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1. Exploring the impact of new particle formation events on PM2.5 pollution during winter in the Yangtze River Delta, China

Author:
Ou, Jinping; Hu, Qihou; Liu, Haoran; Xu, Shiqi; Wang, Zhuang; Ji, Xiangguang; Wang, Xinqi; Xie, Zhouqing; Kang, Hui
Source:
Journal of environmental sciences (China) 2022 v.111 pp. 75-83
ISSN:
1001-0742
Subject:
relative humidity,   etc   ; air quality; climate; oxidation; ozone; particulates; pollution; river deltas; winter; China; Yangtze River;     Show all 11 Subjects
Abstract:
... New particle formation (NPF) events are an increasingly interesting topic in air quality and climate science. In this study, the particle number size distributions, and the frequency of NPF events over Hefei were investigated from November 2018 to February 2019. The proportions of the nucleation mode, Aitken mode, and accumulation mode were 24.59%, 53.10%, and 22.30%, respectively, which indicates ...
DOI:
10.1016/j.jes.2021.01.005

2. Low-Cost Hole-Transporting Materials Based on Carbohelicene for High-Performance Perovskite Solar Cells

Author:
Lin, Yeo-Sin; Abate, Seid Yimer; Wang, Chun-I; Wen, Yuh-Sheng; Chen, Chih-I; Hsu, Chao-Ping; Chueh, Chu-Chen; Tao, Yu-Tai; Sun, Shih-Sheng
Source:
ACS applied materials & interfaces 2021 v.13 no.17 pp. 20051-20059
ISSN:
1944-8252
Subject:
relative humidity,   etc   ; commercialization; helicenes;     Show all 3 Subjects
Abstract:
... Two hole-transporting materials (HTMs) based on carbohelicene cores, CH1 and CH2, are developed and used in fabricating efficient and stable perovskite solar cells (PSCs). Owing to the rigid conformation of the helicene core, both compounds possess unique CH−π interactions in the crystalline packing pattern and good phase stability, which are distinct from the π–π intermolecular interactions of co ...
DOI:
10.1021/acsami.1c02004

3. Novel quaternary oxide semiconductor for the application of gas sensors with long-term stability

Author:
Wang, Chong; Zhang, Yiqun; Zhao, Lianjing; Wang, Chenguang; Liu, Fangmeng; Sun, Xiaoying; Hu, Xiaolong; Lu, Geyu
Source:
Journal of colloid and interface science 2021 v.592 pp. 186-194
ISSN:
0021-9797
Subject:
relative humidity,   etc   ; acetone; semiconductors; temperature;     Show all 4 Subjects
Abstract:
... In this paper, quaternary oxide semiconductor was applied as sensing material for the fabrication of gas sensors. One-step solvothermal method was utilized to synthesize the sensing material. Various characterization methods including XRD, XPS, SEM, HRTEM were employed to analyze the composition and structure of the sensing material. Composite composed of CuInW₂O₈ and CuWO₄ was successfully prepar ...
DOI:
10.1016/j.jcis.2021.02.047

4. Precisely Tunable Humidity Color Indicator Based on Photonic Polymer Films

Author:
Jung, Seo-Hyun; Lee, Hyun Tae; Park, Min Ji; Lim, Bogyu; Park, Byong Chon; Jung, Yu Jin; Kong, Hoyoul; Hwang, Do-Hoon; Lee, Hyung-il; Park, Jong Mok
Source:
Macromolecules 2021 v.54 no.2 pp. 621-628
ISSN:
1520-5835
Subject:
relative humidity,   etc   ; color; colorimetry; photons;     Show all 4 Subjects
Abstract:
... Photonic crystals (PCs) are attractive for utilization as label-free self-display colorimetric sensors. In this study, one-dimensional (1D) photonic humidity color indicators with color transitions across the whole visible spectral range are reported. For this, we synthesized photo-cross-linkable poly(2-vinylnaphthalene-co-benzophenone acrylate) (P(2VN-co-BPA)) as a high-refractive-index polymer a ...
DOI:
10.1021/acs.macromol.0c01911

