Article
Materials Science, Coatings & Films
Alessia Bruera, Pietro Puddu, Stephan Theimer, Maria Villa-Vidaller, Alexander List, Giovanni Bolelli, Frank Gaertner, Thomas Klassen, Luca Lusvarghi
Summary: This study investigates the adhesion of cold-sprayed copper particles onto differently adjusted hardness and roughness values of AISI 304 stainless steel surfaces. With SEM analysis and nano-indentation tests, it was found that grit-blasting causes severe plastic deformation of the surface, while vacuum annealing can restore the original hardness. The adhesion of cold-sprayed copper particles was found to be higher on roughened and softened substrates than on polished surfaces.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Chemistry, Physical
Gulnur Kalimuldina, Arailym Nurpeissova, Assyl Adylkhanova, Nurbolat Issatayev, Desmond Adair, Zhumabay Bakenov
Summary: In this study, conductive and flexible CuS films with unique hierarchical nanocrystalline branches were successfully fabricated on three-dimensional porous Cu foam using a simple solution processing method without the need for binders and conductive agents. The resulting CuS/Cu foam electrodes exhibited reasonable capacity and excellent cyclability attributed to the unique 3D structure of the current collector and hierarchical nanocrystalline branches providing fast diffusion and a large surface area.
Article
Chemistry, Multidisciplinary
Yanmin Sun, Rui Tan, Zhouzheng Jin, Yiming Zhang, Xiaoyun Li, Qi Cai, Jun Nan, Dan Liu, Haibin Yu, Jianzhou Gui
Summary: Yolk-shell structures are widely used in catalysis and energy storage. In this study, Mn2+ doped hierarchical CuS yolk-shell microspheres were synthesized and the influence of reaction time on their structure and morphology was investigated. A rational phenomenological approach was proposed to describe the formation mechanism of the yolk-shell structures, and it was found that Mn2+ doping improved the photoreduction performance.
Article
Chemistry, Physical
Hui Li, Yannan Sun, Zhe Wang, Shiyi Wang
Summary: In this study, a superhydrophobic surface was created on a copper substrate through a dealloying-forming process and solution immersion method. The resulting surface exhibited excellent superhydrophobic properties and potential characteristics such as non-sticking, self-cleaning, anti-corrosion, and stability.
Article
Engineering, Electrical & Electronic
Guifa Li, Haiquan Luo, Zengxiang Dong, Hui Wang, Jian Wang, Ping Peng
Summary: This study investigated the effects of silver (Ag) modification on reduced graphene oxide (rGO) to enhance the conductivity of rGO/copper composite. Experimental results showed that Ag ions deposited on rGO formed floccule of Ag deposits covering the surface of rGO, resulting in a more uniform microstructure with fewer defects in rGO@Ag/Cu. The conductivity and electrical contact resistance of rGO@Ag/Cu composite were found to be better than that of rGO/Cu, indicating that Ag modification enhances the interface bonding strength and improves the electrical properties of the composite.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Review
Chemistry, Multidisciplinary
Marlisa M. Hagemann, Erik D. Hedegard
Summary: Lytic polysaccharide monooxygenases (LPMOs) are copper enzymes that can enhance the breakdown and utilization of recalcitrant polysaccharides such as cellulose. The theoretical investigations on the mechanism of LPMOs provide insights into their catalytic reactions and help answer important questions.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Yang He, Jiqiang Wang, Yongda Yan, Yanquan Geng
Summary: This study investigates the fabrication of nanogrooves on single-crystal copper using dynamic lithography and explores the effect of laser spot positions on energy dissipation and nanogroove properties. The findings suggest that optimal laser positioning can result in regular nanogrooves and enhanced Raman signals.
Article
Materials Science, Coatings & Films
Naveen Manhar Chavan, Prita Pant, G. Sundararajan, P. Suresh Babu
Summary: It is well known that post treatments are necessary for cold sprayed coatings to achieve properties similar to their bulk counterparts, even with high pressure cold spray. In this study, high energy infrared emitters were used as a heating tool for post treating cold sprayed copper based coatings. The influence of heating power density and exposure duration on coating properties and microstructure was comprehensively explored. Pure copper coatings responded well to the mobile post treatment, showing improved microstructure and properties comparable to or better than furnace heat treatment. However, Cu-Al alloy coatings showed less favorable response to both infrared and furnace post treatments, which is discussed based on microstructural observations.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Physical
Sulakshana Shenoy, Kartick Tarafder, Kishore Sridharan
Summary: The study reported the photocatalytic activity of NiAg NPs embedded on hierarchical ZnO structures, showing that the synergistic effect of the bimetallic NPs on ZnO led to enhanced photocatalytic performance. Experimental and computational results confirmed the improved photocatalytic activity of NiAg-ZnO.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Inorganic & Nuclear
Ankica Saric, Martina Vrankic, Dirk Luetzenkirchen-Hecht, Ines Despotovic, Zeljka Petrovic, Goran Drazic, Franz Eckelt
Summary: Hydrothermal synthesis of ZnO particles was carried out in pure aqueous solution and aqueous NaOH solution. The presence of NaOH affected the growth mechanism and photocatalytic performance of ZnO structures. The formation of ZnO nanostructures was influenced by the interaction through O-H hydrogen bonds in different solutions.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Analytical
Zhenting Zhao, Yongjiao Sun, Yueyun Huang, Jiarui Jin, Xiaohui Wei, Weiping Gong, Jie Hu, Yong Chen
Summary: An ultrasensitive electrochemical glucose sensor was developed by synthesizing in situ grown nanowires and cobalt oxide, with significantly improved electrochemical properties, wide linear range, and fast response-recovery time. The sensor also exhibits good reproducibility, long-term stability, and anti-bending property for glucose detection, making it a useful tool for enzymeless glucose monitoring in real serum samples.
