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MOFs-Bbased Materials for Solid-state Hydrogen Storage: Strategies and Perspectives

Chemical engineering Journal 2024年 485卷

作者： Li, Yuting Guo, Qifei Ding, Zhao Jiang, Han Yang, Hang Du, Wenjia Zheng, Yang Huo, Kaifu Shaw, Leon L. The State Key Laboratory of Refractories and Metallurgy Institute of Advanced Materials and Nanotechnology Wuhan University of Science and Technology Wuhan430081 China College of Materials Science and Engineering National Engineering Research Center for Magnesium Alloys Chongqing University Chongqing400044 China Department of Engineering Science University of Oxford OxfordOX1 3PJ United Kingdom Department of Mechanical Materials and Aerospace Engineering Illinois Institute of Technology Chicago60616 United States

Exceptionally porous crystals with ultrahigh adsorption capacities, metal–organic frameworks (MOFs), have received recognition as leading candidates for the promotion of solid-state hydrogen storage. MOFs are compelling adsorbents given their impressive uptake under stringent cryogenic and high-pressure conditions for physisorption. The use of high-throughput screening to rapidly identify potential candidates, the understanding of structure–property correlations through molecular simulations, and the use of machine learning to predict material properties offer a more efficient approach to meeting these stringent operational constraints. Furthermore, the open metal sites and customizable pore structures act make MOFs as catalysts or nanoconfinement matrices, facilitating enhancements in the thermodynamics and kinetics of reactive chemical hydrides. Strategically harnessing the tunability of MOFs could unlock vast, untapped potential for enabling high-density, reversible hydrogen storage under real-world conditions, aligned with sustainability needs. This review establishes MOFs as an innovative platform in solid-state hydrogen storage by intertwining material discovery with engineering principles. The comprehensive analysis and consolidation of the research provides new perspectives to broaden the scope of the investigation and drive the widespread deployment and development of hydrogen energy. © 2024 Elsevier B.V.

关键词： Catalysis

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Regulation of extracellular bioactive cations in bone tissue microenvironment induces favorable osteoimmune conditions to accelerate in situ bone regeneration

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Bioactive Materials 2021年第8期6卷 2315-2330页

作者： Zhengjie Lin Danni Shen Weixiao Zhou Yufeng Zheng Tiantian Kong Xuanyong Liu Shuilin Wu Paul K.Chu Ying Zhao Jun Wu Kenneth M.C.Cheung Kelvin W.K.Yeung College of Chemistry and Environmental Engineering Shenzhen UniversityShenzhen518060China Department of Orthopaedics and Traumatology The University of Hong KongHong KongChina Department of Materials Science and Engineering College of EngineeringPeking UniversityBeijing100871China Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma The University of Hong Kong Shenzhen Hospital1 Haiyuan 1st RoadFutian DistrictShenzhenChina Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging Department of Biomedical EngineeringSchool of MedicineShenzhen UniversityShenzhen518060China State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai200050China School of Materials Science&Engineering the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of ChinaTianjin UniversityTianjin300072China Department of Physics Department of Materials Science and EngineeringCity University of Hong KongTat Chee AvenueKowloonHong KongChina Centre for Human Tissues and Organs Degeneration Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen518055China State Key Laboratory of Bioelectronics School of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096China

The design of orthopedic biomaterials has gradually shifted from“immune-friendly”to“immunomodulatory,”in which the biomaterials are able to modulate the inflammatory response via macrophage polarization in a local immune microenvironment that favors osteogenesis and implant-to-bone *** the well-known effects of bioactive metallic ions on osteogenesis,how extracellular metallic ions manipulate immune cells in bone tissue microenvironments toward osteogenesis and subsequent bone formation has rarely been ***,we investigate the osteoimmunomodulatory effect of an extracellular bioactive cation(Mg^(2+))in the bone tissue microenvironment using custom-made poly lactic-co-glycolic acid(PLGA)/MgO-alendronate microspheres that endow controllable release of magnesium *** results suggest that the Mg^(2+)-controlled tissue microenvironment can effectively induce macrophage polarization from the M0 to M2 phenotype via the enhancement of anti-inflammatory(IL-10)and pro-osteogenic(BMP-2 and TGF-β1)cytokines *** also generates a favorable osteoimmune microenvironment that facilitates the proliferation and osteogenic differentiation of bone marrow mesenchymal stem *** in vivo results further verify that a large amount of bony tissue,with comparable bone mineral density and mechanical properties,has been generated at an early post-surgical stage in rat intramedullary bone defect *** study demonstrates that the concept of in situ immunomodulated osteogenesis can be realized in a controlled magnesium tissue microenvironment.

