Article
Biochemistry & Molecular Biology
Jingjing Wu, Jianfeng Xi, Haibo Chen, Yishan Liu, Lei Zhang, Peng Li, Weibing Wu
Summary: A flexible SERS substrate was developed for the detection of malachite green bactericide. The substrate was prepared by in situ photochemical synthesis of silver nanoparticles on a nanocellulose film. The obtained composite SERS substrate showed high sensitivity and good detection reproducibility to Rhodamine 6G and malachite green. This nanocellulose-based 2D SERS substrate has the potential for rapid and sensitive identification of various toxic and harmful pollutants.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Computer Science, Information Systems
Qurrat-Ul-Ain Nadeem, Anas Chaaban, Merouane Debbah
Summary: The study introduces an opportunistic beamforming scheme assisted by IRS, utilizing random rotations at the IRS to exploit the multi-user diversity effect in a slow-fading environment. In a correlated Rayleigh fast-fading environment, a deterministic beamforming scheme results in a considerable sum-rate improvement under IRS assistance.
IEEE WIRELESS COMMUNICATIONS LETTERS
(2021)
Article
Environmental Sciences
Pedram Rezaei, Hamid Reza Moheghi, Amin Amiri Delouei
Summary: This paper focuses on the fabrication and optimization of a spiral-tube heat exchanger (STHE) to improve the heat transfer rate and efficiency of traditional instantaneous water heaters. The large number of exported instantaneous water heaters from Garman Gas Toos company has caused significant cost and credit reduction due to corrosion and leakage. The high energy consumption also justifies the need for a new STHE design. The main innovation of this research is the development of a smaller and more efficient heat exchanger by identifying the factors that affect its efficiency and heat transfer rate.
Article
Chemistry, Multidisciplinary
Pallavi Thakur, Jamsad Mannuthodikayil, Golap Kalita, Kalyaneswar Mandal, Tharangattu N. Narayanan
Summary: A protein-assisted electrochemical hydrogen evolution catalyst development strategy is proposed in this study, which involves modifying the surfaces of carbon nanotubes (CNTs) and bulk MoS2 with metalloprotein cytochrome c. The research shows successful covalent functionalization of CNTs and hydrophobic interaction-mediated surface modification of MoS2 to produce highly active catalysts, establishing a method that works effectively in both bulk and nanomaterials.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Multidisciplinary Sciences
Wentao Yuan, Beien Zhu, Ke Fang, Xiao-Yan Li, Thomas W. Hansen, Yang Ou, Hangsheng Yang, Jakob B. Wagner, Yi Gao, Yong Wang, Ze Zhang
Summary: The interface between metal catalyst and support is critical in heterogeneous catalysis. The study found that the atomic structure of the Au-TiO2 interface depends on the epitaxial rotation of gold nanoparticles on a TiO2 surface during CO oxidation. Manipulation of the active Au-TiO2 interface was achieved in situ by changing gas and temperature, suggesting real-time design of catalytic interface in operating conditions may be possible.
Article
Chemistry, Multidisciplinary
Zhe Zhu, Ruyu Kan, Peijie Wu, Yao Ma, Zhaoyang Wang, Ruohan Yu, Xiaobin Liao, Jinsong Wu, Liang He, Song Hu, Liqiang Mai
Summary: A stable Ni-Zn microbattery with ultrahigh-rate performance is constructed through in situ electrochemical approaches, showing excellent capacity retention and stability. This surface reconstruction strategy for nanostructure provides a new direction for the optimization of electrode structure and enriches high-performance output units for integrated microelectronics.
Article
Engineering, Environmental
Lei Cheng, Yanan Zhou, Bao Zhang, Wei Wang, Lei Ming, Zhiming Xiao, Xing Ou
Summary: Nickel-rich cathodes are important in the electric vehicles sector, but face limitations due to structural instability and capacity decay. This study proposes a strategy of in-situ zirconium ion doping to improve the single-crystal cathodes, resulting in enhanced cycling stability and rate performance.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Hongshuai Cao, Panzhe Qiao, Qilan Zhong, Ruijuan Qi, Yijing Dang, Lei Wang, Zhiai Xu, Wen Zhang
Summary: Electrochemical activation is effective for improving the catalytic activity of metal phosphate, but understanding the activated reconstruction and electrocatalytic mechanisms is challenging. In this study, a constant voltage activation strategy successfully reconstructed an irreversible amorphous Ni(OH)(2) layer on the surface of Ni2P4O12, resulting in excellent OER activity. The study also found that the heterostructure follows a nonconcerted proton-electron transfer mechanism.
Article
Environmental Sciences
Ian M. Simpson, Ryan J. Winston, R. Andrew Tirpak
Summary: Permeable pavements are used to mitigate negative hydrologic outcomes, but clogging in joint openings hinders their hydraulic function. Various maintenance techniques were tested on PICPs in Ohio, with some improving surface infiltration rates significantly, although restoring hydraulic conditions to initial levels was challenging.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Engineering, Environmental
Yanyan An, Mengxin Han, Huaili Zheng, Wei Ding, Qiang Sun, Chao Hu, Liushi Zheng
Summary: A hollow-structured self-floating copper-loaded catalyst was successfully prepared and applied for As(III) oxidation, showing good surface area, stability, and catalytic efficiency. The catalyst can float and be easily separated from water, demonstrating stability after multiple cycles and effectiveness in various geochemical conditions.
CHEMICAL ENGINEERING JOURNAL
(2021)
Correction
Chemistry, Multidisciplinary
Pallavi Thakur, Jamsad Mannuthodikayil, Golap Kalita, Kalyaneswar Mandal, Tharangattu N. Narayanan
Summary: The study describes a method for in situ surface modification of materials by cytochrome C for active hydrogen evolution catalysis.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Multidisciplinary
Qian-Yu Liu, Cheng Shang, Zhi-Pan Liu
Summary: In this study, machine learning simulation was used to explore FeCx structures under FTS conditions, leading to the identification of the active site for CO activation. This understanding of atomic-level processes can help in correlating structure and activity, ultimately aiding in the design of improved FT catalysts.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Geochemistry & Geophysics
Guangxing Zhang, Guixin Zhang, Shanyou Zhu, Nan Zhang, Yongming Xu
Summary: This study successfully modeled spatiotemporal continuous near-surface temperature lapse rate (TLR) in a mountain area using observed air temperature, MODIS land surface temperature (LST) products, land cover maps, and the ASTER digital elevation model (DEM). The sliding window method and diurnal temperature cycle (DTC) model were employed to achieve this. The results showed that MODIS LST can be used to calculate near-surface TLR, and the sliding window method effectively calculated spatially continuous TLR with a suitable window size of 15 x 15.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2023)
Article
Energy & Fuels
Peng Zhang, Tao Wu, Kevin Huang
Summary: This study identified the major active species on the surface of (Li-Na)2CO3 eutectic using Raman spectroscopy and theoretical calculations, showing that the presence of different gases and alkaline earth additives can affect the formation of active species.
FRONTIERS IN ENERGY RESEARCH
(2021)
Article
Thermodynamics
Zehua Li, Renjie Zou, Yang Xu, Yuan Fang, Guangqian Luo, Hong Yao
Summary: In this study, coal chars with different cooling rates were prepared and characterized, showing that carbon structure tends to be graphitized during cooling and in-situ char has the lowest carbon graphitization. The reactivity of chars decreases with cooling rate, with in-situ char having the highest carbon defects and most active surface area.
COMBUSTION AND FLAME
(2022)