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Adsorption removal of mercury from flue gas by metal selenide:A review

Journal of environmental sciences 2025年第2期148卷 420-436页

作者： Yang Zheng Guoliang Li Yi Xing Wenqing Xu Tao Yue School of Energy and Environmental Engineering University of Science and Technology BeijingBeijing 100083China State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China CAS Key Laboratory of Green Process and Engineering Institute of Process EngineeringInnovation Academy for Green ManufactureChinese Academy of SciencesBeijing 100190China

Mercury(Hg)pollution has been a global concern in recent decades,posing a significant threat to entire ecosystems and human health due to its cumulative toxicity,persistence,and transport in the *** intense interaction between mercury and selenium has opened up a new field for studying mercury removal from industrial flue gas *** the advantages of good Hg^(0) capture performance and lowsecondary pollution of the mineral selenium compounds,the most noteworthy is the relatively low regeneration temperature,allowing adsorbent regeneration with low energy consumption,thus reducing the utilization cost and enabling recovery of mercury *** paper reviews the recent progress of mineral selenium compounds in flue gas mercury removal,introduces in detail the different types ofmineral selenium compounds studied in the field ofmercury removal,reviews the adsorption performance of various mineral selenium compounds adsorbents on mercury and the influence of flue gas components,such as reaction temperature,air velocity,and other factors,and summarizes the adsorption mechanism of different fugitive forms of selenium *** on the current research progress,future studies should focus on the economic performance and the performance of different carriers and sizes of adsorbents for the removal of Hg^(0) and the correlation between the gas-particle flow characteristics and gas phase mass transfer with the performance of Hg^(0) removal in practical industrial *** addition,it remains a challenge to distinguish the oxidation and adsorption of Hg^(0) quantitatively.

关键词： Non-conventional pollutants Adsorbents Metal selenides Flue gas Mercury removal

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0.58 mΩs·cm2/523 v GaN Vertical Schottky Barrier Diode with 15.6 kA/cm2Surge Current Enabled by Laser Lift-Off/ Annealing and N-Ion Implantation

IEEE Electron Device Letters

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IEEE Electron Device Letters 2024年第6期45卷 964-967页

作者： Qi, Wei Zhou, Feng Ma, Teng Xu, Weizong Zhou, Dong Ren, Fangfang Chen, Dunjun Zhang, Rong Zheng, Youdou Lu, Hai Nanjing University School of Electronic Science and Engineering Nanjing210093 China China Electronic Product Reliability and Environmental Testing Research Institute Science and Technology on Reliability Physics and Application of Electronic Component Laboratory Guangzhou511370 China

Achieving high-performance fully-vertical GaN devices on low-cost and large-scale foreign substrates are highly attractive for the development of device technology. In this work, by performing pulsed laser lift-off and laser annealing techniques, high-performance fully-vertical GaN Schottky barrier diodes (SBDs) with superior N-face ohmic contact characteristics are demonstrated. The resulting device exhibits low specific contact resistivity of 3.51×10-5Ω · cm2 and differential specific on-resistance of 0.58 mΩ· cm2, as well as intact anode Schottky contact. In particular, this device demonstrates robust electrothermal robustness, such as the largest surge current density of 15.6 kA/cm2 to date. Moreover, by implementing N-implanted termination, the breakdown voltage of the device is remarkably enhanced from 240 to 523 V, which is competitive with the state-of-the-art quasi-vertical SBDs. These results reveal the notable potential of pulsed laser lift-off/annealing combined with N-implanted termination for realizing fully-vertical devices. © 1980-2012 IEEE.

关键词： Anodes

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Insights into the effect of Y substitution on superlattice structure and electrochemical performance of A5B19-type La-Mg-Ni-based hydrogen storage alloy for nickel metal hydride battery

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材料科学技术（英文版） 2025年第4期207卷 60-69页

作者： Yanan Guo Wenfeng Wang Huanhuan Su Hang Lu Yuan Li Qiuming Peng Shumin Han Lu Zhang College of Environmental and Chemical Engineering Hebei Key Laboratory of Applied ChemistryYanshan UniversityQinhuangdao 066004China State Key Laboratory of Metastable Materials Science and Technology Yanshan UniversityQinhuangdao 066004China College of Environmental and Chemical Engineering Hebei Key Laboratory of Applied ChemistryYanshan UniversityQinhuangdao 066004China State Key Laboratory of Metastable Materials Science and Technology Yanshan UniversityQinhuangdao 066004China Baotou Zhongke Xuanda New Energy Technology Co.Ltd. Baotou 014030China

