Article
Chemistry, Physical
Jiangyu Hao, Xuefeng Zou, Li Feng, Wenpo Li, Bin Xiang, Qin Hu, Xinyue Liang, Qibing Wu
Summary: Metal metaphosphates, especially those with a core-shell structure, have shown great potential in energy storage applications. The core-shell structured Ni(OH)(2)/Ni(PO3)(2) (NNP) hybrid electrode exhibited superior specific capacitance and excellent stability in supercapacitor application. The porous nanoflake and hierarchical core-shell structure of NNP hybrid composite contribute to the outstanding electrochemical performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Fitri Nur Indah Sari, Kuang-Cheng Lin, Jyh-Ming Ting
Summary: In this study, ternary metal hydroxide nanorods were grown on Ni foam using a facile hydrothermal method for novel electrode applications in pseudocapacitors. The resulting core-shelled structure exhibited excellent electrochemical performance, including high specific capacitance, retention, and cycling stability. Furthermore, when evaluated as a positive electrode in an asymmetric supercapacitor, the core-shelled structure demonstrated outstanding energy density and cycling stability.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Sangeeta Adhikari, Gi-Hyeok Noh, Do-Heyoung Kim
Summary: Core-shell designed electrode architectures with favorable material components, specifically FeCo2O4@Ni(OH)2, were successfully grown on a Ni-foam substrate. These core-shell arrays exhibited improved electrochemical performance, with a high specific capacitance of 1944 F g-1 and better performance than individual FeCo2O4 and Ni(OH)2. The improved performance was attributed to the synergistic effects of the core-shell array architectures and enhanced electrical conductivity through electroactive sites.
APPLIED SURFACE SCIENCE
(2023)
Article
Energy & Fuels
Sankaiya Asaithambi, Palanisamy Rajkumar, Akshaya Subhramaniyan Rasappan, Ganesan Ravi, Dhayalan Velauthapillai, Kisoo Yoo, Jinho Kim
Summary: The study successfully synthesized Ni(OH)2-based ternary composites using a straightforward hydrothermal method. Comprehensive analyses were conducted on the structure, morphology, surface area, and binding energy of the materials. The Ni(OH)2/MWCNT/CNF electrode showed higher specific capacitance and lower resistance compared to pure Ni(OH)2 electrodes. The asymmetric supercapacitor device assembled with Ni(OH)2/MWCNT/CNF and activated carbon exhibited high energy and power densities, along with excellent capacitance retention after a large number of charge-discharge cycles.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Dehua Cao, Yi Li, Kunyu Chen, Zhen Li, Xinyuan Cao, Qilin Han, Zanhe Yang, Kunyapat Thummavichai, Nannan Wang, Yanqiu Zhu
Summary: PVP-modified and Co-doped Ni(OH)2 nanosheets with structurally robust interconnection are fabricated and show improved capacity performance and cyclic stability. An asymmetric supercapacitor device using P-CoNi-0.5 LDHs and activated cow dung carbon (ACDC) as the electrode materials exhibits high energy and power densities as well as excellent cyclic performance.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Wei Cao, Wenjing Zhao, Chenhan Xiong, Qiang Long, Nan Chen, Guoping Du
Summary: Regulating the composition and microstructure of multiphase nanocomposites can significantly improve charge storage capacity. In this study, we used NiCo-MOF as a precursor to prepare NiCo-LDH and Ni(OH)2 heterogeneous composite. By further regulating the Ni/Co ratio, we obtained NiCo-LDH and Ni(OH)2 with a two-dimensional nanosheet structure. The resulting NiCo-LDH@Ni(OH)2 electrode showed a specific capacity of 754.8C g-1 at 1 A g-1 and the HSC device maintained 89.0% of the initial performance after 5000 cycles, with an energy density of 30.6 Wh kg-1 and power density of 799.9 W kg-1.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Inorganic & Nuclear
Linli Chen, Wenna Zhao, Hao Chen, Kai Tao, Guochang Li, Lei Han
Summary: This study reports the preparation of a self-supported Zn/Co-S@Ni(OH)(2) array electrode with excellent electrochemical properties for supercapacitors and significant catalytic activity towards the oxygen evolution reaction (OER).
