Article
Chemistry, Applied
Chi Cheng Chong, Yoke Wang Cheng, Syahida Nasuha Bukhari, Herma Dina Setiabudi, Aishah Abdul Jalil
Summary: Two fibrous SBA-15 catalysts prepared by microemulsion technique exhibited excellent performance in methane dry reforming, with Ni/DFSBA-15 showing superior activity, stability, and coke resistance compared to Ni/F-SBA-15. The fully accessible structure, uniform dispersion of Ni phase, and stronger metal-support interaction of Ni/DFSBA-15 contributed to its enhanced catalytic properties.
Article
Energy & Fuels
Ahmed S. Al-Fatesh, Samsudeen O. Kasim, Ahmed A. Ibrahim, Ahmed Osman, Ahmed E. Abasaeed, Hanan Atia, Udo Armbruster, Leone Frusteri, Abdulrahman bin Jumah, Yousef Mohammed Alanazi, Anis H. Fakeeha
Summary: This study investigated the performance of supported Ni catalysts in the utilization of greenhouse gases like CO2 and CH4 via dry reforming. The results showed that the catalyst with 0.5% Sc loading led to the highest conversion and the lowest relative activity loss. The average methane and carbon dioxide conversions were 78% and 86%, respectively, at 750 degrees C. The catalyst demonstrated relatively constant methane and carbon dioxide conversions over 80 hours on stream.
Article
Materials Science, Multidisciplinary
Chao Sun, Paulina Summa, Ye Wang, Katarzyna Swirk Da Costa, Albert Miro i Rovira, Sandra Casale, Konrad Swierczek, Changwei Hu, Magnus Ronning, Patrick Da Costa
Summary: High surface area and porous SBA-16 was used as support for Ni nanoparticles through different methods, and the catalyst derived from ammonia evaporation showed the best catalytic performance. The improvement in catalytic behavior was attributed to the strong metal-support interaction and high Ni dispersion.
APPLIED MATERIALS TODAY
(2022)
Article
Chemistry, Applied
P. J. Megia, A. J. Vizcaino, M. Ruiz-Abad, J. A. Calles, A. Carrero
Summary: This study investigates the deactivation of Co/SBA-15 catalyst during the steam reforming of model compounds from the aqueous fraction of bio-oil. The deactivation process occurs in two distinct stages, mainly affected by the amount of coke deposited and its C/H ratio.
Article
Chemistry, Physical
Kuppusamy Palanichamy, Natarajan Sasirekha
Summary: A one-pot hydrothermal technique was used to synthesize Ti-incorporated mesoporous SBA-15 with varying Si/Ti ratios, which were further modified by introducing Ni and Pt as active metal and promoter, respectively. The characterization analysis confirmed the incorporation of titanium ions and the superior performance of Pt-Ni/Ti-SBA-15 (Si/Ti = 10) in methane dry reforming.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Chemical
Shuncheng Li, Yan Shao, Huanhao Chen, Xiaolei Fan
Summary: This study demonstrates a technique for ammonia synthesis using nonthermal plasma-enabled mesoporous silica-supported nickel catalysts. The addition of magnesium in SBA-15 was found to enhance the ammonia synthesis rate and energy efficiency.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Energy & Fuels
Norshakirah Ahmad Rashidi, Elnida Mustapha, Yeow Yean Theng, Noor Azira Abdul Razak, Najihah Abdul Bar, Khairul Basyar Baharudin, Darfizzi Derawi
Summary: Waste cooking oil is an attractive feedstock for producing advanced biofuels due to its low cost and abundant availability. This study focused on the synthesis and analysis of mesoporous bimetallic catalysts for the catalytic deoxygenation of waste cooking oil. The results showed that the catalyst with 10% Ni-Fe/SBA-15 had the highest liquid yield but low selectivity towards the diesel fraction, while the catalyst with 5% Ni-Co/SBA-15 had the highest selectivity towards the diesel fraction.
