Article
Engineering, Environmental
Mohammad Ghorbani, Shiva Salem
Summary: This study investigated the performance of hybridized materials in the photocatalytic treatment of industrial sewages. By optimizing the proportion of GO and CNTs, as well as controlling variables like initial COD and pH, a promising material for wastewater cleaning in real conditions was developed.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Chemistry, Multidisciplinary
Xiao-Ying Zhang, Yue Yang, Zhi-Xuan Zhang, Xin-Peng Geng, Chia-Hsun Hsu, Wan-Yu Wu, Shui-Yang Lien, Wen-Zhang Zhu
Summary: In this study, SiO2 films were deposited by remote plasma atomic layer deposition using different oxygen plasma powers. The results showed that the oxygen plasma power had a significant impact on the growth rate and surface properties of the SiO2 films. Additionally, increasing post-annealing temperature resulted in denser SiO2 films with higher refractive index and lower etch rate.
Article
Biotechnology & Applied Microbiology
Qiying Zeng, Naiyu Xiao, Xueqin Zhang, Wenhan Luo, Gengshen Xiao, Wanjing Zhai, Le Zhong, Bifeng Lan
Summary: This study successfully prepared biocomposite films with good mechanical and barrier properties by plasticizing microcrystalline cellulose films with Chinese leek extract, showing excellent comprehensive performance. In addition, the addition of leek extract improved the UV-shielding performance of the films, expanding the potential applications of microcrystalline cellulose films in the packaging industry.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Sheng-Kuei Chiu, Wei-Cheng Li, Wei Lee, Ting-Hsun Su, Giin-Shan Chen
Summary: This study focuses on the deposition of TiO2/WO3 nanocomposite thin films onto super white glass and explores the optimization of photocatalytic performance through processing controls and adjustments of the film's chemical composition. The results demonstrate the fabrication of an anatase-dominated, mesoporous coating that exhibits the highest level of superhydrophilicity and photocatalysis, making it suitable for self-cleaning cover glass applications. The mechanism behind the superior photoactivity of this film is clarified through atomic-scaled analyses.
Article
Nanoscience & Nanotechnology
Min Seong Kim, Hyung Tae Kim, Hyukjoon Yoo, Dong Hyun Choi, Jeong Woo Park, Tae Sang Kim, Jun Hyung Lim, Hyun Jae Kim
Summary: This study suggests that introducing an oxygen scavenger layer (OSL) in a-IGZO TFT can significantly improve its electrical characteristics and stability, especially at low temperatures. The enhancement is mainly attributed to the presence of hafnium (Hf) in the OSL, which absorbs oxygen ions to address interface issues between the front channel and OSL.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Energy & Fuels
Wen -Wei Lin, Ning-Wei Wang, Ze-Ying Lan, Zhi-Ping Huang, Li-Mei Lin, Qing-Ying Ye, Shui-Yuan Chen, Gui-Lin Chen
Summary: In this work, a facile ion-exchange assisted chemical bath deposition method is proposed for the preparation of high-quality CuSbS2 thin film. Through ion-exchange and mild etching processes, the by-product Sb2O3 is successfully removed, and an inorganic CuSbS2 solar cell with low photoelectric conversion efficiency is assembled.
Article
Chemistry, Multidisciplinary
Li Liu, Mariko Ueda, Toshiyuki Kawaharamura
Summary: In this research, antimony doped tin oxide thin films are grown using an environmental-friendly mist chemical vapor deposition system. The role of different solutions in supporting the film fabrication process is analyzed and studied. The experimental results show that the choice of supporting solution affects the conductivity and transmittance of the Sb:SnOx films.