La-Mg-Ni-based hydrogen storage alloys with superlattice structures are the new generation anode mate-rial for nickel metal hydride(Ni-MH)batteries owing to the advantages of high capacity and exceptional activation ***,the cycling stability is not currently satisfactory enough which plagues its ***,a strategy of partially substituting La with the Y element is proposed to boost the capacity durability of La-Mg-Ni-based ***,phase structure regulation is implemented simultaneously to obtain the A5B19-type alloy with good crystal stability *** is found that Y promotes the phase formation of the Pr5Co19-type phase after annealing at 985 ℃.The alloy containing Y contributes to the superior rate capability resulting from the promoted hydrogen diffusion ***,Y substitution enables strengthening the anti-pulverization ability of the alloy in terms of increasing the volume match between[A2B4]and[AB5]subunits,and effectively enhances the anti-corrosion ability of the alloy due to high electronegativity,realizing improved long-term cycling stability of the alloy from 74.2％to 78.5％after cycling 300 *** work is expected to shed light on the composition and structure design of the La-Mg-Ni-based hydrogen storage alloy for Ni-MH batteries.

关键词： Nickel metal hydride battery Y element La-Mg-Ni-based alloy A5B19-type superlattice structure Electrochemical performance

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Machine learning for parameters diagnosis of spark discharge by electro-acoustic signal

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Plasma science and technology 2024年第8期26卷 64-72页

作者：熊俊卢诗宇刘晓明周文俊查晓明裴学凯 State Key Laboratory of Power Grid Environmental Protection School of Electrical Engineering and AutomationWuhan UniversityWuhan 430072People’s Republic of China State Key Laboratory of Reliability and Intelligence of Electrical Equipment Hebei University of TechnologyTianjin 300131People’s Republic of China

Discharge plasma parameter measurement is a key focus in low-temperature plasma *** diagnostics often require costly equipment,whereas electro-acoustic signals provide a rich,non-invasive,and less complex source of discharge *** study harnesses machine learning to decode these *** establishes links between electro-acoustic signals and gas discharge parameters,such as power and distance,thus streamlining the prediction *** building a spark discharge platform to collect electro-acoustic signals and implementing a series of acoustic signal processing techniques,the Mel-Frequency Cepstral Coefficients(MFCCs)of the acoustic signals are extracted to construct the *** machine learning models(Linear Regression,k-Nearest Neighbors,and Random Forest)are introduced and applied to the predictors to achieve real-time rapid diagnostic measurement of typical spark discharge power and discharge *** models display impressive performance in prediction precision and fitting *** them,the k-Nearest Neighbors model shows the best performance on discharge power prediction with the lowest mean square error(MSE=0.00571)and the highest R-squared value(R^(2)=0.93877).The experimental results show that the relationship between the electro-acoustic signal and the gas discharge power and distance can be effectively constructed based on the machine learning algorithm,which provides a new idea and basis for the online monitoring and real-time diagnosis of plasma parameters.

关键词： discharge plasma plasma real-time diagnosis electro-acoustic signal machine learning acoustic signature

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Discussion on the reliability Work of Future Combat Aircraft under Aircraft/Engine Integrated Design 14

Discussion on the Reliability Work of Future Combat Aircraft...

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14th International Conference on reliability, Maintainability and Safety, ICRMS 2023

作者： Ding, Yu Li, Tianhao Institute of Reliability Engineering Beihang University Science and Technology The Reliability and Environmental Engineering Laboratory China Beijing China

ISBN: (纸本)9798350329988

Traditional independent methods of aircraft and engine design can no longer meet the mission requirements of future aircraft, including high maneuverability, high energy, large airspace, and wide speed range. To achieve optimal matching between aircraft and engine and promote full play to the maximum performance potential of aircraft and engines, aircraft-engine integration designs are essential. Therefore, considering the highly coupled structure, complex control logic, and dramatic increase in energy and heat dissipation requirements under the integration design to ensure a high mission success rate, corresponding reliability analysis work and reliability level improvement of the whole aircraft are necessary. In this paper, the characteristics of work, structure, environment, and other aspects of aircraft-engine integrated design are initially considered, and the steps to conduct reliability work are discussed. © 2023 IEEE.

