Article
Engineering, Environmental
Jawer David Acuna-Bedoya, E. Luevano-Hipolito, Erika Iveth Cedillo-Gonzalez, Laura Patricia Dominguez-Jaimes, Alonso Martinez Hurtado, Juan Manuel Hernandez-Lopez
Summary: This study proposes a photocatalytic degradation method using visible light irradiation to mitigate the pollution caused by polystyrene nanoplastics. By using immobilized copper oxide semiconductors, the researchers achieved significant degradation and mineralization of PS-NPs, showing promising results in the removal of these pollutants.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Zhen Sun, Junxiang Wang, Sen Lu, Guan Zhang
Summary: Solar reforming of cellulosic biomass into hydrogen is a promising approach for sustainable utilization of biomass waste and renewable energy development. This study proposes a strategy that combines enzymatic hydrolysis of cellulose with photocatalytic H2 production, and synthesizes a high-performance titanium dioxide photocatalyst. By optimizing the conditions for enzymatic hydrolysis and photocatalytic reaction, and using the enzymatic depolymerized products as sacrificial agents, efficient hydrogen production from water is achieved.
Article
Chemistry, Physical
Karan Gulati, Mateusz Czerwinski, Marta Michalska-Domanska, Ruben Del Olmo Martinez
Summary: This review discusses and details the influence of electrolyte aging in Ti anodization on the fabrication of controlled nanostructures, as well as its impact on the morphology, chemistry, stability, and application-specific performance of nanostructures.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Zhaoyi Li, Zhen Sun, Guan Zhang
Summary: Combining enzymatic catalysis and heterogeneous photocatalysis can convert solar energy into hydrogen, which is attractive for sustainable biomass waste utilization and renewable energy development. By developing a low-cost Cu0.5Ni0.5-TiO2 photocatalyst, remarkable hydrogen production performance comparable with Pt-TiO2 under UV light irradiation has been achieved. Finally, the integration of enzymatic catalysis and photocatalysis has been optimized to improve hydrogen production efficiency.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Multidisciplinary Sciences
Ana C. Marques, Mario Vale, Daniel Vicente, Murielle Schreck, Elena Tervoort, Markus Niederberger
Summary: In this study, inorganic silica microspheres are utilized as a platform for designing photocatalytic systems for wastewater treatment through solar-driven photocatalysis. The photocatalytically active microspheres are prepared by wet impregnation with TiO2 nanoparticles, leading to an increase in specific surface area and retention of macroporosity. The microspheres exhibit high photocatalytic activity and can be easily removed from the reaction medium, addressing typical challenges associated with TiO2 nanoparticles photocatalysts.
Article
Materials Science, Coatings & Films
Ika Maria Ulfah, Diah Ayu Fitriani, Siti Amalina Azahra, Aghni Ulma Saudi, Muhammad Kozin, Razie Hanafi, Prabowo Puranto, Bambang Sugeng, Yudi Nugraha Thaha, Aga Ridhova, Muhammad Prisla Kamil
Summary: Titanium dioxide nanotubes (TNTs) grown on the surface of titanium implants play a significant role in preventing tissue infection and implant failure. This study investigates the role of different counter electrodes in the formation of TNTs with varying shapes and surface properties. The use of platinum and graphite cathodes results in circular TNTs, while stainless steel cathode leads to hexagonal-shaped tubes with particle debris on the surface. The surface microstructure of TNTs affects their roughness, hydrophilicity, and ability to facilitate the growth of bone-forming apatite during osseointegration.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Environmental Sciences
Anchal Rana, Anita Sudhaik, Pankaj Raizada, Van-Huy Nguyen, Changlei Xia, Aftab Aslam Parwaz Khan, Sourbh Thakur, Phuong Nguyen-Tri, Chinh Chien Nguyen, Soo Young Kim, Quyet Van Le, Pardeep Singh
Summary: Floating photocatalysis is an effective technique for wastewater treatment with good photocatalytic activity. The use of g-C3N4-based floating photocatalysts has gained attention due to their unique properties and high performance. Researchers are focused on designing and manufacturing floating nanocomposite photocatalytic materials to achieve efficient pollutant degradation and maximize solar light absorption.