Article
Biochemistry & Molecular Biology
Mahmud Ekrem Parlak, Kubra Uzuner, Fatma Tuba Kirac, Sebahat Ozdemir, Ayse Neslihan Dundar, Oya Irmak Sahin, Adnan Fatih Dagdelen, Furkan Turker Saricaoglu
Summary: Recently, the packaging industry has shifted towards biodegradable packaging, with poly(lactic acid) (PLA) emerging as the leading polymer. However, the high oxygen permeability of PLA films poses a significant limitation. This study aimed to enhance the oxygen barrier properties of PLA films while maintaining their mechanical and water vapor barrier properties. By adjusting the thickness of PLA and zein, biodegradable PLA-zein bilayer films were produced, resulting in transparent and UV barrier films. The mechanical properties of PLA films were improved by the bilayer production, while the water vapor permeability increased and the permeance decreased with zein coating. The best bilayer films were selected based on a multi-criteria decision hierarchy considering mechanical, permeance, and opacity results. The zein coating significantly enhanced the oxygen barrier properties of PLA films without affecting their hydrophobicity. The crystallization and melting temperatures of the films decreased compared to PLA films, supporting the mechanical results. The zein layer exhibited good compatibility with the PLA layer, resulting in a homogeneous, non-porous, and smooth film surface. These findings suggest that zein coatings can effectively reduce the oxygen permeability of PLA films without compromising other properties.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Physical
KrishnaRao Eswar Neerugatti, Sangeeta Adhikari, Do-Heyoung Kim, Jaeyeong Heo
Summary: Electrodeposited cobalt phosphate (Co-Pi) films are a promising choice for oxygen evolution reactions. The performance of these films varies with different operating conditions, with highly alkaline electrolyte providing better charge densities but at the expense of surface phosphate species.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Chemical
Zhao-Xu Wang, Wei-Shi Sun, Wen-Hai Zhang, Shuo Li, Ming-Jie Yin, Quan-Fu An
Summary: High-efficiency CO2 capture is crucial for mitigating the global temperature rise and its severe impacts on various aspects of human life. Thin-film composite membranes (TFCM) have gained attention due to their energy-efficient and environmentally friendly nature. However, the nonideal interface between the gutter layer and the separation layer limits the fabrication of defect-free and thin separation layers, resulting in poor separation performance. In this study, a strategy involving oxygen-plasma modification and spin-coating was developed to engineer the interface of TFCM and improve its performance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Zepeng Fang, Dagui Chen, Fengpo Yan, Jiangquan Lv, Yongjing Wang, Xiangfeng Guan
Summary: By preparing a new electrode composite of Ni/ZnO/Cu, the study successfully improved the sensitivity and portability of COD electrochemical detection.
SURFACES AND INTERFACES
(2021)
Article
Materials Science, Ceramics
Kang-Hwan Bae, Seung-Hyun Lim, Kie Yatsu, Ick-Joon Park, Hyuck-In Kwon
Summary: This study investigated the physical and chemical properties of H2 plasma-treated tin oxide thin films and their applications in ambipolar thin-film transistors. The results showed that H2 plasma treatments induced changes in the chemical structures and surface morphologies of the thin films, improving their ambipolarity and electrical performance.
CERAMICS INTERNATIONAL
(2022)
Review
Environmental Sciences
Weilan Zhang, Yanna Liang
Summary: Due to their unique features, C-F bonds are widely used in various products and applications. These fluorinated compounds are eventually released into the environment through different pathways. This review analyzes the occurrence and fate of fluorinated compounds in seven types of products and discusses their quantity. The primary contributors in terms of total mass are chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs). Additionally, other sources are also responsible for the presence of organofluorine compounds in the environment. Trifluoroacetic acid (TFA) is highlighted as a common degradation product. The paper concludes with a discussion on future directions for protecting the environment and human health.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Ye-Bing Hu, Cong-Qian Cheng, Tie-Shan Cao, Li Zhang, Jie Zhao
Summary: The characteristics and growth mechanism of the oxide film on a single crystal Ni-based superalloy were studied under the ground surface signature. It was found that during transient oxidation, oxygen atoms invaded the substrate along with the gamma' phases, resulting in the formation of nanosize Ni-Al spinels and alumina. The outer layer of NiAl2O4 followed a linear law and was controlled by outward diffusion, while the inner layer of Al2O3 followed a parabolic law and was determined by inward diffusion of oxygen.
