Article
Chemistry, Multidisciplinary
Qunhong Weng, Lula Zeng, Zhiwei Chen, Yuxin Han, Kang Jiang, Yoshio Bando, Dmitri Golberg
Summary: Hydrogen fuel cell vehicles face high costs due to inefficient hydrogen storage technologies, with research showing that the chemical states of porous boron nitride materials significantly impact their hydrogen adsorption performances.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Engineering, Environmental
M. Esperanza Adrover, Tanya Wolff, Gabriela Tonetto, Eduardo Lopez
Summary: The performance and stability of mesostructured Pt catalysts for the preferential oxidation of CO in H-2-rich environments were studied. Pt (1%)/Al-MCM-41 exhibited high activity and stability for CO preferential oxidation at 120 degrees C, even when exposed to steam and CO2.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Jie Chen, Yao Yang, Yuanyuan Yao, Zhujian Huang, Qiaoling Xu, Liping He, Beini Gong
Summary: The contamination of antibiotics in the environment has become a serious concern. The development of cost-effective and environmentally friendly adsorbent materials is crucial in addressing this issue. Mesoporous molecular sieve MCM-41 shows significant promise due to its strong adsorption capacity, low cost, and efficient regenerative properties. This study investigated the adsorption behavior of demolded MCM-41 materials for tetracycline, doxycycline, and levofloxacin at different temperatures and pH levels. The results showed that a neutral or weakly acidic pH environment promoted adsorption, while alkaline conditions hindered it. The maximum adsorption capacities were determined for each antibiotic, highlighting the potential of MCM-41 in mitigating antibiotic wastewater contamination.
Article
Pharmacology & Pharmacy
Teodora Popova, Borislav Tzankov, Christina Voycheva, Ivanka Spassova, Daniela Kovacheva, Stanislav Tzankov, Denitsa Aluani, Virginia Tzankova, Nikolai Lambov
Summary: The study demonstrates the potential of MCM-41 and HMS as efficient drug delivery systems for bicalutamide, with high drug loading rates and reduced burst effect. The drug-loaded nanoparticles show good blood biocompatibility and increased antitumor activity against LNCaP cells.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Lorena Garcia-Uriostegui, H. Ivan Melendez-Ortiz, Jose M. Mata-Padilla, Guillermo Toriz
Summary: This study reports the synthesis of mesoporous MCM-41 nanoparticles using microwave radiation. Silica nanoparticles with large surface area and suitable chemical composition were obtained at low power and short time. The particle size was close to 100 nm with a spherical morphology. The microwave radiation power and heating time affected particle size and aggregation. The MCM-41 synthesized under low microwave radiation power had a high surface area and expanded pore diameters compared to hydrothermal synthesis. The sample labeled as MCM400W10 showed a significant number of free silanol groups on the surface.
CERAMICS INTERNATIONAL
(2023)
Article
Environmental Sciences
Yanqing Song, Ping Huang, Hong Li, Ruiyue Li, Wei Zhan, Yaguang Du, Mengyu Ma, Jirong Lan, Tian C. Zhang, Dongyun Du
Summary: In this study, the decorated MCM-41 with iron and magnesium oxide (Fe/Mg-MCM-41) was found to be an excellent adsorbent for arsenic(V) removal from water, with high adsorption capacity, wide pH application range, and regenerability. The characterization analysis and experimental results confirmed the promising potential of Fe/Mg-4-MCM-41 as an adsorbent for treating As-contaminated wastewater.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Applied
Vicente Candela-Noguera, Maria Alfonso, Pedro Amoros, Elena Aznar, Maria Dolores Marcos, Ramon Martinez-Manez
Summary: This study comprehensively investigates the factors affecting the formation of MCM-41 type mesoporous silica nanoparticles (MSN). The hydrolysis and condensation rates are found to play a central role in nanoparticle formation, and disregarded parameters such as stirring strength and surfactant addition rate are shown to modulate nucleation and growth. Furthermore, the aging and evolution of MSN are studied through the analysis of silica framework consolidation over time, providing insights into obtaining reproducible, homogeneous, and tailored-made MCM-41 type MSN.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Energy & Fuels
A. Ariharan, K. Ramesh, R. Vinayagamoorthi, M. Sandhya Rani, B. Viswanathan, S. Ramaprabhu, V Nandhakumar
Summary: A facile method of self-phosphorous doped porous carbon has been developed without using any activation process, showing high H-2 storage capacity and specific capacitance. The carbon material exhibits excellent cyclic stability and shows potential for industrial applications.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Multidisciplinary
Jana Timm, Michael Furtmair, Roland Marschall
Summary: For the first time, the assembly of isolated and purified MCM-41 nanoparticles into nanofibers was achieved through electrospinning. The nanofibers were characterized and the spinning parameters were investigated to tailor the nanofiber diameter. Additionally, the nanofiber mats were successfully functionalized with sulfonic acid groups while maintaining the nanofiber morphology.
