Article
Chemistry, Multidisciplinary
Burak Akdeniz, Jeffery A. Wood, Rob G. H. Lammertink
Summary: Chemically induced transport methods provide new opportunities for colloidal transport in dead-end channel geometries. Diffusiophoresis, which involves particle movement under an electrolyte concentration gradient, has been previously demonstrated in such channels. This study shows that concentration-dependent zeta potentials are necessary for accurately describing particle transport in dead-end channels when the zeta potential strongly depends on electrolyte concentration. Simulations incorporating concentration-dependent zeta potentials match experimental observations, while simulations using constant zeta potentials fail to capture particle dynamics. These findings contribute to a better understanding of diffusiophoresis and the diffusio-osmosis process.
Article
Metallurgy & Metallurgical Engineering
Hong-ming Long, Bang-fu Huang, Zhe Shi, Lan-peng Liu, De-fu Wang, Lu Li
Summary: Fe-loaded activated carbon has high surface acidity and manganese-loaded AC has high oxygen content. The study aimed to reveal the modification mechanism of coconut husk AC modified by Fe-Mn. The effects of HNO3, Fe(NO3)(3), and Mn(NO3)(2) on the pore texture and surface chemical characteristics of carbon materials were examined, showing differences in surface topography, pore structure, active material, and functional groups between AC, HNO3/AC, and Fe-Mn/AC.
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
(2021)
Article
Energy & Fuels
Teja M. Patil, Aravind H. Patil, Mokurala Krishnaiah, Dhananjay Mishra, Ajit Kumar, Niraj Kumar, Vijay D. Chavan, Deok-Kee Kim, Sushant B. Patil, Shivaji B. Sadale, Raviraja T. Patil, Vijay J. Fulari, Sung Hun Jin, Vibhavari P. Malekar
Summary: The addition of a redox additive, potassium ferricyanide, to an aqueous gel electrolyte has been found to improve the electrochemical performance of CuCo2O4 nanowire arrays based solid state symmetric supercapacitors. The addition of potassium ferricyanide significantly increases the areal capacitance and energy density, and the CuCo2O4 exhibits good cyclic stability. These findings demonstrate the promising potential of adding redox substances in aqueous electrolytes for energy storage systems.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Electrochemistry
David P. Trudgeon, Xiaohong Li
Summary: This study aims to identify a suitable electrolyte composition for zinc-nickel flow cell operation at ambient temperature. The research found that adjusting the electrolyte composition can improve the efficiency and stability of the battery.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Hui Feng, Qi Yang, Chao Li, Yang Lin, Haigang Liu, Nian Zhang, Bingwen Hu
Summary: The use of 5,10,15,20-tetrakis(4-aminophenyl)-porphyrin (TAPP) and 5,10,15,20-tetrakis(4-aminophenyl)-porphyrin-Co(II) (Co-TAP) as redox mediators in Li-O2 batteries is effective for optimizing battery performance. Co-TAP, with the synergistic effects of a center metal atom and organic ligand, exhibits better oxygen reduction and evolution properties. The comprehensive study of discharge/charge processes and parasitic reactions reveals that TAPP affects the formation mechanism of Li2O2, while Co-TAP can transform the main discharge product into LiOH without additional water, thereby eliminating singlet oxygen (1O2) and mitigating parasitic reactions associated with 1O2.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Inorganic & Nuclear
Claudina X. Cammack, Harry D. Pratt, Leo J. Small, Travis M. Anderson
Summary: In this study, an established asymmetric RFB was optimized to reduce capacity fade and improve energy efficiency. A series of substituted Fe(bpyR)(3)(BF4)(2) complexes were prepared to potentially achieve a higher voltage RFB. The unsubstituted Fe(bpy)(3)(BF4)(2) exhibited the highest stability and efficiency as a catholyte in both symmetric and asymmetric cells.
DALTON TRANSACTIONS
(2021)
Article
Geosciences, Multidisciplinary
Jing Liu, Qingze Chen, Yixuan Yang, Hongyan Wei, Minwang Laipan, Runliang Zhu, Hongping He, Michael F. Hochella
Summary: The chemistry of Fe and Mn in natural geochemical systems are closely coupled, and the coupled redox reactions between Fe and Mn play important roles in environmental system dynamics. The crystallization and transformation of FeOx and MnOx are bilaterally affected by the coupled redox between Fe and Mn. The coupled redox cycling of Fe and Mn exerts more complex and significant influences on biogeochemical processes compared to individual Fe or Mn.
