Article
Nanoscience & Nanotechnology
Prasanta Jana, Sumit Ray, Diya Goldar, Navya Kota, Sujoy Kumar Kar, Siddhartha Roy
Summary: Porous copper shows attractive properties such as high ductility, good corrosion resistance, high surface area, good thermal and electrical conductivity, etc., making it a material with numerous potential applications. In this work, porous copper samples with different porosities were fabricated using a mixture of copper powder and potassium carbonate powder. The fabricated samples were analyzed in terms of density, phase analysis, microstructural analysis, and determination of elastic constants. The influence of pore shapes and morphologies on the elastic constants was analyzed. The results were compared with different micromechanical models.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Metallurgy & Metallurgical Engineering
Zejun Wang, Yuyuan Zhao
Summary: The effects of five key processing parameters on the real and electroactive surface areas of porous nickel samples produced by the LCS process have been systematically investigated. Pore size, compacting pressure, and sintering temperature have no significant effect on the surface areas. Porosity affects the volumetric real surface area and electroactive surface area, but not the gravimetric real surface area. Metal particle size has a significant impact on the surface areas, with an intermediate amount of fine Ni powder resulting in the highest real surface area and electroactive surface area.
Article
Materials Science, Multidisciplinary
Elaheh Shirjang, Mohammad Reza Akbarpour
Summary: This study successfully produced copper foams with a semi-open cell structure and examined the effects of mechanical milling and filler volume fraction on the performance of the foam. The results showed that longer milling durations resulted in foams with smaller pores and a more homogeneous size distribution, but increased porosity led to reduced strength and energy absorption while increasing the cooling rate of the foam.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Physical
Liangjuan Gao, J. Robert Selman, Philip Nash
Summary: The dynamic contact angle of molten carbonate on porous Ni was measured, and the absorption process was studied under different conditions. The initial filling was found to be capillary-force controlled, while later stages were slowed down by viscous and inertial effects.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Jidsucha Darayen, Orawon Chailapakul, Piyasan Praserthdam, Joongjai Panpranot, Duangamol N. Tungasmita, Yuttanant Boonyongmaneerat
Summary: This study systematically investigates the relationship between electroplating parameters and the pore morphology and internal surface area of copper deposits for electrochemical reduction reactions of CO2. Through microstructural engineering, porous copper electrodes were found to yield higher production rates of acetaldehyde, acetate, and ethanol compared to copper foil electrodes, presenting opportunities for enhancing CO2 reduction reactions.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Physical
Emad E. El-Katori, Mostafa Ahmed, H. Nady
Summary: This study investigates the inhibitory effects of two imidazole derivatives on copper corrosion in a stagnant aerated 1 M HNO3 solution. The findings show that these derivatives work as mixed-type corrosion inhibitors and their inhibitory efficiency depends on concentration. The adsorption of the derivatives on the copper surface forms an inhibitive coating, protecting the surface from corrosion.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Engineering, Biomedical
Reza Noroozi, Farzad Tatar, Ali Zolfagharian, Roberto Brighenti, Mohammad Amin Shamekhi, Abbas Rastgoo, Amin Hadi, Mahdi Bodaghi
Summary: Tissue engineering, a critical interdisciplinary field in regenerative medicine, aims to repair or replace damaged tissues using biomaterials and cell transplantation. Additive manufacturing (AM) has revolutionized the production of complex geometries, advancing bioprinting in generating biomimicking organs and tissues with required porous graded structures. This study experimentally and numerically investigates suitable triply periodic minimal surface structures for manufacturing scaffolds mimicking the heterogeneous nature of bone. The influence of printing direction and material is also explored.
