Article
Nanoscience & Nanotechnology
Maximiliano Jesus Jara Fornerod, Alberto Alvarez-Fernandez, Eric R. Williams, Maximilian W. A. Skoda, Beatriz Prieto-Simon, Nicolas H. Voelcker, Morgan Stefik, Marc-Olivier Coppens, Stefan Guldin
Summary: Mesoporous thin films are widely used for their high surface area and efficient mass and charge transport properties. A two-step calcination process can reduce film contraction and enhance structural control, resulting in mesoporous films with higher porosity and larger pores. These films exhibit favorable characteristics for mass transport of large molecules.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Adil Alshoaibi, Shumaila Islam
Summary: Sol-gel-based titania nanoparticles, Silica-titania nanocomposite, and zinc supported silica-titania nanocomposites were synthesized at low temperature. The study showed that zinc nanoparticles were homogeneously distributed in the silica-titania nanocomposite, and the doping of zinc enhanced the photocatalytic activity of the material.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Elvira Mahu, Cristina Giorgiana Coromelci, Doina Lutic, Iuliean Vasile Asaftei, Liviu Sacarescu, Valeria Harabagiu, Maria Ignat
Summary: This study prepared a mesoporous titania structure using ultrasound-assisted sol-gel technique, which was found to increase the crystallinity of titania samples and affect their photocatalytic activity. The research also investigated the influence of surfactant/titania precursor weight ratio on the structural and textural properties of titania.
Article
Materials Science, Ceramics
Ruohong Sui, John H. Jacobs, Nancy Chou, Connor E. Deering, Christopher B. Lavery, Robert A. Marriott
Summary: Both affordability and stability are crucial for commercial-scale production and industrial applications of TiO2. This study investigated a facile sol-gel process using titanyl sulfate as a feedstock, which resulted in the stable formation of anatase phase with bimodal mesopores and macropores. These unique nanostructures make it suitable for catalysis and filtration applications.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Shadpour Mallakpour, Mina Naghdi
Summary: A bone scaffold was fabricated using a hybrid of TiO2@LDH to leverage the advantages of both nanostructures, with LDH providing a suitable bed for TiO2 nanoparticles and Alg embedding them for stability. The scaffold showed excellent biomineralization and antibacterial properties, making it a promising candidate for bone tissue engineering.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Siqi Cheng, Wenna Li, Shunhua Xiao, Shuai Zheng, Zhuo Chen, Lizhen Hu, Qing Zhu, Bin Huang, Qingquan Liu, Quanqi Chen
Summary: The calcination temperature significantly affects the physical and electrochemical performance of Na4MnV(PO4)(3)/C composites. The surface area, carbon disorder, Na+ diffusion coefficients, and electrochemical performance are greatly influenced by the calcination temperature. Additionally, the optimal calcination temperature for the composites is found to be 750 degrees C, resulting in the highest capacity, best rate capability, and cyclability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Inorganic & Nuclear
Ai Ling Pang, Muhammad Saqlain Iqbal, Nik Akmar Rejab, Ujjwal Pal, Muhammad Aniq Shazni Mohammad Haniff, Ahmad Ghadafi Ismail, Azrul Azlan Hamzah, Mohsen Ahmadipour
Summary: The study focuses on the influence of calcination temperature on the features and photocatalytic performance of sol-gel synthesized CaCu3Ti4O12 nanoparticles. Characterization of the nanoparticles was done using various methods to examine their structure, composition, morphology, and optical properties. Photodegradation of a cationic dye was used to evaluate the photocatalytic performance. Results showed that calcination improved the crystallinity and reduced the optical bandgap energy of the nanoparticles, leading to enhanced photocatalytic activity. The sample calcined at 900 degrees C demonstrated the highest photodegradation efficiency and excellent recyclability.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Shumaila Islam, Adil Alshoaibi, Hazri Bakhtiar, Kawther Alamer, Javed Mazher, Zakia Hassan Alhashem, Mohammad Rafe Hatshan, Shrouq H. Aleithan