MICROCHEMICAL JOURNAL
(2021)
Article
Electrochemistry
Mahmoud Roushani, Hadi Hosseini, Zeinab Hajinia, Zeinab Rahmati
Summary: The development of advanced electrode materials based on hollow metal hydroxide nanosheets/carbonaceous nanostructures with unique physical/chemical properties has attracted immense attention. A novel metal hydroxide nanosheet/carbonaceous nanostructure has been successfully designed for high performance cortisol sensing, showing excellent sensitivity and selectivity.
ELECTROCHIMICA ACTA
(2021)
Article
Energy & Fuels
Maofeng Zhang, Xiaonan Liu, Miaolian Ma, Gang Ni, Zhenjie Sun, Jiaqin Liu, Yucheng Wu
Summary: By improving the electrochemical properties of metal oxides/hydroxides through unique microstructure designing and active metal-ion doping, the synthesized electrode material showed excellent electrochemical performance with high specific capacitance, remarkable rate performance, and outstanding cycling performance, demonstrating great application prospects in energy storage devices.
Article
Engineering, Chemical
Ling Shao, Na Xue, Weiwei Li, Song Liu, Zhibiao Tu, Yingwei Chen, Jitang Zhang, Sheng Dai, Qijie Liu, Xinxing Shi, Tianle Wang, Mengliang Chen, Yingqi Huang, Feilong Xu, Liu Zhu
Summary: A solid-state cold-spray technique was used to deposit copper-coated graphite reinforced copper-based composite coatings on an aluminum alloy 6061 T6 substrate. The optimum process parameters of the cold-sprayed coatings were determined based on surface roughness, thickness, and adhesion. The results showed that the coating with the lowest surface roughness, maximum thickness, and highest adhesion was obtained at 800 degrees C, 5.5 MPa.
Article
Chemistry, Analytical
Feifei Wang, Junliang Du, Hua Zhou, Na Chang, Jingyi Kang, Xuemei Wang, Xinzhen Du
Summary: Flower-like hierarchical cobalt nickel oxide nanoflakes with porous structure were successfully fabricated on Nitinol fiber substrate using hydrothermal reaction and annealing treatment, exhibiting outstanding performance for selective extraction of PAHs. After parameter optimization, the method showed good linearity, low LODs, and high stability over 260 extraction-desorption cycles.
ANALYTICA CHIMICA ACTA
(2022)
Article
Chemistry, Multidisciplinary
Arunava Jha, Sudipta Kumar Sarkar, Dipayan Sen, K. K. Chattopadhyay
Article
Chemistry, Multidisciplinary
Uttam Kumar Ghorai, Subhajit Saha, Nilesh Mazumder, Nirmalya S. Das, Diptonil Banerjee, Dipayan Sen, Kalyan K. Chattopadhyay
Article
Chemistry, Physical
Arunava Jha, Rajarshi Roy, Dipayan Sen, Kalyan K. Chattopadhyay
APPLIED SURFACE SCIENCE
(2016)
Article
Chemistry, Physical
Bikram Kumar Das, Dipayan Sen, K. K. Chattopadhyay
Article
Chemistry, Multidisciplinary
Karamjyoti Panigrahi, Swati Das, Subhajit Saha, Biswajit Das, Dipayan Sen, Promita Howli, Kalyan Kumar Chattopadhyay
Article
Materials Science, Multidisciplinary
Supratim Maity, Nirmalya Sankar Das, Saswati Santra, D. Sen, Kalyan Kumar Chattopadhyay
CURRENT APPLIED PHYSICS
(2016)
Article
Spectroscopy
Rajarshi Roy, Nilesh Mazumder, Gundam Sandeep Kumar, Hitesh Mamgain, Uttam Kumar Ghorai, Dipayan Sen, Kalyan Kumar Chattopadhyay
JOURNAL OF RAMAN SPECTROSCOPY
(2016)
Article
Chemistry, Multidisciplinary
Rajarshi Roy, Ranjit Thapa, Gundam Sandeep Kumar, Nilesh Mazumder, Dipayan Sen, S. Sinthika, Nirmalya S. Das, Kalyan K. Chattopadhyay
Article
Chemistry, Physical
Bikram Kumar Das, Dipayan Sen, K. K. Chattopadhyay
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2016)
Article
Chemistry, Multidisciplinary
Madhupriya Samanta, Uttam Kumar Ghorai, Biswajit Das, Promita Howli, Swati Das, Dipayan Sen, Kalyan Kumar Chattopadhyay
Article
Chemistry, Physical
Dipayan Sen, Piotr Blonski, Michal Otyepka
JOURNAL OF PHYSICAL CHEMISTRY C
(2019)
Article
Materials Science, Multidisciplinary
Dipayan Sen, Gour Jana, Nitin Kaushal, Anamitra Mukherjee, Tanusri Saha-Dasgupta
Article
Physics, Multidisciplinary
Dhani Nafday, Dipayan Sen, Nitin Kaushal, Anamitra Mukherjee, Tanusri Saha-Dasgupta
PHYSICAL REVIEW RESEARCH
(2019)
Article
Chemistry, Multidisciplinary
P. Bhowmick, D. Banerjee, S. Santra, D. Sen, B. Das, K. K. Chattopadhyay
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)