5. Aspects of the development of Ixodes anatis under different environmental conditions in the laboratory and in the field

Author:
Bansal, Natasha; Pomroy, William E.; Heath, Allen C. G.; Castro, Isabel
Source:
Parasites & vectors 2021 v.14 no.1 pp. 85
ISSN:
1756-3305
Subject:
relative humidity,   etc   ; Apteryx; Ixodes; molting; temperature; ticks;     Show all 6 Subjects
Abstract:
... BACKGROUND: Numerous laboratory and fewer field-based studies have found that ixodid ticks develop more quickly and survive better at temperatures between 18 °C and 26 °C and relative humidity (RH) between 75 and 94%. Ixodes anatis Chilton, 1904, is an endophilic, nidicolous species endemic to North Island brown kiwi (Apteryx mantelli) (NIBK) and the tokoeka (Apteryx australis), and little is know ...
DOI:
10.1186/s13071-021-04601-z

6. Enhanced ammonia sensing performance based on MXene-Ti3C2Tx multilayer nanoflakes functionalized by tungsten trioxide nanoparticles

Author:
Guo, Xuezheng; Ding, Yanqiao; Kuang, Delin; Wu, Zhilin; Sun, Xia; Du, Bingsheng; Liang, Chengyao; Wu, Yingjie; Qu, Weijie; Xiong, Lian; He, Yong
Source:
Journal of colloid and interface science 2021 v.595 pp. 6-14
ISSN:
0021-9797
Subject:
relative humidity,   etc   ; ambient temperature; ammonia; tungsten oxide;     Show all 4 Subjects
Abstract:
... Low-power consumption and high sensitivity are highly desirable for a vast range of NH₃ sensing applications. As a new type of two-dimension (2D) material, Ti₃C₂Tₓ is extensively studied for room temperature NH₃ sensors recently. However, the Ti₃C₂Tₓ MXene based gas sensors suffer mainly from low sensitivity. Herein, we report a sensitive Ti₃C₂Tₓ/WO₃ composite resistive sensor for NH₃ detection. T ...
DOI:
10.1016/j.jcis.2021.03.115

7. Impact of hydration on the mechanical properties and damage mechanisms of natural silk fibre reinforced composites

Author:
Tian, Wenhan; Yang, Kang; Wu, Sujun; Yang, Jiping; Luo, Hongyun; Guan, Juan; Ritchie, Robert O.
Source:
Composites 2021 v.147 pp. 106458
ISSN:
1359-835X
Subject:
relative humidity,   etc   ; acoustics; biocompatibility; biodegradability; silk;     Show all 5 Subjects
Abstract:
... Silk fibres exhibit good biodegradability, biocompatibility and balanced strength and toughness, which are useful for toughness/impact-critical composites in the biomedical field. However, the impact of hydration has not been studied for silk fibre-reinforced polymers (SFRPs). In this work, SFRPs fabricated vacuum-assisted resin infusion (VARI) were treated under three hydration conditions. A hydr ...
DOI:
10.1016/j.compositesa.2021.106458

8. The effect of thickness on the performance of (K1/4Ta3/4)xSn1-xO2-based humidity sensor

Author:
Xie, X. J.; Si, R. J.; Zheng, J.; Wang, C. C.
Source:
Journal of materials science 2021 v.56 no.16 pp. 9780-9790
ISSN:
0022-2461
Subject:
relative humidity,   etc   ; crystallites; oxygen; surface area;     Show all 4 Subjects
Abstract:
... In this paper, (K₁/₄Ta₃/₄)ₓSn₁₋ₓO₂ (KTSO, with x = 0, 0.01, 0.02, and 0.05) powders were prepared by solid-state reaction method and used as materials for humidity sensing. The method of saturated salt solution is used to study the sensing performances of the KTSO sensors in the relative humidity (RH) range of 12%–94%. The results show that the sensor based on x = 0.05 sample with the thickness is ...
DOI:
10.1007/s10853-021-05864-8