INORGANIC CHEMISTRY
(2023)
Article
Energy & Fuels
Nazish Parveen
Summary: The rational design of electrode materials is crucial for addressing the energy crisis. Nickel hydroxide (NHO) nanostructures with different morphologies were synthesized and their electrochemical performance was studied. The 3D flower-like NHO exhibited significantly enhanced capacitance compared to platelet and flake-like morphologies, highlighting the importance of morphology in improving electrode performance.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Jing Qian, Junhui Xu, Zhen Lu, Yazhen Wang
Summary: A nanosphere-interspersed flower-like heterostructure of ZnS/ZnCo2S4@Ni(OH)2 is successfully synthesized, which exhibits remarkable specific capacitance, high-rate capability, and excellent cycling stability in supercapacitors. Furthermore, a solid-state hybrid supercapacitor device constructed with this material demonstrates high operating potential, large energy density, and good stability. This study provides valuable insights into the design of electro-active materials and the construction of heterostructures for high-performance supercapacitors.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
B. Suganya, S. Maruthamuthu, J. Chandrasekaran, B. Saravanakumar, E. Vijayakumar, R. Marnadu, H. Elhosiny Ali, Tien Dai Nguyen
Summary: The N-doped graphene anchored Zn3V2O8 composite material prepared via hydrothermal method shows attractive capacitive features for supercapacitor electrode applications, including high specific capacitance, good rate capacitance, and cyclic stability. The composite demonstrated a capacitance of 395 Fg(-1) at a current density of 1 Ag-1, rate capacitance of 232 Fg(-1) at 10 Ag-1, and good cyclic stability after 5000 cycles, with 77% capacitance retention.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
Yu Lu, Yaohua Qin, Mingyue Chen, Gaofu Liu, Pengcheng Qi, Hao Wu, Yiwen Tang
Summary: In this study, a three-phase hierarchical nanostructure electrode was successfully designed and constructed using a facile one-pot hydrothermal strategy. The electrode exhibited remarkable electrochemical behavior, demonstrating the possibility and effectiveness of fabricating multi-dimensional and multi-phase composites for high-performance energy storage devices.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Shama Parveen, Kavyashree, Suneel Kumar Sharma, Priyanka Maurya, S. N. Pandey
Summary: In this study, binder free yttrium hydroxide electrodes were prepared using the SILAR method and their electrochemical performances were investigated. The Y_20 electrode with 20 SILAR cycles showed superior electrochemical performance and cycle stability, suggesting great potential for energy harvesting, power backup, and portable devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Jiasheng Chen, Parthasarathi Bandyopadhyay, En Mei Jin, Sang Mun Jeong
Summary: Transition metal phosphides (TMPs) are considered as promising materials for supercapacitors due to their excellent redox activity and electrical conductivity. However, their rate performance and long-term stability have limited their practical applications. In this study, hierarchical Fe-Co-P@Ni(OH)2 core@shell nanoarrays were synthesized and exhibited high specific capacity, rate capability, and cycling stability. An asymmetric supercapacitor device was also assembled with the Fe-Co-P@Ni(OH)2 electrode as the positive electrode, showing high energy density, rate capability, and cycling performance.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Pier Giorgio Schiavi, Pietro Altimari, Flavio Marzolo, Antonio Rubino, Robertino Zanoni, Francesca Pagnanelli
Summary: An experimental analysis was conducted to optimize the structure of Ni-Ni(OH)(2)/NiO core-shell nanowire electrodes for pseudocapacitor applications. The thickness and composition of the active phase shell were found to be affected by thermal treatments at different temperatures, resulting in varying capacitance values. Tailoring the capacitance of the electrodes by controlling the nanowire length was evaluated, showing that mass transfer resistance can be negligible within a certain range.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Xuan Liang Wang, En Mei Jin, Jiasheng Chen, Parthasarathi Bandyopadhyay, Bo Jin, Sang Mun Jeong
Summary: Ni3S2 nanowires were synthesized on Ni foam using a one-pot hydrothermal reaction, and coated with Co(OH)(2) shells to improve their electrochemical properties. The Co(OH)(2)-Ni3S2/Ni electrode exhibited high specific capacitance and good cycling stability. In an ASC, the Co(OH)(2)-Ni3S2 and active carbon electrodes showed high power density and good energy density, making them suitable for energy storage applications.
