Electrochemical and kinetic properties of Ti 41.5 Zr 41.5 Ni 17 quasicrystal and LiH composite materials

Zhai, Xiaojie; Wang, Qingshuang; Luo, Tianhao; Zhao, Zhen; DongyanLiu,; Xing, Cheng; Shen, Xiande; Liu, Wanqiang; LiminWang,

doi:10.1016/j.materresbull.2016.09.021

Cited by 10 publications

(5 citation statements)

References 21 publications

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“…Alloying and HEBM are good strategies to regulate the H 2 generation reaction of Mg‐based alloys 9,62‐64 . The microstructures, phase compositions and electrochemical reactivity of Mg‐based alloys can be modified by the small amount of reasonable alloying elements and the hydrogen production performance is obviously improved 15,65,66 . It is difficult for the bulk Mg‐based alloys with small specific surface areas and long diffusion paths to quickly reach to high conversion yields 67‐70 .…”

Section: Introductionmentioning

confidence: 99%

“…9,[62][63][64] The microstructures, phase compositions and electrochemical reactivity of Mg-based alloys can be modified by the small amount of reasonable alloying elements and the hydrogen production performance is obviously improved. 15,65,66 It is difficult for the bulk Mg-based alloys with small specific surface areas and long diffusion paths to quickly reach to high conversion yields. [67][68][69][70] The HEBM technique is proved to be an effective way to enhance the hydrolysis H 2 generation rate and generation capacity of the Mg-based alloys.…”

mentioning

confidence: 99%

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Comparative investigation on feasible hydrolysis H ₂ production behavior of commercial Mg‐M (M = Ni, Ce, and La) binary alloys modified by high‐energy ball milling—Feasible modification strategy for Mg‐based hydrogen producing alloys

et al. 2020

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The bulk Mg-M (M = Nickel [Ni], cerium [Ce], and Lanthanum [La]) alloys are successfully ameliorated by high-energy ball milling (HEBM) to modify the hydrolysis H 2 generation performance in simulated seawater solution (3.5 wt% NaCl). The H 2 generation kinetics, rate-limiting steps, thermodynamics and the hydrolysis mechanism are investigated by combining the fitting results of the hydrolysis curves and microstructures information. The results indicate that the as-cast Mg25Ni possesses higher generation capacity and faster initial rate. The capacities of as-cast Mg25Ni, Mg30Ce, and Mg30La alloys at 48 C within 180 minutes are 760 mL g −1 , 725 mL g −1 , and 525 mL g −1. The hydrolysis H 2 generation apparent activation energies of the as-cast Mg25Ni, Mg30Ce, and Mg30La alloys are 30.92, 17.05, and 28.04 kJÁmol −1 , respectively. The HEBM technique can elevate the hydrolysis performance of Mg-M alloys. And the highest H 2 producing capacity as high as 589 mL g −1 is obtained by HEBM Mg30La alloy at 48 C within 30 minutes. The hydrolysis apparent activation energies E a are 9.57, 14.65, and 23.88 kJ/mol for HEBM Mg25Ni, Mg30Ce, and Mg30La alloys. The initial rate and the final yield of H 2 generation for Mgbased alloys are affected by the activity of matrix alloy, microstructure, particle size, surface state, and many other factors. K E Y W O R D S H 2 production, HEBM, hydrogen generation mechanism, kinetics, Mg intermediate alloys 1 | INTRODUCTION Hydrogen is currently the most appealing option for fossil fuels in the future. The production of H 2 is the primary problem of hydrogen utilization. 1-5 The hydrogen-energy process chain is consisted by the hydrogen production 6 , hydrogen storage 7-10 and regeneration. 11-13 Nowadays, the wide usages of H 2 energy are still seriously prevented

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Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Comparative investigation on feasible hydrolysis H ₂ production behavior of commercial Mg‐M (M = Ni, Ce, and La) binary alloys modified by high‐energy ball milling—Feasible modification strategy for Mg‐based hydrogen producing alloys

et al. 2020

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“…32,52,54 In comparison, microalloying and high energy ball milling (HEBM) are reasonable for improving the hydrolysis kinetics and yield Mg-based alloys. 57,58 However, the small specific surface areas of bulk Mgbased alloys prevent the achievement of rapid kinetics and high generation yields. 57,58 However, the small specific surface areas of bulk Mgbased alloys prevent the achievement of rapid kinetics and high generation yields.…”

Section: Introductionmentioning

confidence: 99%

“…55,56 The slight addition of reasonable alloying elements can improve the microstructure, phase composition, and the electrochemical activity, significantly improving the hydrogen production behavior of the Mg-based alloy. 57,58 However, the small specific surface areas of bulk Mgbased alloys prevent the achievement of rapid kinetics and high generation yields. [59][60][61][62] The HEBM technique can promote a rapid hydrolysis hydrogen generation process with high generation yield by refining the particle size, increasing the reaction-specific surface areas and shortening the medium diffusion paths.…”

Section: Introductionmentioning

confidence: 99%

Catalytic effect of EG and MoS ₂ on hydrolysis hydrogen generation behavior of high‐energy ball‐milled Mg‐10wt.%Ni alloys in NaCl solution—A powerful strategy for superior hydrogen generation performance

