JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2021
·
IF 8.128
Haifeng Fan,Zhiguang Guo
Inspired by Nepenthes pitcher plants, slippery liquid-infused porous surfaces (SLIPSs) have attracted wide attention and exhibited remarkable liquid repellency, droplet motion control and antifouling properties. However, lubricant-impregnated surfaces have poor durability, leading to loss of control of the movements of droplets during applications. Herein, WO 3 -based slippery coatings with high stability were prepared by the spray method and photocatalytic reaction. Notably, on the basis of the hierarchical structures, the strong intermolecular forces between the polydimethylsiloxane brush and silicone oil led to the formation of a stable lubricant layer on the WO 3 -based slippery coating, which can suppress lubricant loss during water collection. After a series of stability tests, such as high-speed centrifugation, long-term storage, acidic solution and multiple heating/cooling cycles, the biomimetic slippery surface still displays excellent surface-slippery stability. Furthermore, the slippery surface exhibits superior water mist capture, water droplet expansion and harvested water removal abilities, leading to good water collection performance. The silicone oil content in the collected water was 28 mg/L, demonstrating that the loss of oil was lower during the water collection process. Even under harsh environments, including multiple heating/cooling cycles, long-term storage and high shear force, lubricant-impregnated coatings can also maintain good water collection efficiency. Therefore, these slippery coatings are promising for widespread application.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
PubMed
高影响因子
Micromachines
·
2024
·Vol. 15
·期 12
·1486
·
IF 3
Yuqi Wang,Yong Liu,Minmin Wang,Wenjun Wu,Maofei Tian,Tao Zhu
This study introduces the development of a W-M1.0electrochromic film, characterized by a “coral”-like TiO2@WO3heterostructure, synthesized via a hydrothermal process leveraging the inherent instability of MXene. The film showcases exceptional electrochromic performance, with a coloring response time of 2.8 s, a bleaching response time of 4.6 s, and a high coloring efficiency of 137.02 cm2C−1. It also demonstrates a superior light modulation ability of 73.83% at 1033 nm. Notably, the W-M1.0film exhibits remarkable cyclic stability, retaining over 90% of its initial light modulation capacity after 4000 cycles, outperforming many existing electrochromic materials. The film’s enhanced performance is credited to its coral-like structure, which boosts the specific surface area and promotes ion transport, and the TiO2@WO3heterojunctions, which enhance charge transfer and stabilize the material. Devices fabricated with the W-M1.0film as the cathode and a PB film as the anode exhibit a seamless transition from dark blue to colorless, underscoring their potential for smart window and dynamic glass applications.
研究领域:
材料科学
·
纳米技术
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
·
2021
·Vol. 38
·期 4
·985-990
·
IF 1.307
Shi Rui,Wei Shuxian,Cheng Shiqi,Zeng Jinmin,Wang Yilin,Shu Xin
In the present work, WO 3 nanosheets(WO 3 NSs) were prepared by a facile method at room temperature. The obtained WO 3 NSs showed peroxidase-like activity, which could catalyze 3,3’,5,5’-tetramethylbenzidine(TMB) to form a blue oxidation product(ox TMB) in the presence of H 2 O 2 . Based on this, convenient and sensitive colorimetric methods for the detection of H 2 O 2 and glucose were established. The linear ranges for detecting H 2 O 2 and glucose were 1–200 µmol/L and 1–100 µmol/L, respectively. The limits of the detection of H 2 O 2 and glucose were as low as 0.79 and 0.96 µmol/L, respectively. This method was also successfully applied to the detection of glucose in urine samples. The detection result was consistent with that of the value detected by the clinical method, indicating the potential in clinical diagnosis and biomedical detection.
研究领域:
生物化学
·
医学诊断
·
纳米材料科学
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Xiaoyu Lu,Congling Li,Li Zhang,Wei Xia,Rui Liu,Aifeng Lv
The rational design of efficient, cost-effective, and durable electrocatalysts is crucial for the realization of hydrogen production through water splitting. The present study describes the synthesis of a novel three-dimensional (3D) volcano-like Fe 3 S 4 /Ni 3 S 2 /WO 3 /NiFe LDH/NF (Layered Double Hydroxides/Nickel Foam) electrocatalyst with a highly wrinkled structure through a two-step hydrothermal method. The as-synthesized electrocatalyst exhibits an exceptionally low overpotential of 77 mV for the hydrogen evolution reaction (HER) and 131 mV for the oxygen evolution reaction (OER) at a current density of 10 mA cm −2 , owing to the unique morphology and strong electronic interactions between Fe 3 S 4 , Ni 3 S 2 and WO 3 heterostructures. The Fe 3 S 4 /Ni 3 S 2 /WO 3 /NiFe LDH/NF electrocatalyst demonstrates exceptional performance in overall water splitting when employed as both anode and cathode, achieving a current density of 10 mA cm −2 at an impressively low cell voltage of 1.5 V as well as exhibiting remarkable durability with little degradation over a period of 12 hours. This study presents a straightforward approach for the synthesis of highly efficient and durable non-noble metal catalysts for overall water splitting under hydrothermal conditions.