INTERNATIONAL JOURNAL OF BIOPRINTING
(2022)
Review
Materials Science, Multidisciplinary
Weijun Liu, Wanqiu Li, Huiru Wang, Hongyou Bian, Kai Zhang
Summary: This study focuses on the surface modification methods of selective laser melting (SLM) implants to remove unmelted powder particles and improve the biological and mechanical properties of the implants. Chemical and electrochemical methods are commonly used for surface modification, which can enhance the implant performance while minimizing health risks.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Automation & Control Systems
Matthew E. Lynch, Kerisha Williams, Mariana Cabrera, Tommaso Beccuti
Summary: A strategy for finishing lattice surfaces using electrochemical machining process was proposed and demonstrated, resulting in reduction of surface roughness and significant removal of material from internal surfaces. The improvement extended well into the core of the specimen without diminishment, in contrast to an external-only blasting process.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Review
Materials Science, Multidisciplinary
Jierui Mu, Tengteng Sun, Chu Lun Alex Leung, J. P. Oliveira, Yi Wu, Haowei Wang, Hongze Wang
Summary: The accelerated growth of additive manufacturing technologies has helped the expansion of the manufacturing industry, leading to cost savings. However, manufacturing defects still limit the potential applications of AM components. Electrochemical techniques have been considered a promising way to improve surface quality and properties, and their application in AM is gaining attention.
PROGRESS IN MATERIALS SCIENCE
(2023)
Article
Biophysics
Jin Zhu, Baoguo Wang, Yixin Zhang, Tianxiang Wei, Tao Gao
Summary: Bioelectrical interfaces made of living electroactive bacteria (EAB) provide a unique opportunity to bridge biotic and abiotic systems, enabling the reprogramming of electrochemical biosensing. The engineering of EAB cells for biotarget recognition, sensing circuit construction, and electrical signal routing has demonstrated impressive capabilities in designing active sensing elements and developing electrically conductive interfaces on electrodes. Integration of engineered EAB into electrochemical biosensors can revolutionize bioelectronics research, with applications in environmental and health monitoring, green manufacturing, and other analytical fields.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Electrochemistry
Chenhao Zhao, Ningsong Qu, Xiaochuan Tang
Summary: The paper proposed a confined electrochemical finishing process with a coaxial electrolyte flushing manner to remove the internal surface asperity in additive manufacturing. This process can achieve higher material removal and better surface finishing enhancement, effectively addressing the challenges of adhered powders and undesirable surface quality in AM technology.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Analytical
Ji Lu, Xiaotian Zhou, Yi Li, Min Yu, Siyuan Fu, Zhiling Qu, Yanling Li, Jinfeng Miao, Yuanyuan Xu
Summary: To achieve early diagnosis of COVID-19, an electrochemical biosensor-combined magnetic separation system with copper nanoflower-triggered cascade signal amplification strategy was developed. The system utilizes magnetic beads as the recognition element to capture the conserved sequence of SARS-CoV-2. The copper nanoflowers, serving as a source of copper ions, catalyze the azide-alkyne cycloaddition reaction through the connection of the SARS-CoV-2 conserved sequence. This amplifies the signal for the quantitative analysis of SARS-CoV-2, providing a powerful tool for COVID-19 diagnosis and the early monitoring of other infectious diseases.
Article
Materials Science, Coatings & Films
Radka Gorejova, Renata Orinakova, Zuzana Orsagova Kralova, Tibor Sopcak, Ivana Sisolakova, Marek Schnitzer, Miroslav Kohan, Radovan Hudak
Summary: Successful acceptance of biomaterials relies on the interaction between their surface and the biological components of the host environment. Surface treatment, such as electrochemical deposition of ceramic coatings, can enhance the integration of orthopedic scaffolds. This study focuses on depositing HAp coatings on additively manufactured titanium specimens with a porous structure.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Pulok Das, Nirmalya Sankar Das, Kausik Sardar, Brahami Das, Ashadul Adalder, Kalyan Kumar Chattopadhyay
Summary: Various CuBO2 nanostructures with different shapes and properties were successfully synthesized using different methods. The samples were thoroughly characterized using various techniques, and it was found that the CuBO2 nanoparticles synthesized via sol-gel method showed the highest aspect ratio and exhibited pseudo capacitive nature. The electrochemical properties of the samples were correlated with their aspect ratio, surface area, and elemental variation. This study not only expands the applications of CBO, but also provides insight into its electrochemical behavior.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Engineering, Mechanical
Chen Liang, Yuyuan Zhao
Summary: Research on the impact response of Al matrix syntactic foams revealed that layered structures exhibit lower impact peak stress and higher ductility, with the energy absorption capacity being the sum of the constituent layers. The analytical model developed effectively captures key characteristics of stress fluctuation during impact, with predictions closely aligning with experimental results.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2021)
Article
Engineering, Chemical
Hua Li, Yan Gao, Yuyuan Zhao
Summary: The study found that the expansion of silica-gel beads is caused by high pressure steam generated from water confined in the nano-pores. This finding will help to control the pore structure manufactured by the silica-gel bead infiltration method more precisely.
