Aging Characteristics of ZSM-5 Zeolite on Low-Frequency Acoustic Applications
Zeolite is increasingly recognized for its enhancement of low-frequency acoustic performance in microspeakers. The aging characteristics of zeolite have been regarded as the critical factor for the commercial viability of mobile phones products, but the mechanism remains ambiguous. Here, the low-fre...
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| Language: | English |
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MDPI AG
2025-04-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/15/9/639 |
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| author | Mingbo Guo Yijun Wang Lei Zhang Junran Lu Chang Gong Wanning Zhang Yuxi Fang Xinyuan Zhu Shunai Che |
| author_facet | Mingbo Guo Yijun Wang Lei Zhang Junran Lu Chang Gong Wanning Zhang Yuxi Fang Xinyuan Zhu Shunai Che |
| author_sort | Mingbo Guo |
| collection | DOAJ |
| description | Zeolite is increasingly recognized for its enhancement of low-frequency acoustic performance in microspeakers. The aging characteristics of zeolite have been regarded as the critical factor for the commercial viability of mobile phones products, but the mechanism remains ambiguous. Here, the low-frequency acoustic performance of hierarchically structured ZSM-5 was investigated through aging with water and acetic acid (AA). It was discovered that water vapor augmented the resonance offset as it enhanced the structure of the zeolite, resulting in a lower water content. The resonance offset of ZSM-5 significantly decreased after the adsorption of AA vapor, as excessive AA was adsorbed through both physical and chemical adsorption, causing partial destruction of supermicropore and mesopores. The performance of ZMS-5 stored with vapor of AA and water mixture did not significantly deteriorate, indicating that water effectively protected the pores of zeolite to prevent excessive adsorption of AA. This was attributed to the fact that water was adsorbed by Brønsted acid sites of ZSM-5 more preferentially than AA, thereby avoiding excessive adsorption of AA. |
| format | Article |
| id | doaj-art-57abced25da24c3bbaad7c9c4d081bb1 |
| institution | OA Journals |
| issn | 2079-4991 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj-art-57abced25da24c3bbaad7c9c4d081bb12025-08-20T02:24:55ZengMDPI AGNanomaterials2079-49912025-04-0115963910.3390/nano15090639Aging Characteristics of ZSM-5 Zeolite on Low-Frequency Acoustic ApplicationsMingbo Guo0Yijun Wang1Lei Zhang2Junran Lu3Chang Gong4Wanning Zhang5Yuxi Fang6Xinyuan Zhu7Shunai Che8State Key Laboratory of Synergistic Chem-Bio Synthesis, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, Shanghai 200240, ChinaSSI New Material (Zhenjiang) Co., Ltd., 7 Songlin Mountain Road, Zhenjiang 212006, ChinaSSI New Material (Zhenjiang) Co., Ltd., 7 Songlin Mountain Road, Zhenjiang 212006, ChinaSSI New Material (Zhenjiang) Co., Ltd., 7 Songlin Mountain Road, Zhenjiang 212006, ChinaSSI New Material (Zhenjiang) Co., Ltd., 7 Songlin Mountain Road, Zhenjiang 212006, ChinaState Key Laboratory of Synergistic Chem-Bio Synthesis, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, Shanghai 200240, ChinaState Key Laboratory of Synergistic Chem-Bio Synthesis, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, Shanghai 200240, ChinaState Key Laboratory of Synergistic Chem-Bio Synthesis, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, Shanghai 200240, ChinaState Key Laboratory of Synergistic Chem-Bio Synthesis, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, Shanghai 200240, ChinaZeolite is increasingly recognized for its enhancement of low-frequency acoustic performance in microspeakers. The aging characteristics of zeolite have been regarded as the critical factor for the commercial viability of mobile phones products, but the mechanism remains ambiguous. Here, the low-frequency acoustic performance of hierarchically structured ZSM-5 was investigated through aging with water and acetic acid (AA). It was discovered that water vapor augmented the resonance offset as it enhanced the structure of the zeolite, resulting in a lower water content. The resonance offset of ZSM-5 significantly decreased after the adsorption of AA vapor, as excessive AA was adsorbed through both physical and chemical adsorption, causing partial destruction of supermicropore and mesopores. The performance of ZMS-5 stored with vapor of AA and water mixture did not significantly deteriorate, indicating that water effectively protected the pores of zeolite to prevent excessive adsorption of AA. This was attributed to the fact that water was adsorbed by Brønsted acid sites of ZSM-5 more preferentially than AA, thereby avoiding excessive adsorption of AA.https://www.mdpi.com/2079-4991/15/9/639ZSM-5acoustic enhancement materialsresonance frequencymicrospeakeraging |
| spellingShingle | Mingbo Guo Yijun Wang Lei Zhang Junran Lu Chang Gong Wanning Zhang Yuxi Fang Xinyuan Zhu Shunai Che Aging Characteristics of ZSM-5 Zeolite on Low-Frequency Acoustic Applications Nanomaterials ZSM-5 acoustic enhancement materials resonance frequency microspeaker aging |
| title | Aging Characteristics of ZSM-5 Zeolite on Low-Frequency Acoustic Applications |
| title_full | Aging Characteristics of ZSM-5 Zeolite on Low-Frequency Acoustic Applications |
| title_fullStr | Aging Characteristics of ZSM-5 Zeolite on Low-Frequency Acoustic Applications |
| title_full_unstemmed | Aging Characteristics of ZSM-5 Zeolite on Low-Frequency Acoustic Applications |
| title_short | Aging Characteristics of ZSM-5 Zeolite on Low-Frequency Acoustic Applications |
| title_sort | aging characteristics of zsm 5 zeolite on low frequency acoustic applications |
| topic | ZSM-5 acoustic enhancement materials resonance frequency microspeaker aging |
| url | https://www.mdpi.com/2079-4991/15/9/639 |
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