Article
Chemistry, Multidisciplinary
Zihan Ma, Lishuang Wang, Tingting Chen, Guangning Wang
Summary: In this study, two kinds of 3D self-doped (N/O) lilac-based and coriander-based porous carbons with high performance have been prepared.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Qin Wang, Yun-Fan Yan, Jiao-Lin Weng, Ying Huang, Fu Yang, Hao-Hui Xie, Fei Tan, Fa-Kun Zheng, Jian-Gang Xu
Summary: Balancing energy and mechanical sensitivities is a challenging issue in the field of energetic materials. This study constructed a 3D energetic metal-organic framework with nitrogen-rich ligand and NO3- anions. The framework demonstrated high stability, energy density, and excellent mechanical sensitivities, making it a potential insensitive energetic material.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Marrium Saeed, Urooj Kamran, Amina Khan, Md Irfanul Haque Siddiqui, Hasan Jamal, Haq Nawaz Bhatti
Summary: In this study, magnesium-aluminum layered double hydroxides (Mg-Al-LDH) were synthesized using an environmentally friendly hydrothermal technique for adsorbing the dye reactive green 5 (RG5). To improve the adsorption capability, composites were prepared by combining Mg-Al-LDH with low-cost Mangifera indica stone biomass (MISB). The results showed that the composites had high adsorption capacities for RG5 dye and could be regenerated.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Xuanlin Zhan, Xiaojie Li, Yunyan Zeng, Siyan Jiang, Chao Pan, Shiyu Pan, Jiaquan Huang, Heqian Zhang, Zhiwei Qin
Summary: This study reports on the potential prospects of natural products derived from the rhizosphere for the development of antibiotics and herbicides, as well as the advancements in cultivating a mutant strain that produces a substantial quantity of lydicamycins, a potent family for herbicide development.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Jie Zhu, Jiangtao Yu, Linhua Zhu, Xiaoxiao Yu, Jixing Liu, Yanhong Chao, Jingzhou Yin, Peiwen Wu, Jian Liu, Wenshuai Zhu
Summary: This study successfully demonstrates the 3D printing of attapulgite monoliths and investigates the influence of thermal treatment on their properties. The thermal treated monoliths show superior catalytic performance at low temperatures.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yanzhu Ye, Yixiang Ye, Jiannan Cai, Zhongshui Li, Shen Lin
Summary: In this paper, a novel Pt/CoP/C photo-electro synergistic catalyst was successfully synthesized and its performance was investigated. The catalyst exhibited excellent photo-electro catalytic performance, with significantly higher hydrogen production compared to a commercial catalyst. The introduction of cobalt phosphide and the existence of Co3O4 were identified as key factors for enhancing the catalytic activity.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nurul Hidayah Abu Bakar, Wan Norfazilah Wan Ismail, Hartina Mohd Yusop, Noreen Farzuhana Mohd Zulkifli
Summary: Hydrophobic coatings inspired by the lotus effect have gained popularity for their ability to solve various problems. The sol-gel method, utilizing silica, alumina, and titania, is explored as an environmentally friendly approach to produce water-based hydrophobic coatings. This study focuses on producing water-based hydrophobic coatings for cotton and polyester fabrics using a one-step sol-gel method. The coated fabrics exhibited improved hydrophobic properties, altered surface morphologies, and lower air permeability compared to uncoated fabrics. TEOS-PDMS coating provides a promising approach for enhancing the hydrophobic and surface properties of cotton and polyester fabrics.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nikita Belko, Hanna Maltanava, Anatol Lugovski, Polina Shabunya, Sviatlana Fatykhava, Evgeny Bondarenko, Pavel Chulkin, Sergey Poznyak, Michael Samtsov
Summary: This study investigates the difference in electrochemical behavior between rhodamine B hydrazide and rhodamine B acylhydrazone, and finds that rhodamine B acylhydrazone exhibits higher reversibility in electrooxidation. These results can be applied for developing new sensors with desired electrochemical properties.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Showket Ahmad Bhat, Mohd Ikram