EARTH-SCIENCE REVIEWS
(2022)
Article
Chemistry, Inorganic & Nuclear
Xianrui Gao, Hongjun Fan
Summary: This study investigates the modulating effect of the non-redox-inactive component Ca2+ on the redox potential of the photosynthetic oxygen-evolving center. The results show that the non-redox-inactive metal has a weak modulating effect on the potential, while the net charge of the complex has a significant impact. The potential can be regulated through protonation, deprotonation, or ligand modification.
INORGANIC CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Jia Yang, Mengxiao Wang, Tao Chen, Xiang Yu, Gang Qin, Xiaohan Fang, Xiaoxiang Su, Qiang Chen
Summary: To meet the practical needs of flexible and wearable electronic equipment, a novel multifunctional gel polymer electrolyte (GPE) was developed for supercapacitors, which exhibited toughness, self-healing, and high specific capacitance. The GPE, composed of polyvinyl alcohol (PVA)-sodium alginate (SA)-K-3[Fe(CN)](6)-Na2SO4, utilized K-3[Fe(CN)](6) as a carrier donor, ionic crosslinking agent, and redox-active mediator, effectively balancing the conductivity and mechanical properties. The resulting supercapacitor showed outstanding bending and stretching stabilities, self-healing capability, and anti-freezing properties, making it promising for use in complex service conditions of flexible and wearable electronic equipment.
SCIENCE CHINA-MATERIALS
(2023)
Article
Chemistry, Physical
Xuesong Xie, Hongwei Fu, Yun Fang, Bingan Lu, Jiang Zhou, Shuquan Liang
Summary: By using an ion concentration/dilution strategy, the capacity and efficiency of Zn/MnO2 batteries can be improved, leading to enhanced performance in terms of capacity release, cycle life, and elevated-temperature endurance.
ADVANCED ENERGY MATERIALS
(2022)
Article
Biotechnology & Applied Microbiology
Dahai Sun, Shuai Liu, Fangyu Yu, Hui Tian, Qi Zhao
Summary: The study demonstrates that supported Fe(NO3)(3)/beta molecular sieve catalysts prepared under certain conditions exhibit good catalytic performance in the selective oligomerization of isobutylene.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2021)
Article
Electrochemistry
Xiaoping Wang, Magali Ferrandon, Jae Hyung Park, Jing-Jing Shen, A. Jeremy Kropf, Hanguang Zhang, Piotr Zelenay, Deborah J. Myers
Summary: This study investigated the iron redox behavior and oxygen reduction reaction (ORR) activity of Fe-N-C ORR electrocatalysts synthesized by various techniques, focusing on the identity of the electrolyte anion (bisulfate/ sulfate or perchlorate) at a constant pH. The in-situ X-ray absorption spectroscopy data confirmed the assignment of redox peaks to the Fe3+/Fe2+ redox couple. The results showed that there is a correlation between the Fe redox couple peak potential and the ORR activity in perchloric acid electrolyte, but not in sulfuric acid electrolyte. The higher ORR activity observed in sulfuric acid electrolyte was attributed to the stronger interaction between H2SO4 and Fe-N-C.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
Alagusundari Karuppiah, Aravindan Natarajan, Gnanavel Angamuthu, Venkatesan Rengarajan
Summary: We developed a (PVA)-H2SO4-[Co(en)(3)]Cl-3 center dot 3H(2)O gel polymer electrolyte by blending PVA, H2SO4, and [Co(en)(3)]Cl-3 center dot 3H(2)O, which significantly improves the electrochemical performance of the solid-state supercapacitor. The electrolyte exhibits excellent capacitive property and ionic conductivity.
Article
Materials Science, Multidisciplinary
Zi Li Zhao, Peng Shao, Li-Ping Ding, Hui Zhang, Yan Tang, Yi-Wen Li, Wei Dai
Summary: The functionalization of monolayer MoS2 through the adsorption of iron-based magnetic superhalogen Fe(NO3)(3) can regulate its electronic properties and magnetism, thus promoting its application in electronic devices.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Engineering, Civil
Ji Liu, Doerthe Tetzlaff, Tobias Goldhammer, Songjun Wu, Chris Soulsby
Summary: Stream nitrate nitrogen (NO3) concentrations and concentration-discharge (C-Q) relationships in the Spree catchment were investigated to understand their long-term variability and response to climate change. The study revealed that while nitrate inputs were decreasing, stream NO3 concentrations varied at different spatial scales and showed seasonal differences. The upper catchment, with a high proportion of farmland, had high levels of stream NO3 concentration, while the mid-and lower-catchment areas showed a positive correlation between stream NO3 concentrations and streamflow. The stream NO3 concentrations were also affected by drought conditions and hydrological connectivity.
