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Biosensors 2025年第5期15卷 275页

作者： Feng Li Jinxin Lin Eric Lichtfouse Haifeng Qi Lang Peng Yangyang Yu Li Gao Department of Thoracic Surgery Affiliated Hospital of Jiangsu University Zhenjiang 212013 China. International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University No. 28 Xianning West Rd Xi'an 710049 China. Information Materials and Intelligent Sensing Laboratory of Anhui Province Anhui University Hefei 230039 China. School of Life Sciences Jiangsu University Zhenjiang 212013 China. School of Life Sciences Qinghai Normal University Xining 810008 China.

Ecosystem pollution by mercury ions (Hg) is a major health concern, yet classical analytical methods for mercury analysis are limited. This paper reviews the advances in Hg detection using DNA as recognition elements in the sensors. DNA as a recognition molecule is inexpensive, simple, and appropriate for real-time detection of Hg. This paper discusses the DNA-based sensors that were used for the detection of Hg. These can be carried out by electrochemistry, field effect transistors (FET), Raman spectroscopy, colorimetry, and fluorescence resonance energy transfer (FRET). The detection principles and the advantages of DNA in these sensors are also revealed. Finally, the paper provides an overview of prospects and potential challenges in the field.

关键词： DNA-based sensors detection of Hg2+ methods

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MXene-derived Ni/TiO2-x/Ti3C2 catalyst for enhanced photothermal CO2 methanation: Unraveling the roles of photoexcited carriers

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Chemical engineering Journal 2025年 515卷

作者： Sun, Fan Xin, Yu Xing, Xueli Lou, Jiahui Wang, Qiliang Hong, Hui International Research Center for Renewable Energy & State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an710049 China Institute of Engineering Thermophysics Chinese Academy of Sciences Beijing100190 China School of Aeronautics and Astronautics University of Chinese Academy of Sciences Beijing100049 China Huaneng Clean Energy Research Institute Beijing102209 China Shandong Institute of Advanced Technology Jinan250100 China Department of Architecture and Built Environment University of Nottingham NottinghamNG7 2RD United Kingdom

Photothermal catalysis has emerged as a promising approach for CO2 conversion, which combines photo and thermal energy to drive catalytic reactions efficiently. While light can lower activation barriers and enhance reaction rates, the interplay between light and heat within the catalytic framework remains largely unexplored. In this study, we investigate the critical role of photogenerated carriers in enhancing catalytic performance under solar irradiation, unraveling their contribution to the CO2-to-CH4 conversion process. A multilayer accordion-like Ni/TiO2-x/Ti3C2 catalyst, which exhibits excellent photothermal and photoelectric response characteristics was fabricated for efficient photothermal CO2 methanation. Experimental results demonstrated that introduction of light during thermal catalysis markedly enhanced the CO2 conversion rate, with a 55 % increase achieved at 548 K. Furthermore, the required temperature for maximum CO2 conversion rate was reduced by 50 K compared to the thermal-driven process. Meanwhile, the effects of concentrated ratio and incident wavelength on CO2 conversion were also examined, revealing a synergistic effect between photogenerated carriers and thermal energy. Further characterizations, including steady-state and transient photoluminescence spectroscopy, in-situ XPS, in-situ EPR, in-situ DRITFs, were employed to elucidate the enhancement mechanisms of photogenerated carriers in the catalytic reaction. At the same time, an outdoor experimental prototype was developed to verify the feasibility of photogenerated carrier-thermal synergistically driven CO2 methanation. Our findings provide valuable insights into the role of photo-generated carriers in photothermal CO2 methanation, offering new perspectives for the design of efficient photothermal catalysts and advancing solar catalytic CO2 conversion technologies. © 2025

关键词： Activation energy

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Numerical simulation on filling process of drag reduction agent in natural gas pipeline

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Journal of Physics: Conference Series 2021年第1期1985卷

作者： Xiaoyun Yin Jiaqiang Jing Peiyu Jing Jie Sun Ying Yuan School of Oil & Natural Gas Engineering Southwest Petroleum University Chengdu China Oil & Gas Fire Protection Key Laboratory of Sichuan Province Chengdu China State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an China

In this paper, a numerical simulation is established to model the filling process of atomized natural gas drag reduction agent (DRA) at the pipeline inlet section. The computations are on the basis of the Euler-Lagrange method with the standard k-ε turbulence model. The effects of atomizing parameters on the droplets Sauter Mean Diameter (SMD) and the adsorption performance on the wall of pipe are investigated using the validated model. The results show that nozzle diameter and nozzle angle have little effect on the SMD of DRA droplets, whereas the size of the droplets SMD reduces with the increase of atomizing pressure, and the influence of atomizing flow rate is just the opposite.

