Article
Materials Science, Ceramics
Xinkun Liu, Ying Dai, Xinmei Pei, Wen Chen
Summary: Lead-free Sr-doped BCZT thin films were successfully prepared and their structure, electric properties and ECE were investigated. The results show that the phase transition temperatures of the films change with increasing Sr content and merge at room temperature. The BCZT-0.05Sr film exhibits a giant ECE near room temperature.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Multidisciplinary
Ugur Caligulu, Nida Darcan, Haluk Kejanli
Summary: This study investigated the impact of Calcium (Ca) and Manganese (Mn) dopants on the optical and surface properties of Titanium dioxide (TiO2) nanomaterial. The results showed that the doping ratio of Mn affected the morphological properties of TiO2 and increased the optical band gap of the samples. The produced samples have potential applications in transparent conductive electrode applications, optoelectronic devices, and sensor production.
ENGINEERING SCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL-JESTECH
(2021)
Article
Materials Science, Ceramics
Xinxing Hao, Zhe Zhu, Zhonghua Yao, Hua Hao, Minghe Cao, Hanxing Liu
Summary: This study investigates the effect of polarization difference on the energy storage density of dielectric materials and finds that excess Ti can optimize the dielectric characteristics. The study also highlights the importance of polarization difference in achieving high energy storage density in electrostatic dielectric capacitors.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Suna Avcioglu, Figen Kaya, Cengiz Kaya
Summary: A novel non-catalytic sol-gel route was used to synthesize nano/micro boron carbide fibers by manipulating the growth kinetics of boron carbide particles through in-situ decoration with boric acid crystals during thermal decomposition. This approach successfully produced highly crystalline boron carbide particles and various morphologies of boron carbide, such as rhomboid-plate, nanobelt, and fiber. By tailoring the structure of the preceramic precursor, the formation of boron carbide fiber was increased while polyhedral-equiaxed particles were decreased in the final products.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Bongho Jang, Jaewon Jang, Jae Eun Jang, Hyuk-Jun Kwon
Summary: This study fabricated high-performance SnO2 thin-film transistors (TFTs) at temperatures below 300 degrees C using the combustion-assisted sol-gel method. The results showed that the combustion-assisted solution process significantly increased the field-effect mobility of SnO2 TFTs compared to the conventional solution process, potentially enabling low-cost solution-processed electronics.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
M. Chakraborty, E. S. Kadir, R. N. Gayen
Summary: By varying the graphene oxide (GO) content, the modification of UV photo-response characteristics in transparent titanium dioxide-graphene oxide (TiO2-GO) nanocomposite thin films was studied. The presence of GO improves the optical band gap of TiO2 without affecting its transparency. The fabricated metal-semiconductor (MS) Schottky junctions with TiO2-GO nanocomposite thin films show rectifying behavior and improved UV response characteristics.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Yanjiang Xie, Hua Hao, Zhengtao Huang, Shuo Zhang, Minghe Cao, Zhonghua Yao, Hanxing Liu
Summary: In this study, Fe-doped 0.94BNT-0.06BT ferroelectric thin films were prepared and demonstrated improved dielectric and energy-storage performances. The 0.96BNT-0.04BT-Fe-2 thin film exhibited the best properties among the samples studied.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Jingwei Zhao, Zhonghua Yao, Zhijian Wang, Ning Zhang, Hua Hao, Minghe Cao, Hanxing Liu
Summary: By employing microstructural engineering, an optimized lead-free Zr-modified BiMg0.5Zr0.04Tix-0.04O3 composition was developed to enhance energy storage behavior, achieving superior energy properties and high efficiency. Rapid annealing and excess Ti source doping effectively increased polarization and dielectric breakdown levels.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Renzhong Xue, Liuyang Zhao, Siyuan Chen, Hongxuan Chen, Mengru Cui, Xintao Bai, Tao Li, Dewei Liu, Haiyang Dai
