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Kim G, Lee S, Lee SK, Yu HJ, Cho H, Chung Y, Park TE, Lee HS, Shim W, Lee KH, Park JY, Kim YJ, Chun DW, Lee W. Revealing the Substrate Constraint Effect on the Thermodynamic Behaviour of the Pd-H through Capacitive-Based Hydrogen-Sorption Measurement. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2310333. [PMID: 38181178 DOI: 10.1002/adma.202310333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/26/2023] [Indexed: 01/07/2024]
Abstract
Mechanical constraints imposed on the Pd-H system can induce significant strain upon hydrogenation-induced expansion, potentially leading to changes in the thermodynamic behavior, such as the phase-transition pressure. However, the investigation of the constraint effect is often tricky due to the lack of simple experimental techniques for measuring hydrogenation-induced expansion. In this study, a capacitive-based measurement system is developed to monitor hydrogenation-induced areal expansion, which allows us to control and evaluate the magnitude of the substrate constraint. By using the measurement technique, the influence of substrate constraint intensity on the thermodynamic behavior of the Pd-H system is investigated. Through experiments with different constraint intensities, it is found that the diffefrence in the constraint intensity minimally affects the phase-transition pressure when the Pd-H system allows the release of constraint stress through plastic deformation. These experiments can improve the understanding of the substrate constraint behaviours of Pd-H systems allowing plastic deformation while demonstrating the potential of capacitive-based measurement systems to study the mechanical-thermodynamic coupling of M-H systems.
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Affiliation(s)
- Gwangmook Kim
- Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, South Korea
- KIURI Institute, Yonsei University, Seoul, 03722, Republic of Korea
| | - Soomin Lee
- Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, South Korea
| | - Sang-Kil Lee
- Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, South Korea
| | - Han Jun Yu
- Center for Energy Materials Research, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Hunyoung Cho
- Center for Energy Materials Research, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Youngjun Chung
- Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, South Korea
| | - Tae-Eon Park
- Center for Spintronics, Korea Institute of Science and Technology (KIST), Seoul, 02792, South Korea
| | - Hyun-Sook Lee
- Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, South Korea
| | - Wooyoung Shim
- Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, South Korea
| | - Kyu Hyoung Lee
- Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, South Korea
| | - Jeong Young Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea
| | - Yu Jin Kim
- Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, South Korea
- KIURI Institute, Yonsei University, Seoul, 03722, Republic of Korea
| | - Dong Won Chun
- Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, South Korea
- Center for Energy Materials Research, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
- Yonsei-KIST Convergence Research Institute, Yonsei University, Seoul, 03722, Republic of Korea
| | - Wooyoung Lee
- Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, South Korea
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Kammerer JA, Feist F, Ryklin D, Sarkar A, Barner-Kowollik C, Schröder RR. Direct Visualization of Homogeneous Chemical Distribution in Functional Polyradical Microspheres. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2211074. [PMID: 36639825 DOI: 10.1002/adma.202211074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/05/2023] [Indexed: 06/17/2023]
Abstract
It is demonstrated that the postfunctionalization of solid polymeric microspheres can generate fully and throughout functionalized materials, contrary to the expectation that core-shell structures are generated. The full functionalization is illustrated on the example of photochemically generated microspheres, which are subsequently transformed into polyradical systems. Given the all-organic nature of the functionalized microspheres, characterization methods with high analytical sensitivity and spatial resolution are pioneered by directly visualizing the inner chemical distribution of the postfunctionalized microspheres based on characteristic electron energy loss signals in transmission electron microscopy (TEM). Specifically, ultrasonic ultramicrotomy is combined successfully with electron energy loss spectroscopy (EELS) and electron spectroscopic imaging (ESI) during TEM. These findings open a key avenue for analyzing all-organic low-contrast soft-matter material structures, while the specifically investigated system concomitantly holds promise as an all-radical solid-state functional material.
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Affiliation(s)
- Jochen A Kammerer
- 3DMM2O, Cluster of Excellence (EXC-2082/1-390761711) and Cryo Electron Microscopy, BioQuant, Heidelberg University and University Hospital, Im Neuenheimer Feld 267, 69120, Heidelberg, Germany
- School of Chemistry and Physics, Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD 4000, Australia
| | - Florian Feist
- 3DMM2O, Cluster of Excellence (EXC-2082/1-390761711) and Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Daniel Ryklin
- 3DMM2O, Cluster of Excellence (EXC-2082/1-390761711) and Cryo Electron Microscopy, BioQuant, Heidelberg University and University Hospital, Im Neuenheimer Feld 267, 69120, Heidelberg, Germany
| | - Abhishek Sarkar
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- KIT-TUD Joint Research Laboratory Nanomaterials-Technische Universität Darmstadt, Otto-Berndt-Str. 3, 64287, Darmstadt, Germany
| | - Christopher Barner-Kowollik
- School of Chemistry and Physics, Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD 4000, Australia
- 3DMM2O, Cluster of Excellence (EXC-2082/1-390761711) and Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Rasmus R Schröder
- 3DMM2O, Cluster of Excellence (EXC-2082/1-390761711) and Cryo Electron Microscopy, BioQuant, Heidelberg University and University Hospital, Im Neuenheimer Feld 267, 69120, Heidelberg, Germany
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Zhang Y, Zheng J, Lu Z, Song M, He J, Wu F, Zhang L. Boosting the hydrogen storage performance of magnesium hydride with metal organic framework-derived Cobalt@Nickel oxide bimetallic catalyst. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2022.06.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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