Article
Engineering, Environmental
Roberto Sommerville, Pengcheng Zhu, Mohammad Ali Rajaeifar, Oliver Heidrich, Vannessa Goodship, Emma Kendrick
Summary: With the rise of e-mobility, there is a pressing need for safe, environmentally friendly, and economically feasible disposal and recycling strategies for end-of-life lithium-ion batteries (EoL LIBs). A qualitative assessment matrix named SWAVE is proposed to compare material importance and value in EoL LIBs, highlighting the need for technological advancements and diversified recycling methods in the industry.
RESOURCES CONSERVATION AND RECYCLING
(2021)
Review
Polymer Science
Jean E. Marshall, Anna Zhenova, Samuel Roberts, Tabitha Petchey, Pengcheng Zhu, Claire E. J. Dancer, Con R. McElroy, Emma Kendrick, Vannessa Goodship
Summary: This literature review discusses the solubility and processability of the fluoropolymer polyvinylidine fluoride (PVDF) and its applications in various sectors like construction, automotive engineering, and electronics. The challenges in processing and reusing PVDF due to its limited solubility are also highlighted.
Article
Electrochemistry
Pengcheng Zhu, Yuyuan Zhao
Summary: The pursuit of better electrochemical sensors requires new designs and materials. The concept of 'limiting current sensors' has been applied to ion detection in aqueous solutions, resulting in a prototype with improved sensitivity and detection performance. The sensor design shows potential for detecting other ions or molecules.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Wenhui Luo, Yang Wang, Liuxiong Luo, Shen Gong, Mengni Wei, Yixuan Li, Xueping Gan, Yuyuan Zhao, Zhenghong Zhu, Zhou Li
Summary: This work presents the rational design and fabrication of a highly efficient, cost-effective, and environmentally friendly non-noble-metal bifunctional catalyst for electrocatalytic overall water splitting. The catalyst exhibits excellent catalytic performance, achieving high current density at low cell voltage, and can be reactivated after simple treatment.
Article
Chemistry, Physical
Xi Zhang, Zhu Xiao, Ziqi Xia, Shuo Han, Xiangpeng Meng, Yuyuan Zhao, Zhou Li, Qian Lei
Summary: Cu-TiNi composites with different TiNi volume percentages were prepared, and their microstructure, thermal and mechanical properties were analyzed. The results showed that diffusion of elements occurred at the interface and formed a diffusion layer. TiNi particles were uniformly distributed in the Cu matrix and had a well-bonded interface. The hardness and yield strength increased with the increase of TiNi volume percentage, while the thermal expansion coefficient showed an opposite trend.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Pengcheng Zhu, Peter R. Slater, Emma Kendrick
Summary: The development of next-generation electrodes is crucial for improving the performance of lithium-ion batteries and achieving zero emissions. The architecture and design of electrodes have a significant impact on their properties, and understanding the relationship between electrode architecture, properties, and performance is essential. Additionally, the implementation of optimized electrode architectures relies on manufacturing capability, and different manufacturing processes have their merits and limitations. This work provides a guideline for future electrode design and highlights the potential advantages and limitations of different manufacturing methodologies.