Article
Engineering, Environmental
Wenchao Duan, Murat Gunes, Antonio Baldi, Marti Gich, Cesar Fernandez-Sanchez
Summary: This paper describes the manufacturing and application of a miniaturized electrochemical sensor for measuring dissolved chemical oxygen demand (COD) in surface waters entering and exiting urban wastewater treatment plants. The sensor is produced using thin-film carbon electrodes and electrodepositing copper nanoparticles, allowing for a high linear range and low detection limit. It provides real-time monitoring of soluble organic load in urban wastewater.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Electrochemistry
Abdul Qayoom Mugheri, Shaista Khan, Ali Asghar Sangah, Aijaz Ahmed Bhutto, Muhammad Younis Laghari, Nadeem Ahmed Mugheri, Asif Ali Jamali, Arsalan Ahmed Mugheri, Nagji Sodho, Abdul Waheed Mastoi, Aftab Kandhro
Summary: Green hydrogen has the potential to transition to a pollution-free energy infrastructure. This study proposes a solution to produce hydrogen during the photoelectrochemical process, offering greater stability and control over chemical reactions. Techno-economic assessments show the efficiency and economic feasibility of co-producing value-added chemicals to enhance green hydrogen production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Danpeng Cheng, Wuxin Sha, Qigao Han, Shun Tang, Jun Zhong, Jinqiao Du, Jie Tian, Yuan-Cheng Cao
Summary: LiNixCoyMn1-x-yO2 (NCM) is a critical cathode material for lithium-ion batteries in electric vehicles. The aging of cathode/electrolyte interfaces leads to capacity degradation and long-term cycle instability. A novel neural network model called ACGNet is developed to predict electrochemical stability windows of crystals, allowing for high-throughput screening of coating materials. LiPO3 is identified as a promising coating material with high oxidation voltage and low cost, which significantly improves the cycle stability of NCM batteries. This study demonstrates the accuracy and potential of machine learning in battery materials.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
P. Mohana, R. Yuvakkumar, G. Ravi, S. Arunmetha
Summary: This study successfully fabricates a non-noble CuO/NiO/rGO nanocomposite and investigates its electrocatalytic performance for oxygen evolution reaction in alkaline environment. The experimental results demonstrate that the electrocatalyst exhibits high activity and good stability, offering a new synthetic approach for sustainable energy production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Qiong Qu, Jing Guo, Hongyu Wang, Kai Zhang, Jingde Li
Summary: In this study, a bifunctional electrode host design consisting of carbon nanofibers implanted ordered porous Co-decorated Al2O3 supported on carbon nanotube film (CNTF) was proposed to address the shuttling effect of lithium polysulfides (LiPSs) and dendrite formation of metal lithium anode in lithium-sulfur (Li-S) batteries. The electrode exhibited excellent conductivity, efficient confinement of LiPSs, and catalytic conversion performance, resulting in high initial capacity and good capacity retention during cycling. As an anode, the electrode showed excellent Li+ diffusion performance and uniform lithium growth behavior, achieving a dendrite-free lithium electrode. The flexible pack cell assembled from these electrodes delivered a specific capacity of 972 mAh g(-1) with good capacity retention.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Hong Zhang, Jin-Peng Yu, Chen Chen, Cheng-Yong Shu, Guang-Yu Xu, Jie Ren, Kai Cui, Wen-Fang Cai, Yun-Hai Wang, Kun Guo
Summary: Spray coating of acetylene black nanoparticles onto stainless steel mesh can enhance its biofilm formation ability and current density, making it a promising electrode material for microbial electrochemical systems. The spray coating method is simple, cost-effective, and suitable for large-size stainless steel electrodes.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Binpeng Hou, Jingjin Chen, Li-Hong Zhang, Xiaowen Shi, Zizhong Zhu
Summary: The electrochemical performance of Li1.20Mn0.44Ni0.32Co0.04O2 and its oxygen-deficient phase Li1.20Mn0.44Ni0.32Co0.04O1.83 was studied through first-principles calculations. The results show that the oxygen-deficient phase has a higher theoretical capacity but lower voltage platform and higher chemical activity compared to the pristine phase.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Yating Du, Sayoko Shironita, Daisuke Asakura, Eiji Hosono, Yoshitsugu Sone, Yugo Miseki, Eiichi Kobayashi, Minoru Umeda
