Article
Chemistry, Physical
Lilian Fernanda Martins do Amaral, Gabriela Siegel Aires, Fernando Wypych, Rilton Alves de Freitas
Summary: In this study, simple oil-in-oil emulsions were prepared using layered nanoparticles as stabilizers between silicone and castor oil. Layered double hydroxides with a shigaite-like structure were prepared by co-precipitation, followed by surface grafting with octadecyltrimethoxysilane in an apolar medium. The functionalized materials maintained their structure and morphology and showed good performance in controlling the hydrophobicity of the surface for application in oil-in-oil emulsions, improving their compatibility for dispersion in non-polar liquids.
APPLIED CLAY SCIENCE
(2023)
Article
Chemistry, Physical
Wenjun Liu, Kun Jiang, Yiming Hu, Qian Li, Yilin Deng, Jian Bao, Yucheng Lei
Summary: The Zr-doped layered double hydroxide on nickel foam was designed to enhance the bifunctional activities of electrocatalysts, showing superior OER and HER activities in 1M KOH and alkaline simulated seawater electrolyte. The CoFeZr/NF provides a new pathway for large-scale hydrogen production, with almost no attenuation when tested in alkaline seawater electrolyte compared to 1.0 M KOH.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Crystallography
Changxin Wei, Xiaoyun Yan, Yi Zhou, Wenke Xu, Yiqi Gan, Yihe Zhang, Na Zhang
Summary: Layered double hydroxides (LDHs) play an important role in various applications due to their biocompatibility, chemical versatility, and high theoretical capacity. This study investigates the crystal morphology control and exfoliation of LDHs. It is found that the interlayer spacing of LDH decreases with the affinity of intercalating ions, making it more difficult to exfoliate into nanosheets. By adjusting reaction conditions and adding specific compounds, the morphology and size of LDH can be controlled. The addition of formamide inhibits the formation of byproducts and reduces the size of LDH nanosheets. NaNO3 improves the monodispersity of LDH nanosheets. Lower standard molar Gibbs free energy leads to larger nanosheets using high saturation co-precipitation method, while the alteration of M2+ shows negligible difference in size and shape using homogeneous co-precipitation method.
Article
Chemistry, Physical
Junfeng Chen, Liting Jiang, Jiaqi Yang, Xuemei Wang, Ying An, Daoxin Yang, Qingying Wei, Yongle Wang, Renjun Wang, Yuewei Yang, Yanyan Liu
Summary: The CNT/NiCoAl-LDH nanocomposite was successfully prepared and exhibited excellent catalytic performance for the oxygen reduction reaction in MFC cathode. It showed high output voltage, maximum power density, and voltage stabilization time, indicating its potential as a cost-effective catalyst for future high-performance MFC cathodes.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Crystallography
Rodica-Mariana Ion, Claudiu Eduard Rizescu, Dan Adrian Vasile, Gabriel Vasilievici, Irina Atkinson, Adriana Rusu, Luminita Predoana, Florin Miculescu
Summary: Stone monuments suffering from aging and loss of properties can be improved with LDHs treatment, with brushing application being more effective than incorporation.
Article
Chemistry, Multidisciplinary
Wenhui Wang, See Wee Chee, Hongwei Yan, Ivan Erofeev, Utkur Mirsaidov
Summary: The growth pathways of LDH nanosheets can be controlled by tuning precursor concentrations, and they mainly grow through monomer addition and coalescence.
Review
Materials Science, Multidisciplinary
R. C. Rohit, Ajay D. Jagadale, Surendra K. Shinde, D. -Y. Kim
Summary: Researchers have been developing novel and advanced materials to meet the high demand for efficient and low-cost materials for energy and environmental applications. Layered double hydroxides (LDHs) have been found to be excellent materials due to their tunable elemental composition and diverse nanostructures, particularly in the fields of supercapacitors, electrocatalysts, and sensors. The electrodeposition method for preparing binder-free LDHs thin-film electrodes allows for the fabrication of uniform and well-oriented thin films with tunable elemental composition.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Zhiqiang Liu, Ying Liu, Yuxue Zhong, Liang Cui, Wenrong Yang, Joselito M. Razal, Colin J. Barrow, Jingquan Liu
Summary: Hierarchical MgCo2O4@CoFe-LDH core-shell nanowire arrays on Ni foam were synthesized via hydrothermal and calcination methods, showing excellent specific capacitance and cycling stability. These materials have great potential for application in energy storage devices.
