Article
Chemistry, Multidisciplinary
Yihao Liu, Guanyu Chen, Riyue Ge, Ke Pei, Chenxi Song, Wenxian Li, Yingying Chen, Yuan Zhang, Lingyan Feng, Renchao Che
Summary: A sequential self-templating method was used to synthesize CoNiFe trimetallic carbonate hydroxide hierarchical hollow microflowers with oxygen vacancies. These hollow microflowers exhibited high active-site exposure density and increased electrical conductivity due to their hollow structure, Fe substitution, and V-O. The optimized trimetallic carbonate hydroxide microflowers showed excellent performance in the oxygen evolution reaction with low overpotential and Tafel slope. Theoretical calculations revealed that Fe substitution and V-O could regulate the electronic states and achieve near-ideal adsorption/desorption capacity for oxygenated intermediates. The successful synthesis of other substituted carbonate hydroxides provides a general protocol to construct transition multimetallic electrocatalysts with hollow structures for highly efficient energy conversion reactions.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Jing Yao, Dexin Xu, Xinzhi Ma, Junpeng Xiao, Mingyi Zhang, Hong Gao
Summary: This study presents the fabrication of a trimetallic CoNiFe-layered double hydroxide (LDH) catalyst with optimized intrinsic activity. The catalyst shows low overpotentials for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), demonstrating superior performance compared to other LDH catalysts. The development of this trimetallic LDH catalyst holds great potential in hydrogen production.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
R. C. Rohn, Ajay D. Jagadale, Surendra K. Shinde, D-Y Kim, Vijay S. Kumbhar, Masaharu Nakayama
Summary: The prepared hierarchical nanosheets-based ternary CoNiFe layered double hydroxide (LDH) thin films exhibit excellent energy storage and catalytic performance, showing high specific capacity, stability, and promising potential as electrode materials for both electrochemical energy storage and catalysis.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Inorganic & Nuclear
Caihong Fang, Deliang Zhang, Xin Wang, Ran Li
Summary: This study reports a facile and versatile method to synthesize CoNiFeS-OH nanosheets with a special morphology and electronic structure. These nanosheets exhibit superior electrocatalytic activity for OER and UOR, and require lower voltages for overall water splitting and overall urea electrolysis compared to other catalysts. Additionally, the CoNiFeS-OH nanosheets show excellent stability.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Multidisciplinary
Jiashun Wu, Tong Yang, Rong Fu, Min Zhou, Lixue Xia, Zhaoyang Wang, Yan Zhao
Summary: Hollow CoNiFe-LDH nanocages with amorphous/crystal phase and element gradient distribution are successfully constructed through coordinated etching and precipitation process. The distinctive element gradient distribution in hollow CoNiFe-LDH nanocages result in composition gradient, which plays an important role in regulating morphology and electronic structure. When used as OER electrocatalysts, these nanocages exhibit competitive overpotential and low Tafel slope, making them highly efficient for electrochemical water splitting.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Applied
Yangyang Wen, Zhiting Wei, Jiahao Liu, Rui Li, Ping Wang, Bin Zhou, Xiang Zhang, Jiang Li, Zhenxing Li
Summary: A new hybrid nanostructure, NiFeCe-LDH/MXene, was developed for efficient electrocatalysis towards OER with low onset overpotential and overpotential in the alkaline medium compared to pure LDH counterparts and IrO2 catalyst. The hybrid catalyst also exhibited fast reaction kinetics and remarkable stable durability, showing potential for renewable energy conversion and storage systems.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Engineering, Environmental
Weimo Li, Sihui Chen, Mengxiao Zhong, Ce Wang, Xiaofeng Lu
Summary: A novel 3D core-shell Co-C@NiFe LDH nanofibrous electrocatalyst with excellent OER performance has been successfully prepared, showing outstanding electrocatalytic activity for water oxidation and superior long-term stability.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Yiran Ding, Zhouyang Wang, Zijia Liang, Xueping Sun, Zihang Sun, Yuanxin Zhao, Junlin Liu, Chenyang Wang, Ziyue Zeng, Lei Fu, Mengqi Zeng, Lin Tang
Summary: A universal synthesis method is developed to prepare monolayer high-entropy layered hydroxides (HELHs) in a mild environment, overcoming the challenges of uncontrollable structure, poor stability, and scarce active sites. The HELHs show a high surface area and achieve a high current density and long-term stability in the oxygen evolution reaction (OER).