关键词： reliability analysis

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Experiment and simulation on degradation and burnout mechanisms of SiC MOSFET under heavy ion irradiation

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Chinese Physics B 2023年第2期32卷 525-534页

作者：张鸿郭红霞雷志锋彭超张战刚陈资文孙常皓何玉娟张凤祁潘霄宇钟向丽欧阳晓平 School of Material Science and Engineering Xiangtan UniversityXiangtan 411105China Science and Technology on Reliability Physics and Application of Electronic Component Laboratory China Electronic Product Reliability and Environmental Testing Research InstituteGuangzhou 510610China Northwest Institute of Nuclear Technology Xi'an 710024China

Experiments and simulation studies on 283 MeV I ion induced single event effects of silicon carbide(SiC) metal–oxide–semiconductor field-effect transistors(MOSFETs) were carried out. When the cumulative irradiation fluence of the SiC MOSFET reached 5×10^(6)ion·cm^(-2), the drain–gate channel current increased under 200 V drain voltage, the drain–gate channel current and the drain–source channel current increased under 350 V drain voltage. The device occurred single event burnout under 800 V drain voltage, resulting in a complete loss of breakdown voltage. Combined with emission microscope, scanning electron microscope and focused ion beam analysis, the device with increased drain–gate channel current and drain–source channel current was found to have drain–gate channel current leakage point and local source metal melt, and the device with single event burnout was found to have local melting of its gate, source, epitaxial layer and substrate. Combining with Monte Carlo simulation and TCAD electrothermal simulation, it was found that the initial area of single event burnout might occur at the source–gate corner or the substrate–epitaxial interface, electric field and current density both affected the lattice temperature peak. The excessive lattice temperature during the irradiation process appeared at the local source contact, which led to the drain–source channel damage. And the excessive electric field appeared in the gate oxide layer, resulting in drain–gate channel damage.

关键词： heavy ion silicon carbide metal–oxide–semiconductor field-effect transistors(SiC MOSFET) drain–gate channel drain–source channel single event burnout TCAD simulation

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Acquisition Method of Time–Frequency Distribution Based on Short-Time Fractional Fourier Transform 2nd

Acquisition Method of Time–Frequency Distribution Based on ...

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2nd International Conference of Mechanical System Dynamics, ICMSD 2023

作者： Gao, Bo Zhang, Zhong Wang, Ben Science and Technology on Reliability and Environmental Engineering Laboratory Beijing Institute of Structure and Environment Engineering Beijing100076 China

ISBN: (纸本)9789819980475

With people's attention to the non-stationary characteristics of signals, the traditional frequency domain analysis methods cannot meet the needs of non-stationary signal processing. Therefore, the time–frequency analysis method for non-stationary signals has attracted more and more attention. In this paper, in view of the demand for non-stationary signal time frequency processing, the method of fractional Fourier transform is improved, and a method of obtaining time frequency distribution with high time frequency resolution is obtained, that is, short-time fractional Fourier transform. Based on the detailed description of the calculation steps of this method, it is proved that this method has certain advantages in time frequency resolution and anti-noise interference by comparing with the short-time Fourier trans for method. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Frequency domain analysis

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Permeable and robust polymer-silica hybrid armor on cell catalyst for sustainable biomanufacturing

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Particuology 2024年第9期92卷 106-112页

作者： Yiran Cheng Zhenhua Wu Boyu Zhang Jiaxu Zhang Jiafu Shi Zhongyi Jiang School of Environmental Science and Engineering Tianjin UniversityTianjin300072China Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China

Inactivated cell catalysis is one of several central techniques in green biomanufacturing ***,the instability and leakage of enzymes in inactivated cell severely restrict the practical applications of inactivated cell *** armor on the surface of inactivated cells affords a feasible and effective strategy to enhance the stability of cells while commonly lowering the ***,polymer-silica hybrid armor(PSHA)is directly generated on the surface of enzyme-containing *** branched structure of PEI enables higher porosity of cell@PSHA,exhibiting 1.52-fold enhancement in substrate permeability by contrast with cell@silica armor(SA).The electrostatic interactions(NH_(3)^(+)with O^(−))and hydrogen bonding(N⋯H or O⋯H)interactions between structural units enables higher stability of cell@PSHA,showing 3.13-fold elevation in Young's modulus compared with cell@*** a result,the cell@PSHA can catalyze continuous conversion of starch to tagatose for 15 batches over 969 h,with an average yield of 77.76 g L^(−1).

