Naimah Ibrahim
Thumbnail Image
Preferred name
Naimah Ibrahim
Official Name
Ibrahim, Naimah
Alternative Name
Ibrahim, Naimah
Ibrahim, N.
Naimah, I.
Main Affiliation
Scopus Author ID
23767004300
Researcher ID
AAA-9532-2021

Research Output

Filters

3
1
3
3
Reset filters

Settings
Now showing 1 - 3 of 3
Thumbnail Image
Publication

Surface alkali promotion of carbon dioxide hydrogenation for conservation of carbon sources: Cyclic voltammetry study

2020-01-01 , Tan S.Y. , Naimah Ibrahim , Umi Fazara Md Ali , Sara Yasina Yusuf , Aroua M.K.

Conversion of CO2 captured from biogas upgrading process into useful chemicals or fuels e.g. methane is an attractive route towards conservation of carbon sources. Sustainable hydrogenation route could be achieved by combining the process with hydrogen generated from water electrolysis. In this work, cyclic voltammetry was used as preliminary technique to probe the electrochemical behaviour of Na-modified Pt/YSZ as model catalyst under CO2 hydrogenation. The reaction is irreversible and the voltammogram features are not easily distinguishable under reaction conditions. The increase in cathodic peak height and the decrease in peak potential with addition of sodium at low coverage (0.32%) indicated that the charge transfer reaction was enhanced and thus the methanation reaction could be electrochemically promoted given sufficient amount of H2 flow. However, increasing Na coverage was found to decrease the current hysteresis possibly due to formation of sodium compounds such as carbonates or oxides that populate the three-phase-boundary (tpb) active sites, thus deactivating the catalyst.

View
Thumbnail Image
Publication

Advancement in recycling waste tire activated carbon to potential adsorbents

2022-12-01 , Umi Fazara Md Ali , Hussin F. , Subash Chandra Bose Gopinath , Aroua M.K. , Khamidun M.H. , Jusoh N. , Naimah Ibrahim , Ahmad S.F.K.

Waste tires have been identified as one of the contributors to environmental problems and the issue of inadequate landfill spaces. The lack of consistent and systematic approaches such as specific regulations/laws or mechanisms of waste management to waste tires, limited application of technology for recycling waste tires and lack of awareness on the impacts of waste tires problem, make waste tires a source of environmental pollution. Various researches have been conducted on recycling waste tires into polymer bends, and materials to harden concretes, fuels and adsorbent. Researchers suggested that pyrolysis is the current trend of recycling waste tire to harvest the saleable pyrolysis oil and the recycled carbon black. Therefore, this review attempts to compile relevant knowledge about the potential of adsorbent derived from waste tires to be applied in the removal of various types of pollutants like heavy metals, organic pollutants, dye and air/gaseous pollutant. Studies were carried out on revealing the properties and the characteristics of activated carbon derived from waste tire as effective adsorbent which influence the application performance at liquid or gas phase. In addition, the challenges in the production of activated carbon derived from waste tire were discussed.

View
Thumbnail Image
Publication

Advancement in recycling waste tire activated carbon to potential adsorbents

2022-12-01 , Umi Fazara Md Ali , Hussin F. , Subash Chandra Bose Gopinath , Aroua M.K. , Khamidun M.H. , Jusoh N. , Naimah Ibrahim , Syahirah Faraheen Kabir Ahmad

Waste tires have been identified as one of the contributors to environmental problems and the issue of inadequate landfill spaces. The lack of consistent and systematic approaches such as specific regulations/laws or mechanisms of waste management to waste tires, limited application of technology for recycling waste tires and lack of awareness on the impacts of waste tires problem, make waste tires a source of environmental pollution. Various researches have been conducted on recycling waste tires into polymer bends, and materials to harden concretes, fuels and adsorbent. Researchers suggested that pyrolysis is the current trend of recycling waste tire to harvest the saleable pyrolysis oil and the recycled carbon black. Therefore, this review attempts to compile relevant knowledge about the potential of adsorbent derived from waste tires to be applied in the removal of various types of pollutants like heavy metals, organic pollutants, dye and air/gaseous pollutant. Studies were carried out on revealing the properties and the characteristics of activated carbon derived from waste tire as effective adsorbent which influence the application performance at liquid or gas phase. In addition, the challenges in the production of activated carbon derived from waste tire were discussed.

View