Article
Construction & Building Technology
Rafal Panek, Maciej Szelag, Wojciech Franus
Summary: The paper discusses the impact of MCM-41 mesoporous silica on the properties of cement matrix. It was found that the optimal content of MCM-41 is between 0.5% and 1%, as excess silica may disrupt the proper hydration process. The research indicates a high application potential of MCM-41 as an additive in cement.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Energy & Fuels
Song Yang, Qiang Geng, Chao Yang, Huiling Fan, Meisheng Liang, Jinxian Lei, Ju Shangguan
Summary: The doping of Ni2+ in ZnO/MCM-41 adsorbents has a significant impact on the desulfurization performance, improving its H2S removal capacity but negatively affecting the regeneration performance.
Review
Chemistry, Multidisciplinary
B. A. Abdulkadir, A. A. Jalil, C. K. Cheng, H. D. Setiabudi
Summary: This article reviews porous silica-based scaffolds as an ideal material for improved hydrogen storage. The use of scaffolds significantly increases the storage capacities of metal hydrides, and the structural modifications of the silica-based scaffold into a hollow structure further improve the storage capacity and increase the affinity and confinement ability of the metal hydrides. The enhancement of storage capacity is deemed essential, and structural modifications, such as adopting a hollow-fibrous structure, are recommended.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Biochemistry & Molecular Biology
Rana J. Kadhim, Faris H. Al-Ani, Qusay F. Alsalhy, Alberto Figoli
Summary: This study focuses on optimizing the incorporation of MCM-41 mesoporous material into PES membranes for nanofiltration applications, aiming to reduce membrane fouling and improve energy efficiency. By using optimization techniques, mathematical and statistical analyses, the study identified optimal operating parameters to enhance membrane performance at a larger scale.
Article
Energy & Fuels
Jinyou Fei, Siqi Li, Miao Han, Yugang Su, Hongsheng Jia
Summary: The Prussian blue analogue Co3[Co(CN)6]2 (CoCo-PBA) nanoparticles with three-dimensional cubic structure and uniform size are prepared using the precipitation method. The porous Co9S8/N-doped carbon (Co9S8-NC) nanostructure is fabricated via heat treatment and sulfidation processes using CoCo-PBA as the precursor. The porous Co9S8-NC is mixed with RGO by ball milling to enhance the conductivity and electrocatalytic activity. During the electrochemical hydrogen storage test, the porous Co9S8-NC exhibits higher discharge capacity than conventional Co9S8. The conductivity of Co9S8 is enhanced due to the existence of N-doped carbon. The special porous structure and large specific surface area derived from CoCo-PBA provide more electrochemical active sites. Moreover, the electrochemical properties further improve after RGO modification because of the outstanding characteristics of RGO. A highest discharge capacity of 640.8 mAh/g is obtained for the Co9S8-NC/RGO electrode. Additionally, the cycling stability, HRD and kinetic properties are also enhanced with the addition of RGO. As a consequence, Co9S8-NC/RGO can be regarded as a promising material for electrochemical hydrogen storage.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Hongxia Zhang, Yahang Mou, Shuhua Liu, Dezhi Han, Fang Wang, Liancheng Bing, Guangjian Wang
Summary: In this study, a uniformly dispersed NiPCeOx/MCM-41 catalyst was prepared and shown to exhibit exceptional catalytic performance and durability in ammonia borane hydrolysis.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Kasper T. Moller, Amanda Berger, Mark Paskevicius, Craig E. Buckley
Summary: The addition of Al2O3 and ZrO2 to limestone enhances cyclic stability and reaction kinetics of CO2 desorption and absorption. The formation of CaZrO3 and Ca-Al-O compounds enables over 80% capacity retention over 50 cycles, with rapid reaction kinetics reaching 80% energy storage capacity within 20-30 minutes. The inert nature of the formed compounds prevents sintering and catalyzes the carbonation reaction.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Yu Liu, Mark Paskevicius, Terry D. Humphries, Craig E. Buckley