Summary: The effects of A-site transition from Ca2+ to Cd2+ on the microstructure, morphology, and electrical properties of Ca(1-x)CdxCu(3)Ti(4)O(12) thin films were investigated. The films exhibited smooth and compact surfaces without cracks. The transition from Ca2+ to Cd2+ resulted in changes in grain size and electrical properties. In particular, the simultaneous occupancy of A sites by Ca2+ and Cd2+ improved the dielectric and nonlinear properties of Ca1-xCdxCu3Ti4O12 films.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Huiting Sui, Huajun Sun, Chao Yan, Shibing Xiao, Ye Wang, Xiaofang Liu, Duanping Huang
Summary: Lead-free thin films with excellent high recoverable energy density and efficiency were fabricated via the sol-gel process, exploring the effects of key parameters on their performance. The highest W-rec and eta were achieved for specific multilayer structures, showing considerable potential for lead-free energy storage applications.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Jialin Sun, Jun Zhao, Yuan Chen, Li Wang, Xialun Yun, Zhifu Huang
Summary: This study successfully developed quaternary nanocomposites with exceptionally high toughness and hardness by constructing hierarchical structures spanning several scales. A new concept of multi-stage toughening mechanism was proposed, including laminated structure toughening, two-dimensional graphene toughening, and multi-component nanoparticles toughening. This low-cost toughening mechanism constitutes an important step forward in developing advanced ceramic matrix composites with high toughness and hardness.
MATERIALS TODAY PHYSICS
(2022)
Article
Electrochemistry
Pei-Te Lin, Chih-Ying Yu, Sin-Huei Ho, Shiuan-Wei Pan, Jyun-Siang Jhang, Yi-Xun Zhang, Yo-Lun Zhang, Tian-Tsz Hsieh, Hao-Chien Wang, Wen-Jeng Hsueh, Chun-Ying Huang
Summary: The photochemical activation process is a promising way to operate metal oxide gas sensors at room temperature, but currently limited to n-type semiconductors. In this study, a highly stable p-type copper gallium oxide (CuGaO2) gas sensor was fabricated through the facile sol-gel process. It can detect O-3 gas at room temperature and its gas response can be further enhanced by UV activation, achieving a highest gas response of 7.12 to 5 ppm O-3 gas at a UV intensity of 10 mW cm(-2). Additionally, the CuGaO2 sensor exhibits excellent long-term stability with only approximately 3% degradation over 90 days.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Lu He, Dietrich R. T. Zahn, Teresa I. I. Madeira
Summary: Titanium dioxide (TiO2) thin films have photocatalytic properties and can be used for recycling and maintenance. Factors affecting their performance include nanocrystalline size, surface morphology, and phase composition, which need to be better studied and correlated.
Article
Chemistry, Physical
Xia-Li Liang, Jian-Qing Dai
Summary: BFMO thin films were successfully deposited on FTO/glass substrates via sol-gel technique, with Mn doping showing significant enhancement in properties compared to pure BFO samples. The Mn doping-induced changes in structure, grain size reduction, and oxygen vacancies were identified as underlying mechanisms for the improved performance of BFMO films, making them promising for ferroelectric photovoltaic device applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Tengyu He, David G. Bradley, Jiajing Zhou, Alec Jorns, Yash Mantri, John Hanna, Jesse Jokerst
Summary: Phosphate-based glasses, especially in micro/nanoparticle form, show excellent biodegradability and biocompatibility, making them promising for applications in drug delivery, bioimaging, degradable implants, and tissue engineering. The synthesis of calcium phosphate micro/nanoparticles (CPPs) using sol-gel and electrospray methods allows for control of size and morphology, with an average diameter ranging from 345-952 nm. The hydration process of CPPs in neutral aqueous media leads to significant increase in size and volume, with potential applications in tissue ablation and cell destruction.