Article
Chemistry, Multidisciplinary
Luming Li, Song Wu, Hongmei Li, Jie Deng, Junshan Li
Summary: A nanocomposite catalyst was developed for the dry reforming of methane, which showed enhanced catalytic activity due to the high specific surface area of the mesoporous support and the introduction of Pt. This study demonstrates the potential application of high specific surface area mesoporous perovskite in various catalytic processes.
Article
Engineering, Chemical
Syahida Nasuha Bukhari, Chi Cheng Chong, Herma Dina Setiabudi, Yoke Wang Cheng, Lee Peng Teh, Aishah Abdul Jalil
Summary: By transforming rod-like SBA-15 into fibrous type F-SBA-15 and evaluating Ni/F-SBA-15 in CO2 methantion, a superior catalytic performance was achieved due to the favorable physicochemical properties of F-SBA-15. This was evidenced by the higher stability and coke resistance ability demonstrated by Ni/F-SBA-15 compared to Ni/SBA-15.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Chemistry, Applied
Xiaoling Miao, Weihua Shen, Xinhua Gao, Yunjin Fang
Summary: The introduction of La through wet impregnation significantly improves the hydrothermal stability of SBA-15, with La mainly entering the silanol groups on the pore surface defects. La-SBA-15 with appropriate La loading can be used as a stable support for catalytic reactions involving steam.
JOURNAL OF POROUS MATERIALS
(2021)
Article
Chemistry, Physical
Zhige Zhang, Guofeng Zhao, Bing Han, Jiawei Zhong, Jun Xie
Summary: The study on Ni-SrO/SCf composite nanomaterial shows that it has a stronger resistance to Ni-sintering/coke-deposition compared to unmodified Ni/SCf, and its activity can remain relatively stable under high temperature conditions.
MOLECULAR CATALYSIS
(2021)
Article
Thermodynamics
Amira Neni, Yacine Benguerba, Marco Balsamo, Alessandro Erto, Barbara Ernst, Djafer Benachour
Summary: The study focuses on Sorption-Enhanced Methane Steam Reforming (SE-MSR) process, highlighting the importance of temperature as a key parameter and the impact of exothermic carbonation reaction on the thermal regimes and performance of catalyst. Optimal operating conditions of both catalyst and adsorbent are crucial for maximizing hydrogen production and reducing CO2-related coke deposition.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Energy & Fuels
Qianqian Chen, Aik Chong Lua
Summary: The study demonstrated the feasibility of using the electroless nickel plating technique for the preparation of catalysts for catalytic methane decomposition. The Ni/SBA-15 catalyst exhibited good catalytic performance, high stability, and resistance to deactivation, with the catalyst loading and reaction temperature being key factors affecting performance.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Katarzyna Stawicka, Maciej Trejda, Maria Ziolek
Summary: Niobium-containing SBA-15 catalysts prepared by different methods exhibit varying acidity properties, with niobium incorporation into the SBA-15 framework being crucial for high catalytic performance. Silanization can reduce the number of acidic sites on the catalysts and significantly enhance acrolein yield and selectivity.
Article
Chemistry, Physical
Yogita Soni, Sharad Gupta, C. P. Vinod
Summary: The study demonstrates the importance of metal-support interaction in tuning the product selectivity during CO2 hydrogenation on Pd/(Ti)-SBA-15 catalyst, particularly the formation of PdTi interface.