Summary: This study demonstrates a one-step ball milling method using Mg2N3 as a reducing agent to regenerate sodium borohydride (NaBH4) from NaBO2$4H2O and produce ammonia gas. This simple process can generate two carbon-free hydrogen carriers suitable for energy export from renewable sources.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Energy & Fuels
Arun Mathew, Nima Nadim, Tilak T. Chandratilleke, Mark Paskevicius, Terry D. Humphries, Craig E. Buckley
Summary: This study conducted kinetic and parametric analyses of the carbonation reaction of CaCO3 with Al2O3 as well as the performance of a thermochemical reactor. The results revealed the rapid reaction kinetics of the carbonation reaction and provided a suitable model to explain the growth of carbonation. Numerical analysis showed that increasing the thermal conductivity of the reactor bed and reducing the boundary temperature can greatly improve the reactor's performance.
Article
Energy & Fuels
Yuyao Ma, Wenguang Sun, Xiaoyu Xie, Yi Gao, Xiaoqian Wu, Jiajie Li, Zhengmao Ye, C. E. Buckley, Dehua Dong
Summary: This study demonstrates the successful synthesis of stable Ni nanocatalysts through Y-doping and elevated calcination temperature. The exsolution of metal from fibrous fluorite ceramics represents a promising approach for preparing efficient and stable nanocatalysts.
Article
Electrochemistry
Fatma Abdel Ghafar, Dior Etherton, Shaomin Liu, Craig E. Buckley, Niall J. English, Debbie S. Silvester, M. Veronica Sofianos
Summary: This study presents a method of using cobalt boride nanoflakes as catalysts in electrolyzers for electrochemical water splitting over a wide pH range. By tuning the properties of the nanoflakes, higher catalytic activity and overall stability can be achieved.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Saif ZS. Al Ghafri, Caitlin Revell, Mauricio Di Lorenzo, Gongkui Xiao, Craig E. Buckley, Eric F. May, Michael Johns
Summary: A comprehensive techno-economic assessment demonstrates the viability of a complete hydrogen supply chain based on the transport of liquefied natural gas (LNG), which can significantly reduce CO2 emissions and meet targeted hydrogen supply costs up to 2050. Steam methane reforming (SMR) with carbon capture and storage (CCS) is the most cost-effective and has the lowest CO2 emission intensity among the assessed hydrogen production technologies. Future technologies and strategies can further reduce cost and supply chain emissions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Thomas A. Hales, Kasper T. Moller, Terry D. Humphries, Anita M. D'Angelo, Craig E. Buckley, Mark Paskevicius
Summary: Metal dodecaborate salts are highly tunable ion conductors. By replacing a [B-H] unit with a Pb atom, the crystal structure of alkali metal salts can be modified to enhance ion conductivity. Li2B11H11Pb center dot xH2O exhibits similar superionic conductivity to LiCB11H12, while Na2B11H11Pb center dot xH2O and the potassium salt show lower conductivities. The divalent B11H11Pb2- anion in the dodecaborate cage may contribute to the weaker ion conductivity compared to CB11H12-. However, the insertion of a lead atom shows promise in enabling high ion conductivity in the solid state.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Amanda Berger, Ainee Ibrahim, Craig E. Buckley, Mark Paskevicius
Summary: Due to insufficient resources, high cost, and safety concerns of Li-ion batteries, alternative technologies are being explored. Multivalent metal batteries with solid-state electrolytes show potential for future battery applications. Divalent hydrated closo-monocarborane salts demonstrate improved ionic conductivity and oxidative stability as solid-state electrolytes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Ainee Ibrahim, Mark Paskevicius, Craig E. E. Buckley
