Article
Chemistry, Physical
Hira Ilyas, Iftikhar Ahmad, Muhammad Asif Zahoor Raja, Muhammad Bilal Tahir, Muhammad Shoaib
Summary: The study focuses on investigating the heat transfer phenomena in nanofluidic system with Cu - H2O over stretched porous media using a stochastic solver and Levenberg-Marquardt backpropagation networks. Mathematical models are described in PDEs and reduced to ODEs for analysis.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Monther Q. Alkoshab, Eleni Thomou, Munzir H. Suliman, Q. A. Drmosh, Ismail Abdulazeez, Konstantinos Spyrou, Wissam Iali, Khalid Alhooshani, Turki N. Baroud
Summary: Modulating the Cu/CuxO amount and metal/metal oxide ratio enhanced the efficiency and selectivity of electrochemical CO2 reduction. The optimized multicomponent system exhibited rare high selectivity and low overpotential performance while suppressing HER.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Junhua Sun, Xiuxian Zhao, Riming Hu, Guoxin Sun, Heng Zhao, Wenshuo Liu, Zhushuang Bai, Xuchuan Jiang, Yu Cui
Summary: A novel cellulose phosphonate/polyethyleneimine composite (MCCP-PEI) with abundant nano-porous structure, strong chelating sites, and excellent hydrophilicity was successfully prepared. MCCP-PEI showed rapid adsorption of Cu(II) and Pb(II) heavy metal ions and exhibited saturated adsorption capacities of 250.0 and 534.7 mg center dot g- 1, respectively. The adsorption mechanism was found to be chemical complexation and electrostatic attraction, with the phosphonate group playing a key role.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Mechanics
K. Thirumalaisamy, Sivaraj Ramachandran
Summary: The objective of this study was to investigate the energy transmission rate's features of two types of nanofluids in a tilted square porous cavity under the influence of heat source/sink. The results showed that the shape and volume fraction of nanoparticles significantly affect the heat transfer rate. Moreover, the proper combination of nanoparticles can enhance the heat transfer characteristics of base fluids.
Article
Chemistry, Multidisciplinary
Zhenfu Zhu, Xiaoyuan Liang, Haoyu Luo, Liying Wang, Yang Gao, Xuesong Li, Xijia Yang, Wei Lu
Summary: A flexible self-charging energy system has been developed, which can be worn on the body to continuously collect and store environmental energy, and provide stable electricity for electronic devices.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Jianlong Huang, Fengjiao Guo, Zhiyong Guo, Jianbang Chen, Bin Dai, Feng Yu
Summary: A series of ammonium-containing fluoroiodates were synthesized using a fluorine-oxygen substitution strategy, and their crystal structures and properties were investigated. The compounds exhibited wide band gaps and a good second harmonic generation response, contributing to the structural diversity of iodates and the design of new functional materials.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Jianlong Huang, Fengjiao Guo, Zhiyong Guo, Jianbang Chen, Bin Dai, Feng Yu
Summary: A series of ammonium-containing fluoroiodates with isolated [IO2F2] units were successfully synthesized, showing their crystal structures and optical properties, which provide important references for the design of new functional materials.
INORGANIC CHEMISTRY
(2022)
Article
Thermodynamics
Rongchun Li, Jipeng Luo, Huimin Yan, Hui Zheng, Rongmin Wei, Min Yang, Xiangling Gu, Zhicheng Tan, Quan Shi
Summary: In this study, two metal-organic coordination compounds were designed and synthesized, and their magnetic susceptibilities and heat capacities were measured, revealing anti-ferromagnetic interaction and Schottky effect in the compounds. The obtained thermodynamic properties provide a significant basis for further investigating the functional properties of these compounds.
THERMOCHIMICA ACTA
(2021)
Article
Materials Science, Multidisciplinary
Shuaiqiang Bi, Kangwei Xu, Guosheng Shao, Ke Yang, Jiajia Tian
Summary: Marine biofouling is a global challenge that requires urgent solutions. Researchers have developed a mechanically robust Al2O3-PDMS-Cu composite coating with strong adhesive strength and remarkable antifouling performance. This coating, fabricated by infiltrating PDMS into plasma-sprayed micro/nano-scaled porous Al2O3-Cu coating, shows improved surface hydrophobicity and outstanding mechanical durability.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Energy & Fuels
Kashif Ali, Sohail Ahmad, Kottakkaran Sooppy Nisar, Aftab Ahmed Faridi, Muhammad Ashraf
Summary: Hybrid nanoliquids exhibit improved physical strength, mechanical resistance, thermal conductivity, and chemical stability compared to individual nanoliquids. The study found that hybrid nanofluids have the potential to significantly increase shear stress levels, up to 57% in some cases. Caution must be exercised in using these fluids, particularly in applications where control over shear stress is necessary.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Hong-Ping Lin, Ying-Fan Liu, Ying-Xuan Liu, Zi-Xian Yang, Jong-Liang Lin
Summary: Various experimental and theoretical techniques were used to investigate the reaction mechanisms and bonding structures of 3- and 2-bromopropanoic acids on Cu(100) and oxygen-precovered Cu(100). Differences in reaction pathways and products were observed under different conditions.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Multidisciplinary
Xiangcheng You
Summary: This study investigates the nanoparticle sphericity of Cu-Al2O3-H2O hybrid nanofluid flows in porous medium-filling inclined channels. It provides analytical solutions for the velocity and temperature fields, considering various parameters such as mixed convection variable, Peclet number, channel tilt angle, and nanoparticle sphericity and volume fractions. The findings show that the effective thermal conductivity increases with increasing temperature for the same nanoparticle volume fractions. Nanoparticles with smaller average sphericity size have a greater specific surface area and enhance internal heat transfer. Additionally, increasing nanoparticle volume fraction leads to a slower but still significant enhancement of heat transfer.