Article
Chemistry, Physical
Bowen Wang, Anabel E. Lanterna, Juan C. Scaiano
Summary: The study reveals significant differences in the desorption kinetics of probe molecules depending on the chemical nature of the catalysts. Palladium catalysts exhibit faster conversion rates from alkenes to alkanes compared to molybdenum/cobalt catalysts, indicating differences in selectivity between the two.
Article
Materials Science, Multidisciplinary
Arshid Mir, M. A. Shah
Summary: In this study, reduced TiO2 nanotubes were fabricated using electrochemical anodization technique followed by hydrazine treatment to introduce oxygen vacancies and improve the efficiency of water splitting. The results showed that the introduction of Ti3+ states can reduce the band gap and increase the photocurrent density without affecting the photostability.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Materials Science, Ceramics
Petronela Pascariu, Corneliu Cojocaru, Mihaela Homocianu, Petrisor Samoila, Cosmin Romanitan, Djourelov Nikolay
Summary: A series of tin (Sn)-doped titania (TiO2) composites were prepared by electrospinning and calcination. The effect of dopant amounts and calcination temperatures on the composition, morphology, and photocatalytic activity of the composites was evaluated. The ([1.5%]Sn:TiO2) composite sintered at 500°C showed remarkable photocatalytic activity with a removal efficiency of about 100% and a rate constant of 9.685 x 10-2 min-1. Structural investigations were conducted to explain the photocatalytic activity towards water decontamination.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Yuan Lu, Bingxuan Huang, Xiaoling Xu, Yansheng Liu, Andi Cheng, Junwei Hou
Summary: A green Fe-doped TiO2 photocatalyst was successfully synthesized on Ti mesh through chemical impregnation and anodization, exhibiting excellent magnetic properties and high visible light absorption intensity, resulting in significant photocatalytic effects under visible light irradiation.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Keng Ho Cheung, Moreica Beatrice Pabbruwe, Wen-Fan Chen, Pramod Koshy, Charles Christopher Sorrell
Summary: This study investigated the fabrication and performance of TiO2 coatings on Ti6Al4V through anodization in phosphoric or sulfuric acid, followed by annealing. The results highlighted the significant impact of acid oxidation strength on coating properties, as well as the importance of pore structure on photocatalytic activity.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Ranjana Verma, Jay Singh, S. K. Samdarshi, Anchal Srivastava
Summary: A fundamental understanding of the dynamism of charge-transfer characteristic at different phases and pH combinations is essential for the development of highly efficient light harvesting photocatalysts. This study explores the phase modulation at different pH values and its relationship with photocatalytic activities, demonstrating that pH control can be used to manipulate the phase transition and size of TiO2 nanoparticles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Biotechnology & Applied Microbiology
Yiru Fu, Zheng Jing, Tao Chen, Xinxin Xu, Xu Wang, Mingxing Ren, Yanqiu Wu, Tianli Wu, Yuzhou Li, He Zhang, Ping Ji, Sheng Yang
Summary: The inflammatory immune environment around titanium bone implants plays a crucial role in osseointegration, and nanotopography on implant surfaces can modulate the immune microenvironment. This study demonstrates that inhibition of the nuclear envelope protein lamin A/C by titania nanotubes reduces macrophage inflammatory response. It further reveals that lamin A/C-mediated nuclear mechanotransduction controls macrophage inflammatory response.