关键词： Bone regeneration Osteoimmunomodulatory property Osteoimmune environment Macrophage polarization Magnesium ions

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A Bi-level Programming Guiding Electrolytic Aluminum Load for Demand Response

A Bi-level Programming Guiding Electrolytic Aluminum Load fo...

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2020 IEEE/IAS Industrial and Commercial Power System Asia, I and CPS Asia 2020

作者： Zeng, Kaiwen Wang, Haizhu Liu, Jianing Dong, Chao Lan, Xinbin Wang, Chenglong Le, Lingling Ai, Xiaomeng Guangdong Power Grid Power Dispatch Control Center Guangzhou China Huazhong University of Science and Technology State Key Laboratory of Advanced Electromagnetic Engineering and Technology Wuhan China

ISBN: (纸本)9781728143033

The electrolytic aluminum accounts for about 7% of China's total electricity use and has great potential for demand-side response (DR) with smart grid technologies. This paper focuses on the optimal scheduling of the electrolytic aluminum with DR function. The bi-level optimization model is proposed to guide electrolytic aluminum load for providing DR. In the proposed optimization model, the upper-level problem is to minimize the system operational cost, while the lower-level problem is to maximize the profit of the aluminum plant. The Karush-Kuhn-Tucker optimality conditions for the lower-level problem is derived, and the bi-level problem is reformulated as the mix-integer quadratic programming problem. The simulation results demonstrate that the proposed bi-level programming can not only reduce the operational cost of the power system, but also increase the profit of the electrolytic aluminum plant when it provides DR services. © 2020 IEEE.

关键词： Aluminum plants

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Integrated Modeling and Analysis of PEMFC based on Model Parameters Identification

Integrated Modeling and Analysis of PEMFC based on Model Par...

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Electrical engineering (CIYCEE), IEEE China International Youth Conference on

作者： Zigan Xu Qi Chen Wuhan National High Magnetic Field Center and the State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan China

ISBN: (纸本)9781665400657

Based on mechanism analysis of proton exchange membrane fuel cell (PEMFC), a semi mechanism and semi empirical steady-state simplified model is established by adopting reasonable and necessary assumptions, which helps the study of fuel cell polarization curves. Taking external conditions such as temperature, pressure and current density as variables, the model identifies fitting parameters by linear regression according to the experimental data, which proves its strong universality and generalization ability. In order to further study the output characteristics of PEMFC, a dynamic model is established in Matlab/Simulink to reflect the changes of output voltage and internal gas components. Considering different operating conditions and current requirements, the model is conductive to optimizing the structural design of the PEMFC, improving its operating performance and developing a real time control system.

关键词： Analytical models Temperature distribution Heuristic algorithms Fitting Linear regression Fuel cells Control systems

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Modeling and HIL Test of a D-PMSG Connected to Power System with Damping Control for Real Time Studies

Modeling and HIL Test of a D-PMSG Connected to Power System ...