研究领域:
材料科学
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电化学
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能源转换
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Ya-Nan Wang,Yaxin Guo,Jinsong Peng,Jianwei Zhao,Lei Yang,Haiyan Song,Chunxia Chen
s Photocatalytic H 2 O 2 production represents a sustainable and promising avenue for energy and environment. Photoproduction of H 2 O 2 in seawater is potentially an alternative to meet the needs of H 2 O 2 utilization in ocean, while with challenges of competitive ions influence and unsolved photocatalytic mechanism. Herein, we constructed a S-scheme heterojunction with the lamellated WO 3 coated CdS semiconductors for photoproduction of H 2 O 2 in actual seawater. Fragmented WO 3 uniformly spread on surface of dispersed CdS spheres by two steps including calcination and ultrasound. Photocatalyst achieved considerable 1.00 mmol·g cat −1 ·h −1 of H 2 O 2 productivity in seawater without electron-proton donors and pure O 2 , 9.3 % of apparent quantum yield (AQY), as well as good reusability. A co-catalysis concept was proposed to explore specific role of ions in seawater on H 2 O 2 photoproduction. S-scheme heterojunction contributed to migration of electrons and holes on interface between WO 3 and CdS, and further promoted separation of photocarriers, and further opened another channel for H 2 O 2 generation. Accumulated electrons in conduction band (CB) of CdS involved in the main route of two-electron reduction of O 2 for H 2 O 2 production, also promoted generation of •O 2 - for opening the auxiliary route. WO 3 /CdS heterojunction provided fundamentals and opportunities for H 2 O 2 production and applications in abundant seawater as a sustainable way.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2020
·Vol. 9
·期 3
·1678-1691
·
IF 11.301
Fang F. Wang,Chang D. Chen,Wei Wang,Ming L. Kang,Ying Gao,Xue B. Chen,Jing Zhang
Different from transition metals, Na ions cannot be incorporated in the WO3 lattice, but exist in the open framework formed by corner-sharing WO6 octahedra. Based on this channel-inserted Na-doping mechanism, herein, an in situ ion migration-based internal electric field (IEF) engineering strategy is developed. Firstly, Na channel-doped WO3 (Na/WO3) was prepared via a hydrothermal method. Driven by an increase in temperature, Na ions directionally migrated through channels towards the surface region of WO3, leading to an uneven charge distribution between the inner and outer side of the WO3 structure, together with the formation of a core–shell m-WO3/h-WO3 phase junction, and then the IEF from h-WO3 (+) to m-WO3 (−) was built. With a further increase in temperature, Na ions formed chemical bonds with O atoms belonging to the WO6 octahedra, forming a series of core/shell heterojunctions with consecutive –O–W–O– at the interface, including m-WO3/T-Na2W4O13 and m-WO3/T-Na5W14O44, which provide a pathway for the electron transfer. The distinct O 1s oxidation states between the two sides of the atomic junction interface were suggested to be the driving force for the formation of IEF in two heterojunctions. Electrons transfer to one side with a higher O 1s oxidation state along –O–W–O– bands at the interface to build IEF. Transient photocurrent measurement, photoluminescence spectroscopy, steady-state surface photovoltage spectroscopy (SS-SPV) and Mott–Schottky curves were used to investigate separation efficiencies of Na/WO3-T and the relationship with their relative IEF strength and activities. Results indicate that the synergistic effect of IEF and junctions is the main reason for the efficient carrier separation, finally resulting in improved photocatalytic oxygen evolution.
研究领域:
材料科学
·
化学工程
·
能源科学
✓ 已验证
DOI
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2017
·
IF 4.784
Ying Wu,Yuelin Wei,Qiyao Guo,Hui Xu,Ling Gu,Feiyue Huang,Dan Luo,Yunfang Huang,Leqing Fan,Jihuai Wu
A series La-doped WO 3 /SrTiO 3 heterojunctions photocatalyst were successfully prepared using solvothermal method . The as-fabricated heterostructures composite included La-doped WO 3 fluff spheres tightly grew on the surface of SrTiO 3 cubic particles. The crystallanity, structural, morphological and optical features of the catalysts were characterized using several techniques including XRD , XPS , SEM, TEM UV−vis and HRTEM. The photocatalytic activity of the heterojunction was evaluated by the photocatalytic degradation of methyl orange (MO) under visible-light irradiation. The influence of La doping and SrTiO 3 molar ratio on heterojunctions photocatalysts was investigated. Among the as-prepared photocatalysts, the LWS50 sample exhibited the highest photocatalytic activity , almost 100% MO were completely decomposed within 75 min under visible light irradiation (λ > 420 nm). Compared with the pure WO 3 and SrTiO 3 , the enhancement of photocatalytic activity was mainly attributed to the three-dimensional hierarchical structure and the effectively transfer and separation of photogenerated electron–hole pairs in La doped WO 3 and SrTiO 3 heterojunctions
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
