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Liu Y, Zhu J, Liu Z, Zhu Y, Zhang J, Li L. Magnesium Nanoparticles With Pd Decoration for Hydrogen Storage. Front Chem 2020; 7:949. [PMID: 32140457 PMCID: PMC7042461 DOI: 10.3389/fchem.2019.00949] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 12/31/2019] [Indexed: 02/04/2023] Open
Abstract
In this work, Magnesium nanoparticles with Pd decoration, ranging from 40 to 70 nm, were successfully coprecipitated from tetrahydrofuran (THF) solution, assigned as the Mg–Pd nanocomposite. The Mg–Pd nanocomposite exhibits superior hydrogen storage properties. For the hydrogenated Mg–Pd nanocomposite at 150°C, the onset dehydrogenation temperature is significantly reduced to 216.8°C, with a lower apparent activation energy for dehydrogenation of 93.8 kJ/mol H2. High-content γ-MgH2 formed during the hydrogenation process, along with PH0.706, contributes to the enhancing of desorption kinetics. The Mg–Pd nanocomposite can take up 3.0 wt% hydrogen in 2 h at a temperature as low as 50°C. During lower hydrogenation temperatures, Pd can dissociate hydrogen and create a hydrogen diffusion pathway for the Mg nanoparticles, leading to the decrease of the hydrogenation apparent activation energy (44.3 kJ/mol H2). In addition, the Mg–Pd alloy formed during the hydrogenation/dehydrogenation process can play an active role in the reversible metal hydride transformation, destabilizing the MgH2.
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Affiliation(s)
- Yana Liu
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, China.,Jiangsu Collaborative Innovation Centre for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing, China
| | - Jinglian Zhu
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, China.,Jiangsu Collaborative Innovation Centre for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing, China
| | - Zhibing Liu
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, China.,Jiangsu Collaborative Innovation Centre for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing, China
| | - Yunfeng Zhu
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, China.,Jiangsu Collaborative Innovation Centre for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing, China
| | - Jiguang Zhang
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, China.,Jiangsu Collaborative Innovation Centre for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing, China
| | - Liquan Li
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, China.,Jiangsu Collaborative Innovation Centre for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing, China
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Zhang Y, Ji Y, Yuan Z, Bu W, Qi Y, Guo S. An investigation of gaseous hydrogen storage characterizations of Mg–Y–Ni–Cu alloys synthesized by melt spinning. RSC Adv 2018; 8:28969-28977. [PMID: 35547979 PMCID: PMC9084367 DOI: 10.1039/c8ra05429k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 08/01/2018] [Indexed: 01/10/2023] Open
Abstract
Melt spinning was successfully utilized to prepare Mg25−xYxNi9Cu (x = 0, 1, 3, 5, 7) alloys, producing nanocrystalline and amorphous structures with improved hydrogenation and dehydrogenation performances. The influence of spinning rate on hydrogenation and dehydrogenation thermodynamics and kinetics was studied in detail. XRD and TEM were utilized to characterize the alloy structures. Hydrogenation and dehydrogenation performances were investigated by Sievert apparatus, DSC and TGA connected to a H2 detector. Dehydrogenation activation energies were estimated using both Arrhenius and Kissinger methods. Results show that melt spinning significantly decreases thermodynamic parameters (ΔH and ΔS) and ameliorates desorption kinetics. Dehydrogenation activation energy markedly lowers with increase in spinning rate and is the real driver of amelioration of dehydrogenation kinetics caused by increasing Y content. Melt spinning enables the crystalline alloy to be strongly disordered and nanostructured, thus enhancing the hydrogen storage kinetics of Mg25−xYxNi9Cu.![]()
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Affiliation(s)
- Yanghuan Zhang
- Key Laboratory of Integrated Exploitation of Baiyun Obo Multi-Metal Resources
- Inner Mongolia University of Science and Technology
- Baotou 014010
- China
- Department of Functional Material Research
| | - Yanquan Ji
- Key Laboratory of Integrated Exploitation of Baiyun Obo Multi-Metal Resources
- Inner Mongolia University of Science and Technology
- Baotou 014010
- China
- Department of Functional Material Research
| | - Zeming Yuan
- Key Laboratory of Integrated Exploitation of Baiyun Obo Multi-Metal Resources
- Inner Mongolia University of Science and Technology
- Baotou 014010
- China
- Department of Functional Material Research
| | - Wengang Bu
- Key Laboratory of Integrated Exploitation of Baiyun Obo Multi-Metal Resources
