A new microwave-assisted synthesis route to produce doped ZnO nanocrystals in non-polar media for the design of IR emissivity modulation devices

IF 13.2 1区 工程技术 Q1 ENGINEERING, CHEMICAL Chemical Engineering Journal Pub Date : 2025-02-28 DOI:10.1016/j.cej.2025.160966
Alexandre Da Silva, Guillaume Maurin-Pasturel, Stephen Legall, Cédric Vancaeyzeele, Frédéric Vidal, Laurent Dupont, Pierre-Henri Aubert
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Abstract

This study describes the microwave solvothermal synthesis (MSS) of aluminum-doped ZnO nanocrystals (NCs) in a non-polar solvent, namely a hydrocarbon solvent. These NCs are compared with those obtained by the conventional solvothermal method. Both methods resulted in NCs with similar morphologies and IR absorption properties. However, the MSS method produced larger particles than the conventional one. These NCs were utilized to formulate an electrophoretic ink, then embedded in an electrophoretic display unit. Such a device is capable of modulating its emissivity and its apparent temperature observed by a long wave infrared (LWIR) camera. When the electrophoretic device was switched between its reflective and emissive states, the difference in apparent temperatures reached 4.2 °C, corresponding to an emissivity variation of 8.4 % in the LWIR.
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一种在非极性介质中制备掺杂ZnO纳米晶体的微波辅助合成新途径,用于红外发射率调制器件的设计
本研究描述了在非极性溶剂,即烃类溶剂中,微波溶剂热合成掺铝ZnO纳米晶体(NCs)的方法。并与传统溶剂热法得到的nc值进行了比较。两种方法制备的纳米碳具有相似的形貌和红外吸收特性。然而,MSS方法产生的颗粒比传统方法大。这些nc被用来配制电泳墨水,然后嵌入电泳显示单元。这种装置能够调制其发射率及其由长波红外(LWIR)相机观测到的表观温度。当电泳装置在反射和发射状态之间切换时,表观温度的差异达到4.2 °C,对应于LWIR中的发射率变化8.4 %。
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来源期刊
Chemical Engineering Journal
Chemical Engineering Journal 工程技术-工程:化工
CiteScore
21.70
自引率
9.30%
发文量
6781
审稿时长
2.4 months
期刊介绍: The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.
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