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author:

Ur Rehman, Ata (Ur Rehman, Ata.) [1] | Zhao, Tianyu (Zhao, Tianyu.) [2] | Shah, Muhammad Zahir (Shah, Muhammad Zahir.) [3] | Khan, Yaqoob (Khan, Yaqoob.) [4] | Hayat, Asif (Hayat, Asif.) [5] | Dang, Changwei (Dang, Changwei.) [6] | Zheng, Maosheng (Zheng, Maosheng.) [7] | Yun, Sining (Yun, Sining.) [8]

Indexed by:

EI

Abstract:

2D MXene nanohybrid is a next-generation energy-storage material. Here, we demonstrate a novel thermochemical heat storage material using magnesium sulfate heptahydrate/titanium carbide and MXene (MgSO4/Ti3C2Tx) with improved hydration/dehydration enthalpy, superior thermal conductivity, good cyclic ability, maximum water sorption performance, and larger thermal energy conversion. The TG-DSC fitted with a Wetsys flow humidity generator shows outstanding thermal performance and larger hydration for MgSO4/Ti3C2Tx (1963 J/g) and dehydration (1861 J/g) enthalpies with 5 % fluctuation as compared to pure MgSO4 (38 %). The cyclicability results showed that MgSO4/MXene has good stability of TCMs across several charging/discharging cycles (up to 20 cycles), confirming that the MXene matrix avoids hydrated salt agglomeration and displays an average of 12 % fluctuation. This illustrates that prepared composites potentially improve storage performance. The MgSO4/Ti3C2Tx nanohybrid exhibit a better radiation absorption and 45 % longer backup than the pristine MgSO4 salt. TEM study revealed that maximum salt contents can be located in the interlayer gaps, predicted sheets thickness of the MgSO4/MXene layer to be 16 Å and the Ti3C2Tx layers to be 7.3 Å. Nanohybrid has stronger water sorption than MgSO4 due to MXene nanosheets larger interlayer gaps. The results conclude that the resultant MgSO4/MXene has excellent long-term thermal energy storage, photo-to-thermal conversion and larger water sorption performance. The study validates the effectiveness of nanohybrid material as a promising candidate for thermochemical heat storage applications and set to pave the way to explore other hybrid systems to improve the efficiency of thermochemical energy storage systems. © 2022 Elsevier Ltd

Keyword:

Dehydration Enthalpy Heat storage Hybrid systems Hydration Magnesium compounds Sorption Storage (materials) Sulfur compounds Thermal conductivity Thermal energy

Community:

  • [ 1 ] [Ur Rehman, Ata]Functional Materials Laboratory (FML), School of Materials Science and Engineering, Xi'an University of Architecture and Technology, Shaanxi, Xi'an; 710055, China
  • [ 2 ] [Zhao, Tianyu]School of Chemical Engineering, Northwest University, Xi'an; 710069, China
  • [ 3 ] [Shah, Muhammad Zahir]Key Laboratory of Synthesis and Natural Function Molecules Chemistry of Ministry of Education, School of Chemistry & Materials Science, Northwest University, Xi'an; 710127, China
  • [ 4 ] [Khan, Yaqoob]Nanosciences and Technology Department, National Centre for Physics Islamabad, 45320, Pakistan
  • [ 5 ] [Hayat, Asif]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, China
  • [ 6 ] [Dang, Changwei]Functional Materials Laboratory (FML), School of Materials Science and Engineering, Xi'an University of Architecture and Technology, Shaanxi, Xi'an; 710055, China
  • [ 7 ] [Zheng, Maosheng]School of Chemical Engineering, Northwest University, Xi'an; 710069, China
  • [ 8 ] [Yun, Sining]Functional Materials Laboratory (FML), School of Materials Science and Engineering, Xi'an University of Architecture and Technology, Shaanxi, Xi'an; 710055, China
  • [ 9 ] [Yun, Sining]Qinghai Building and Materials Research Academy Co., Ltd, The Key Lab of Plateau Building and Eco-community in Qinghai, Qinghai, Xining; 810000, China

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Source :

Applied Energy

ISSN: 0306-2619

Year: 2023

Volume: 332

1 0 . 1

JCR@2023

1 0 . 1 0 0

JCR@2023

ESI HC Threshold:35

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 8

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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