MOLECULAR CATALYSIS
(2021)
Article
Chemistry, Physical
M. S. Azami, A. A. Jalil, F. F. A. Aziz, N. S. Hassan, C. R. Mamat, N. M. Izzudin
Summary: An interlayer structure hybrid wrinkled silica titania (WST) loaded on graphitic carbon nitride (g-C3N4) was successfully constructed using a facile microwave-assisted solid-state technique. The photocatalytic performance was evaluated, and the 10 wt% WST@CN exhibited the best performance due to its hidden morphology between the layers of g-C3N4, leading to enhanced charge separation efficiency. This study is significant for improving visible light-driven photocatalytic performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
N. S. Hassan, A. A. Jalil, C. N. C. Hitam, M. H. Sawal, M. N. S. Rahim, I. Hussain, N. W. C. Jusoh, R. Saravanan, D. Prasetyoko
Summary: Fibrous silica tantalum (FSTa) and metal oxides (AgO, CuO, ZnO)/FSTa catalysts were prepared and characterized for the photocatalytic oxidative desulfurization (PODS) of dibenzothiophene (DBT). The addition of metal oxides decreased the efficiency of PODS, possibly due to mismatched redox potentials. Among the metal oxides loaded FSTa, Zn/FSTa exhibited higher desulfurization rate and could directly oxidize DBT into dibenzothiophene sulfone (DBTO2). The kinetics study showed that the photodegradation over Zn/FSTa followed the pseudo-first-order and adsorption was the rate-limiting step.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Applied
Pham Thi Thuy Phuong, Nguyen Nguyen Phuong, P. Senthil Kumar, Nguyen Phuc Hoang Duy, Quyet Van Le, Le Thi Bao Ngoc, A. A. Jalil, Saravanan Rajendran, Chin Kui Cheng, Thanh-Huong Nguyen, Minh Tuan Nguyen Dinh, Dai-Viet N. Vo
Summary: CO2 reforming of methanol for producing hydrogen was experimentally studied using a fixed-bed reactor with 10%Ni/SiO2 catalyst. The catalyst was fully reduced and had a surface area of 240.5 m(2)/g during H-2 activation. The methanol conversion significantly improved from 52% to 99% with increasing temperature from 450 to 550 degrees C due to the endothermic nature of CO2 reforming. The H-2/CO ratios ranged from 1.65 to 1.76 at different reaction temperatures, which are preferred for long-chain hydrocarbons generation in Fischer-Tropsch production. The catalytic activity remained stable within 8 hours on-stream due to the maintenance of Ni-0 metallic phase during CO2 reforming of methanol. The catalytic deterioration was not observed because of the concomitant CO2 gasification of surface carbonaceous species during reaction.
TOPICS IN CATALYSIS
(2023)
Article
Chemistry, Analytical
Yorinda Buyang, Suprapto Suprapto, Reva Edra Nugraha, Holilah Holilah, Hasliza Bahruji, Ridho Hantoro, Aishah Abdul Jalil, Titie Prapti Oetami, Didik Prasetyoko
Summary: Conversion of non-edible RTO into bio-oil by catalytic pyrolysis using dolomite as a catalyst, without prior calcination or treatment. Dolomite enhanced bio-oil yield and reduced char formation at higher pyrolysis temperatures. Dolomite also improved the composition and physical properties of bio-oil, including viscosity, calorific value, and density, and reduced the carboxylic acid content through esterification reaction.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Biotechnology & Applied Microbiology
Duyen Thi Cam Nguyen, A. A. Jalil, Nguyen Chi Huynh, Linh Quang Phan, Dai-Viet N. Vo, Thuan Van Tran
Summary: In this study, ZnFe2O4@AC derived from O. stricta biowaste was fabricated and used for dye removal. The optimized ZnFe2O4@AC showed excellent performance in terms of adsorption capacity and kinetics, making it a promising bioadsorbent.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Review
Chemistry, Analytical
N. F. Khusnun, A. Arshad, A. A. Jalil, L. Firmansyah, N. S. Hassan, W. Nabgan, A. A. Fauzi, M. B. Bahari, N. Ya'aini, A. Johari, R. Saravanan
