Article
Physics, Multidisciplinary
Tariq Iqbal, Syeda Kalsoom Zahra, M. Abdul Rauf Khan, Muhammad Shafique, Syed Raza Ali Raza, Saiqa Andleeb
Summary: Zinc oxide nanostructures were successfully synthesized using a microplasma electrochemical technique in this study, and their morphological, structural, optical, and electrical properties were characterized. The results showed that the ZnO nanostructures exhibited high crystallinity, semiconductor behavior, and strong antibacterial and photocatalytic activities. This research contributes to the development of low-cost and effective materials for removing microorganisms and toxic industrial dyes, which pose a serious threat to terrestrial and aquatic ecosystems.
Article
Chemistry, Analytical
B. Patella, R. R. Russo, A. O'Riordan, G. Aiello, C. Sunseri, R. Inguanta
Summary: The study introduced a nanostructured sensor based on copper nanowires, with rapid response time and easy in-field usability, for monitoring nitrate ions in water.
Article
Materials Science, Multidisciplinary
Alper Cetinel
Summary: In this study, cuprous oxide (Cu2O) nanostructures on porous silicon (PSi) were successfully obtained by an electrochemical deposition method, and the effects of current density and deposition time on the structural and optical characteristics of the PSi/Cu2O nanostructures were investigated. The results showed that the shape of Cu2O nanostructures was predominantly truncated octahedral and pyramid, with their size increasing with longer deposition times and higher current densities. Additionally, the samples exhibited rectifier properties and behaved like a typical p-n junction diode, with the smallest ideality factor and series resistance observed in the sample prepared at 0.5 mA/cm2 for 60 minutes.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Analytical
Krzysztof Greda, Maja Welna, Anna Szymczycha-Madeja, Pawel Pohl
Summary: For the first time, a dispersive micro-solid phase extraction (D-mu SPE) based on graphene oxide was used for the ultrasensitive determination of Cd. With this method, Cd can be efficiently extracted from a mixture of alkali and alkaline earth metals without the need for an elution step. The combination of D-mu SPE and SAGD OES significantly reduces matrix effects and improves the tolerance of Cd to alkali metals. The method shows simplicity in the measurement system and the commercially available nanosorbent used.
MICROCHEMICAL JOURNAL
(2024)
Article
Biochemistry & Molecular Biology
Ting Zhang, Houjin Zhang
Summary: Environmental pollution caused by heavy metals such as copper is a significant issue. Finding strains with solid tolerance to copper is crucial for microbial treatment of heavy metal pollution. Traditional methods are time-consuming and cumbersome, while this study introduces a rapid and straightforward method using mediated extracellular electron transfer to sort copper-tolerant or copper-sensitive bacteria.
BIOELECTROCHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Can Liao, Longfei Han, Na Wu, Xiaowei Mu, Yuan Hu, Yongchun Kan, Lei Song
Summary: By utilizing a high Young-modulus polyvinyl alcohol@silica composite separator, the cycling and rate performance of lithium metal batteries can be significantly improved, inhibiting the formation of lithium dendrites and enhancing the Coulombic efficiency of the battery.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Electrochemistry
Witness Martin, Yang Tian, Jie Xiao
Summary: This study investigates the growth mechanism of electroplated lithium in different electrolytes using microelectrodes, aiming to find compatible electrolytes for mitigating lithium dendrite formation.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Atul Verma, Pandiyarajan Anand, Sanath Kumar, Yen-Pei Fu
Summary: A Cu-cuprous/cupric oxide-based family of catalysts was synthesized via hydrothermal technique and their effects on 4-NP conversion and HER were investigated. Through intensive characterizations, two best catalysts for each application were selected based on their performance in different mechanisms.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Mei-Qi Liu, Hui-Ming Li, Zai-Yuan Le, Jin-Fu Zhao, Li-Min Chang, Luan Fang, Mei-Qi Hou, Hai-Rui Wang, Tian-Hao Xu, Ping Nie
Summary: This study investigates the effect of current collectors on the electrochemical properties of potassium-ion capacitors. It is found that using three-dimensional porous copper foil and copper as current collectors can improve the specific capacity and energy/power density.