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IEEE Asia Power and Energy engineering Conference (APEEC)

作者： Jue Hou Zhou Liu Shaorong Wang Zhe Chen The State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic Engineering Huazhong University of Science and Technology Wuhan China Aalborg University Aalborg Denmark

Since increasing renewable sources are integrated to power system, dynamic behavior of power system turns complicated. This paper proposes a detailed direct-driven wind permanent magnet synchronous generator (D-PMSG) connected to power system simulation structure that combines Real Time Digital Simulator (RTDS) and an additional control device in LabVIEW using discretization to implement the control hardware-in-the-loop (CHIL) simulation. Feasibility demonstration of RTDS model using large-and-small time step are demonstrated in real time simulation. Control effect optimization of damping method is conducted based on case studies in CHIL testing.

关键词： Damping Computational modeling Power system dynamics Transfer functions Wind power generation Real-time systems Mathematical model

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Microwave reflectometer for density measurement on J-TEXT tokamak 1

Microwave reflectometer for density measurement on J-TEXT to...

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1st IEEE China International Youth Conference on Electrical engineering, CIYCEE 2020

作者： Ren, Xiehang Yang, Zhoujun Huazhong University of Science and Technology School of Electrical and Electronic Engineering International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics State Key Laboratory of Advanced Electromagnetic Engineering and Technology Wuhan430074 China

ISBN: (纸本)9781728196596

Microwave reflectometer is an essential diagnostic tool with high spatial and temporal resolution for the measurement of plasma density profile. In recent years, a microwave reflectometry system has been developed and optimized on the J-TEXT tokamak. It consists of three parts: Q band (33-50GHz) with extra-ordinary mode (X-mode), V band (50-75GHz) with X mode and Q band with ordinary mode (O-mode). Its measurement range covers from the edge to core of the low field side plasma. To obtain a linear frequency sweep, the dynamic calibration of the voltage control oscillator (VCO) is completed. The profile measured by the reflectometer is in good agreement with the result of the polarimetry. © 2020 IEEE.

关键词： Reflectometers

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Simulation analysis on the capacity occupancy of reactive power equipment under DC bias of transformers

Simulation analysis on the capacity occupancy of reactive po...

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2022 Annual Meeting of CSEE Study Committee of HVDC and Power Electronics (HVDC 2022)

作者： Z. Xie J. Deng H. Zhou X. Lin J. Zhang Z. Li J. Wei Extra-High-Voltage Power Transmission Company of China Southern Power Grid Guangzhou People's Republic of China State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan People's Republic of China

When the high voltage direct current (HVDC) system operates in ground-return-mode (GRM), ground return current with high amplitude up to several thousand amperes will penetrate into the earth. Such DC current will flow through AC lines with star-connecting and grounding at both ends, and intrude the neutral point of the transformers of the line in turn. Therefore, it will increase the reactive power consumption of the transformer and occupy the capacity of reactive power compensation equipment, as well as threaten the security and stability of the power grid. A simulation model of typical substation system operating under DC bias is established, based on which the quantitative analysis of the variation of the excitation current and the condition of reactive power consumption for transformers under different bias current is carried out. The analysis results show that the excitation current is seriously distorted and the reactive power consumed increases sharply under DC bias current with high amplitude, which occupies a large amount of reactive power compensation equipment capacity. Therefore, extremely adverse impact can be brought out on the reactive power balance and the voltage regulation of the power grid. In addition, the results of this paper are of significant reference value for researches on the reactive power characteristics of DC bias as well as the support capability of short-circuit voltage under DC bias.

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Upgrade of operation mode of bipolar pulse power supply on J-TEXT 1

Upgrade of operation mode of bipolar pulse power supply on J...

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1st IEEE China International Youth Conference on Electrical engineering, CIYCEE 2020

作者： Peng, Shiyi Ding, Yonghua Rao, Bo Wang, Nengchao Li, Mao Huazhong University of Science and Technology International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic Engineering Wuhan430074 China

ISBN: (纸本)9781728196596

With the in-depth study on the physical mechanism of mode locking, penetrating and tearing mode suppression, the original RMP power supply system has been unable to meet the experimental requirements. In order to make RMP coils have more connection methods to generate more diverse magnetic field configuration and larger current, this paper redesigns a new control system for bipolar pulse AC power supply, which make it upgrade to a power supply that can operate in DC operation mode, moreover, the output current can be reversed in one shot. Besides, the control strategy, protection, real-time detection and waveform display can meet the requirements of normal operation. Finally, performance of this new control system is tested on bipolar pulse power supply. © 2020 IEEE.