ACS APPLIED NANO MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Satyajit Shukla, Mehmet A. Oturan
ENVIRONMENTAL CHEMISTRY LETTERS
(2015)
Article
Materials Science, Ceramics
Manu Jose, Mahitha Kumari, Remya Karunakaran, Satyajit Shukla
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2015)
Article
Environmental Sciences
Harsha Narayani, Manu Jose, K. Sriram, Satyajit Shukla
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2018)
Article
Engineering, Chemical
Harsha Narayani, Rimesh Augustine, S. Sumi, Manu Jose, K. Deepa Nair, M. Samsuddin, Halan Prakash, Satyajit Shukla
SEPARATION AND PURIFICATION TECHNOLOGY
(2017)
Article
Chemistry, Physical
Harsha Narayani, Hajara Arayapurath, Satyajit Shukla
Article
Materials Science, Ceramics
Babitha K. Babu, Jeena Vadakke Purayil, Hareesh Padinhattatyil, Satyajit Shukla, Krishna Gopakumar Warrier
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2013)
Article
Engineering, Environmental
P. Hareesh, K. B. Babitha, S. Shukla
JOURNAL OF HAZARDOUS MATERIALS
(2012)
Article
Chemistry, Multidisciplinary
N. Harsha, K. R. Ranya, K. B. Babitha, S. Shukla, S. Biju, M. L. P. Reddy, K. G. K. Warrier
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
(2011)
Article
Chemistry, Multidisciplinary
Hareesh Padinhattayil, Rimesh Augustine, Satyajit Shukla
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
(2013)
Article
Nanoscience & Nanotechnology
Harsha Narayani, Hajara Arayapurath, Satyajit Shukla
SCIENCE OF ADVANCED MATERIALS
(2013)
Article
Chemistry, Physical
Sriram Krishnamoorthy, Faten Ajala, Shahansha M. Mohammed, Adersh Asok, Satyajit Shukla
Summary: The study demonstrated the degradation of industrial azo reactive dyes by activating persulfate with Flyash (FA)-Fe3O4, FA-Fe3O4-Ag, and FA-Fe3O4-Ag-Cu magnetic composites. The FA-Fe3O4-Ag catalyst showed the highest catalytic activity due to its largest adsorption capacity and catalyst regeneration kinetics, involving a pore-filling sorption process and the generation of SO4- and (OH)-O-center dot.
APPLIED SURFACE SCIENCE
(2021)
Article
Environmental Sciences
Shahansha Mohammed, Jameelammal Shajeelammal, Adersh Asok, Satyajit Shukla
Summary: Regeneration of hydrogen titanate nanotubes (HTN, H2Ti3O7) has been achieved via hydrothermal synthesis and thermal activation of persulfate anion (PS, S2O82-). Optimization of the regeneration process for HTN under autoclave and pulsed ultrasound (US) cavitation conditions by adjusting the initial concentration of PS and regeneration temperature has been successfully demonstrated, leading to efficient methylene blue (MB) adsorption.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Jameelammal Shajeelammal, Shahansha Mohammed, Adersh Asok, Satyajit Shukla
Summary: This study focuses on enhancing the efficiency of dye removal by modifying the ultrasound cavitation process and using hydrogen titanate nanotubes as a sonocatalyst. The optimal conditions for 100% dye decomposition were determined, and the effectiveness of the modified process was demonstrated for both aqueous solutions and textile effluents.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Jameelammal Shajeelammal, Shahansha Mohammed, K. P. Prathish, A. Jeeva, Adersh Asok, Satyajit Shukla
Summary: This study investigates the replacement of the stage-1 facility at the common effluent treatment plant of KINFRA in Kannur, Kerala, India. The stand-alone ozonation (O3) process proves to be the most suitable method, achieving 90% COD removal.
JOURNAL OF HAZARDOUS MATERIALS ADVANCES
(2022)
Article
Engineering, Environmental
Manu Jose, N. Harsha, K. Suhailath, A. Peer Mohamed, Satyajit Shukla
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2016)