JOURNAL OF NANOBIOTECHNOLOGY
(2023)
Article
Chemistry, Physical
Amanda Chen, Wen-Fan Chen, Tina Majidi, Bernadette Pudadera, Armand Atanacio, Madhura Manohar, Leigh R. Sheppard, Rong Liu, Charles Christopher Sorrell, Pramod Koshy
Summary: Uniformly codoped anatase TiO2 thin films with equal Mo and Cr concentrations were fabricated using sol-gel spin coating and ion implantation. Both methods did not result in homogeneous dopant distributions, leading to decreased crystallinities and partial amorphisation. The photocatalytic performances of the films were poor and correlated with the band gap, indicating the effects of different doping methods on performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Tianyu Chen, Zhibin Lu, Guangjin Zeng, Yongmin Xie, Jie Xiao, Zhifeng Xu
Summary: The study introduces a high-performance LSGM electrolyte-supported tubular DC-SOFC stack for portable applications, which shows great potential in developing into high-performing, efficient, and environmentally friendly portable power sources for distributed applications.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Wenbin Tong, Yili Chen, Shijie Gong, Shaokun Zhu, Jie Tian, Jiaqian Qin, Wenyong Chen, Shuanghong Chen
Summary: In this study, a three-dimensional porous NiO interface layer with enhanced anode dynamics is fabricated, forming a Schottky contact with the zinc substrate, allowing rapid and uniform zinc plating both inside and below the interface layer. The resulting NiO@Zn exhibits exceptional stability and high capacity retention.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yafeng Bai, Kaidi Li, Liying Wang, Yang Gao, Xuesong Li, Xijia Yang, Wei Lu
Summary: In this study, a flexible zinc ion supercapacitor with gel electrolytes, porous alpha-MnO2@reduced graphene oxide cathode, and activated carbon/carbon cloth anode was developed. The device exhibits excellent electrochemical performance and stability, even at low temperatures, with a high cycle retention rate after 5000 cycles.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Anmol Jnawali, Matt D. R. Kok, Francesco Iacoviello, Daniel J. L. Brett, Paul R. Shearing
Summary: This article presents the results of a systematic study on the electrochemical performance and mechanical changes in two types of commercial batteries with different anode chemistry. The study reveals that the swelling of anode layers in batteries with silicon-based components causes deformations in the jelly roll structure, but the presence of a small percentage of silicon does not significantly impact the cycling performance of the cells within the relevant state-of-health range for electric vehicles (EVs). The research suggests that there is room for improving the cell capacities by increasing the silicon loading in composite anodes to meet the increasing demands on EVs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yohandys A. Zulueta, My Phuong Pham-Ho, Minh Tho Nguyen
Summary: Advanced atomistic simulations were used to study ion transport in the Na- and K-doped lithium disilicate Li2Si2O5. The results showed that Na and K doping significantly enhanced Li ion diffusion and conduction in the material.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Zongying Han, Hui Dong, Yanru Yang, Hao Yu, Zhibin Yang
Summary: An efficient phase inversion-impregnation approach is developed to fabricate BaO-decorated Ni8 mol% YSZ anode-supported tubular solid oxide fuel cells (SOFCs) with anti-coking properties. BaO nanoislands are successfully introduced inside the Ni-YSZ anode, leading to higher peak power densities and improved stability in methane fuel. Density functional theory calculations suggest that the loading of BaO nanoislands facilitates carbon elimination by capturing and dissociating H2O molecules to generate OH.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Suresh Mamidi, Dan Na, Baeksang Yoon, Henu Sharma, Anil D. Pathak, Kisor Kumar Sahu, Dae Young Lee, Cheul-Ro Lee, Inseok Seo
Summary: Li-CO2 batteries, which utilize CO2 and have a high energy density, are hindered in practical applications due to slow kinetics and safety hazards. This study introduces a stable and highly conductive ceramic-based solid electrolyte and a metal-organic framework catalyst to improve the safety and performance of Li-CO2 batteries. The optimized Li-CO2 cell shows outstanding specific capacity and cycle life, and the post-cycling analysis reveals the degradation mechanism of the electrodes. First-principles calculations based on density functional theory are also performed to understand the interactions between the catalyst and the host electrode. This research demonstrates the potential of MOF cathode catalyst for stable operation in Li-CO2 batteries.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Ganghua Xiang, Zhihuan Qiu, Huilong Fei, Zhigang Liu, Shuangfeng Yin, Yuen Wu
