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13. Nonaqueous Synthesis of Pd/PdO-Functionalized NiFe 2 O 4 Nanoparticles Enabled Enhancing n-Butanol Detection.

Author

Wu, Hongyang and Chen, Chen

Subjects
*BENZYL alcohol, *GAS detectors, *CATALYSIS, *VOLATILE organic compounds, *PALLADIUM oxides
Abstract

The efficient detection of n-butanol, which is in demand for highly sensitive materials, is essential for multiple applications. A nonaqueous method was applied to prepare NiFe2O4 nanoparticles (NPs) using benzyl alcohol as a solvent, which shows a size of 7.9 ± 1.6 nm and a large surface area of 82.23 m2/g. To further improve the sensing performance for n-butanol, Pd/PdO functionalization was sensitized with NiFe2O4 NPs. Gas sensing results demonstrate that the Pd/PdO-NiFe2O4 exhibits an enhanced response of 36.9 to 300 ppm n-butanol and a fast response and recovery time (18.2/17.6 s) at 260 °C. Furthermore, the Pd/PdO-NiFe2O4-based sensor possesses a good linear relationship between responses and the n-butanol concentration from 1 to 1000 ppm, and great selectivity against other volatile organic compounds (VOCs). The excellent sensing enhancement is attributed to the catalytic effects of Pd/PdO, the increase of oxygen vacancies, and the formation of heterojunction between PdO and NiFe2O4. Thus, this study offers an effective route for the synthesis of Pd/PdO-functionalized NiFe2O4 NPs to achieve n-butanol detection with excellent sensing performance. [ABSTRACT FROM AUTHOR]

Published
2024
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14. Adsorption Behavior of Cu(II) to Silica-Humics Composite Aerogels

Author

Han, Guihong, Tang, Pengfei, Wu, Hongyang, Ma, Jun, Yang, Xiaomeng, Zhang, Yongsheng, Li, Bowen, editor, Li, Jian, editor, Ikhmayies, Shadia, editor, Zhang, Mingming, editor, Kalay, Yunus Eren, editor, Carpenter, John S., editor, Hwang, Jiann-Yang, editor, Monteiro, Sergio Neves, editor, Bai, Chenguang, editor, Escobedo-Diaz, Juan P., editor, Spena, Pasquale Russo, editor, and Goswami, Ramasis, editor

Published
2019
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26. Effect of MoS2on microstructure and mechanical property of ultrasonically welded carbon fiber/polyamide 66

Author

Tan, Xinrong, Zhi, Qian, Li, Yongbing, Chen, Yuhua, Hu, Yuhang, Chen, Yuqiang, Shi, Xinhua, and Wu, Hongyang

Abstract

Porous defect induced by thermal decomposition is one of the most significant factors in determining the weld quality of ultrasonically welded thermoplastics. MoS2has high thermal stability and a two-dimensional layer structure, which could play a key role in improving the thermal stability of the thermoplastics. In this study, MoS2with 0.5 wt%, 1.0 wt%, 1.5 wt%, and 2.0 wt% loadings are incorporated into carbon fiber/polyamide 66 composite (CF/PA 66), and its effect on microstructure and mechanical properties of the joint is evaluated with the combination of finite element analysis. Results showed the incorporation of MoS2slightly influenced tensile property of the composite while had a considerable effect on joint performance. With 1.5 wt% loading of MoS2, the highest peak load was enhanced to 6.20 kN from 5.05 kN and the difference in peak load became limited. This is mainly because the temperature of the workpiece under the horn rose above the thermal decomposition point of the composite during ultrasonic welding (UW). However, MoS2filler improved the thermal stability of the workpiece and alleviated the thermal decomposition of PA 66 during UW. As a result, the workpiece with MoS2addition can endure longer weld time to increase the weld area of the joint and improve the weld microstructure and porous defect, which results in higher peak load and stability. This work provides a new solution for improving the joint strength of ultrasonically welded thermoplastics.

Published
2024
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36. Additional file 2 of Optimized synthesis of layered double hydroxide lactate nanosheets and their biological effects on Arabidopsis seedlings

Author

Wu, Hongyang, Zhang, He, Li, Xinyu, Zhang, Yu, Wang, Jiankun, Wang, Qiang, and Wan, Yinglang

Abstract

Additional file 2: Table S1. Specific primers of genes. Table S2. Particle-size distribution of LDH-lactate-NS obtained at 0 ���, 15 ���, 25 ���. Table S3. Germination rate of Arabidopsis seeds.

Published
2022
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37. Additional file 1 of Optimized synthesis of layered double hydroxide lactate nanosheets and their biological effects on Arabidopsis seedlings

Author

Wu, Hongyang, Zhang, He, Li, Xinyu, Zhang, Yu, Wang, Jiankun, Wang, Qiang, and Wan, Yinglang

Abstract

Additional file 1: Figure S1. DR5pro:GFP observation and determination of IAA content in the root. (A) DR5pro:GFP fluorescence observed by confocal microscopy; (B) Relative abundance of auxin content. Values are means �� SD (n = 3). CK, Control check. ns > 0.05, **P < 0.01, *P < 0.05, Student���s t-test. Figure S2. Effect of various concentrations of LDH-Lactate-NS on root geotropism of A. thaliana. (A) After rotation of 90��, the root tip bending Angle after 3 hours (a)CK; (b)LDH=1 ��g/ml; (c)LDH=10 ��g/ml; (d)LDH=100 ��g/ml; (e)LDH=300 ��g/ml; (B) Geotropism experiment statistics of root tip bending angles of CK and LDH. Error bars represent SD. Ns > 0.05, *P

Published
2022
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