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Hua Yang, Zihao Zhou, Huijuan Yu, Hongli Wen, Runnong Yang, Shaomin Peng, Ming Sun, Lin Yu
Summary: Efficient and economic bifunctional electrocatalyst for water splitting to produce hydrogen is urgently required. Layered double hydroxides (LDHs) are effective for oxygen evolution reaction (OER) but show challenging hydrogen evolution reaction (HER) activity. A hydrothermal-treatment strategy enhances the HER and OER performance of NiCo-LDH by creating metal vacancies and forming Ni/Co(OH)2 phase, tuning electronic structure, and improving electrical conductivity. The resulting NiCo-LDH-OH catalyst exhibits significantly reduced overpotentials for both HER and OER, and demonstrates superior activity for overall water splitting with no decay after 20 hours. This work paves a new path for efficient LDHs-based HER/OER bifunctional catalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Haoyue Zhang, Lingling Wu, Ruohan Feng, Sihong Wang, Chia-Shuo Hsu, Yuanman Ni, Ashfaq Ahmad, Chaoran Zhang, Haofei Wu, Hao-Ming Chen, Wang Zhang, Yao Li, Pan Liu, Fang Song
Summary: Oxygen vacancies (Ov) engineering has been shown to greatly enhance electrocatalytic kinetics for oxygen evolution reaction (OER) by improving electronic transport. However, the mechanism behind this enhancement is not well understood. In this study, we investigate the role of superficial Ov in enhancing the catalytic potential of NiFe layered double hydroxides for OER. We find that superficial Ov engineering significantly reduces the charge transport resistances and modulates the utilization rate of active sites for OER catalysis.
Review
Chemistry, Multidisciplinary
Ting Wang, Weiwen Wang, Wenjie Shao, Mingru Bai, Mi Zhou, Shuang Li, Tian Ma, Lang Ma, Chong Cheng, Xikui Liu
Summary: Water electrolysis is crucial for producing clean fuels, with oxygen evolution reaction (OER) electrocatalysts playing a key role. Among them, nanostructured layered double hydroxides (nLDHs) as a member of the big family of two-dimensional materials have shown significant progress and breakthroughs for OER, with enhanced catalytic performances through strategies such as compositional substitution and heteroatom doping.
Article
Materials Science, Multidisciplinary
Manon Wilhelm, Alexandre Bastos, Cristina Neves, Roberto Martins, Joao Tedim
Summary: NiFe Layered Double Hydroxides (LDH) with different Ni/Fe ratios and levels of crystallinity were synthesized to evaluate their electrocatalytic behavior in 0.1 M KOH. Statistical analysis showed that an increase in the crystallinity of LDH may be detrimental to the catalytic efficiency.
MATERIALS & DESIGN
(2021)
Article
Chemistry, Physical
Yang Yang, Yue Wu, Donggang Guo, Lu Liu
Summary: This paper synthesized FeCoNi LDHs with different fluorine contents and studied their physical and chemical characteristics. The results showed that the fluorine content regulates the synthesis process, morphology, and electronic structure of the catalysts. The optimal catalyst exhibited excellent electrochemical performance in the OER reaction.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jun Zhang, Lin Hao, Zitong Chen, Yongjun Gao, Huan Wang, Yufan Zhang
Summary: In response to the demand for clean and renewable energy technologies, researchers have developed economically feasible and stable non-precious electrocatalysts for the oxygen evolution reaction (OER). A highly efficient Ni-NCN/CoFe-LDH composite catalyst was produced by embedding Ni nanoparticles into nanoporous carbon nanorods and electrodepositing them on CoFe-layered double hydroxide (LDH) nanosheets. The composite exhibited excellent catalytic activity with low overpotential, small Tafel slope, and good durability, attributed to the synergistic effect of multiple composites, enhanced electron transport, and uniformly dispersed Ni nanoparticles. The Ni-NCN/CoFe-LDH catalyst showed higher OER performance compared to Niundoped carbon nanorod/LDH, indicating the significant contribution of Ni dopant and LDH to overall OER performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Zhicheng Zheng, Yanru Guo, Hao Wan, Gen Chen, Ning Zhang, Wei Ma, Xiaohe Liu, Shuquan Liang, Renzhi Ma
Summary: By anchoring efficient catalytic alloy nanoparticles onto DS--NiFe LDH, this study successfully enhanced the oxygen evolution reaction performance, with the best-performing sample showing overpotentials of 204 mV at 10 mA cm(-2) and 262 mV at 50 mA cm(-2).
ENERGY & ENVIRONMENTAL MATERIALS
(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)