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Experimental study on nanosecond pulsed pin-to-plate discharge in supersonic air flow

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Plasma Science and Technology 2019年第9期21卷 122-131页

作者： Yiwen LI zhong ZHUANG Lei PANG Pengzhen DUAN Zhiwen DING Bailing ZHANG Science and Technology on Plasma Dynamics Laboratory Air Force Engineering University Xi'an 710038 People's Republic of China Science and Technology on Combustion Internal Flow and Thermo-Structure Laboratory Astronautics School Northwestern Polytechnical University Xi'an 710072 People's Republic of China State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong University Xi'an 710049 People's Republic of China

Development of magnetohydrodynamic acceleration technology is expected to improve wind tunnel simulation capability and testing *** underlying premise is to produce uniform and stable plasma in supersonic air flow,and gas discharge is an effective way to achieve this.A nanosecond pulsed discharge experimental system under supersonic conditions was established,and a pin-to-plate nanosecond pulsed discharge experiment in Mach 2 air flow was performed to verify that the proposed method produced uniform and stable plasma under supersonic *** results show that the discharge under supersonic conditions was stable overall,but uniformity was not as good as that under static *** the number of pins improved discharge uniformity,but reduced discharge intensity and hence plasma *** multi-pin conditions at 1000Hz,the discharge was almost completely corona discharge,with the main current component being the displacement current,which was smaller than that under static conditions.

关键词： nanosecond pulse discharge supersonic air flow pin-to-plate discharge plasma uniform and stable

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Heat transfer characteristics in super-low finned-tube bundles of moisture separator reheaters

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Nuclear engineering and Design 2019年 341卷 368-376页

作者： Dalin Zhang Jiangtao Yu Wenxi Tian G.H. Su Suizheng Qiu State Key Laboratory of Multiphase Flow in Power Engineering Shaanxi Key Laboratory of Advanced Nuclear Energy and Technology School of Nuclear Science and Technology Xi’an Jiaotong University No. 28 Xianning West Road Xi’an 710049 China

Experimental investigation on the heat transfer characteristics of superheat vapor through a new designed moisture separator reheater with “super-low” finned-tube bundles for Generation III+ nuclear power plant, was carried out based on a 5*30 tube bundle test section. Impacts of the vapor mass flow rates are analyzed on the heat transfer characteristics of superheat vapor through the finned-tube bundle. A group of experiments are reviewed on single-phase fluid flowing across the triangular super-low finned-tube bundles whose fin heights are less than 2.75 mm and ratios of fin height to fin diameter are from 0.05 to 0.15. Combining the presented experimental data with the other open published data for single-phase turbulent gases flowing across triangular super-low finned-tube, a new heat transfer correlation is proposed for the MSRs super-low finned-tube bundles, which shows better accuracy and has wider Reynolds number range in application.

关键词： Super-low finned-tube bundle Moisture separator reheater Superheated vapor Heat transfer

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Back Cover Image, Volume 7, Number 3, March 2025

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Carbon Energy 2025年第3期7卷

作者： Binglan Wu Karim Harrath Marshet Getaye Sendeku Tofik Ahmed Shifa Yuxin Huang Jing Tai Fekadu Tsegaye Dajan Kassa Belay Ibrahim Xueying Zhan Zhenxing Wang Elisa Moretti Ying Yang Fengmei Wang Alberto Vomiero State Key Laboratory of Chemical Resource Engineering College of Chemistry Beijing University of Chemical Technology Beijing China CAS Key Laboratory of Nanosystem and Hierarchical Fabrication National Center for Nanoscience and Technology (NCNST) Beijing China Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science Northwest University Xi'an China State Key Laboratory of Multiphase Flow in Power Engineering International Research Center for Renewable Energy Xi'an Jiaotong University Shaanxi China Fundamental Science Center of Rare Earths Ganjiang Innovation Academy Chinese Academy of Science Ganzhou China Ocean Hydrogen Energy R&D Center Research Institute of Tsinghua University in Shenzhen Shenzhen China Department of Molecular Sciences and Nanosystems Ca' Foscari University of Venice Venezia Mestre Italy Testing and Analysis Center Institute of Chemistry Chinese Academy of Sciences Beijing China Department of Engineering Sciences and Mathematics Division of Materials Science Luleå University of Technology Luleå Sweden

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flow simulation considering adsorption boundary layer based on digital rock and finite element method

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石油科学（英文版） 2021年第1期18卷 183-194页

作者： Yong-Fei Yang Ke Wang Qian-Fei Lv Roohollah Askari Qing-Yan Mei Jun Yao Jie-Xin Hou Kai Zhang Ai-Fen Li Chen-Chen Wang Key Laboratory of Unconventional Oil and Gas Development (China University of Petroleum (East China)) Ministry of Education Qingdao 266580 ShandongPeople's Republic of China Research Center of Multiphase Flow in Porous Media School of Petroleum Engineering China University of Petroleum (East China) Qingdao 266580 ShandongPeople's Republic of China Department of Geological and Mining Engineering and Sciences Michigan Technological University HoughtonMI USA Exploration and Development Research Institute of PetroChina Southwest Oil and Gas Field Company Chengdu 610041 Sichuan People's Republic of China School of Materials Science and Engineering Beihang University Beijing 100191 People's Republic of China Hubei Cooperative Innovation Center of Unconventional Oil and Gas Yangtze University Wuhan 430100 HubeiPeople's Republic of China

