Article
Chemistry, Physical
Sarika B. Dhavale, Vithoba L. Patil, Sonali A. Beknalkar, Aviraj M. Teli, Aravind H. Patil, Akhilesh P. Patil, Jae Cheol Shin, Pramod S. Patil
Summary: The study investigated the controlled synthesis of nanostructured NiCo2O4 thin films on stainless steel substrates using a facile and economical chemical bath deposition technique without adding a surfactant or binder. The influence of different solvent compositions on the morphological and electrochemical properties was systematically studied. The NiCo2O4 thin films exhibited different morphologies and electrochemical performances depending on the solvent composition, with potential applications in supercapacitors due to their specific capacitance values and excellent capacitance retention after cycles.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Inorganic & Nuclear
Manpreet Kaur, Prakash Chand, Hardeep Anand
Summary: In this study, four different methods were used to synthesize nickel cobaltite nanostructures, with scanning electron microscopy revealing the distinct morphology acquired from each methodology. Electrochemical performance testing showed that the coprecipitation method produced the highest specific capacity, while significantly enhanced rate-performance was observed with the same method under different current densities.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Engineering, Electrical & Electronic
Jie Jin, Yatang Dai, Jinghua Lu, Xiaoqiang Dai, Ning Tie, Fei Ma, Wei Wang, Linyu Pu, Huan Zhang
Summary: In this study, a NiO/NiCo2O4 needle/sphere nanostructure was synthesized as an electrode material for supercapacitors, showing excellent specific capacitance and cycling stability. The unique composite architecture and rational combination of active materials contributed to the promising performance of this novel structured material.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Review
Energy & Fuels
Xu Wang, Changyi Deng, Xiaodong Hong, Wei Dong, Bing Liang
Summary: This article highlights the research advances of NiCo2O4 and NiCo2O4/graphene composites in supercapacitors. It introduces the controllable synthesis and electrochemical performance of NiCo2O4, as well as the commonly used methods for its preparation. The article also classifies NiCo2O4/graphene composites into two-dimensional and three-dimensional based on the dimension feature of the graphene matrix, and summarizes their design principles, microstructure, and application performance in supercapacitors. Finally, it discusses the existing problems and proposes solving strategies and future perspectives for NiCo2O4 and NiCo2O4/graphene composites.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Multidisciplinary
Luyen Thi Tran, Hoang Vinh Tran, Hue Thi Minh Dang, Anh Van Nguyen, Thuy Hong Tran, Chinh Dang Huynh
Summary: A novel nanostructured electrode material based on ERGO/PANi NWs/AgNFs was fabricated site-specifically onto a Pt microelectrode using a three-step electrochemical procedure, showing high electrochemical activity and biocompatibility. This optimized nanocomposite was used for developing an electrochemical DNA sensor with enhanced signal and a detection limit of 2.70 x 10(-15) M, highlighting its potential for miniaturization and high sensitivity.
Article
Chemistry, Analytical
Lin Zhang, Yu Wang, Yuqiao Wang, Meiling Guo, Zhouyuan Li, Xianbo Jin, Hongzhi Du
Summary: Reliable H2O2 sensors for in situ cellular monitoring under drug stimulation can be developed by using graphene and shape-controlled gold nanostructures. The as-synthesized nanostructured H2O2 sensors showed high sensitivity (5.07×10-4 mA μmol L-1 cm-2) and good detection capability (the lowest detection limit is 4.5 μmol L-1 (S/N = 3)). The electrochemical biosensor demonstrated remarkable sensitivity, accuracy, and rapidity compared with traditional enzymatic detection kits. This technology can be applied to assess the antitumor properties of candidate drugs and inspire developments for personalized health care monitoring and cancer treatment.
Article
Chemistry, Physical
Chunyang Lu, Yangqin Gao, Wei An, Chengcheng Yan, Fengshan Yu, Wenyi Lu, Chunxia Wang, Guoyong Huang
Summary: A facile gas-liquid diffusion method was used to synthesize NiCo2O4 and Fe-doped NiCo2O4 nanoflowers for oxygen evolution reaction (OER) at ambient condition. The nanoflowers exhibited excellent dispersibility and electron transfer, resulting in a high OER activity. By adjusting the ratio of Ni to Fe, a superior OER performance was achieved. This approach offers a facile and efficient way for the large-scale production of high-performance OER catalyst using ternary mixed metal oxides nanostructure.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Physical
Ali Sadeghi, Ali Ghaffarinejad
Summary: In this study, two electrochemical synthesis techniques, cyclic voltammetry (CV) and linear sweep voltammetry (LSV), were used for the first time to synthesize MOF. The LSV method was found to preserve the 3D structure of the nickel foam and enhance catalytic activity. XRD, FTIR, and BET methods were employed to confirm the structural integrity and porous nature of the NiBTC MOF. The modified nickel foam demonstrated great potential in catalytic activity for the hydrogen evolution reaction (HER).