9. Reversing the Humidity Response of MoS₂- and WS₂-Based Sensors Using Transition-Metal Salts

Author:
Xiao, Peng; Mencarelli, Davide; Chavez-Angel, Emigdio; Joseph, Christopher Hardly; Cataldo, Antonino; Pierantoni, Luca; Sotomayor Torres, Clivia M.; Sledzinska, Marianna
Source:
ACS applied materials & interfaces 2021 v.13 no.19 pp. 23201-23209
ISSN:
1944-8252
Subject:
relative humidity,   etc   ; chlorides; models; silver nitrate;     Show all 4 Subjects
Abstract:
... Two-dimensional materials, such as transition-metal dichalcogenides (TMDs), are attractive candidates for sensing applications due to their high surface-to-volume ratio, chemically active edges, and good electrical properties. However, their electrical response to humidity is still under debate and experimental reports remain inconclusive. For instance, in different studies, the impedance of MoS₂- ...
DOI:
10.1021/acsami.1c03691

10. Ionic Liquid-Assisted MAPbI₃ Nanoparticle-Seeded Growth for Efficient and Stable Perovskite Solar Cells

Author:
Shahiduzzaman, Md.; Wang, LiangLe; Fukaya, Shoko; Muslih, Ersan Y.; Kogo, Atsushi; Nakano, Masahiro; Karakawa, Makoto; Takahashi, Kohshin; Tomita, Koji; Nunzi, Jean-Michel; Miyasaka, Tsutomu; Taima, Tetsuya
Source:
ACS applied materials & interfaces 2021 v.13 no.18 pp. 21194-21206
ISSN:
1944-8252
Subject:
relative humidity,   etc   ; commercialization; ionic liquids; lighting;     Show all 4 Subjects
Abstract:
... With the rapid improvement of perovskite solar cells (PSCs), long-life operational stability has become a major requirement for their commercialization. In this work, we devised a pristine cesium–formamidinium–methylammonium (termed as CsFAMA) triple-cation-based perovskite precursor solution into the ionic liquid (IL)-assisted MAPbI₃ nanoparticles (NPs) through a seeded growth approach in which t ...
DOI:
10.1021/acsami.1c00677

11. Ultrahigh Proton Conduction via Extended Hydrogen-Bonding Network in a Preyssler-Type Polyoxometalate-Based Framework Functionalized with a Lanthanide Ion

Author:
Iwano, Tsukasa; Shitamatsu, Kota; Ogiwara, Naoki; Okuno, Masanari; Kikukawa, Yuji; Ikemoto, Satoru; Shirai, Sora; Muratsugu, Satoshi; Waddell, Paul G.; Errington, R. John; Sadakane, Masahiro; Uchida, Sayaka
Source:
ACS applied materials & interfaces 2021 v.13 no.16 pp. 19138-19147
ISSN:
1944-8252
Subject:
relative humidity,   etc   ; hybridization; hydrogen bonding; protonation;     Show all 4 Subjects
Abstract:
... The exploration of composition–structure–function relationship in proton-conducting solids remains a challenge in materials chemistry. Polyoxometalate-based compounds have been long considered as candidates for proton conductors; however, their low structural stability and a large decrease in conductivity under reduced relative humidity (RH) have limited their applications. To overcome such limita ...
DOI:
10.1021/acsami.1c01752

12. Efficient and Stable Carbon-Based Perovskite Solar Cells via Passivation by a Multifunctional Hydrophobic Molecule with Bidentate Anchors

Author:
Xu, Tingting; Zou, Kai; Lv, Shaoshen; Tang, Hebing; Zhang, Yingxiang; Chen, Yonghua; Chen, Lixin; Li, Zhen; Huang, Wei
Source:
ACS applied materials & interfaces 2021 v.13 no.14 pp. 16485-16497
ISSN:
1944-8252
Subject:
relative humidity,   etc   ; ambient temperature; hydrophobicity; nitrogen; pyridines;     Show all 5 Subjects
Abstract:
... Surface passivation has demonstrated to be an effective strategy to improve the power conversion efficiency (PCE) and long-term stability of perovskite solar cells (PSCs). Passivation treatment can effectively reduce the density of defect states at the surface and grain boundaries of perovskite films. Herein, a passivation agent of 2-amino-5-(trifluoromethyl)pyridine (5-TFMAP) with bidentate group ...
DOI:
10.1021/acsami.1c02218