Due to the low permeability of tight reservoirs,throats play a significant role in controlling fluid *** many studies have been conducted to investigate fluid flow in throats in the microscale domain,comparatively fewer works have been devoted to study the effect of adsorption boundary layer (ABL) in throats based on the digital rock *** considering an ABL,we investigate its effects on fluid *** build digital rock model based on computed tomography ***,microscopic pore structures are extracted with watershed segmentation and pore geometries are meshed through Delaunay triangulation ***,using the meshed digital simulation model and finite element method,we investigate the effects of viscosity and thickness of ABL on microscale *** results demonstrate that viscosity and thickness of ABL are major factors that significantly hinder fluid flow in throats.

关键词： Digital rock Low-permeability rocks CT technology Adsorption boundary layer Numerical simulation Finite element method

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Shale oil redistribution-induced flow regime transition in nanopores

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Energy 2023年 282卷

作者： Hai Sun Tianhao Li Zheng Li Dongyan Fan Lei Zhang Yongfei Yang Kai Zhang Junjie Zhong Jun Yao Key Laboratory of Unconventional Oil & Gas Development (China University of Petroleum (East China)) Ministry of Education Qingdao 266580 PR China Research Center of Multiphase Flow in Porous Media School of Petroleum Engineering China University of Petroleum (East China) Qingdao 266580 PR China State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of Technology Chengdu 610059 PR China

The previous neglect of shale oil multi-component characteristics and the nanpore wall properties of real shale result in an insufficient understanding of shale oil flow mechanisms in nanopores . Meanwhile, research on the flow regimes of shale oil remains lacking. In this study, molecular dynamics simulations are employed to investigate the flow of shale oil in hydroxylated quartz nanopores and rough kerogen nanopores. Simulation results show that the flow regime changed as the pressure gradient (∇ p ) increased to a critical value (∇ p c ). The velocity profile was parabolic when ∇ p < ∇ p c , but gradually became piston-like when ∇ p ≥ ∇ p c . Because increasing ∇ p leads the adsorbed molecules desorbing, aggregating in the pore center, and forming clusters that are not easy to shear. Increasing vertical force from pore wall causes fluid aggregation in the pore center as ∇ p increases. The ∇ p c in kerogen nanopores is larger than that in quartz nanopores due to the rough kerogen surface and sticky layers. Multi-component fluids have higher ∇ p c than single-component fluids in quartz nanopores. However, they have the same ∇ p c in kerogen nanopores due to the rough kerogen surface. This investigation can provide theoretical basis for high-efficient production of shale oil.

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Front Cover: Decoupled Water Electrolysis Driven by 1 cm2Single Perovskite Solar Cell Yielding a Solar-to-Hydrogen Efficiency of 14.4 % (ChemSusChem 1/2023)

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ChemSusChem 2022年第1期16卷

作者： Fei Lv Dr. Zhixiao Qin Jiazhe Wu Lixia Pan Longjie Liu Prof. Yubin Chen Prof. Yixin Zhao International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Shaanxi 710049 P. R. China School of Environmental Science and Engineering Frontiers Science Center for Transformative Molecules Shanghai Jiao Tong University Shanghai 200240 P. R. China

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Novel Cu_3P/g-C_3N_4 p-n heterojunction photocatalysts for solar hydrogen generation

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Science China Materials 2018年第6期61卷 861-868页

作者： Zhixiao Qin Menglong Wang Rui Li Yubin Chen International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University

Developing efficient heterostructured photocatalysts to accelerate charge separation and transfer is crucial to improving photocatalytic hydrogen generation using solar energy. Herein, we report for the first time that p-type copper phosphide（Cu3P） coupled with n-type graphitic carbon nitride（g-C3N4） forms a p-n junction to accelerate charge separation and transfer for enhanced photocatalytic *** optimized Cu3P/g-C3N4 p-n heterojunction photocatalyst exhibits 95 times higher activity than bare g-C3N4, with an apparent quantum efficiency of 2.6% at 420 nm. A detail analysis of the reaction mechanism by photoluminescence,surface photovoltaics and electrochemical measurements revealed that the improved photocatalytic activity can be ascribed to efficient separation of photo-induced charge carriers. This work demonstrates that p-n junction structure is a useful strategy for developing efficient heterostructured photocatalysts.

关键词： photocatalysis copper phosphide p-n junction heterostructure hydrogen production

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