Acta Chemica Malaysia

Journal: Acta Chemica Malaysia (ACMY)
Author:A.M. Shakorfow, A.H. Mohamed
ISSN: 2576-6732
e-ISSN: 2576-6724

This is an open access journal distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

DOI: 10.26480/acmy.02.2024.78.87

Although employment of fossil fuels for power generation may have seemed inevitable, fuel cells since have emerged; however, have been a sustainable energy means. Thanks to their several types, different characteristics and great performance, fuel cells have found a wide range of applications. Among fuel cells, solid oxide fuel cells have been harnessed for the synthesis of valuable chemicals without compromising energy production in a cogeneration setup. It is possible to generate electricity while simultaneously producing syngas with different compositions. This is accomplished through the dry reforming of various fuels, such as CH4-CO2, pure CH4, and other hydrocarbon fuels, aided by selective oxidation. Although that being said, solid oxide fuel cells not only demand difficult operating conditions, but their components such as the cathode, electrolyte, anode, interconnects and sealants must also exhibit several essential bespoke properties. Another significant hurdle to the wider adoption of fuel cells, especially solid oxide fuel cells that utilize hydrogen as a key fuel, is the absence of a comprehensive infrastructure for the production, storage and distribution of hydrogen.

Journal: Acta Chemica Malaysia (ACMY)
Author:A.M. Usman, A.A.Muhammad, Jaweria Ambreen, Syafiqah Saidin , N.U. Shehu, and Otaru Fatimat Oyiza
ISSN: 2576-6732
e-ISSN: 2576-6724

This is an open access journal distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

DOI: 10.26480/acmy.01.2024.51.61

The ability of several hydroxyquinolines to inhibit aluminum corrosion and the effect of hydroxyls at 6, 7, and 8 positions on quinolines in hydrochloric acid were experimentally studied by weight loss, EIS, and PDP. To promote weight loss, 6-hydroxyquinoline (6-OHQ), 7-hydroxyquinoline (7-OHQ), and 8-hydroxyquinoline (8-OHQ) were used under different mass and temperature conditions at different HCl concentrations. The adsorption properties of these inhibitors proved to be reliable. Both chemical and physical mechanisms were significant in the Longmuir isotherm. In comparison, 7-hydroxyquinoline performed better than 6-hydroxyquinoline in terms of corrosion inhibition percentage, mass loss, inhibition efficiency, and surface coverage measured by weight loss. Under identical conditions, 8-hydroxyquinoline performed the worst in terms of corrosion inhibition. The inhibition process proceeded more rapidly in each system via first order kinetics. The surface morphology and functional groups were examined by SEM and FTIR before and after the corrosion study. The weight loss and Nyquist plots from the impedance data and parameters both showed the same behavior. The Tafel plot parameters and polarization data both show the same trend. The EIS, PDP, and weight reduction results are relatively consistent. Although each molecule exhibited excellent corrosion inhibition performance, the 7-OHQ molecule is superior to the other two molecules in inhibiting aluminum corrosion.

Journal: Acta Chemica Malaysia (ACMY)
Author:Huajun Yao, Ji Deng, Fangfang Xiao, Bo Ma, Maohui Li
ISSN: 2576-6732
e-ISSN: 2576-6724

This is an open access journal distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

DOI: 10.26480/acmy.01.2024.46.50

Heterostructure nanoparticles have excellent photoelectrochemical properties, because of the difference of heterostructure characteristics will greatly affect the performance of the play. Therefore, the selective growth of heterostructure nanoparticles is an important research content in the design and synthesis of advanced materials. In this thesis, the octahedral Cu2O crystal was used as the research object. By adjusting the reaction time and the kind and quantity of Surfactant, the nucleation and growth mode of Cu nanoparticles can be different. So that, Cu nanocrystals can be grown in situ at different positions such as the edges and faces of the octahedral Cu2O, and the Cu2O-Cu heterostructures with different spatial configurations were precisely constructed. The results showed that the content of Cu particles on the Cu2O surface also increased with the increase of reaction time. The addition of surfactant PVP hinders the in-situ growth of Cu nanoparticles on the Cu2O surface edge. The addition of CTAB can increase the particle size of Cu nanoparticles. And the addition of SDS can reduce the particle size of Cu nanoparticles while preferentially growing and aggregating on the octahedral Cu2O edge.