Summary: In this study, 0-3 particulate multiferroic composites were synthesized and characterized. The composites exhibited excellent ferroelectric and ferromagnetic properties, as well as high piezoelectric strain and magnetoelectric coupling effects.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Carla Gomes, Mariana Costa, Susana M. M. Lopes, Bernardo Albuquerque Nogueira, Rui Fausto, Jose A. Paixao, Teresa M. V. D. e Melo, Luisa M. D. R. S. Martins, Marta Pineiro
Summary: The development of sustainable processes requires the integration of green chemistry principles. In this study, a solvent-free synthesis method was developed to prepare new copper catalysts, which efficiently catalyze cycloaddition reactions under solvent-free mechanochemical conditions. Through this process, the principles of atom economy, reduction of solvents and auxiliaries, design for energy efficiency, and reduction of derivatives and catalysis are combined.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Zhihua Liu, Jinzhe Li, Jianguo Zhou
Summary: This study demonstrates the enhancement of photoelectrochemical activity of BiFeO3 photoelectrodes through ion modification, which increases visible light absorption and active area, leading to improved PEC water splitting performance.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yisheng Zhang, Wensong Li, Jing Li, Fang Li, Wei Xue, Xinqiang Zhao, Yanji Wang
Summary: Pt/C and SO42-/ZrO2 were used as catalysts for the synthesis of p-aminophenol through the catalytic transfer hydrogenation of nitrobenzene in water with formic acid as the hydrogen source. The optimal Pt loading for PAP selectivity was found to be 1 wt%. The presence of different valence states of Pt affected both the nitrobenzene hydrogenation and formic acid decomposition. Among different solid acid catalysts tested, SO42-/ZrO2 exhibited the highest catalytic activity for p-aminophenol formation. Under the optimized reaction conditions, the conversion of nitrobenzene reached 80.0%, with a selectivity of 47.6% for p-aminophenol.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Pradyota Kumar Behera, Papita Behera, Amlan Swain, Santosh Kumar Sahu, Ajeena Sahoo, Laxmidhar Rout
Summary: We have developed a simple and direct method for the synthesis of diaryl ether using an oxygen bridged bimetallic CuMoO4 nanocatalyst under mild reaction conditions. The catalyst exhibited tolerance towards a wide range of substrates with various functional groups. It is efficient and recyclable. This methodology allows easy access to nitrofen derivatives (herbicides) from unactivated 2,4-dichlorophenol, which are important for agriculture and pharmaceuticals.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yihua Fu, Yan Zhang, Changwei Hu, Zhishan Su
Summary: The mechanism of the reaction between CO2 and styrene oxide for cyclic carbonate was revealed using density functional theory calculations. The noncatalytic reaction occurred via a concerted mechanism, while in the presence of guanidine and tetrabutylammonium iodide (TBAI) co-catalysts, the epoxide ring-opening by nucleophilic attack of an iodide anion was predicted to be the rate-determining step. Guanidine acted as the H-bond donor to activate styrene oxide, facilitating the reaction with a lower activation barrier.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Saikat Khamarui, Sirshendu Ghosh
Summary: Copper nanorods (Cu-NRs) exhibit significant plasmonic behavior and can act as efficient catalysts in redox processes and coupling. A benign decarboxylative approach, utilizing localized surface plasmon resonance (LSPR) assisted catalysis with Cu-NRs, has been developed for the production of alkane analogues from alkyl carboxylic acids under visible light. The catalyst shows a broad substrate scope and high functional group tolerance, without the need for an external oxidant or proton source. A plausible mechanism for this recyclable nano-catalyst has also been proposed based on control experiments.
NEW JOURNAL OF CHEMISTRY
(2024)