Article
Engineering, Electrical & Electronic
Yiwei Zhou, Jian Zhao, Yejing Liu, Ray J. H. Ng, Joel K. W. Yang
Summary: In this study, 3D nanoporous inverse opal structures were successfully fabricated by electroplating method using a uniform polystyrene (PS) opal template. The material composition of the inverse opals can be controlled to consist of pure Cu, Cu2O or Cu2O-Cu composites, showing a low-angle-dependent photonic band. Additionally, Cu2O-Cu hybrid inverse opals exhibit higher separation efficiency of photogenerated carriers and double layer capacitance compared to pure Cu or Cu2O inverse opals.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Chemistry, Physical
Ying-Chu Chen, Hsuan-Yu Yeh, Radian Popescu, Dagmar Gerthsen, Yu-Kuei Hsu
Summary: This study presents an alternative approach of growing Cu2O nanowires on Cu foil using a simple wet chemistry method combined with post-thermal treatment to address the issue of copper vacancies. The depletion of copper vacancies results in a space charge layer that efficiently separates the photoexcited charge carriers. The use of ZnO, TiO2, and Pt co-catalyst further enhances charge separation and facilitates electron injection into the electrolyte. This cost-effective and scalable method demonstrates significantly improved photocurrent density compared to the conventional electrodeposition technique.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Analytical
Jee Woo Kim, Seong Jong Kim, In Young Song, Wang-Eun Lee, Kyuyoung Heo, Sang Youl Kim, Jinhee Lee, Byung-Kwon Kim
Summary: Aromatic polyimides (PIs) have excellent thermal and mechanical properties, making them attractive materials in various fields. However, their polyamic acid (PAA) precursors are susceptible to depolymerization due to moisture and heat, which can degrade the properties of PIs. Therefore, controlling the quality of PAAs is crucial in research and industrial applications. In this study, we propose a simple and rapid method to observe the depolymerization of PAAs.
ANALYTICA CHIMICA ACTA
(2022)
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
Chemistry, Analytical
Shuang Liu, Xin-Xin Xue, Yong-Liang Yu, Jian-Hua Wang
Summary: The use of miniaturized optical emission spectrometry devices and activated carbon electrode tips allows for rapid preconcentration and quantitative analysis of heavy metals in water, significantly enhancing sensitivity and practicality.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Physical
Gaowang Qi, Meng Liu, Changwei Tang, Jing Chang, Chongrong Yang, Fujia Liu, Xiaohui Ning, Ying Yang
Summary: Cuprous oxide (Cu2O) is a low-cost material that shows promise in water splitting for hydrogen and oxygen production. A novel electrochemical technology called differential potentiostatic deposition (DPD) was developed to investigate the conductivity transformation in Cu2O films during deposition. The results demonstrate that with the DPD method, the conductivity of Cu2O films can be tuned from p-type to n-type by adjusting the current density.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Hongpeng Li, Qi Qing, Liyuan Zheng, Lan Xie, Zhiqiang Gan, Liqin Huang, Shuang Liu, Zhe Wang, Yuexiang Lu, Jing Chen
Summary: Photocatalytic removal of uranium is a significant research topic in nuclear wastewater treatment. In this study, carbon dots/carbon nitride (CDs/CN) composites were synthesized and SerCDs/CN with excellent removal performance was identified. The introduction of CDs led to higher photocurrent density, lower interfacial charge transfer impedance, and narrower band gap, resulting in improved removal performance. SerCDs/CN exhibited a high removal capacity of up to 1690 mg/g and the reaction could be conducted under air atmosphere, showing potential for practical application.
