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This work was supported by both BIOFIRESAFE (No.: PID2020-117274RB-I00) and NEWSAFE (No.: PID2022-143324NA-I00) Projects funded by Ministerio De Ciencia E Innovacion (MINECO, Spain). This work was also partially supported by the Agencia Estatal de Investigacion of Spanish Government [PROJECTS TED2021-131102B-C21 and PID2022-138496OB-I00] .

Analysis of institutional authors

Collado, IgnacioAuthorVazquez-Lopez, AntonioAuthorProlongo, Silvia GAuthor

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MXene multi-functionalization of polyrotaxane based PCMs and the applications in electronic devices thermal management

Publicated to:Nano Materials Science. 6 (5): 495-503 - 2024-10-01 6(5), DOI: 10.1016/j.nanoms.2023.12.004

Authors: Yin, Guangzhong; Lopez, Alba Marta; Collado, Ignacio; Vazquez-Lopez, Antonio; Ao, Xiang; Hobson, Jose; Prolongo, Silvia G; Wang, Deyi

Affiliations

IMDEA Mat Inst, C Eric Kandel 2, Madrid 28906, Spain - Author
Univ Carlos III Madrid, Dept Ciencia Ingn Mat Ingn Quim, IAAB, Avda Univ 30, Madrid 28911, Spain - Author
Univ Francisco Vitoria, Escuela Politecn Super, Ctra Pozuelo Majadahonda Km 1-800, Madrid 28223, Spain - Author
Univ Rey Juan Carlos, Escuela Super Ciencias Expt & Tecnol, Mat Sci & Engn Area, C Tulipan S-N, Madrid 28933, Spain - Author
Univ Rey Juan Carlos, Inst Tecnol Para Sostenibil, C Tulipan S-N, Madrid 28933, Spain - Author
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Abstract

The aim of this work was to improve the thermal conductivity and electromagnetic shielding of the leakage proof phase change materials (PCMs), in which a polyrotaxane (PLR) was used as a support material to encapsulate PEG 1k or PEG 6k and MXene as multi-functional filler. The PCMs can be processed conveniently by a hot press and the PEG 1k containing samples showed excellent flexibility. We conducted a systematic evaluation of the phase transition behavior of the material, thermal conductivity and electromagnetic shielding performance tests. Notably, the PCMs achieved a high enthalpy values (123.9-159.6 J/g). The PCMs exhibited an increase of 44.3%, and 137.5 % in thermal conductivity values with higher MXene content (5 wt%) for PLR-PEG6k and PLR-PEG1k, respectively, and show high shape stability and no leakage during and after phase transition. The introduction of MXene can significantly improve the electromagnetic shielding performance of PCM composites. Typically, higher conductive samples (samples which contain high MXene contents) offer a higher EMI SE shielding, reaching a maximum of 4.67 dB at 5.6 GHz for PLR-1K-MX5. These improvements solve the main problems of organic PEG based PCMs, thus making PLR-PEG-MXene based PCMs good candidates for thermoregulators of both solid-state disks and smart phone. It is worth pointing out that the sample PLR-1k-MX5 can decrease 4.3 degrees C of the reference temperature during cellphone running. Moreover, the temperature of the protecting sheet in the simulated solid state disk with PCM was significantly lower (showing a decreasing of 7.9 degrees C) compared with the blank sample.

Keywords

CompositeElectromagnetic shieldingElectronics devicesFunctional fillersMulti-functionalMulti-functionalizationMxeneNanocompositeNanocompositesPhase change materialsPhase-change materialsPolyethylene-glycolPolyrotaxanePolyrotaxanesShielding performanceSmartphonesSolid state disksSupport materialsThermal conductivityThermal regulation

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Nano Materials Science due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2024 there are still no calculated indicators, but in 2023, it was in position 17/141, thus managing to position itself as a Q1 (Primer Cuartil), in the category Nanoscience & Nanotechnology.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2025-06-27:

  • WoS: 7
  • Scopus: 16

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-06-27:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 16.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 16 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 0.5.
  • The number of mentions on the social network X (formerly Twitter): 1 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Additionally, the work has been submitted to a journal classified as Diamond in relation to this type of editorial policy.