Article
Thermodynamics
N. Alilat, F. Sastre, A. Martin-Garin, A. Velazquez, A. Bairi
Summary: The study quantifies heat transfer around a conical antenna using a H2O-Cu nanofluid saturated by a highly porous medium. The thermal conductivity ratio of the porous materials to water ranges from 4 to 41.2. The conical enclosure's aspect ratio and base inclination angle are varied to investigate their effects on heat transfer. A correlation is provided to determine the average Nusselt number. The results show that heat transfer is enhanced when the cone is tilted, reaching maximum when it is vertical with the top pointing down.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Physics, Applied
Moriyuki Kanno, Tsuyohito Ito, Yoshiki Shimizu, Kazuo Terashima
Summary: MOFs have attracted research attention for their controllable morphology in various applications. By adding specific components, the structure of MOFs can be altered, as demonstrated in this study where a new three-dimensional structure was synthesized through plasma pretreatment.
PLASMA PROCESSES AND POLYMERS
(2021)
Article
Chemistry, Multidisciplinary
Gulshan Singh, C. M. Nagaraja
Summary: This study presents a strategic integration of noble metal-free Cu(I) catalytic sites with a nitrogen-rich, CO2-philic covalent triazine framework for the capture and fixation of CO2 into valuable chemicals. The catalyst showed good performance, high recyclability, and chemical stability.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Chemistry, Inorganic & Nuclear
Vaibhav Bedi, Dipendu Mandal, Zahid Hussain, Shi-Ming Chen, Yile Wu, Zheng-Wang Qu, Stefan Grimme, Douglas W. Stephan
Summary: The reaction of (tBuO(2)CN)(2) with 9-BBN leads to the formation of a bicyclic heterocyclic compound, while its reactions with BF3 or [Et3Si][B(C6F5)(4)] result in the isolation of different compounds. Computational studies reveal that the steric and electronic properties of the Lewis acid are important in the formation of one of the compounds.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Chisa Itoh, Haruka Yoshino, Taku Kitayama, Wataru Kosaka, Hitoshi Miyasaka
Summary: A new synthetic route for constructing functional paddlewheel diruthenium(II,II) complexes was developed, utilizing Schiff base condensation reactions. The attached Schiff base groups significantly affected the electronic states of the resulting complexes, as revealed by cyclic voltammetry and DFT calculations.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Danrui Ni, Haozhe Wang, Xianghan Xu, Weiwei Xie, Robert J. Cava
Summary: A layered rhombohedral polymorph of indium(iii) triiodide is synthesized at high pressure and temperature. It has an orange color, which is different from ambient pressure InI3, which has a monoclinic molecular structure and a light-yellow color.