JOURNAL OF POWER SOURCES
(2021)
Article
Agriculture, Multidisciplinary
Maarten Everaert, Erik Smolders, Mike J. McLaughlin, Ivan Andelkovic, Simon Smolders, Fien Degryse
Summary: Molybdenum is an essential plant micronutrient, with deficiencies often seen despite low plant requirements. ZnAl layered double hydroxides (LDHs) loaded with molybdate were studied as potential slow-release Mo compounds, showing varying desorption effects in different soil environments.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
Article
Chemistry, Physical
Bernardo Raimundo, Daisuke Kino, Nijika Kitgawa, Yasuaki Tokudome, Carla D. Nunes
Summary: In this study, low-cost CoAl LDH materials were demonstrated to be highly effective catalysts for the hydrogenation of aromatic nitro compounds to amino compounds under mild conditions, thanks to their high activity and unique physical and chemical properties. The as-synthesized CoAl LDH catalysts exhibited high conversion rates and selectivity for 7 different aromatic nitro compounds with competing functional groups, using sodium borohydride at room temperature and 1 atm. The reaction was completed in a short time, ranging from 5 to 150 min, and the catalyst showed excellent stability with over 8 cycles of reuse without significant loss of activity.
APPLIED CLAY SCIENCE
(2023)
Article
Chemistry, Physical
Geetanjali Mishra, Payoja Praharaj, Sony Pandey, Smrutiranjan Parida
Summary: Solution casting was used to create hybrid biodegradable films made of Polycaprolactone (PCL) and Zn-Al layered double hydroxide (LDH) intercalated with salicylate (SA) (P-L-S nanocomposites). The P-L-S (5%) nanocomposite film exhibited a significantly lower water vapor transmission rate compared to pure PCL film, mainly due to the convoluted action of LDH nanohybrids and the hydrogen bonding between LDH and water molecules. The nanocomposite also demonstrated excellent biodegradability and a high inhibition rate against E. coli and S. aureus, as well as strong radical scavenging ability against DPPH, suggesting potential applications in biodegradable packaging.
APPLIED CLAY SCIENCE
(2023)
Article
Chemistry, Applied
Wei Liao, Xiong Zhang, Jingai Shao, Haiping Yang, Shihong Zhang, Hanping Chen
Summary: This study synthesized a novel biochar modified with layered double hydroxide (LDH) using a simple and environmentally friendly method to enhance its removal efficiency of heavy metals. LDH modification activated biochar and prevented agglomeration, resulting in significantly increased adsorption capacity. Furthermore, LDH modification had an effect on the adsorption amount and total removal efficiency in the Pb-Cd binary system.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
The Duyen Nguyen, Thi Minh Phuong Nguyen, Huu Tap Van, Van Quang Nguyen, Lan Huong Nguyen, Thi Dong Nguyen, Thi Hong Vien Nguyen, Thi Hong Huyen Chu, Thu Huyen Nguyen, L. T. Ha, N. D. Vinh, Van Nam Thai, Kieu Anh Nguyen, Phan Quang Thang, Van Quang Nguyen
Summary: This study evaluated the performance of a composite material combining natural zeolite and Mg/Al LDH in the adsorption of ammonium from aqueous solutions. The results showed that the Mg/Al LDH-zeolite composite had higher adsorption capacity and heterogeneity. The optimal conditions for NH4+ adsorption were a solution pH of 8.0, a reaction time of 60 min, and an initial ammonium concentration of 40 mg/L. The maximum adsorption capacity of Mg/Al LDH-zeolite was 17.81 mg/g with an NH4+ removal efficiency of 89.03%.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Chemistry, Physical
Kunpeng Wang, Lei Liu, Aisheng Song, Tianbao Ma, Hongdong Wang, Jianbin Luo, Yuhong Liu
Summary: This research successfully achieved macroscale superlubricity under high contact pressures by introducing nanoadditives into an ionic liquid alcohol solution. Compared to micron-scale LDH particles, nanoscale LDH nanosheet additives exhibited better load-bearing capacity during superlubricity. The formation of a protective adsorption layer and ion distribution on the contact interface played a crucial role in the stability of superlubricity.
Article
Chemistry, Multidisciplinary
Yongchao Yao, Chaoxin Yang, Shengjun Sun, Hui Zhang, Meiqi Geng, Xun He, Kai Dong, Yonglan Luo, Dongdong Zheng, Weihua Zhuang, Sulaiman Alfaifi, Asmaa Farouk, Mohamed S. Hamdy, Bo Tang, Shuyun Zhu, Xuping Sun, Wenchuang (Walter) Hu
Summary: This study investigates an efficient and stable electrocatalyst for seawater oxidation in alkaline conditions, using Cr-doped CoFe-layered double hydroxide nanosheet array. The catalyst achieves high current densities at low overpotentials and exhibits good stability.
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)