Summary: In this study, a CeFeOx-supported Pt single atoms and subnanometric clusters catalyst was developed, which exhibits enhanced catalytic activity and stability for the preferential oxidation of CO in H2-rich stream through synergistic effect.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Dimitrios Chatzogiannakis, Marcus Fehse, Maria Angeles Cabanero, Natalia Romano, Ashley Black, Damien Saurel, M. Rosa Palacin, Montse Casas-Cabanas
Summary: By coupling electrochemical testing to operando synchrotron based X-ray absorption and powder diffraction experiments, blended positive electrodes consisting of LiMn2O4 spinel (LMO) and layered LiNi0.5Mn0.3Co0.2O2 (NMC) were studied to understand their redox mechanism. It was found that blending NMC with LMO can enhance energy density at high rates, with the blend containing 25% LMO showing the best performance. Testing with a special electrochemical setup revealed that the effective current load on each blend component can vary significantly from the nominal rate and also changes with SoC. Operando studies allowed monitoring of the oxidation state evolution and changes in crystal structure, in line with the expected behavior of individual components considering their electrochemical current loads.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Chiara Cementon, Daniel Dewar, Thrinathreddy Ramireddy, Michael Brennan, Alexey M. Glushenkov
Summary: This Perspective discusses the specific power and power density of lithium-ion capacitors, highlighting the fact that their power characteristics are often underestimated. Through analysis, it is found that lithium-ion capacitors can usually achieve power densities superior to electrochemical supercapacitors, making them excellent alternatives to supercapacitors.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Weihao Wang, Hao Yu, Li Ma, Youquan Zhang, Yuejiao Chen, Libao Chen, Guichao Kuang, Liangjun Zhou, Weifeng Wei
Summary: This study achieved an improved electrolyte with excellent low-temperature and high-voltage performance by regulating the Li+ solvation structure and highly concentrating it. The electrolyte exhibited outstanding oxidation potential and high ionic conductivity under low temperature and high voltage conditions, providing a promising approach for the practical application of high-voltage LIBs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Martin Bures, Dan Gotz, Jiri Charvat, Milos Svoboda, Jaromir Pocedic, Juraj Kosek, Alexandr Zubov, Petr Mazur
Summary: Vanadium redox flow battery is a promising energy storage solution with long-term durability, non-flammability, and high overall efficiency. Researchers have developed a mathematical model to simulate the charge-discharge cycling of the battery, and found that hydraulic connection of electrolyte tanks is the most effective strategy to reduce capacity losses, achieving a 69% reduction.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
M. Rodriguez-Gomez, J. Campo, A. Orera, F. de La Fuente, J. Valenciano, H. Fricke, D. S. Hussey, Y. Chen, D. Yu, K. An, A. Larrea
Summary: In this study, we analysed the operando performance of industrial lead cells using neutron diffraction experiments. The experiments revealed the evolution of different phases in the positive electrode, showed significant inhomogeneity of phase distribution inside the electrode, and estimated the energy efficiency of the cells.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Jiawei Liu, Chenpeng Wang, Yue Yao, Hao Ye, Yinglong Liu, Yingli Liu, Xiaoru Xu, Zhicong Chen, Huazheng Yang, Gang Wu, Libin Lei, Chao Wang, Bo Liang
Summary: The study focuses on utilizing double conductive Ni-pads as anode collectors in micro-tubular solid oxide fuel cells. The simulation results show excellent performance and stability of DCNPs, and also highlight the potential applications in various fields.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yang Wang, Kangjie Zhou, Lang Cui, Jiabing Mei, Shengnan Li, Le Li, Wei Fan, Longsheng Zhang, Tianxi Liu
Summary: This study presents a polyimide sandwiched separator (s-PIF) for improving the cycling stability of Li-metal batteries. The s-PIF separator exhibits superior mechanical property, electrolyte adsorption/retention and ion conductivity, and enables dendrite-free Li plating/stripping process.
JOURNAL OF POWER SOURCES
(2024)