Enhancing hydrogen adsorption through optimized magnesium dispersion on fibrous nano-silica scaffold: Kinetic and thermodynamic studies
Silica material, particularly, fibrous nano-silica (FNS) is one of the potential scaffolds for hydrogen storage, however, low hydrogen adsorption limits its application. To improve its adsorption capacities, the incorporation of active metal, particularly magnesium (Mg), was prepared. FNS with well-...
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| Format: | Article |
| Language: | English English |
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Elsevier Ltd
2024
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| Online Access: | http://umpir.ump.edu.my/id/eprint/42372/ http://umpir.ump.edu.my/id/eprint/42372/1/Enhancing%20hydrogen%20adsorption%20through%20optimized%20magnesium%20dispersion%20on%20fibrous%20nano-silica%20scaffold.pdf http://umpir.ump.edu.my/id/eprint/42372/2/Enhancing%20hydrogen%20adsorption.pdf |
| _version_ | 1848826593500200960 |
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| author | Abdulkadir, B. A. M., Ismail Herma Dina, Setiabudi |
| author_facet | Abdulkadir, B. A. M., Ismail Herma Dina, Setiabudi |
| author_sort | Abdulkadir, B. A. |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | Silica material, particularly, fibrous nano-silica (FNS) is one of the potential scaffolds for hydrogen storage, however, low hydrogen adsorption limits its application. To improve its adsorption capacities, the incorporation of active metal, particularly magnesium (Mg), was prepared. FNS with well-developed pore structures and a good surface area were synthesized. Various amounts of Mg (1–5 wt%) were infiltrated into the FNS. To study the effect of metal loading, the adsorbents were characterized by their chemical structure, crystal phase, morphology/elemental composition, and textural properties. Subsequently, hydrogen adsorption studies were conducted where different reaction conditions, including metal loading, catalyst loading, and temperature were studied. Furthermore, kinetic and thermodynamic studies were conducted based on the Langmuir and Van't Hoff models. The results of the characterizations show that the Mg metal was well dispersed into the porous FNS with no significant changes in the original structure. The optimum adsorption of 1.90 wt% was achieved at 1.0 wt% Mg loading, 0.1 g catalyst loading, and 423 K temperature. Kinetic studies demonstrated that the adsorption process fits the pseudo-second-order reaction. The 1%Mg/FNS adsorbents showed good reusability where 5 runs were conducted with <5 % loss in activity. Therefore, this result indicated that infiltration of Mg into the silica is one of the most active approaches in improving the hydrogen adsorption capacities of FNS. |
| first_indexed | 2025-11-15T03:47:17Z |
| format | Article |
| id | ump-42372 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T03:47:17Z |
| publishDate | 2024 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-423722024-08-15T07:52:59Z http://umpir.ump.edu.my/id/eprint/42372/ Enhancing hydrogen adsorption through optimized magnesium dispersion on fibrous nano-silica scaffold: Kinetic and thermodynamic studies Abdulkadir, B. A. M., Ismail Herma Dina, Setiabudi TP Chemical technology Silica material, particularly, fibrous nano-silica (FNS) is one of the potential scaffolds for hydrogen storage, however, low hydrogen adsorption limits its application. To improve its adsorption capacities, the incorporation of active metal, particularly magnesium (Mg), was prepared. FNS with well-developed pore structures and a good surface area were synthesized. Various amounts of Mg (1–5 wt%) were infiltrated into the FNS. To study the effect of metal loading, the adsorbents were characterized by their chemical structure, crystal phase, morphology/elemental composition, and textural properties. Subsequently, hydrogen adsorption studies were conducted where different reaction conditions, including metal loading, catalyst loading, and temperature were studied. Furthermore, kinetic and thermodynamic studies were conducted based on the Langmuir and Van't Hoff models. The results of the characterizations show that the Mg metal was well dispersed into the porous FNS with no significant changes in the original structure. The optimum adsorption of 1.90 wt% was achieved at 1.0 wt% Mg loading, 0.1 g catalyst loading, and 423 K temperature. Kinetic studies demonstrated that the adsorption process fits the pseudo-second-order reaction. The 1%Mg/FNS adsorbents showed good reusability where 5 runs were conducted with <5 % loss in activity. Therefore, this result indicated that infiltration of Mg into the silica is one of the most active approaches in improving the hydrogen adsorption capacities of FNS. Elsevier Ltd 2024-10 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/42372/1/Enhancing%20hydrogen%20adsorption%20through%20optimized%20magnesium%20dispersion%20on%20fibrous%20nano-silica%20scaffold.pdf pdf en http://umpir.ump.edu.my/id/eprint/42372/2/Enhancing%20hydrogen%20adsorption.pdf Abdulkadir, B. A. and M., Ismail and Herma Dina, Setiabudi (2024) Enhancing hydrogen adsorption through optimized magnesium dispersion on fibrous nano-silica scaffold: Kinetic and thermodynamic studies. Microporous and Mesoporous Materials, 378 (113232). pp. 1-13. ISSN 1387-1811. (Published) https://doi.org/10.1016/j.micromeso.2024.113232 https://doi.org/10.1016/j.micromeso.2024.113232 |
| spellingShingle | TP Chemical technology Abdulkadir, B. A. M., Ismail Herma Dina, Setiabudi Enhancing hydrogen adsorption through optimized magnesium dispersion on fibrous nano-silica scaffold: Kinetic and thermodynamic studies |
| title | Enhancing hydrogen adsorption through optimized magnesium dispersion on fibrous nano-silica scaffold: Kinetic and thermodynamic studies |
| title_full | Enhancing hydrogen adsorption through optimized magnesium dispersion on fibrous nano-silica scaffold: Kinetic and thermodynamic studies |
| title_fullStr | Enhancing hydrogen adsorption through optimized magnesium dispersion on fibrous nano-silica scaffold: Kinetic and thermodynamic studies |
| title_full_unstemmed | Enhancing hydrogen adsorption through optimized magnesium dispersion on fibrous nano-silica scaffold: Kinetic and thermodynamic studies |
| title_short | Enhancing hydrogen adsorption through optimized magnesium dispersion on fibrous nano-silica scaffold: Kinetic and thermodynamic studies |
| title_sort | enhancing hydrogen adsorption through optimized magnesium dispersion on fibrous nano-silica scaffold: kinetic and thermodynamic studies |
| topic | TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/42372/ http://umpir.ump.edu.my/id/eprint/42372/ http://umpir.ump.edu.my/id/eprint/42372/ http://umpir.ump.edu.my/id/eprint/42372/1/Enhancing%20hydrogen%20adsorption%20through%20optimized%20magnesium%20dispersion%20on%20fibrous%20nano-silica%20scaffold.pdf http://umpir.ump.edu.my/id/eprint/42372/2/Enhancing%20hydrogen%20adsorption.pdf |