Summary: As the demand for renewable energy increases, the development of energy storage and distribution solutions becomes crucial. Hydrogen, with its high gravimetric energy density, is an abundant energy source that can be used in fuel cells to generate electricity, producing only water vapor as a by-product. In order to improve the volumetric energy density in storage tanks for hydrogen storage and refueling stations, hydrogen compression is required. It is suggested that sodium borohydride (NaBH4), a hydrogen carrier, could be used to transport and chemically compress hydrogen for refueling stations, and the study has demonstrated the chemical compression of hydrogen to over 1000 bar using hydrolysis or methanolysis of NaBH4. Interest has been growing in improving the cost of closed-cycle regeneration of NaBH4 as an energy carrier, and a cost and efficiency analysis shows that it may be cost competitive with alternative methods of hydrogen transport.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Chemistry, Physical
Sruthy Balakrishnan, Terry D. Humphries, Mark Paskevicius, Craig E. Buckley
Summary: Calcium hydride has shown potential as a hydrogen storage and thermochemical energy storage material, but its high operating temperature has limited its application and research on its hydrogen sorption thermodynamics. This study provides experimental data on the thermodynamic properties and activation energy of CaH2 in both solid and molten states, filling the gap in the thermodynamics of the Ca-H system for the first time in over 60 years.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Kyran Williamson, Kasper T. T. Moller, Anita M. M. D'Angelo, Terry D. D. Humphries, Mark Paskevicius, Craig E. E. Buckley
Summary: This study introduces a new reactive carbonate composite (RCC) that uses Fe2O3 to destabilize BaCO3 and reduce its decomposition temperature, making it more suitable for thermal energy storage. The RCC demonstrates promising potential for next-generation thermal energy storage due to its low cost and high energy density. The thermodynamic parameters for the reversible CO2 reactions were determined and found to be significant for the RCC.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Lucie Desage, Terry D. Humphries, Mark Paskevicius, Craig. E. Buckley
Summary: Thermochemical energy storage has the potential to enable large-scale storage of renewable energy by integrating with power production facilities. The use of metal hydrides, particularly calcium hydride with the addition of aluminium, allows for lower operating temperatures and excellent working conditions for thermal energy storage.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Chemistry, Physical
Thomas A. Hales, Kasper T. Moller, Terry D. Humphries, Anita M. D'Angelo, Craig E. Buckley, Mark Paskevicius
Summary: Metal substituted dodecaborate anions coupled with alkali metal cations show promise as solid-state ion conductors for batteries. Substituting a B-H unit in an unsubstituted dodecaborate cage with a tin atom produces a stable and polar divalent anion, resulting in improved ion conductivity. Li2B11H11Sn exhibits high ion conductivity at 130 degrees C, similar to LiCB11H12, but achieving high ion conductivity at room temperature is challenging.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Diego H. P. Souza, Terry D. Humphries, Yu Liu, Anton Gradisek, Anita M. D'Angelo, Craig E. Buckley, Mark Paskevicius
Summary: Hydridoborate salts are promising candidates for solid-state electrolytes in the development of solid-state batteries. Different hydrated LiB11H14 samples show variations in ionic conductivity and oxidative stability. The addition of an ionic liquid or liquid electrolyte at the interface improves the contact between the solid-state electrolyte and the lithium electrode.
SUSTAINABLE ENERGY & FUELS
(2022)
Article
Chemistry, Inorganic & Nuclear
Diego H. P. Souza, Anita M. D'Angelo, Terry D. Humphries, Craig E. Buckley, Mark Paskevicius
Summary: Solid-state sodium batteries are gaining attention for their improved safety, high energy density, and low cost compared to current lithium-ion batteries. Research on new materials like sodium-boranes as solid-state electrolytes is crucial for future battery applications.
DALTON TRANSACTIONS
(2022)
