Doubly Coated, Organic–Inorganic Paraffin Phase Change Materials: Zinc Oxide Coating of Hermetically Encapsulated Paraffins

Alexey A. Mikhaylov; Alexander G. Medvedev; Dmitry A. Grishanov; Sergey Sladkevich; Zhichuan J. Xu; Konstantin A. Sakharov; Petr V. Prikhodchenko; Ovadia Lev

doi:10.1002/admi.201900368

Doubly Coated, Organic–Inorganic Paraffin Phase Change Materials: Zinc Oxide Coating of Hermetically Encapsulated Paraffins

Alexey A. Mikhaylov, Alexander G. Medvedev, Dmitry A. Grishanov, Sergey Sladkevich, Zhichuan J. Xu, Konstantin A. Sakharov, Petr V. Prikhodchenko^*, Ovadia Lev

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

A way to benefit from the favorable attributes of both organic microencapsulation, including the hermetic sealing of the organic phase change material (PCM) core, and inorganic microencapsulation, including dispersibility in aqueous and polar solvents and improved thermal conductivity, is outlined. The approach is demonstrated by uniformly coating organic polymer encapsulated PCMs with zinc oxide, which allows thermal percolation through the interconnected inorganic shells. It is demonstrated that hydrogen peroxide sol–gel processing can be used to form such uniform zinc peroxide coatings which are then converted by chemical treatment to zinc oxide shells. The way to overcome different challenges associated with the synthesis of thin film coatings of organic PCMs by zinc oxide are addressed, and the favorable attributes of the new doubly coated PCM capsules are demonstrated.

Original language	American English
Article number	1900368
Journal	Advanced Materials Interfaces
Volume	6
Issue number	12
DOIs	https://doi.org/10.1002/admi.201900368
State	Published - 21 Jun 2019

Bibliographical note

Funding Information:
This research was supported by a grant from the National Research Foundation, Prime Minister Office, Singapore under its Campus of Research Excellence and Technological Enterprise (CREATE) programme. The financial support of the Ministry of Science is thankfully acknowledged. The authors thank the Harvey M. Krueger Family Centre for Nanoscience and Nanotechnology of the Hebrew University of Jerusalem and the Israel Science Foundation. The zinc peroxide deposition was supported by the Russian Science Foundation (No.17-73-10482). CHNS-analysis was performed at the User Facilities Center of IGIC RAS within the State Assignment on Fundamental Research to the Kurnakov Institute of General and Inorganic Chemistry. We appreciate Ivan Karpov’s help in preparing the images.

Funding Information:
This research was supported by a grant from the National Research Foundation, Prime Minister Office, Singapore under its Campus of Research Excellence and Technological Enterprise (CREATE) programme. The financial support of the Ministry of Science is thankfully acknowledged. The authors thank the Harvey M. Krueger Family Centre for Nanoscience and Nanotechnology of the Hebrew University of Jerusalem and the Israel Science Foundation. The zinc peroxide deposition was supported by the Russian Science Foundation (No. 17-73-10482). CHNS-analysis was performed at the User Facilities Center of IGIC RAS within the State Assignment on Fundamental Research to the Kurnakov Institute of General and Inorganic Chemistry. We appreciate Ivan Karpov's help in preparing the images.

Publisher Copyright:
© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

phase change materials
thermal conductivity
zinc oxide

Access to Document

10.1002/admi.201900368

Cite this

@article{8b05c2542b6b4909adcdb867910897a2,

title = "Doubly Coated, Organic–Inorganic Paraffin Phase Change Materials: Zinc Oxide Coating of Hermetically Encapsulated Paraffins",

abstract = "A way to benefit from the favorable attributes of both organic microencapsulation, including the hermetic sealing of the organic phase change material (PCM) core, and inorganic microencapsulation, including dispersibility in aqueous and polar solvents and improved thermal conductivity, is outlined. The approach is demonstrated by uniformly coating organic polymer encapsulated PCMs with zinc oxide, which allows thermal percolation through the interconnected inorganic shells. It is demonstrated that hydrogen peroxide sol–gel processing can be used to form such uniform zinc peroxide coatings which are then converted by chemical treatment to zinc oxide shells. The way to overcome different challenges associated with the synthesis of thin film coatings of organic PCMs by zinc oxide are addressed, and the favorable attributes of the new doubly coated PCM capsules are demonstrated.",

keywords = "phase change materials, thermal conductivity, zinc oxide",

author = "Mikhaylov, {Alexey A.} and Medvedev, {Alexander G.} and Grishanov, {Dmitry A.} and Sergey Sladkevich and Xu, {Zhichuan J.} and Sakharov, {Konstantin A.} and Prikhodchenko, {Petr V.} and Ovadia Lev",