Summary: Green hydrogen as a promising environmentally friendly electricity provider has become a hot topic worldwide, as it is considered to replace conventional fossil fuels. Photoelectrochemical (PEC) cells efficiently convert sunlight into green H2 fuel through PEC water splitting, with carbon-doped materials attracting great interest due to their excellent photocatalytic activity and wide applications. The efficiency of carbon-doped materials in H2 production relies on the separation and transport efficiency of charge carriers. This review summarizes the recent research on carbon-doped materials as photoanodes for PEC water splitting, including their performance, functionalization, heterojunction mechanism, and cell design.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Review
Environmental Sciences
N. S. Hassan, A. A. Jalil, N. F. Khusnun, M. B. Bahari, I. Hussain, M. L. Firmansyah, R. E. Nugraha, Saravanan Rajendran
Summary: Extra-modification of zirconium dioxide (ZrO2) can improve its photocatalytic performance, particularly in degrading organic pollutants, especially dyes and phenolic compounds. Possible mechanisms of extra-modification include p-n heterojunction, type II heterojunction, and Z-scheme heterojunction. The effectiveness of modified ZrO2 photocatalyst depends on its band position, oxygen vacancy concentration, and metal defect sites. The opportunities and future challenges of extra-modified ZrO2 photocatalyst are also discussed. This review aims to share knowledge about extra-modified ZrO2 photocatalysts and inspire new environmental remediation applications.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Chemistry, Multidisciplinary
Didik Prasetyoko, Novia Amalia Sholeha, Riki Subagyo, Maria Ulfa, Hasliza Bahruji, Holilah Holilah, Mokhammad Fajar Pradipta, Aishah Abdul Jalil
Summary: The use of gelatin-Pluronic F127 as a double colloidal system enhances the mesoporosity in ZnO nanoparticles, resulting in improved photocatalytic degradation of dyes.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Review
Environmental Sciences
Thuan Van Tran, Duyen Thi Cam Nguyen, Thuy Thi Thanh Nguyen, Dai Hai Nguyen, Mansur Alhassan, A. A. Jalil, Walid Nabgan, Taeyoon Lee
Summary: This article reviews the production and application of adsorbents derived from pineapple wastes, with a focus on the effects of thermal processing and chemical modification on the surface chemistry and porosity of the adsorbents. The pineapple waste-based adsorbents have large specific surface areas, and their adsorption mechanism involves electrostatic attraction, complexation, chelation, and ion exchange. The pineapple waste-based adsorbents can be easily regenerated, showing great potential for circular economy.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Review
Chemistry, Multidisciplinary
M. Alhassan, A. A. Jalil, M. B. Bahari, A. H. K. Owgi, W. Nabgan, N. S. Hassan, T. V. Tran, A. A. Abdulrasheed, M. Y. S. Hamid, M. Ikram, M. L. Firmansyah, H. Holilah, N. A. Sholejah
Summary: Environmental pollution, climate change, and fossil fuel extinction have driven global interest in finding alternative energy sources. Dry reforming of methane (DRM) is a promising technique for syngas production. This article discusses the challenges of coking and explores various factors that influence the performance of nickel catalysts in the process.
Article
Green & Sustainable Science & Technology
Eileen Li Shien Ng, Kok Keong Lau, Sim Yee Chin, Soh Fong Lim
Summary: Absorption is a widely used method for capturing CO2, but it often faces issues such as foaming. This study investigates the effect of degradation products on foaming behavior in MDEA and PZ solutions, and evaluates the performance of PDMS antifoam. The presence of certain degradation products significantly increases foaming, with hexadecane causing the highest amount of foam. Gas flow rate and temperature also affect foaming tendency and stability. PDMS antifoam effectively reduces foam formation in the presence of degradation products, with the highest reduction achieved with hexadecane. This research highlights the cause of foaming and the importance of antifoam in mitigating its effects.