JOURNAL OF HYDROLOGY
(2023)
Review
Chemistry, Physical
Qianyu Hu, Kunfeng Chen, Fei Liu, Mengying Zhao, Feng Liang, Dongfeng Xue
Summary: This paper provides an overview of the application and challenges of machine learning in materials prediction. Taking solid-state electrolytes as an example, it outlines the general process of machine learning in materials prediction and reviews recent approaches and specific applications. The paper also highlights the obstacles caused by disciplinary span and aims to raise awareness among materials scholars about the application of machine learning in materials prediction.
Review
Chemistry, Multidisciplinary
Xiangfei Sun, Kunfeng Chen, Feng Liang, Chunyi Zhi, Dongfeng Xue
Summary: This article reviews the material design and manufacturing technology of different micro-supercapacitors (MSCs) in recent years, along with the integration of their devices to achieve target applications. The future development directions and challenges of MSCs are also critically discussed.
FRONTIERS IN CHEMISTRY
(2022)
Article
Engineering, Electrical & Electronic
Ming Li, Xin Xia, Kunpeng Li, Shuxian Wu, Jie Zou, Kunfeng Chen, Gongbin Tang
Summary: SAW resonators based on 36 degrees YX-LiTaO3/SiO2/4H-SiC multilayer substrates are fabricated in this work to effectively suppress acoustic energy leakage. By using interdigital transducers (IDT) with a tilted angle, a multilayer resonator with transverse mode suppression is achieved. The results show that the multilayer resonator exhibits extremely high Bode-Q and impedance ratio, and achieves a high figure of merit.
IEEE ELECTRON DEVICE LETTERS
(2022)
Review
Materials Science, Multidisciplinary
Guoqiang Shi, Dongfeng Xue
Summary: Functional materials exhibit diverse performances due to degrees of freedom in the lattice framework. Research on quantum materials can provide insights into multiscale processes. Understanding the sources of properties of functional materials from multiple degrees of freedom is crucial for their design.
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
(2022)
Article
Physics, Applied
Feng Liu, Kunfeng Chen, Chao Peng, Dongfeng Xue
Summary: This study investigates the multiscale behaviors of sapphire crystal growth along different crystal directions through theoretical and experimental studies. The results show that the growth behavior of sapphire along the c-axis is more complex compared to that along the a- and m-axes, involving solid-liquid and solid-solid transformations. Moreover, an abrupt change in the interfacial structure inhibits the transformation of liquid Al2O3 into α-Al2O3 along the c-axis.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Physical
Chun Cai, Dantong Zhang, Qi Zhang, Kunfeng Chen, Wenchao Hua, Chao Peng, Dongfeng Xue
Summary: The stability of lattice oxygen and transition metal sites in LiNi0.8Co0.1Mn0.1O2 (NCM811) cathode were systematically explored, and the importance of manganese was demonstrated. The effects of lithium vacancies on lattice oxygen and transition metal were investigated through vacancy formation energy, unpaired spins, and net charge. This study provides insights into oxygen release and transition metal dissolution in Ni-rich NCM811.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Editorial Material
Multidisciplinary Sciences
Feng Liu, Kunfeng Chen, Dongfeng Xue
Summary: Large-size crystals are essential in various fields, but their preparation remains difficult. Making breakthroughs in the theory and technology of large-size crystal growth is one of the top challenges in science and technology. Artificial intelligence is expected to play a significant role in achieving fast and large-size crystal growth.
Article
Chemistry, Multidisciplinary
Fei Liu, Mengying Zhao, Kunfeng Chen, Mei Hu, Dongfeng Xue
Summary: This work demonstrates that Ce3+-regulated CoNi-LDHs significantly enhance the kinetics of electron transfer and ion motion by increasing layer positive charges and weakening O-H bonds. The addition of Ce3+ also decreases the energy barrier of proton diffusion and increases the hole carrier concentration, resulting in high rate capacitance and fast charge storage kinetics.
Article
Chemistry, Multidisciplinary
Xianjie Zhang, Feng Liu, Kunfeng Chen, Guilin Zhuang, Chao Peng, Dongfeng Xue
Summary: Investigating the liquid structure of yttrium aluminum garnet (YAG) at high temperatures is significant for various fields, and molecular dynamic simulations were used to study the structure of YAG within a certain temperature range and to grow a YAG single crystal. The coordination number and bond length between cations and anions changed after melting, which can be explained by Pauling's third rule. In the liquid YAG, the coordination number decreased and the main structural units were AlO4 and YO7, which provided insight into phase selection and enabled rapid growth of YAG using the Czochralski method.