Hou

Wang

et al. 2019

Int J Energy Res

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Summary In this study, the metallurgical melting Mg‐10wt.%Ni (Mg10Ni) alloy is firstly modified by high‐energy ball milling (HEBM) and then surface catalysts expanded graphite (EG) or MoS2 or EG‐MoS2 are introduced to prepare Mg10Ni‐M (M = EG, MoS2, and EG‐MoS2) composites. The effects of surface catalysts on hydrolysis hydrogen generation of HEBM Mg10Ni alloy are comprehensively investigated. Their kinetics, rate‐limiting steps, and apparent activation energies are investigated by fitting the hydrolysis curves at different temperatures. The results indicate that the total hydrogen generation capacities of prepared Mg10Ni‐M (M = EG, MoS2, and EG‐MoS2) composites are 200, 170, 674, and 720 mL·g−1 within 1 minute at 291 K. The capacity and yield of Mg10Ni are 500 mL·g−1 and 56% within 15 minutes. The surface catalysts EG or MoS2 or EG‐MoS2 can distinctly elevate the initial H2 produce rate and promote the complete hydrolysis process. The highest capacity and generation yield within 15 minutes are 740.8 mL·g−1 and 91% obtained by HEBM Mg10Ni‐EG‐MoS2 composite at 291 K. The surface catalysis can promote high generation yield of Mg10Ni alloy in a short time.

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“…Icosahedral quasicrystal, such as Ti41.5Zr41.5Ni17, can be a promising candidate for hydrogen loader [12].…”

Section: Introductionmentioning

confidence: 99%

STRUCTURAL-PHASE CHANGES IN THIN FILMS AND SURFACE LAYERS OF Ti41.5Zr41.5Ni17 ALLOY, STIMULATED BY RADIATION-THERMAL IMPACT OF HYDROGEN PLASMA

Malykhin¹,

Makhlai²,

Surovitskiy³

et al. 2019

Problems of Atomic Science and Technology

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X-ray diffraction and SEM microscopy were used to study structural and phase changes in the surface layers of a Ti41.5Zr41.5Ni17 alloy bulk sample (target) and a thin film (deposited by magnetron sputtering of the target) under radiation-thermal action of pulsed hydrogen plasma with a thermal load of 0.6 MJ/m2 in QSPA Kh-50 installation. It is established that the irradiation results in the formation of a two-phase state: the icosahedral quasicrystalline phase together with the phase of the 1/1 approximant crystal (W-phase). As a result of isothermal (550⁰C) annealing, the content of the quasicrystalline phase increases.

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Electrochemical and kinetic properties of Ti 41.5 Zr 41.5 Ni 17 quasicrystal and LiH composite materials

Cited by 10 publications

References 21 publications

Comparative investigation on feasible hydrolysis H ₂ production behavior of commercial Mg‐M (M = Ni, Ce, and La) binary alloys modified by high‐energy ball milling—Feasible modification strategy for Mg‐based hydrogen producing alloys

Comparative investigation on feasible hydrolysis H ₂ production behavior of commercial Mg‐M (M = Ni, Ce, and La) binary alloys modified by high‐energy ball milling—Feasible modification strategy for Mg‐based hydrogen producing alloys

Catalytic effect of EG and MoS ₂ on hydrolysis hydrogen generation behavior of high‐energy ball‐milled Mg‐10wt.%Ni alloys in NaCl solution—A powerful strategy for superior hydrogen generation performance

STRUCTURAL-PHASE CHANGES IN THIN FILMS AND SURFACE LAYERS OF Ti41.5Zr41.5Ni17 ALLOY, STIMULATED BY RADIATION-THERMAL IMPACT OF HYDROGEN PLASMA

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Electrochemical and kinetic properties of Ti 41.5 Zr 41.5 Ni 17 quasicrystal and LiH composite materials

Cited by 10 publications

References 21 publications

Comparative investigation on feasible hydrolysis H 2 production behavior of commercial Mg‐M (M = Ni, Ce, and La) binary alloys modified by high‐energy ball milling—Feasible modification strategy for Mg‐based hydrogen producing alloys

Comparative investigation on feasible hydrolysis H 2 production behavior of commercial Mg‐M (M = Ni, Ce, and La) binary alloys modified by high‐energy ball milling—Feasible modification strategy for Mg‐based hydrogen producing alloys

Catalytic effect of EG and MoS 2 on hydrolysis hydrogen generation behavior of high‐energy ball‐milled Mg‐10wt.%Ni alloys in NaCl solution—A powerful strategy for superior hydrogen generation performance

STRUCTURAL-PHASE CHANGES IN THIN FILMS AND SURFACE LAYERS OF Ti41.5Zr41.5Ni17 ALLOY, STIMULATED BY RADIATION-THERMAL IMPACT OF HYDROGEN PLASMA

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Comparative investigation on feasible hydrolysis H ₂ production behavior of commercial Mg‐M (M = Ni, Ce, and La) binary alloys modified by high‐energy ball milling—Feasible modification strategy for Mg‐based hydrogen producing alloys

Comparative investigation on feasible hydrolysis H ₂ production behavior of commercial Mg‐M (M = Ni, Ce, and La) binary alloys modified by high‐energy ball milling—Feasible modification strategy for Mg‐based hydrogen producing alloys

Catalytic effect of EG and MoS ₂ on hydrolysis hydrogen generation behavior of high‐energy ball‐milled Mg‐10wt.%Ni alloys in NaCl solution—A powerful strategy for superior hydrogen generation performance