13. Phase Transformation Dynamics in Sulfate-Loaded Lanthanide Triphosphonates. Proton Conductivity and Application as Fillers in PEMFCs

Author:
Salcedo, Inés R.; Colodrero, Rosario M. P.; Bazaga-García, Montse; López-González, M.; del Río, Carmen; Xanthopoulos, Konstantinos; Demadis, Konstantinos D.; Hix, Gary B.; Furasova, Aleksandra D.; Choquesillo-Lazarte, Duane; Olivera-Pastor, Pascual; Cabeza, Aurelio
Source:
ACS applied materials & interfaces 2021 v.13 no.13 pp. 15279-15291
ISSN:
1944-8252
Subject:
relative humidity,   etc   ; lanthanides; phase transition; photoluminescence; sulfates;     Show all 5 Subjects
Abstract:
... Phase transformation dynamics and proton conduction properties are reported for cationic layer-featured coordination polymers derived from the combination of lanthanide ions (Ln³⁺) with nitrilo-tris(methylenephosphonic acid) (H₆NMP) in the presence of sulfate ions. Two families of materials are isolated and structurally characterized, i.e., [Ln₂(H₄NMP)₂(H₂O)₄](HSO₄)₂·nH₂O (Ln = Pr, Nd, Sm, Eu, Gd, ...
DOI:
10.1021/acsami.1c01441

14. Surface Defect Passivation and Energy Level Alignment Engineering with a Fluorine-Substituted Hole Transport Material for Efficient Perovskite Solar Cells

Author:
Tao, Li; Wang, Biyi; Wang, Haoxin; Chen, Cheng; Ding, Xingdong; Tian, Yi; Lu, Hongfei; Yang, Xichuan; Cheng, Ming
Source:
ACS applied materials & interfaces 2021 v.13 no.11 pp. 13470-13477
ISSN:
1944-8252
Subject:
relative humidity,   etc   ; X-ray photoelectron spectroscopy; energy;     Show all 3 Subjects
Abstract:
... The surface and boundary defects present in the perovskite film are reported to be nonradiative recombination and degradation centers, restricting further improvement of the power conversion efficiency (PCE) and long-term stability of perovskite solar cells. To address this problem, herein, we introduce a fluorine-substituted small molecular material 2FBTA-1 as a bifunctional buffer layer to effic ...
DOI:
10.1021/acsami.0c21975

15. Proton Conduction of Nafion Hybrid Membranes Promoted by NH₃-Modified Zn-MOF with Host–Guest Collaborative Hydrogen Bonds for H₂/O₂ Fuel Cell Applications

Author:
Wang, Hongfei; Zhao, Yujie; Shao, Zhichao; Xu, Wenjuan; Wu, Qiong; Ding, Xiaolin; Hou, Hongwei
Source:
ACS applied materials & interfaces 2021 v.13 no.6 pp. 7485-7497
ISSN:
1944-8252
Subject:
relative humidity,   etc   ; electrochemistry; fuel cells; hydrogen;     Show all 4 Subjects
Abstract:
... It is of great significance to develop creative proton exchange membrane materials for proton exchange membrane fuel cells (PEMFCs). The strategy of doping metal–organic frameworks (MOFs) with guest molecules into the Nafion matrix is adopted to improve the electrochemical performance of Nafion hybrid membranes. Various and abundant hydrogen bonds can make a tremendous contribution to the proton c ...
DOI:
10.1021/acsami.0c21840

16. Conjugated copolymers as doping- and annealing-free hole transport materials for highly stable and efficient p–i–n perovskite solar cells