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Materials Science, Multidisciplinary
Zecui Gao, Zhixin Wan, Zhengtao Wu, Xueli Huang, Haiqing Li, Teng Fei Zhang, Paul Heinz Mayrhofer, Qimin Wang
Summary: Transition metal nitrides (TMN) have been widely studied as supercapacitor materials with high specific surface area for energy storage applications. In this study, CrN-Ni composite coatings were prepared using arc ion plating with different Ni contents, and post-deposition treatments with HCl solutions were found to significantly enhance the energy storage performance of the coatings. The coating with 54.2% Ni exhibited the highest specific capacitance after treatment, suggesting that the combination of TMNs with metallic Ni and HCl treatment is an effective strategy for improving the specific surface area and performance of TMN thin film supercapacitors.
MATERIALS & DESIGN
(2021)
Review
Chemistry, Multidisciplinary
Haoyan Cheng, Chenxiao Wang, Dong Qin, Younan Xia
Summary: Galvanic replacement synthesis is a method involving oxidation and dissolution of atoms from a substrate while reducing and depositing a salt precursor on the substrate. It offers advantages over conventional electrosynthesis due to the use of micro/nanostructured materials, which increase surface area and enable intimate mixing with the precursor. The synthesis enables control over the growth pattern of deposited atoms on the substrate, leading to diverse nanomaterials with controllable compositions and shapes.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Review
Chemistry, Multidisciplinary
Haoyan Cheng, Chenxiao Wang, Dong Qin, Younan Xia
Summary: Galvanic replacement synthesis involves the oxidation and dissolution of atoms from a substrate while reducing and depositing a salt precursor with a higher reduction potential on the substrate. Micro/nanostructured materials can be mixed with the salt precursor in a solution phase, increasing the surface area and allowing for controlled growth patterns of the deposited material. This synthesis method has been successfully applied to various substrates, resulting in diverse nanomaterials with controllable compositions and morphologies.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Chemistry, Physical
Norihiro Suzuki, Yuta Fujii, Naoya Ishida, Takeshi Kondo, Makoto Yuasa, Chiaki Terashima, Akira Fujishima
Summary: Porosity was introduced into a EuTiO3 thin film to create a crack-free film with nanopores. The film had a crystallized framework core and an amorphous shell, forming a core-shell structure. The amorphous shell contributed to the ferromagnetism through improved crystal field splitting and enhanced interaction between neighboring Eu2+ ions.
APPLIED SURFACE SCIENCE
(2023)
Article
Energy & Fuels
Foroozan Samimi, Maryam Ghiyasiyan-Arani, Masoud Salavati-Niasari
Summary: A series of Ca-Mn-O based nanostructures were synthesized through a sol-gel procedure assisted by leucine. The effect of Ca:Mn ratio in the synthesis process was examined to study the purity and components of samples. The resulting Ca2Mn3O8/CaMn3O6 nanocomposites showed promising electrochemical hydrogen storage capacity, making them a potential active material in energy storage systems.
Article
Chemistry, Multidisciplinary
Qian Liu, Lisi Xie, Jie Liang, Yuchun Ren, Yuanyuan Wang, Longcheng Zhang, Luchao Yue, Tingshuai Li, Yongsong Luo, Na Li, Bo Tang, Yang Liu, Shuyan Gao, Abdulmohsen Ali Alshehri, Imran Shakir, Philips O. Agboola, Qingquan Kong, Qingyuan Wang, Dongwei Ma, Xuping Sun
Summary: NiCo2O4 nanowire array on carbon cloth (NiCo2O4/CC) is proposed as a highly active electrocatalyst for ambient nitrate (NO3-) reduction to ammonia (NH3). It achieves a high Faradic efficiency of 99.0% and a large NH3 yield up to 973.2 mu mol h(-1) cm(-2). The superior catalytic activity comes from its half-metal feature and optimized adsorption energy due to the existence of Ni in the crystal structure.