Article
Environmental Sciences
Devaraj Manoj, Lalitha Gnanasekaran, Saravanan Rajendran, A. A. Jalil, Mohammad Nahid Siddiqui, F. Gracia, Matias Soto-Moscoso
Summary: The subject of water contamination and its impact on society and humans has been a topic of discussion for several decades. Phenolic compounds are widely found in water sources and it is crucial to determine their toxicity in natural and drinking water due to their harmful effects on humans. This study focuses on the development of an effective electrochemical sensor using a mesoporous structure of Fe3O4-TiO2 decorated on a glassy carbon electrode to detect catechol. The resulting Fe3O4-TiO2 based nanocomposite exhibited a mesoporous structure with highly active magnetite nanoparticles, showing a significant increase in the electrochemical response compared to pure TiO2.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
F. F. A. Aziz, A. A. Jalil, N. S. Hassan, A. A. Fauzi, N. F. Khusnun, M. W. Ali, M. B. Bahari, W. Nabgan
Summary: Ternary CuO/AgO/FSZr photocatalysts with different CuO loadings (1, 3 and 5 wt%) were prepared and tested for simultaneous chromium (VI) photoreduction and p-cresol photooxidation. The 3CuO/AgO/FSZr showed the highest performance due to the strong interaction between metal oxides and support. The optimum parameters predicted by response surface methodology (RSM) were 9.6 mg L-1 of chromium (VI) concentration, 9.8 mg L-1 of p-cresol concentration and 0.32 g L-1 of catalyst dosage.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Thuan Van Tran, A. A. Jalil, Duyen Thi Cam Nguyen, Tung M. Nguyen, Mansur Alhassan, Walid Nabgan, Saravanan Rajendran, M. L. Firmansyah
Summary: In this study, cobalt@carbon nanotubes (Co@CNTs) derived from Co-ZIF-67 were used for the adsorptive removal of tetracycline (TCC) and sulfadiazine (SDZ). The results showed that Co@CNTs-700 could remove 99.6% of TCC and 97.3% of SDZ under the optimum conditions. The interactions of hydrogen bonding, 7c-7c stacking, and electro-static attraction played a major role in the adsorption of antibiotics.
ENVIRONMENTAL RESEARCH
(2023)
Article
Energy & Fuels
M. A. Aziz, A. A. Jalil, M. Y. S. Hamid, N. S. Hassan, N. F. Khusnun, M. B. Bahari, A. H. Hatta, M. A. H. Aziz, J. Matmin, S. H. Zein, Rajendran Saravanane
Summary: The Centre of Hydrogen Energy (CHE) has recently developed novel structures of fibrous mesoporous silica nano-particles (FMSN) and fibrous Mobil composition of matter-41 (FMCM-41), namely CHE-SM and CHE-S41. These structures were used as a support, with 5 wt% Ni as the active metal, for carbon dioxide (CO2) methanation. The results from low angle x-ray diffraction (XRD) and transmission electron microscopy (TEM) showed that Ni/CHE-S41 had a hexagonal structure, while Ni/CHE-SM had a lamellar structure. Ni particles were found to be deposited on the surface of CHE-SM due to its smaller support pore size (4.41 nm) compared to the average Ni particles diameter (5.61 nm), resulting in higher basicity and reducibility. On the other hand, Ni/CHE-S41 exhibited deposition of Ni particles in the pore due to the difference in support pore size (4.89 nm) compared to average Ni particles diameter (4.01 nm). As a result, Ni/CHE-SM achieved a higher CO2 conversion (88.6 %) than Ni/CHE-S41 (82.9%) at 500 degrees C, while both showed 100% selectivity towards methane. Furthermore, Ni/CHE-SM demonstrated excellent resistance to coke formation during a 50 h stability test at 500 degrees C, as evidenced by a lower weight loss of 0.469% in TGA analysis and a lower G:D band ratio of 0.43 in Raman spectroscopy compared to Ni/CHE-S41 (0.596% weight loss and 0.74 G:D band ratio). These properties of Ni/CHE-SM are advantageous in the field of methane production, as coke formation can affect the equilibrium of the CO2 methanation process.