CHINESE CHEMICAL LETTERS
(2022)
Article
Biochemical Research Methods
Zhe Wang, Liyuan Zheng, Qi Cheng, Xuedong Li, Liqin Huang, Yuexiang Lu
Summary: Graphene oxide (GO) is a versatile optical platform for imaging and sensing, but its fluorescence is relatively weak. In this study, we observed metal-enhanced fluorescence (MEF) of GO on a silver substrate, which significantly increased the fluorescence intensity. Visual and analytical techniques were used to investigate the MEF behavior and its response to different metal ions. The direct contact between GO and the metal substrate exhibited strong MEF without quenching, allowing for three-dimensional optical imaging and sensing.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2022)
Article
Green & Sustainable Science & Technology
Guilin Wei, Xiaoyan Shu, Mingfen Wen, Fen Luo, Yuexiang Lu, Jing Chen, Xirui Lu, Lingshuang Li, Faqin Dong
Summary: This study investigates the immobilization of TRPO waste in Gd2Zr2O7 ceramics using a simple sintering method, achieving a high solid-solubility limit. The results demonstrate an efficient immobilization method for TRPO waste.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Physical
Lingshuang Li, Xiaoyan Shu, Yanrong Cheng, Mingfen Wen, Hongchun Zhou, Xirui Lu, Yuexiang Lu, Jing Chen, Faqin Dong
Summary: One kind of natural granite was used as the matrix to load simulated trivalent actinide waste in order to address the issues of both nuclear waste and granite waste. The results showed that the introduced waste ion significantly influenced the structure change of the matrix. The final waste form exhibited improved physical stability.
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Bin Gao, Ying Zhou, Qingtian Zhang, Shuanglin Zhang, Peng Yao, Yue Xi, Qi Liu, Meiran Zhao, Wenqiang Zhang, Zhengwu Liu, Xinyi Li, Jianshi Tang, He Qian, Huaqiang Wu
Summary: This work demonstrates the in-situ learning ability of the sound localization function using a memristor array and achieves significant improvements in energy efficiency through a proposed multi-threshold-update scheme.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Junwen Cao, Yifeng Li, Yun Zheng, Shubo Wang, Wenqiang Zhang, Xiangfu Qin, Ga Geng, Bo Yu
Summary: A novel anode configuration for solid oxide electrolysis cells (SOECs) that achieves an ultra-high current density of 5.73 A cm(-2) has been reported. This new SOEC demonstrates stable steam electrolysis under an ultra-high current density at 800 degrees C.
ADVANCED ENERGY MATERIALS
(2022)
Article
Multidisciplinary Sciences
Weier Wan, Rajkumar Kubendran, Clemens Schaefer, Sukru Burc Eryilmaz, Wenqiang Zhang, Dabin Wu, Stephen Deiss, Priyanka Raina, He Qian, Bin Gao, Siddharth Joshi, Huaqiang Wu, H-S Philip Wong, Gert Cauwenberghs
Summary: This study presents NeuRRAM, a RRAM-based CIM chip that offers versatility, high energy efficiency, and accuracy. By co-optimizing algorithms, architecture, circuits, and devices, the chip can be reconfigured for different model architectures and provides twice the energy efficiency of previous state-of-the-art RRAM-CIM chips across various computational bit-precisions. It achieves inference accuracy comparable to software models quantized to four-bit weights across various AI tasks.
Article
Nuclear Science & Technology
Pan Tan, Xiaoyan Shu, Mingfen Wen, Lingshuang Li, Yuexiang Lu, Xirui Lu, Shuaipeng Chen, Faqin Dong
Summary: Various cerium doped aluminosilicate glasses were prepared by high-temperature melting method, and their structure and properties were studied. It was found that the addition of cerium ions can improve the integrity and hardness of the glass, but excessive cerium ions can destroy the integrity of the network.