Article
Materials Science, Multidisciplinary
Zeming Sun, Mingqi Ge, James T. Maniscalco, Victor Arrieta, Shawn R. McNeal, Matthias U. Liepe
Summary: Combining chemical vapor deposition (CVD) with electrochemical polish (EP) operation is a promising method for producing performance-capable superconducting films. This study investigated the surface characteristics of CVD-grown and EP-polished niobium (Nb) films and found that EP effectively reduces surface roughness. The results suggest a dependence of EP on crystal orientation, providing insights for further optimization of film-based applications.
Article
Chemistry, Physical
Rajalaxmi Sahoo, C. Reshma, D. S. Shankar Rao, C. V. Yelamaggad, S. Krishna Prasad
Summary: This study investigates the influence of the flexible spacer parity of a guest photoactive liquid crystalline dimer on the photonic bandgap features of the cholesteric and twist grain boundary smectic C phases of the host molecule. The results show that the parity of the photoactive dimer affects the width of the photonic bandgap and the blue-shift of the cholesteric phase. Additionally, the parity of the dimer also affects the layer spacing and two-dimensional periodicity of the liquid crystalline phases.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Sara Rozas, Alberto Gutierrez, Mert Atilhan, Alfredo Bol, Santiago Aparicio
Summary: This study presents a multiscale theoretical investigation on the use of bifunctional hydrophobic Deep Eutectic Solvent for carbon capture using tetrapropylammonium chloride, acetic acid, and ethanolamine. The characterization includes nanoscale analysis of CO2 absorption mechanisms and changes in liquid phase properties during gas capture.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Tabouli Eric Da-yang, Alhadji Malloum, Jean Jules Fifen, Mama Nsangou, Jeanet Conradie
Summary: In this study, the potential energy of different glycine tautomers and their interaction with Cu2+ cations was investigated. The results showed that the solvation medium and the presence of Cu2+ cations influenced the stability of glycine tautomers.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Xiaoliang Gou, Nan Ye, Qingqing Han, Junjie Cui, Long Yi Jin
Summary: In this study, amphiphilic rod-coil molecules with rigid DSA parts and flexible oligoether chains were designed and their assembly capacities were investigated. The morphology of the molecular aggregates was influenced by the pH of the solution and UV light, and the aggregates showed adsorption capacity for nitroaromatic compounds.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Shuang Liu, Liyan Shan, Cong Qi, Wenhui Zhang, Guannan Li, Bei Wang, Wei Wei
Summary: Optimizing the design of styrene-butadiene-styrene copolymer (SBS) is crucial for producing cost-effective SBS modifiers and improving road quality. This study examined the influence of SBS content and molecular structure on viscosity and compatibility. The results showed that the viscosity contribution of SBS is determined by its molecular structure and phase morphology.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Artem A. Petrov, Ekaterina A. Titova, Aydar A. Akhmadiyarov, Ilnaz T. Rakipov, Boris N. Solomonov
Summary: This work focuses on the thermochemistry of solvation of azeotropes. The enthalpies of dissolution of azeotropes in different mediums were determined, and the impact of the structure of the azeotropes on their properties in solution was discussed. A correlation between enthalpies of solvation and molar refraction was used to determine the vaporization enthalpies of azeotropes for the first time. The results were found to be consistent with literature data, obtained using direct and calculated methods. These findings contribute to the analysis of the structure-property relationships of azeotropes.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
L. V. Kamaeva, E. N. Tsiok, N. M. Chtchelkatchev
Summary: Understanding the correlations between liquids and solids allows us to predict the thermodynamic parameter range favorable for the formation of intriguing solid phases by studying liquids. In this study, we experimentally and theoretically investigated an Al-Cu-Co system within different composition ranges, and identified high-temperature solid phases. Our findings demonstrated the correlation between the boundaries of different solid phases and undercooling and viscosity in the concentration area.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
R. Aneesh Kumar, S. Jamelah Al-Otaibi, Y. Sheena Mary, Y. Shyma Mary, Nivedita Acharjee, Renjith Thomas, Renjith Raveendran Pillai, T. L. Leena
