Advancing Humidity‐Resistant Triboelectric Nanogenerators Through MoS₂‐Encapsulated SiO₂ Nanoparticles for Self‐Powered Gas Sensing Applications

IF 24.4 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Advanced Energy Materials Pub Date : 2025-01-24 DOI:10.1002/aenm.202405278

Do‐Heon Kim, Ji Young Park, Han Sol Choi, Jeonghoon Cho, Hyun Soo Kim, Jeong Eun Mo, Jin‐Kyeom Kim, Tae Kyoung Yoon, Sung Hun Hur, Jae Joon Kim, Hye Sung Park, Hyun Cheol Song, Jeong Min Baik

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Abstract

In this study, the humidity‐resistant triboelectric nanogenerators (TENGs) utilizing MoS₂‐encapsulated SiO₂ nanoparticles (NPs), aimed at enhancing self‐powered gas sensing applications, are reported. The core‐shell structure, featuring a thin MoS₂ layer uniformly grown on SiO₂, addresses common humidity‐induced performance degradation. The growth mechanism involves the decomposition and sulfidation of molybdenum species, with MoS₂ selectively nucleating on SiO₂ to form a stable, hydrophobic shell. This MoS₂ layer effectively shields the SiO₂ interface from water molecule penetration, thus stabilizing charge density and significantly reducing charge decay, even under high humidity conditions. TENGs constructed with these core‐shell NPs exhibit high triboelectric charge density and exceptional durability, retaining more than 70% output over 25 h at 99% relative humidity (RH). Furthermore, the fabricated TENG reliably powers a gas sensor array, enabling accurate gas detection in extreme humidity. This work demonstrates the potential of MoS₂‐encapsulated SiO₂ TENGs as robust, self‐powered energy solutions for environmental monitoring and wearable devices in challenging humidity conditions.

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来源期刊

Advanced Energy Materials CHEMISTRY, PHYSICAL-ENERGY & FUELS

CiteScore

41.90

自引率

4.00%

发文量

889

审稿时长

1.4 months

期刊介绍： Established in 2011, Advanced Energy Materials is an international, interdisciplinary, English-language journal that focuses on materials used in energy harvesting, conversion, and storage. It is regarded as a top-quality journal alongside Advanced Materials, Advanced Functional Materials, and Small. With a 2022 Impact Factor of 27.8, Advanced Energy Materials is considered a prime source for the best energy-related research. The journal covers a wide range of topics in energy-related research, including organic and inorganic photovoltaics, batteries and supercapacitors, fuel cells, hydrogen generation and storage, thermoelectrics, water splitting and photocatalysis, solar fuels and thermosolar power, magnetocalorics, and piezoelectronics. The readership of Advanced Energy Materials includes materials scientists, chemists, physicists, and engineers in both academia and industry. The journal is indexed in various databases and collections, such as Advanced Technologies & Aerospace Database, FIZ Karlsruhe, INSPEC (IET), Science Citation Index Expanded, Technology Collection, and Web of Science, among others.