PROGRESS IN NUCLEAR ENERGY
(2022)
Article
Materials Science, Ceramics
Guilin Wei, Xiaoyan Shu, Mingfen Wen, Yuexiang Lu, Tao Duan, Shunzhang Chen, Hexi Tang, Jing Chen, Faqin Dong, Yi Xie, Yang He, Xirui Lu
Summary: This study investigates the mechanism of nuclear waste immobilization using Gd2Zr2O7 ceramic, demonstrating that high sintering temperature promotes transformation and increases chemical stability of the matrices for radioactive waste.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Applied
Weilian Zheng, Yijian Zhao, Xinyi Lin, Qiaojuan Zhang, Keren Xiao, Nan Cheng, Xiaohong Mei, Yuexiang Lu, Zhiyi Yao
Summary: The detection of picric acid is crucial for environmental protection and public safety. This study presents a fluorescent probe based on perylene diimide derivative, which allows for sensitive and selective detection of picric acid in 100% aqueous solution. The probe's self-assembly relies on the synergistic effect of non-covalent interactions including static electricity, hydrophobic interaction, charge transfer, and π-π stacking.
Article
Energy & Fuels
Chao Liang, Liwen Zhang, Nan Zhao, Wei Zhou, Xue Deng, Yuguang Zhou, Yuxin Hou, Wenqiang Zhang
Summary: This study used laser etching to achieve continuous regulation of superhydrophobicity on the surface of silicone rubber, and applied it to a triboelectric nanogenerator (TENG), providing a simple solution for TENG technology and its recycling.
FRONTIERS IN ENERGY RESEARCH
(2022)
Article
Materials Science, Ceramics
Yang He, Xiaoyan Shu, Lingshuang Li, Mingfen Wen, Guilin Wei, Yuexiang Lu, Yi Xie, Faqin Dong, Shunzhang Chen, Kuibao Zhang, Xirui Lu
Summary: Based on the chemical composition and secondary diagenetic property, a natural aluminosilicate was proposed as an immobilization matrix for the simulated An3+ waste (Nd2O3). Sintering at 1500 degrees C for 6 h was found to be a prerequisite for the preparation of the waste form. The glass-ceramic structure-dominated waste form can achieve a loading content of 16 wt.% Nd2O3.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Multidisciplinary Sciences
Zhipeng Wang, Liqin Huang, Xue Dong, Tong Wu, Qi Qing, Jing Chen, Yuexiang Lu, Chao Xu
Summary: An efficient separation strategy based on ion sieving in graphene oxide membrane is reported for the separation of actinides from lanthanides. This work realizes the group separation of actinides from lanthanides under highly acidic conditions by a simple ion sieving strategy and highlights the great potential of utilizing graphene oxide membrane for nuclear waste treatment.
NATURE COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Yanrong Cheng, Xiaoyan Shu, Mingfen Wen, Yuexiang Lu, Pan Tan, Xirui Lu, Lingshuang Li, Faqin Dong
Summary: The solidification of nuclear waste has significant implications for development, and scientists have fabricated a simulated nuclear waste form using the sintering process of diopside. The study found that the Fe element in diopside affects the amorphization process and mechanical properties of the waste form. A natural analog in the form of a glassy bulk was discovered, which can solidify the simulated trivalent actinide of Nd3+. The addition of Nd2O3 was found to affect the polymerization degree of glass components in the waste form. Q3 unit was identified as a key component, and the loading capacity of Nd2O3 reached 19 wt.%. The waste form has a silicate-apatite structure with even distribution, showing promising mechanical properties.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Nanoscience & Nanotechnology
Shuang Liu, Xuedong Li, Liqin Huang, Qi Qing, Daniel-James Maguire, Nakkyu Chae, Zhe Wang, Jing Chen, Yuexiang Lu
Summary: A tunable carbon nitride nanostructure synthesized using molten salt is reported, with its adsorption capacity and photocatalytic activity adjustable with the synthesis temperature. The carbon nitride nanostructure obtained at 550 degrees C showed the highest photo-catalysis-assisted extraction ability (9.4 times higher than that of g-C3N4), while that obtained at 600 degrees C demonstrated the highest adsorption capacity (51 times higher than that of g-C3N4).
ACS APPLIED NANO MATERIALS
(2023)