Summary: In this study, the interactions between doped and pristine coronenes and adenine nucleobases were investigated using Density Functional Theory. The optimal configurations, adsorption energies, charge transfer, and electrical properties of each complex were calculated. It was found that doped coronene had stronger adsorption strength and charge transfer compared to pristine coronene. The stability of the complexes was attributed to non-covalent interactions in the interactive region. The change in electrical conductivity of coronenes after adsorption suggested their sensitivity towards DNA bases. The predicted energy gap and prolonged recovery time for adenine-coronene configurations indicated the potential application of pristine/doped coronene in DNA detection.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Gang Zhou, Yongwei Liu, Biao Sun, Zengxin Liu, Cuicui Xu, Rulin Liu, Qi Zhang, Yongmei Wang
Summary: The CFD-DEM method was used to simulate the dust deposition pattern in the bronchus of anchor digging drivers, revealing the highest dust concentration in the vortex region of the working face. The study also found a positive correlation between dust particle diameter and bronchial deposition rate, and a negative correlation with alveolar deposition rate.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Yan Zhang, Yafei Luo, Lingkai Tang, Mingyan E, Jianping Hu
Summary: This study investigates the effects of different transition metal decorations on B12N12 nanocages on the adsorption properties of nitrosourea drugs using computational methods. The results reveal the presence of weak non-covalent interactions between metals and nanocages, and the interaction between drugs and nanocages plays a significant role in drug adsorption. Compared to free drugs, the adsorption of drugs on nanocages can facilitate electron transfer, reduce energy gaps and chemical hardness, indicating activity at the target site.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
C. I. Alcolado, J. Poblete, L. Garcia-Rio, E. Jimenez, F. J. Poblete
Summary: In this study, the selective oxidation of aromatic aldehydes was investigated using Ru(VI) as a catalyst and hexacyanoferrate (III) as a cooxidant in an alkaline medium. The reaction mechanism involves complex reaction orders for the oxidant and the aromatic aldehyde, while the reaction order for Ru(VI) is one. The proposed mechanism includes two catalytic cycles and the formation and decomposition of complexes. Quantitative structure-activity relationship analysis showed that deactivating groups in the para-position enhance the process.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Inez A. Barbieri, Marcos L. S. Oliveira, Franciele S. Bruckmann, Theodoro R. Salles, Leonardo Zancanaro, Luis F. O. Silva, Guilherme L. Dotto, Eder C. Lima, Mu. Naushad, Cristiano R. Bohn Rhoden
Summary: This study evaluated the adsorption of zolpidem on magnetic graphene oxide and synthesized magnetic graphene oxide adsorbents for zolpidem removal. The best magnetic nanoadsorbent was found to have a removal percentage of 87.07% at specific pH and temperature conditions. The results suggest that the removal of zolpidem is related to the surface chemistry of the adsorbent rather than the surface area of graphene oxide. The adsorbent showed excellent adsorption efficiency and magnetic behavior, making it a promising material for removing zolpidem from aqueous solutions.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Hongyan Huang, Chunquan Li, Siyuan Huang, Yuling Shang
Summary: This study examines the sensitivity of the thermal conductivity of water-based alumina nanofluids to changes in concentration, sphericity, and temperature. The results show that volume fraction and temperature have a significant impact on the thermal conductivity, while sphericity also needs to be considered. A support vector machine regression model was created to analyze the sensitivity of the thermal conductivity to different parameters. The findings indicate that temperature, sphericity, and volume fraction are the most sensitive variables.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Correction
Chemistry, Physical
V. M. Pergamenshchik, T. Bryk, A. Trokhymchuk
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Valentyn Rudenko, Anatolii Tolochko, Svitlana Bugaychuk, Dmytro Zhulai, Gertruda Klimusheva, Galina Yaremchuk, Tatyana Mirnaya, Yuriy Garbovskiy
Summary: This paper reports on the synthesis, structural characterization, spectral and nonlinear-optical properties of glass nanocomposites made of glass forming ionic liquid crystals and nanoparticles. The study reveals that by exciting the nanocomposites within their absorption band, a control over effective optical nonlinearities can be achieved, allowing the modification of the magnitude and sign of the effective nonlinear absorption coefficient. The proposed strategy using metal-alkanoates based glass-forming ionic liquid crystals and nanoparticles shows great potential for the development of nanophotonics and plasmonics technologies.
JOURNAL OF MOLECULAR LIQUIDS
(2024)