Summary: Due to polluted water remediation, semiconductor nano photocatalysis has been considered as a promising approach to address the issue. However, the slow reaction rates and high electron-hole recombination have hindered their large-scale applications. In this study, heterogeneous nano photocatalysts, such as sol-gel-based mesoporous titania nanoparticles (TNPs) and silica-titania nanocomposite (STNC) supported with CdTe (CdTe/STNC), were synthesized for photocatalytic applications. The CdTe/STNC catalyst exhibited a large surface area and pore size distribution, and demonstrated high photocatalytic activity with methylene blue degradation of 95% after 180 min of ultraviolet radiation.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Materials Science, Ceramics
Amun Amri, Yola Bertilsya Hendri, Edy Saputra, Desi Heltina, Chun-Yang Yin, M. Mahbubur Rahman, Manickam Minakshi, Nicholas Mondinos, Zhong-Tao Jiang
Summary: The formation kinetics of LiFePO4 Olivine synthesized through sol-gel route was studied using a non-isothermal approach. The results showed that temperature played a crucial role in the synthesis of LiFePO4, with an optimal calcination temperature of 700°C yielding LiFePO4 Olivine with high crystallinity, better lattice parameters, and phase purity.
CERAMICS INTERNATIONAL
(2022)
Review
Chemistry, Physical
Daniel Alves Barcelos, Maria Clara Goncalves
Summary: Visible-light-photoactive titania micro- or nanoparticles have shown great potential in various industrial applications, especially in environmental remediation. The sol-gel method, with its simplicity, versatility, and green chemistry approach, has been successfully employed for synthesizing crystalline and amorphous TiO2 micro- and nanoparticles. This short review aims to discuss the recent advancements in visible-light-photoactive titania-based nanoparticles for environmental remediation. Co-doping of titania, titania composite design, and the use of amorphous networks have been the most commonly used strategies to achieve this goal. Finally, predictions about the future developments in these fields are provided.
Article
Materials Science, Multidisciplinary
Jin He, Wei Guo, Peixi Cong, Jeff Armstrong, Rihong Li, Shuaipeng Wang, Da Shi, Andrew M. Beale, Raed Abu-Reziq, David Avnir
Summary: Mesoporous AlPO4 materials with high thermal and chemical stability have attracted attention in catalysis. The study focused on the pure stoichiometry high surface area mesoporous AlPO4 (mAlPO4) and its loading with Pd and Rh nanoparticles (NPs). The doped materials were characterized using various analytical methods and their catalytic activities were evaluated. mAlPO4 exhibited excellent acid-catalyzed cycloaddition reaction, while mAlPO4 loaded with Pd NPs showed efficient deoxygenation reactions and mAlPO4 loaded with Rh NPs exhibited high selectivity in hydrogenation reactions.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Fancong Zeng, Yingrui Sui, Meiling Ma, Na Zhao, Tianyue Wang, Zhanwu Wang, Lili Yang, Fengyou Wang, Huanan Li, Bin Yao
Summary: CNZTSSe films and solar cells were successfully prepared using a simple sol-gel method combined with the selenization process. The effects of selenization temperature on the crystallinity and performance of the films were studied. It was found that nickel doping improved the crystallinity, while selenium doping adjusted the optical band gap of the films.