note = "Funding Information: This research was supported by a grant from the National Research Foundation, Prime Minister Office, Singapore under its Campus of Research Excellence and Technological Enterprise (CREATE) programme. The financial support of the Ministry of Science is thankfully acknowledged. The authors thank the Harvey M. Krueger Family Centre for Nanoscience and Nanotechnology of the Hebrew University of Jerusalem and the Israel Science Foundation. The zinc peroxide deposition was supported by the Russian Science Foundation (No.17-73-10482). CHNS-analysis was performed at the User Facilities Center of IGIC RAS within the State Assignment on Fundamental Research to the Kurnakov Institute of General and Inorganic Chemistry. We appreciate Ivan Karpov{\textquoteright}s help in preparing the images. Funding Information: This research was supported by a grant from the National Research Foundation, Prime Minister Office, Singapore under its Campus of Research Excellence and Technological Enterprise (CREATE) programme. The financial support of the Ministry of Science is thankfully acknowledged. The authors thank the Harvey M. Krueger Family Centre for Nanoscience and Nanotechnology of the Hebrew University of Jerusalem and the Israel Science Foundation. The zinc peroxide deposition was supported by the Russian Science Foundation (No. 17-73-10482). CHNS-analysis was performed at the User Facilities Center of IGIC RAS within the State Assignment on Fundamental Research to the Kurnakov Institute of General and Inorganic Chemistry. We appreciate Ivan Karpov's help in preparing the images. Publisher Copyright: {\textcopyright} 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2019",

month = jun,

day = "21",

doi = "10.1002/admi.201900368",

language = "American English",

volume = "6",

journal = "Advanced Materials Interfaces",

issn = "2196-7350",

publisher = "John Wiley and Sons Ltd",

number = "12",

}

TY - JOUR

T1 - Doubly Coated, Organic–Inorganic Paraffin Phase Change Materials

T2 - Zinc Oxide Coating of Hermetically Encapsulated Paraffins

AU - Mikhaylov, Alexey A.

AU - Medvedev, Alexander G.

AU - Grishanov, Dmitry A.

AU - Sladkevich, Sergey

AU - Xu, Zhichuan J.

AU - Sakharov, Konstantin A.

AU - Prikhodchenko, Petr V.

AU - Lev, Ovadia

N1 - Funding Information: This research was supported by a grant from the National Research Foundation, Prime Minister Office, Singapore under its Campus of Research Excellence and Technological Enterprise (CREATE) programme. The financial support of the Ministry of Science is thankfully acknowledged. The authors thank the Harvey M. Krueger Family Centre for Nanoscience and Nanotechnology of the Hebrew University of Jerusalem and the Israel Science Foundation. The zinc peroxide deposition was supported by the Russian Science Foundation (No.17-73-10482). CHNS-analysis was performed at the User Facilities Center of IGIC RAS within the State Assignment on Fundamental Research to the Kurnakov Institute of General and Inorganic Chemistry. We appreciate Ivan Karpov’s help in preparing the images. Funding Information: This research was supported by a grant from the National Research Foundation, Prime Minister Office, Singapore under its Campus of Research Excellence and Technological Enterprise (CREATE) programme. The financial support of the Ministry of Science is thankfully acknowledged. The authors thank the Harvey M. Krueger Family Centre for Nanoscience and Nanotechnology of the Hebrew University of Jerusalem and the Israel Science Foundation. The zinc peroxide deposition was supported by the Russian Science Foundation (No. 17-73-10482). CHNS-analysis was performed at the User Facilities Center of IGIC RAS within the State Assignment on Fundamental Research to the Kurnakov Institute of General and Inorganic Chemistry. We appreciate Ivan Karpov's help in preparing the images. Publisher Copyright: © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2019/6/21

Y1 - 2019/6/21

N2 - A way to benefit from the favorable attributes of both organic microencapsulation, including the hermetic sealing of the organic phase change material (PCM) core, and inorganic microencapsulation, including dispersibility in aqueous and polar solvents and improved thermal conductivity, is outlined. The approach is demonstrated by uniformly coating organic polymer encapsulated PCMs with zinc oxide, which allows thermal percolation through the interconnected inorganic shells. It is demonstrated that hydrogen peroxide sol–gel processing can be used to form such uniform zinc peroxide coatings which are then converted by chemical treatment to zinc oxide shells. The way to overcome different challenges associated with the synthesis of thin film coatings of organic PCMs by zinc oxide are addressed, and the favorable attributes of the new doubly coated PCM capsules are demonstrated.

AB - A way to benefit from the favorable attributes of both organic microencapsulation, including the hermetic sealing of the organic phase change material (PCM) core, and inorganic microencapsulation, including dispersibility in aqueous and polar solvents and improved thermal conductivity, is outlined. The approach is demonstrated by uniformly coating organic polymer encapsulated PCMs with zinc oxide, which allows thermal percolation through the interconnected inorganic shells. It is demonstrated that hydrogen peroxide sol–gel processing can be used to form such uniform zinc peroxide coatings which are then converted by chemical treatment to zinc oxide shells. The way to overcome different challenges associated with the synthesis of thin film coatings of organic PCMs by zinc oxide are addressed, and the favorable attributes of the new doubly coated PCM capsules are demonstrated.

KW - phase change materials

KW - thermal conductivity

KW - zinc oxide

UR - http://www.scopus.com/inward/record.url?scp=85065231975&partnerID=8YFLogxK

U2 - 10.1002/admi.201900368

DO - 10.1002/admi.201900368

M3 - Article

AN - SCOPUS:85065231975

SN - 2196-7350

VL - 6

JO - Advanced Materials Interfaces

JF - Advanced Materials Interfaces

IS - 12

M1 - 1900368

ER -

Doubly Coated, Organic–Inorganic Paraffin Phase Change Materials: Zinc Oxide Coating of Hermetically Encapsulated Paraffins

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Cite this