Summary: This study investigates the effect of high- and low-temperature environments on the charge-discharge performance of a Li-ion battery. The deterioration mechanisms of the battery at different temperatures are analyzed through various characterization techniques. The results indicate that the battery performance deteriorates more significantly at a low-temperature environment of 5 degrees C compared to higher temperatures. The understanding of the deterioration mechanisms can contribute to the development of safer battery usage methods.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Si-Si Shi, Zhi-Xiang Yuan, Fei Zhang, Ping Chen
Summary: In this study, a new nano-electrocatalyst was prepared, which exhibited superior electrocatalytic activity for the reduction of NO2- to ammonia in a neutral electrolyte, potentially due to the synergistic enhancement between Co3O4-x and Co.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Berna Dalkiran, Havva Bekirog
Summary: This study reports the use of deep eutectic solvents (DES) based on ethylene glycol and urea as low-cost and green electrolytes for enhancing electrochemical detection of natural antioxidants. The study successfully developed a disposable and effective electrochemical sensing platform for simultaneous determination of ascorbic acid (AA) and gallic acid (GA) using NaOH nanorods on a pencil graphite electrode. The proposed electrode showed improved analytical performance, with higher peak currents and shifted oxidation potentials in DES compared to BR buffer medium.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Sijun Ren, Jianguo Huang
Summary: In this study, a novel bio-inspired nanofibrous WO3/carbon composite was synthesized using a facile hydrothermal method. The three-dimensional network structure of the composite alleviated the volume expansion of WO3 nanorods and enhanced the charge-transport kinetics. The optimized composite exhibited superior lithium storage properties.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Zhilong Zheng, Yu Chen, Hongxia Yin, Hengbo Xiao, Xiangji Zhou, Zhiwen Li, Ximin Li, Jin Chen, Songliu Yuan, Junjie Guo, Haibin Yu, Zhen Zhang, Lihua Qian
Summary: This study found that interstitial Zn cations in CoMoO4 can modulate the dissolution kinetics of Mo cations and improve the OER performance. The interstitial Zn cations can prevent the dissolution of Co cations at high potential, enhancing the durability of the catalyst.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Xiaobo Lin, Shern R. Tee, Debra J. Searles, Peter T. Cummings
Summary: Molecular dynamics simulations using the constant potential method were used to investigate the charging dynamics and charge storage of supercapacitors. The simulations revealed that the water-in-salt electrolyte exhibited the highest charge storage and significantly higher capacitance on the negative electrode. The varying contributions of different electrode regions to supercapacitor performance were also demonstrated.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Wiktoria Lipinska, Vita Saska, Katarzyna Siuzdak, Jakub Karczewski, Karol Zaleski, Emerson Coy, Anne de Poulpiquet, Ievgen Mazurenko, Elisabeth Lojou
Summary: The spatial distribution of enzymes on electrodes is important for bioelectrocatalysis. In this study, controlled spatial distribution of gold nanoparticles on Ti nanodimples was achieved. The efficiency of enzymatic O2 reduction was found to be influenced by the size of the gold nanoparticles and their colocalization with TiO2. The highest stability of enzymatic current was observed with the largest gold nanoparticles.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Tariq M. Al-Hejri, Zeenat A. Shaikh, Ahmed H. Al-Naggar, Siddheshwar D. Raut, Tabassum Siddiqui, Hamdan M. Danamah, Vijaykumar V. Jadhav, Abdullah M. Al-Enizi, Rajaram S. Mane
Summary: This study explores a promising self-growth approach for the synthesis of nickel hydroxide (Ni(OH)2) nanosponge-balls on the surface of a nickel-foam (NiF) electrode. The modified NiF electrode, named Ni(OH)2@NiF, shows distinctive nanosponge-ball morphology and demonstrates excellent energy storage capability and electrocatalytic performance in both hydrogen and oxygen evolution reactions.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Rafael Del Olmo, Gregorio Guzman-Gonzalez, Oihane Sanz, Maria Forsyth, Nerea Casado
Summary: The use of Lithium-Ion Batteries (LIBs) is becoming increasingly extensive, and it is important to optimize the devices to achieve their maximum practical specific capacity. In this study, mixed ionic-electronic conducting (MIEC) binders based on PEDOT:PSS and PEDOT: PDADMA-TFSI were developed for Li-ion cathodes, and their performance was compared with conventional formulations. The influence of electrode formulations, including the addition of conducting carbon and an Organic Ionic Plastic Cristal (OIPC), was also analyzed. The proposed binders showed improved performance compared to conventional formulations with different electrolyte types and active materials.
ELECTROCHIMICA ACTA
(2024)