Proceedings Paper
Engineering, Electrical & Electronic
Ming Li, Xin Xia, Kunpeng Li, Shuxian Wu, Kunfeng Chen, Jie Zou, Gongbin Tang
Summary: SAW devices based on multilayer substrate offer excellent solution for higher performance filters in the RF industry due to their high-quality factors, small temperature coefficient of frequency, and high stability. In this study, SAW resonators based on a multilayer substrate were simulated and fabricated, achieving a spurious free response and high figure of merit through careful selection of material thickness and calculation of power flow angle.
2022 IEEE MTT-S INTERNATIONAL MICROWAVE WORKSHOP SERIES ON ADVANCED MATERIALS AND PROCESSES FOR RF AND THZ APPLICATIONS, IMWS-AMP
(2022)
Article
Chemistry, Physical
Panpan Zhang, Xu Wang, Yangyang Yang, Haifeng Yang, Chunsheng Lu, Mingru Su, Yu Zhou, Aichun Dou, Xiaowei Li, Xiaochuan Hou, Yunjian Liu
Summary: In this study, the influence of transition metal doping on the electronic and mechanical properties and electrochemical performance of 2HMoS2/NC was investigated using Cobalt (Co) as an example. Co doping was found to effectively improve the electronic conductivity and active site areas of 2H-MoS2/NC at different positions, optimizing the adsorption and diffusion capability of potassium ions. Furthermore, the study revealed the optimal roles of different types of nitrogen atoms in kinetic adsorption, diffusion, and interfacial stability of potassium ions. These findings provide guidance for the experimental design of high rate 2H-MoS2/NC electrode materials and the optimal design of other functional composite materials.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zeeshan Ajmal, Mahmood Ul Haq, Shahid Zaman, M. K. Al-Muhanna, Anuj Kumar, Mohammed M. Fadhali, Siwar Ben Hadj Hassine, Muhammas Qasim, K. F. Alshammari, Ghulam Abbas Ashraf, Abdul Qadeer, Adil Murtaza, Sulaiman Al-Sulaimi, Huaqiang Zeng
Summary: This study presents a novel heterojunction structure (SrTiO3/CN-TAL10.0) for enhanced photocatalytic water splitting (PWS). The incorporation of thiophenedicarboxaldehyde (TAL) through copolymerization significantly improves the photocatalytic activity of carbon nitride (CN) while maintaining its photostability performance. The optimized composition allows efficient isolation of photoinduced charge carriers and enhanced charge transport, resulting in a remarkable increase in overall photocatalytic efficiency.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Angela Arnosa-Prieto, Patricia Diaz-Rodriguez, Manuel A. Gonzalez-Gomez, Pelayo Garcia-Acevedo, Lisandra de Castro-Alves, Yolanda Pineiro, Jose Rivas
Summary: Macrophages can exhibit different phenotypes depending on the microenvironment and the characteristics of magnetic iron oxide nanoparticles (MNPs). This study demonstrates that the concentration and morphology of MNPs can influence the polarization of macrophages. The findings have implications for therapeutics targeting tissue regeneration and tumor progression.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yu Fang, Cheng-Ye Zhu, Hao-Cheng Yang, Chao Zhang, Zhi-Kang Xu
Summary: This study demonstrates the advantages of vacuum-assisted interfacial polymerization (VAIP) in fabricating polyimide nanofiltration membranes. By using vacuum filtration, aqueous solutions of PIP can be evenly distributed on different microfiltration substrates, leading to the fabrication of uniform and ultra-thin polyamide layers with excellent performance. The membranes exhibit high rejection rates and water permeance, as well as satisfactory long-term stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Isaac J. Gresham, Edwin C. Johnson, Hayden Robertson, Joshua D. Willott, Grant B. Webber, Erica J. Wanless, Andrew R. J. Nelson, Stuart W. Prescott
Summary: Understanding the interactions between polymers and surfactants is crucial for optimizing commercial systems. This study tested the behavior of polymer-surfactant systems, revealing that they do not behave like polyelectrolytes in the presence of salt. Additionally, the structure of polymer-surfactant complexes under confinement differs from that of polyelectrolytes.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yunxiao Xie, Cui Liu, Jie Zhang, Yan Li, Bin Li, Shilin Liu
Summary: This study aimed to improve the microstructure and rheological properties of W/W Pickering emulsions by crosslinking sodium alginate at the water-water interface, thereby enhancing the activity of encapsulated probiotics in simulated gastrointestinal digestion.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Sang Ho Lee, Yige Sun, Patrick S. Grant