- Inner Mongolia University of Science and Technology
- Baotou 014010
- China
- Department of Functional Material Research
| | - Yan Qi
- Department of Functional Material Research
- Central Iron and Steel Research Institute
- Beijing 100081
- China
| | - Shihai Guo
- Department of Functional Material Research
- Central Iron and Steel Research Institute
- Beijing 100081
- China
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Hydrogenation of Mg nanofilms catalyzed by size-selected Pd nanoparticles: Observation of localized MgH2 nanodomains. J Catal 2016. [DOI: 10.1016/j.jcat.2016.01.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Xin G, Yang J, Fu H, Li W, Zheng J, Li X. Excellent hydrogen sorption kinetics of thick Mg–Pd films under mild conditions by tailoring their structures. RSC Adv 2013. [DOI: 10.1039/c3ra21431a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Liu Y, Wang GC. Air stability of low-temperature dehydrogenation of Pd-decorated Mg blades. NANOTECHNOLOGY 2012; 23:025401. [PMID: 22166731 DOI: 10.1088/0957-4484/23/2/025401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We demonstrated that Pd-decorated Mg blades are air-stable for hydrogen storage with a low desorption temperature of 373 K. Pd-catalyst-decorated Mg blades were prepared by 64° oblique incident angle thermal deposition on a rotatable substrate with the rotation axis perpendicular to the substrate. The hydrogen desorption from Pd-decorated Mg blades was performed and recorded by temperature-programmed desorption (TPD) for repeated hydrogenation–dehydrogenation cycles. The near-surface structural and compositional changes were characterized in situ by reflection high energy electron diffraction (RHEED). The Mg blades were intentionally exposed to air at elevated temperatures (333 or 358 K) between certain cycles. It was found that the degradation of the storage capacity was affected weakly by the air exposure at moderate temperatures. The kinetics of the hydrogen desorption was sensitive to air exposure but recoverable through a replenishment of fresh catalyst Pd on the surface of the oxidized Mg blades.
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Affiliation(s)
- Yu Liu
- Department of Physics, Applied Physics and Astronomy, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY 12180, USA
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Xin G, Yang J, Wang C, Zheng J, Li X. Superior (de)hydrogenation properties of Mg–Ti–Pd trilayer films at room temperature. Dalton Trans 2012; 41:6783-90. [DOI: 10.1039/c2dt30253e] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Xin G, Yang J, Zhang G, Zheng J, Li X. Promising hydrogen storage properties and potential applications of Mg–Al–Pd trilayer films under mild conditions. Dalton Trans 2012; 41:11555-8. [DOI: 10.1039/c2dt30946g] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Adams BD, Ostrom CK, Chen A. Hydrogen electrosorption into Pd-Cd nanostructures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:7632-7637. [PMID: 20099788 DOI: 10.1021/la9044072] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Hydrogen-absorbing materials are crucial for both the purification and storage of hydrogen. Pd and Pd-based alloys have been studied extensively for their use as both hydrogen dissociation catalysts and hydrogen selective membrane materials. It is known that incorporating metal atoms of different sizes into the Pd lattice has a major impact on the hydrogen absorption process. In this paper, hydrogen electrosorption into nanostructured Pd-Cd alloys has been studied for different compositions of Cd that varied from 0 to 15 at. %. The low cost of Cd makes it an attractive material to combine with Pd for hydrogen sorption. A combination of chronoamperometry and cyclic voltammetric experiments was used to determine the ratio of the H/(Pd + Cd) and the kinetics of hydrogen sorption into these Pd-Cd alloys at different potentials. It was found that the maximum H/(Pd + Cd) value was 0.66 for pure Pd, and this decreased with increasing the amount of Cd. Also, the alpha (solid solution) to beta phase (metal hydride) hydrogen transition was determined to be the slowest step in the absorption process and was practically eliminated when an optimum amount of Cd atoms was doped (i.e., Pd-Cd(15%)). With increasing the amount of Cd, more hydrogen was absorbed into the Pd-Cd nanostructures at the higher potentials (the alpha phase region). The faster kinetics, along with the decrease in the phase transition of hydrogen sorption into the Pd-Cd nanostructures when compared to pure Pd, makes the Pd-Cd nanostructures attractive for use as a hydrogen dissociation catalytic capping layer for other metal hydrides or as a hydrogen selective membrane.
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Affiliation(s)
- Brian D Adams
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B 5E1, Canada
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