关键词： Field programmable gate arrays (FPGA)

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Numerical simulation of tearing mode suppression by applying non-resonant magnetic perturbations on J-TEXT 1

Numerical simulation of tearing mode suppression by applying...

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1st IEEE China International Youth Conference on Electrical engineering, CIYCEE 2020

作者： Gu, Fan Jiang, Zhonghe Liang, Yunfeng Zhou, Song Wang, Zhaosu Xiong, Jingyu Yuan, Jianjun Huazhong University of Science and Technology International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic Engineering Wuhan430074 China

ISBN: (纸本)9781728196596

Numerical simulation of tearing mode suppression by applying non-resonant magnetic perturbations (non-RMPs) has been carried out in the J-TEXT tokamak based on the NIMROD (Non-Ideal Magnetohydrodynamics with Rotation, Open Discussion) code. In the present work, we investigate the growth of n = 1 and n = 2 (n is the toroidal mode number) magnetohydrodynamics (MHD) instabilities, mainly as tearing modes, in response to different modes and amplitudes of non-RMPs generated by the external helical coils. It is found that the tearing mode can be stabilized by non-RMPs, especially for the non-RMPs with mode m/n = -1/1 (m is the poloidal mode number) and coil current IMP = 4kA. © 2020 IEEE.

关键词： Magnetoplasma

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Hydrogen embrittlement in a CoCrNi medium-entropy alloy fabricated via laser powder bed fusion: Characteristic intergranular cracking and hydrogen-enhanced twinning

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Journal of Materials Science & technology 2026年 240卷 201-213页

作者： Tingshu Chen Hang Su Motomichi Koyama Hong Luo Sui Wang Zihan Chen Anqing Fu Yanan Li Yao Zhang State Key Laboratory of Oil and Gas Equipment CNPC Tubular Goods Research Institute CNPC Tubular Goods Research Institute Xi’an 710077 China Institute for Materials Research Tohoku University 2-1-1 Katahira Aoba-ku Sendai 980-8577 Japan Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology Beijing Beijing 100083 China

In this study, we investigated the influence of hydrogen on the intergranular cracking and micro-deformation mechanism in an equiatomic CoCrNi medium entropy alloy (MEA) fabricated via laser powder bed fusion (LPBF). The LPBF-built CoCrNi MEA was rather sensitive to hydrogen embrittlement, whose elongation deteriorated significantly when introducing hydrogen concurrently during deformation. The fracture mode also changed from ductile dimples to brittle fracture facets containing tear-ridge patterns. According to the electron backscatter diffraction (EBSD) measurements, the preferential propagation path of these brittle cracks was detected along grain boundaries, i.e., intergranular (IG) fracture. In addition to the crack path, the IG crack morphological features and local plasticity evolutions were analyzed to characterize the hydrogen-induced IG cracking in LPBF-built material. More specifically, local grain refinement within the fusion boundaries resulted in a discontinuous IG crack morphology, including frequent crack coalescence and deflection, which should be responsible for forming tear-ridge patterns on IG fracture facets. Furthermore, the subgrain boundaries also significantly affected the IG cracking since they were made of dislocations, which could enrich local hydrogen concentration and promote IG crack propagation. As for micro-deformation mechanisms, hydrogen promoted the formation of stacking faults and deformation twins by reducing stacking fault energy. With ongoing hydrogen charging, the deformation twins were triggered along different planes simultaneously at the early stage of plastic deformation instead of exhibiting a sequential procedure from forming stacking faults, primary deformation twinning to secondary deformation twinning in the uncharged specimen.

关键词： Hydrogen embrittlement CoCrNi medium entropy alloy Additive manufacturing Intergranular cracking Deformation twinning

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