DALTON TRANSACTIONS
(2024)
Review
Chemistry, Inorganic & Nuclear
Juan Carlos Perez-Sanchez, Raquel P. Herrera, M. Concepcion Gimeno
Summary: Gold(II) complexes have been less utilized in catalysis compared to their gold(I) and gold(III) counterparts. However, gold(II) complexes offer potential in homo-coupling and cross-coupling reactions, as they are more easily accessible through simplified oxidation and reduction processes. Gold(II) exhibits characteristics of both soft acid gold(I) and hard acid gold(III). This review explores the unique reactivity and potential applications of gold(II) species, highlighting their significance in catalytic transformations.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Nighat Yousuf, Yanping Ma, Qaiser Mahmood, Wenjuan Zhang, Yizhou Wang, Hassan Saeed, Wen-Hua Sun
Summary: In this study, a series of structurally rigid cyclooctyl-fused iminopyridine iron complexes were synthesized and used with methylaluminoxane for isoprene polymerization. The extent of steric hindrance of the ligand framework was found to significantly affect catalytic performance, with less hindrance leading to better activity and stability.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Chenghao Song, Huiwei Du, Menglei Xu, Jie Yang, Xinyu Zhang, Jungan Wang, Yuanfang Zhang, Chengjun Gu, Rui Li, Tao Hong, Jingji Zhang, Jiangying Wang, Yongchun Ye
Summary: This study improves the performance of perovskite solar cells by using a dual-hole transport layer strategy. This strategy enhances the charge transfer efficiency of the transport layer, reduces charge recombination, and improves the quality of the perovskite film layer. Ultimately, the stability of the device is enhanced.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Mahender Singh, Aakash Yadav, Ranjit Singh, Chullikkattil P. Pradeep
Summary: A new aryl selenonium polyoxometalate hybrid was developed and compared with an aryl sulfonium polyoxometalate hybrid in terms of their photocatalytic properties. It was found that the aryl selenonium hybrid exhibited better catalytic performance, which could be attributed to the larger atomic radii of selenium stabilizing the photogenerated electron-hole pair more efficiently. Additionally, the generation of elemental selenium through cleavage of C-Se bonds during catalysis was observed.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Yuhan Xie, Boyu Dong, Xuemin Wang, Siyuan Wang, Jinxi Chen, Yongbing Lou
Summary: This study successfully fabricated visible-light-responsive three-dimensional core-shell CoSe2/ZnIn2S4 heterostructures and achieved attractive activity in photocatalytic hydrogen evolution. The presence of CoSe2 improved light absorption and accelerated charge transfer kinetics. The strong interaction between CoSe2 and ZnIn2S4 reduced charge recombination, further enhancing photocatalytic activity for hydrogen evolution.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Andre L. de O. Batista, Joao Marcos T. Palheta, Mauricio J. Piotrowski, Celso R. C. Rego, Diego Guedes-Sobrinho, Alexandre C. Dias
Summary: This study presents a simulation protocol that provides a solid foundation for exploring two-dimensional materials. Using the TiBr2 2H monolayer as an example, the study reveals its promising properties for optoelectronic and valleytronic applications, including its stability, spin-orbit coupling effects, and optical helicity selection rule.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Jiang Jiang, Zi-Wei Li, Zhi-Zhuan Zhang, Bin Tan, Zhao-Feng Wu, Xiao-Ying Huang
Summary: In this work, two metal organic frameworks (MOFs) containing {Cu2I2} clusters, Eu-CuI-INA and Sr-K-CuI-INA, were synthesized and characterized. Both materials have a three-dimensional structure with {Cu2I2} clusters coordinated by INA(-) ligands and Eu3+ or Sr2+ ions. The Sr-K-CuI-INA material exhibited sensitive fluorescence sensing behaviors towards cysteine and nitro-bearing molecules, showing potential applications in bio and explosive molecule sensing. This work provides a good reference for designing fluorescent MOF probes containing CuI molecules.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Zhiya Lin, Jiasheng Wu, Qianwen Ye, Yulong Chen, Hai Jia, Xiaohui Huang, Shaoming Ying
Summary: Na-ion batteries (NIBs) have attracted great interest as a potential technology for grid-scale energy storage due to the wide distribution, low cost, and environmental friendliness of sodium resources. However, their implementation is hindered by low rate capability and cycling stability caused by the large ionic size of Na+. In this study, a three-dimensional nanoarchitectured coral-like CoSe2@N-doped carbon (CL-CoSe2@NC) was synthesized, and it exhibited improved sodium storage properties with better electrode kinetics and a stable SEI film.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Ya-Qiong Zhang, Yu Zhang, Guoping Zeng, Rong-Zhen Liao, Man Li
Summary: The mechanism and selectivity of CO2 reduction under visible light were investigated using density functional calculations. The results showed that a tetradentate PNNP-type Iridium(III) complex exhibited high activity and selectivity in the reaction.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Sanyukta Ghosh, Shubhanth Jain, Soumya Ranjan Mishra, Gerda Rogl, Peter Rogl, Ernst Bauer, B. S. Murty, A. Govindaraj, Ramesh Chandra Mallik
Summary: In this study, reduced graphene oxide (rGO) was uniformly dispersed in the In0.5Co4Sb12 bulk material by ultrasonication, which effectively reduced the lattice thermal conductivity and improved the thermoelectric efficiency.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Mika Takeuchi, Yutaka Amao
Summary: This study developed an effective visible-light driven system for fumaric acid production using renewable resources such as biomass derivatives, providing an alternative to the current petroleum-based synthesis methods.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Juan Jian, Meiting Wang, Zhuo Wang, Jingwen Meng, Yuqin Yang, Limin Chang
Summary: Developing low-cost and self-supported bifunctional catalysts is crucial for highly efficient water splitting devices. In this study, nano-NiFe2O4 was directly grown onto iron foil surface and Sn4+ was introduced into the NiFe2O4. The resulting Sn-NiFe2O4/IF showed low overpotentials and high current densities during oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), making it a promising catalyst for large-scale hydrogen production.
DALTON TRANSACTIONS
(2024)