关键词： Biomanufacturing Wholecell catalysis Polymer-silica hybrid armor Tagatose production Starch conversion

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Multi-strategy combined bionic coating for long-term robust protection against marine biofouling

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材料科学技术（英文版） 2025年第7期210卷 265-277页

作者： Nan Zheng Bo Jia Jie Liu Xiaojun Wang Duo Zhang Hairan Zhang Guoqing Wang Shaanxi Key Laboratory of Catalysis School of Chemical and Environmental ScienceShaanxi University of TechnologyHanzhong 723001PR China State Key Laboratory of Marine Resource Utilization in South China Sea School of Materials Science and EngineeringHainan UniversityHaikou 570228PR China Shaanxi Key Laboratory of Catalysis School of Chemical and Environmental ScienceShaanxi University of TechnologyHanzhong 723001PR China State Key Laboratory of Marine Resource Utilization in South China Sea School of Materials Science and EngineeringHainan UniversityHaikou 570228PR China

Polyurethane-fluorinated polysiloxane(PU-FPDMS)with high-strength,high-bonding and low surface en-ergy is synthesized as the matrix,and the PU-FPDMS/MCs/Ag marine anti-fouling coating on the sur-face of imitation crab shells is constructed by assembling butenolide@1,1-stilbene-modified hydrolyzed polyglycidyl methacrylate/graphene oxide microcapsules(Bu@PGMAm/GO MCs)with compact multi-shell structure and Ag nanoparticles(AgNPs)step by step on the PU-FPDMS *** PU-FPDMS/MCs/Ag bionic anti-fouling coatings achieve long-term and stable anti-fouling effect under the combination of robust low-surface-energy PU-FPDMS matrix,steady-state sustained release of butenolide encapsulated by the compact multi-shell,bionic surface formed by the microcapsules and AgNPs,and the release of Ag+.The shear strength,tensile strength,and elongation at break of the PU-FPDMS/MCs/Ag are 3.53 MPa,6.7 MPa,and 192.83％,*** static contact angle and sliding angle are 161.8° and 3.6°,*** antibacterial rate of PU-FPDMS/MCs/Ag against Escherichia coli,Staphylococcus aureus,and Candida albicans can reach 100％.Compared with glass blank,PU,PU-FPDMS,PU-FPDMS/Ag,and PU-FPDMS/MCs,both the adhesion number and coverage percentage of chlorella adhere to PU-FPDMS/MCs/Ag are the minimum values,which are 600 cell mm-2 and 1.53％,*** 6 months of marine field test,the primer blank,PU,PU-FPDMS all show different degrees of attachment by shellfish,spirorbis,al-gae and other biofouling,while the PU-FPDMS/MCs/Ag coating is still not covered with biofouling,while the PU-FPDMS/MCs/Ag coatings still exhibit little attachment of marine *** PU-FPDMS/MCs/Ag bionic anti-fouling coatings are expected to be widely used in the fields of anti-fouling,anti-icing,anti-fogging,drag reduction,self-cleaning,and antibacterial.

关键词： Marine anti-biofouling Bionic Coating Long-term and stable anti-fouling

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Cooperative effect of Cr and Al elements on passivation enhancement of eutectic high-entropy alloy AlCoCrFeNi_(2.1)with precipitates

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Journal of Materials science & technology 2023年第5期136卷 97-108页

作者： Xiaotian Duan Tiezhuang Han Xiao Guan Yuning Wang Huhu Su Kaisheng Ming Jing Wang Shijian Zheng State Key Laboratory of Reliability and Intelligence of Electrical Equipment Hebei University of TechnologyTianjin 300130China School of Material Science and Engineering Hebei University of TechnologyTianjin 300130China

In conventional corrosion-resistant alloys,precipitation usually reduces corrosion resistance severely by weakening passive films *** this work,we found that the aging-treated AlCoCrFeNi_(2.1)sam-ples,which have abundant nanosized L 12 and body-centered cubic(BCC)precipitates in the lamellar face-centered cubic(FCC)and B2 phases,displayed better corrosion resistance than solution-treated AlCoCrFeNi_(2.1)samples without *** the AlCoCrFeNi_(2.1)alloy,the FCC phase with L1_(2)precipi-tates and the B2 phase with BCC precipitates were protected by passive films enriched with Cr and Al elements,***,the Al-rich passive film of the B2 phase was less stable than the Cr-rich passive film of the FCC phase,so B2 phase dissolved *** Cr-rich passive film of the FCC phase remained stable with the formation of Al-rich L1_(2)precipitates inside the phase because those precipitates with the size of∼5 nm were too small to affect the composition of the Cr-rich passive *** formation of Cr-rich BCC precipitates within the B2 phase increased the content of the Al element inside the phase,improving the stability of Al-rich passive film on the B2 ***,BCC precip-itates with the size of∼30 nm were protected by Cr-rich passive film,which could inhibit the expansion of corrosion ***,the corrosion resistance of eutectic high-entropy alloy AlCoCrFeN 2.1 was unprece-dentedly enhanced by the precipitation of BCC *** study could provide an attractive strategy for designing high-entropy alloys with excellent corrosion resistance and high strength.

关键词： Eutectic high-entropy alloy Passive film Corrosion resistance Precipitates TEM

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