Article
Materials Science, Multidisciplinary
Adil Alshoaibi, Shumaila Islam
Summary: The opto-chemical sensing matrices, D-SNIPs, D-TNIPs, and D-STNPs, exhibit thermally stable, large surface area, and different refractive indices. The prepared sensors show a linear response, non-leachability, stability towards high pH 12, and fast time response, making them suitable for practical pH sensing applications.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Chemistry, Multidisciplinary
Marcus Einert, Arslan Waheed, Dominik C. Moritz, Stefan Lauterbach, Anna Kundmann, Sahar Daemi, Helmut Schlaad, Frank E. Osterloh, Jan P. Hofmann
Summary: Metal oxide-based photoelectrodes use nanostructures to increase solid-liquid interface area, reducing charge transport distances and increasing photocurrent. However, the effect of surface order on photocurrent and carrier recombination has not been well studied. Mesoporous CuFe2O4 (CFO) thin film photoanodes with controlled pore order and geometry were prepared. The non-ordered CFO showed the highest photocurrent density for sulfite oxidation but the least for water oxidation, while the ordered CFO showed the best photoelectrochemical water oxidation performance.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Physical
Zhihao Li, Zhenhan Wang, Chunmei Jia, Zhi Wan, Chongyang Zhi, Can Li, Meihe Zhang, Chao Zhang, Zhen Li
Summary: This article proposes a new method for the deposition of SnO2 electron transport layers (ETLs) at room temperature, which is suitable for the fabrication of flexible solar cells. The experiments show that SnO2 films treated with amine gases are smoother and more compact compared to those treated with thermal annealing. A base-catalyzed densification mechanism is proposed to explain the experimental results. The flexible solar cells with the annealing-free SnO2 ETLs achieve high power conversion efficiencies and excellent flexibility.
Article
Energy & Fuels
Siddharth Sradhasagar, Omkar Subhasish Khuntia, Srikanta Biswal, Sougat Purohit, Amritendu Roy
Summary: In this study, machine learning models were developed to predict the bandgap and its character of double perovskite materials, with LGBMRegressor and XGBClassifier models identified as the best predictors. These models were further employed to predict the bandgap of novel bismuth-based transition metal oxide double perovskites, showing high accuracy, especially in the range of 1.2-1.8 eV.
Article
Energy & Fuels
Wei Shuai, Haoran Xu, Baoyang Luo, Yihui Huang, Dong Chen, Peiwang Zhu, Gang Xiao
Summary: In this study, a hybrid model based on numerical simulation and deep learning is proposed for the optimization and operation of solar receivers. By applying the model to different application scenarios and considering multiple performance objectives, small errors are achieved and optimal structure parameters and heliostat scales are identified. This approach is not only applicable to gas turbines but also heating systems.
Article
Energy & Fuels
Mubashar Ali, Zunaira Bibi, M. W. Younis, Muhammad Mubashir, Muqaddas Iqbal, Muhammad Usman Ali, Muhammad Asif Iqbal
Summary: This study investigates the structural, mechanical, and optoelectronic properties of the BaCuF3 fluoroperovskite using the first-principles modelling approach. The stability and characteristics of different cubic structures of BaCuF3 are evaluated, and the alpha-BaCuF3 and beta-BaCuF3 compounds are found to be mechanically stable with favorable optical properties for solar cells and high-frequency UV applications.
Article
Energy & Fuels
Dong Le Khac, Shahariar Chowdhury, Asmaa Soheil Najm, Montri Luengchavanon, Araa mebdir Holi, Mohammad Shah Jamal, Chin Hua Chia, Kuaanan Techato, Vidhya Selvanathan
Summary: A novel recycling system is proposed in this study to decompose and reclaim the constituent materials of organic-inorganic perovskite solar cells (PSCs). By utilizing a one-step solution process extraction approach, the chemical composition of each layer is successfully preserved, enabling their potential reuse. The proposed recycling technique helps mitigate pollution risks, minimize waste generation, and reduce recycling costs.
Article
Energy & Fuels
Peijie Lin, Feng Guo, Xiaoyang Lu, Qianying Zheng, Shuying Cheng, Yaohai Lin, Zhicong Chen, Lijun Wu, Zhuang Qian
Summary: This paper proposes an open-set fault diagnosis model for PV arrays based on 1D VoVNet-SVDD. The model accurately diagnoses various types of faults and is capable of identifying unknown fault types.