Summary: This research developed an effective approach to enhance the charging rates of lithium ion batteries (LIBs) by strategically incorporating carbon nanotube (CNT) conductivity boosters into Li4Ti5O12 (LTO) electrodes. Multi-layer architectures comprising CNT-rich and CNT-free LTO electrode layers were manufactured using a layer-by-layer spray coating method to promote charge transfer kinetics of high mass loading electrodes. The best performing multi-layer was paired with a spray-coated LiFePO4 (LFP) positive electrode, resulting in attractive power performance that outperformed conventional LTO || LFP combinations.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jingwei Liang, Shaobin Li, Fengbo Li, Li Zhang, Yufeng Jiang, Huiyuan Ma, Kun Cheng, Liang Qing
Summary: A molybdenum-regulated self-supporting electrode material with rich vacancy defects has been successfully synthesized and shows exceptional catalytic activities and stability for electrocatalytic overall water splitting. This study provides a new perspective for the design and synthesis of non-precious metal bifunctional electrocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jonas Blahnik, Jennifer Schuster, Rainer Mueller, Eva Mueller, Werner Kunz
Summary: This study investigates the relationship between the morphology of PMMA monopolymers and PMMA-PHEMA copolymers with the expected nature of surfactant-free microemulsions (SFMEs) before polymerization. It is found that previously mesostructured, surfactant-free mixtures can produce porous polymers of different morphologies, while unstructured, oil-rich regions lead to solid, transparent polymers without nanostructured morphologies. Additionally, a surfactant-based reference system shows similar phase behavior and polymer morphologies as the comparable surfactant-free system, indicating the importance of the hydrotropic behavior of HEMA in this system.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zheng-Fen Pu, Wen-Zhi She, Rong Sheng Li, Qiu-Lin Wen, Bi-Chao Wu, Chun-Hua Li, Jian Ling, Qiue Cao
Summary: This study synthesized two framework-isomeric covalent organic frameworks (COFs) and discovered that the light scattering signal of COFs can be used for the analytical detection of lead ions. By controlling synthesis conditions and introducing regulators, the morphology of COFs could be controlled and framework-isomeric COFs could be precisely synthesized.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yuchen Weng, Ying Hong, Jingyu Deng, Sicheng Cao, Li-Juan Fan
Summary: This paper reports the preparation of dynamic color-changing fluorescent polymer nanoparticles (PNPs) by constructing a fluorescence resonance energy transfer (FRET) pair. The PNPs show excellent anti-counterfeiting effects and reproducibility. The study demonstrates a promising encryption strategy that can achieve multiple outputs with simple operation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Guodong Liu, Zijian Wang, Jianing Wang, Hanbin Liu, Zhijian Li
Summary: This study investigates the combination of multicolor switchable polyaniline (PANI) electrode and 1-methyl-4,4'-bipyridyl iodide (MBI), which demonstrates superior optical properties in visible and near-infrared light modulation, as well as excellent electrochemical performances. This combination can be used to develop novel electrochromic devices for applications in smart packaging, smart labels, and flexible smart windows.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Huying Yan, Yang Guo, Xingzhi Bai, Jiawei Qi, Haipeng Lu
Summary: By modifying Ti3C2Tx through heterogeneous interface engineering, optimized impedance matching is achieved, leading to enhanced electromagnetic wave absorption performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Kehu Zhang, Yang Zhou, Silvia Moreno, Simona Schwarz, Susanne Boye, Brigitte Voit, Dietmar Appelhans
Summary: This article presents an advanced crosslinking strategy to fabricate clustered polymersomes using host-guest interactions. By controlling the input of crosslinker and environmental conditions, reversible aggregation and disassembly of these polymersomes can be achieved. The size and structure of these clustered polymersomes can be regulated and visualized through a fluorescent enzymatic cascade reaction.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Junjie Xu, Weixiong Huang, Ruiling Li, Li Li, Jinjin Ma, Jiaou Qi, Haiyan Ma, Min Ruan, Lilin Lu
Summary: In this study, a potassium doped palladium catalyst was developed for acetylene hydrogenation, showing excellent catalytic performance and durability. The doping of potassium effectively weakened the adsorption of ethylene, improved ethylene selectivity, and lowered the barriers of hydrogen activation and transfer reactions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)