Author:
Ma, Hui; Yuan, Ligang; Chen, Qiaoyun; Fu, Jianfei; Zhang, Jiajia; Jiang, Zhixuan; Dong, Bin; Zhou, Yi; Yin, Shouchun; Song, Bo
Source:
Journal of materials chemistry A 2021 v.9 no.4 pp. 2269-2275
ISSN:
2050-7496
Subject:
relative humidity,   etc   ; air; composite polymers; heat;     Show all 4 Subjects
Abstract:
... Significant advances in organic–inorganic halide perovskite solar cells (Pero-SCs) have been achieved in recent times. In high performance Pero-SCs, poly(bis(4-phenyl)(2,4,6-trimethylphenyl)amine) (PTAA) is an effective polymer hole transport layer (HTL), but the requisite dopants and thermal annealing may limit its application in terms of the cost and stability of the resulting devices. Therefore ...
DOI:
10.1039/d0ta09545a

17. Subsecond measurement on deliquescence kinetics of aerosol particles: Observation of partial dissolution and calculation of dissolution rates

Author:
Ma, Shuaishuai; Yang, Miao; Pang, Shufeng; Zhang, Yunhong
Source:
Chemosphere 2021 v.264 pp. 128507
ISSN:
0045-6535
Subject:
relative humidity,   etc   ; aerosols; climate; crystallization; data collection;     Show all 5 Subjects
Abstract:
... The deliquescence behavior of atmospheric aerosols has significant effects on global climate and atmospheric heterogeneous chemistry but remains largely unclear. The deliquescence kinetics data of micron-sized particles are scarce owing to the difficulty on performing the time-resolved dissolution measurements. In view of this technique bottleneck, an applicable and powerful experimental technique ...
DOI:
10.1016/j.chemosphere.2020.128507

18. An Al-assisted GO/rGO Janus film: Fabrication and hygroscopic properties

Author:
Lee, Seul-Yi; Moore, Robert B.; Mahajan, Roop L.
Source:
Carbon 2021 v.171 pp. 585-596
ISSN:
0008-6223
Subject:
relative humidity,   etc   ; carbon; deformation; hydrophilicity; hydrophobicity; oxygen;     Show all 6 Subjects
Abstract:
... In this paper, we present a novel method combining drop-casting GO dispersion with an Al-assisted partial reduction technique to fabricate a freestanding Janus GO/rGO film. The laminar structure of Janus film facilitates the diffusion pathway of water molecules efficiently. The asymmetrical oxygen content of the film promotes a significant gradient of moisture uptake in GO (hydrophilic) and rGO (h ...
DOI:
10.1016/j.carbon.2020.09.002

19. An integrated wearable strain, temperature and humidity sensor for multifunctional monitoring

Author:
Bi, Siyi; Hou, Lei; Lu, Yinxiang
Source:
Composites 2021 v.149 pp. 106504
ISSN:
1359-835X
Subject:
relative humidity,   etc   ; cost effectiveness; dopamine; electronics; fabrics; flax; nickel; temperature;     Show all 8 Subjects
Abstract:
... Explosive growth in demand for wearable devices has promoted the development of smart materials with multifunctional performances. Flexible flax fabric (FF) coated with CNT and nickel serving as multifunctional sensor are prepared through a cost-effective dip-coating and electroless deposition technology. Biocompatible dopamine film self-polymerized on CNT surface effectively enhances the interfac ...
DOI:
10.1016/j.compositesa.2021.106504

20. Preparation of poly(ε-caprolactone) based composites through multistage biaxial-stretching extrusion with excellent oxygen and water vapor barrier performance

Author:
Ding, Yitong; Han, Aichun; Zhou, Hongxun; Zhou, Qian; Song, Hangling; Chen, Rong; Guo, Shaoyun
Source:
Composites 2021 v.149 pp. 106494
ISSN:
1359-835X
Subject:
relative humidity,   etc   ; biodegradability; extrusion; hydrophobicity; medicine; oxygen; permeability; water vapor;     Show all 8 Subjects
Abstract:
... In this paper, the poly(ε-caprolactone)/glycerol tristearate (PCL/C18) composites were prepared through multistage biaxial-stretching extrusion, and the hydrophobic C18 was transformed significantly from small spheres into sheet-like structures. The hydrophobicity of the material was enhanced, and the diffusion path for the penetration of the small molecules was significantly increased, resulting ...
DOI:
10.1016/j.compositesa.2021.106494