MATERIALS & DESIGN
(2022)
Article
Mechanics
M. Alteneiji, K. Krishnan, Z. W. Guan, W. J. Cantwell, Y. Zhao, G. Langdon
Summary: This paper presents experimental and numerical studies on the dynamic behavior of aluminium matrix syntactic foams. The compressive crush behavior of the material is found to be strain-rate sensitive. The behavior under high strain-rate loadings and the underlying failure mechanisms are analyzed to evaluate the effective mechanical performance. The numerical model is verified and the predictions are in good agreement with the experimental results.
COMPOSITE STRUCTURES
(2023)
Article
Chemistry, Multidisciplinary
Pengcheng Zhu, Elizabeth H. Driscoll, Bo Dong, Roberto Sommerville, Anton Zorin, Peter R. Slater, Emma Kendrick
Summary: The increasing quantity of spent lithium-ion batteries has become a significant waste-management challenge. Aluminium and copper current collectors, which make up over 15% of the battery's weight, can be directly reused to reduce waste and provide a renewable source of aluminium and copper. This study demonstrates the successful reuse of current collectors from commercial spent batteries for cathodes and anodes, but caution is needed for aluminium collectors at high C rates. The research highlights the importance of surface morphology in current collectors.
Article
Materials Science, Multidisciplinary
Xingrui Jiang, Kesong Miao, Hao Wu, Rengeng Li, Yiping Xia, Min Chen, Yuyuan Zhao, Jinchuan Jie, Guohua Fan
Summary: The mechanical properties of bi-layered Cu-Pb-Sn bronze/steel sheets can be improved by optimizing the microstructure of the bronze. Contrary to common belief, the segregation of the Pb phase can increase the yield strength and fracture elongation of Cu-Pb-Sn alloys. Additionally, the formation of multiple cracks helps to accommodate the deformation incompatibility of the bi-layered structure.
MATERIALS CHARACTERIZATION
(2023)
Article
Materials Science, Multidisciplinary
Zejun Wang, Yuyuan Zhao
Summary: Porous metals with high surface area show great potential for non-enzyme glucose detection. A porous nickel with both macro and microscale pores has been produced using the LCS and DHBT processes. It exhibits higher electroactive surface area and current density compared to other nickel substrates, and its glucose measurement sensitivity and detection limit are impressive due to its porous nanostructure and highly effective surface area.
Article
Metallurgy & Metallurgical Engineering
Zejun Wang, Yuyuan Zhao
Summary: The effects of five key processing parameters on the real and electroactive surface areas of porous nickel samples produced by the LCS process have been systematically investigated. Pore size, compacting pressure, and sintering temperature have no significant effect on the surface areas. Porosity affects the volumetric real surface area and electroactive surface area, but not the gravimetric real surface area. Metal particle size has a significant impact on the surface areas, with an intermediate amount of fine Ni powder resulting in the highest real surface area and electroactive surface area.
Article
Materials Science, Multidisciplinary
Bo Dong, Javier Castells-Gil, Pengcheng Zhu, Laura L. Driscoll, Emma Kendrick, Phoebe K. Allan, Peter R. Slater
Summary: Through dual cation substitution, the disordered rocksalt structure Li1.2Ni0.4Ti0.4O2 is transformed into a new cation ordered layered phase Li1.2Ni0.4Mo0.2Mg0.2O2, with higher performance. Li1.2Ni0.4Mo0.2Mg0.2O2 exhibits a capacity of 190 mA h g(-1) after 10 cycles, compared to 105 mA h g(-1) for Li1.2Ni0.4Ti0.4O2.
MATERIALS ADVANCES
(2023)
Article
Chemistry, Physical
M. P. Stockham, B. Dong, M. S. James, P. Zhu, E. Kendrick, P. R. Slater
Summary: A co-doped high entropy lithium garnet material with high conductivity and stability is reported, which can be rapidly sintered and densified from starting materials, exhibiting high room temperature conductivity and insensitivity to furnace ramp rates and dwell times.