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All Journal International Journal of Renewable Energy Development Bulletin of Chemical Reaction Engineering & Catalysis
Setiabudi, Herma Dina
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Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering

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Biomass-Derived Functional Silica Materials for Hydrogen Storage: A Short Review Saeid, Mohammed Faraj; Abdulkadir, Bashir Abubakar; Setiabudi, Herma Dina
Bulletin of Chemical Reaction Engineering & Catalysis 2026: BCREC Volume 21 Issue 2 Year 2026 (August 2026) (Issue in Progress)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20614

Abstract

Hydrogen storage remains one of the foremost challenges in the transition to a clean energy economy. While extensive research has focused on metal hydrides, carbon materials, and complex sorbents, biomass-derived silica materials with high purity (90 wt.%), large surface areas (297-895 m2.g-1), and mesopores (3-60 nm) show strong potential for hydrogen storage but remain largely unexplored. This review highlights the synthesis, structural properties, and hydrogen storage potential of biomass-derived functional silica materials, with a particular focus on rice husk (RH) and bamboo as a sustainable and abundant precursor. Two principal silicon extraction strategies, combustion and alkali treatment, are discussed, emphasizing their influence on silica purity, morphology, and amorphous structure retention. Thermochemical processes, including acid leaching and controlled calcination, are shown to be essential for removing impurities and tailoring textural properties such as surface area, pore volume, and pore architecture. RH-derived silica supports exhibit outstanding effectiveness in dispersing transition metals like Ni and Fe, which in turn significantly improve hydrogen sorption kinetics, catalytic efficiency, and the long-term stability of the material. Additionally, the review explores how various synthesis pathways are expected to influence the performance of resulting materials in hydrogen storage systems, noting how structural collapse during reprecipitation or thermal treatment can negate surface advantages if not properly managed. The combined advantages of sustainability, tunable structural properties, and seamless compatibility with existing hydrogen storage strategies position biomass-derived silica as a highly promising next-generation platform for advanced hydrogen storage applications. Copyright © 2026 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Chemically activated biochar derived from mangrove litter with enhanced CO2 adsorption capacity for carbon sequestration Ariyanti, Dessy; Syifa, Viona; Hapsari, Farida Diyah; Widiasa, I Nyoman; Widayat, Widayat; Silviana, Silviana; Purbasari, Aprilina; Setiabudi, Herma Dina; Hamzah, Fazlena
International Journal of Renewable Energy Development Vol 15, No 3 (2026): May 2026
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2026.62059

Abstract

Overcoming climate change is crucial to ensure environmental sustainability. This research focuses on the development of chemically activated biochar (CAB) from mangrove litters that can be used for CO2 adsorption, which leads to reducing the impacts of climate change. The synthesisation of CAB was carried out via pyrolysis at 400℃ for 2 hours under nitrogen gas flow, followed by treatment using various activating agents (0.1 M of H2SO4, HCl, KOH, and NaOH) for 2 hours with a biochar-to-solution ratio of 1 g : 4 mL. The activation process was designed to enhance surface area, pore characteristics, and functional groups associated with CO2 adsorption performance. The observation on the characteristics of CAB using Scanning Electron Microscope and Energy Dispersive X-Ray (SEM-EDX), The Brunauer, Emmett, Teller and Barret-Joyner-Halenda (BET-BJH), Fourier Transform Infrared Spectroscopy (FTIR), CHN Analyser, and static batch CO2 adsorption tests shows the ability of CAB in capturing CO2 through several possible mechanism. Among the samples, KOH-activated biochar (B-KOH) exhibited the highest CO2 adsorption capacity, reaching 12.47 mmol CO2 g-1 biochar. This high performance is attributed to a potassium (K) composition of 9.74%, which effectively catalyzed the development of a microporous structure, resulting in a micropore volume of 5.927 x 10-3 cm3/g and an optimized average pore width of 1.543 nm. Furthermore, B-KOH maintained the highest O-H group area (1.533 a.u. x cm-1), enhancing its affinity for CO2 molecules. This research offers an innovative and practical solution to reduce greenhouse gases and is expected to have a significant impact, both locally and globally, in advancing sustainable development.
Co-Authors . Widayat Abdulkadir, Bashir Abubakar Aprilina Purbasari Dessy Ariyanti Hamzah, Fazlena Hapsari, Farida Diyah I Nyoman Widiasa Saeid, Mohammed Faraj Silviana Silviana Syifa, Viona