vinar.vin.bg.ac.rs/handle/123456789/11649 AB - Alumina can be obtained in several different phases depending on the synthesis parameters. All these phases have different morphology, crystal structure, water content, and surface chemistry that determines their application as catalysts or support for the (electro)catalyst. In this paper, the influence of anion on the electrochemical properties of copper-modified alumina was investigated. Two types of alumina with different water content, 3 mol H2O/ mol Al2O3 (designated as T) and 0.6 mol H2O/ mol Al2O3 (designated as G), were used in this study. Copper-modified alumina samples were prepared by ion exchange with a solution of CuSO4, CuCl2, or Cu(NO3)2. The obtained samples were characterized by DR UV/Vis spectroscopy and cyclic voltammetry. The DR UV/Vis results showed a broad band in the range of 300 – 600 nm corresponding to the ligand-to-metal charge transition band. The results showed that copper-modified G alumina showed a higher current originating from copper after the ion exchange procedure, regardless of the anion used. The order of activity was SO4 2- > Cl- NO3 - for G alumina and SO4 2- Cl- >NO3 - for T alumina. PB - Belgrade : Serbian Ceramic Society C3 - Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade T1 - The influence of anion on properties of ion-exchange Cu-alumina SP - 78 UR - https://hdl.handle.net/21.15107/rcub_vinar_11649 ER -
@conference{ author = "Novaković, T. and Pjević, Dejan and Abazović, Nadica and Mojović, Z.", year = "2023", abstract = "Alumina can be obtained in several different phases depending on the synthesis parameters. All these phases have different morphology, crystal structure, water content, and surface chemistry that determines their application as catalysts or support for the (electro)catalyst. In this paper, the influence of anion on the electrochemical properties of copper-modified alumina was investigated. Two types of alumina with different water content, 3 mol H2O/ mol Al2O3 (designated as T) and 0.6 mol H2O/ mol Al2O3 (designated as G), were used in this study. Copper-modified alumina samples were prepared by ion exchange with a solution of CuSO4, CuCl2, or Cu(NO3)2. The obtained samples were characterized by DR UV/Vis spectroscopy and cyclic voltammetry. The DR UV/Vis results showed a broad band in the range of 300 – 600 nm corresponding to the ligand-to-metal charge transition band. The results showed that copper-modified G alumina showed a higher current originating from copper after the ion exchange procedure, regardless of the anion used. The order of activity was SO4 2- > Cl- NO3 - for G alumina and SO4 2- Cl- >NO3 - for T alumina.", publisher = "Belgrade : Serbian Ceramic Society", journal = "Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade", title = "The influence of anion on properties of ion-exchange Cu-alumina", pages = "78", url = "https://hdl.handle.net/21.15107/rcub_vinar_11649" }
Novaković, T., Pjević, D., Abazović, N.,& Mojović, Z.. (2023). The influence of anion on properties of ion-exchange Cu-alumina. in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade Belgrade : Serbian Ceramic Society., 78. https://hdl.handle.net/21.15107/rcub_vinar_11649
Novaković T, Pjević D, Abazović N, Mojović Z. The influence of anion on properties of ion-exchange Cu-alumina. in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade. 2023;:78. https://hdl.handle.net/21.15107/rcub_vinar_11649 .
Novaković, T., Pjević, Dejan, Abazović, Nadica, Mojović, Z., "The influence of anion on properties of ion-exchange Cu-alumina" in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade (2023):78, https://hdl.handle.net/21.15107/rcub_vinar_11649 .