·
2022
·
IF 6.437
Koïta Djakaria,Ziyue Tang,Jingai Shao,Xu Chen,Haoyu Xiao,Joseph Smith,Haiping Yang,Hanping Chen
Furfural is one of the top valuable building block chemicals, the selective production of furfural from biomass has attracted increasing concerns in recent years. In this work, a novel method for the selective production of furfural through cellulose catalytic pyrolysis with WO 3 /γ-Al 2 O 3 was reported, and the synergistic effect between γ-Al 2 O 3 and WO 3 was explored. Compared with cellulose pyrolysis alone, the addition of γ-Al 2 O 3 improved the selectivity of furans and greatly inhibited the formation of sugars; while, WO 3 addition promoted the formation of levoglucosenone . When (20–40%) WO 3 /γ-Al 2 O 3 were added, the amount of sugars was further reduced, and the yields of furans (furfural and 2-methylfuran, in particular) were further increased at the same time. Under the optimum conditions (temperature = 600 °C, residence time = 15 s, and catalyst to cellulose mass ratio of 4), 30%WO 3 /γ-Al 2 O 3 showed the best performance, and the selectivity and yield of furfural were improved by nearly 100% and 300%, respectively, as compared with cellulose pyrolysis alone. In addition, compared with γ-Al 2 O 3 , the addition of 30%WO 3 /γ-Al 2 O 3 further increased the yield of furfural and 2-methylfuran to about 50% and 200%, respectively. The high selectivity and yields of furans with WO 3 /γ-Al 2 O 3 addition might be due to that WO 3 crystals in the composite promote the formation of levoglucosenone, which is further converted to additional furans through the Lewis acid sites of γ-Al 2 O 3 . The study may provide some meaningful advices for improving the production of furfural from green catalytic pyrolysis of cellulose.
研究领域:
化学工程
·
可再生能源
✓ 已验证
产品关联
DOI
高影响因子
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
·
2021
·Vol. 128
·期 1
·1-14
·
IF 2.584
Chen Peng,Wu Keliang,Peng Xiang,Ma Yue,Yang Xuqi,Duan Xinping,Ma Yan,Liu Zhiyong
Hydrogen and oxygen production based on photocatalytic monolithic water splitting is considered to be one of the effective ways to produce sustainable and clean energy. The key challenge in this process is to develop new photocatalysts that can simultaneously produce H 2 and O 2 at a stoichiometric ratio of 2:1 without the use of any sacrificial agents. In order to solve this problem, highly efficient and ingenious photosystems in nature have been studied intensively. Herein, we prepared printable Z-type composite photocatalysts CdS@TiO 2 /Pt/ITO/WO 3 /Co 3 O 4 mimicking biological vegetative leaves in nature and constructed an “artificial leaf” device that completely decomposes water. We use an electron solid penetrating transporter ITO, which can rapidly transfer photogenerated electrons and photogenerated holes and reduce the compound rate of photogenerated carriers. Thus, the efficiency of photocatalytic total water dissolution is enhanced. This photocatalyst was able to produce both H 2 and O 2 in water with an H 2 production rate of 75.93 μmol g −1 h −1 and an O 2 production rate of 36.49 μmol g −1 h −1 . We designed the oxygen-producing photocatalyst WO 3 /Co 3 O 4 , which produced oxygen at a rate of 159.21 μmol g −1 h −1 6 times higher than that of WO 3 alone. Furthermore, the morphology, composition, and microstructures of the photocatalyst were characterized by field-emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and nitrogen adsorption–desorption.
研究领域:
材料科学
·
化学工程
·
环境科学
·
纳米技术
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Chemistry
·
2025
·
IF 14.9
Jiayu Xu,Fulin Yang,Xia Guo,Shuli Wang,Ligang Feng
Supported Ru nanoparticles with high utilization are promising for the hydrogen evolution reaction (HER) but the effect of the crystal phase engineering of supports on their performance remains unclear. Here, the impact of the crystal phase of the support on the catalytic activity of Ru was probed by anchoring Ru nanoparticles onto precisely synthesized hexagonal (WO 3 -H), orthorhombic (WO 3 -O), and monoclinic (WO 3 -M) supports followed by thorough evaluation for HER. Among them, WO 3 -H demonstrated superior performance by providing enhanced Ru anchoring and uniform dispersion, maximizing active site availability. A critical finding is the small work function difference (Δ W F ) between Ru and WO 3 -H, which minimizes interfacial charge accumulation and facilitates efficient hydrogen spillover, thereby accelerating HER kinetics. In contrast, WO 3 -O and WO 3 -M exhibited larger Δ W F and less effective Ru dispersion, resulting in a larger hydrogen spillover barrier and suboptimal hydrogen adsorption/desorption dynamics. As a result, Ru/WO 3 -H exhibited the best performance, achieving an overpotential of 43.8 mV at 10 mA cm −2 and a Tafel slope of 49.1 mV dec −1 . This work highlights the critical role of the crystal phase in optimizing the intrinsic catalytic activity of catalysts, offering new insights for designing efficient HER catalysts.
研究领域:
材料科学
·
电催化
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2021
·
IF 7.46
Yuan Li,Hongtao Wang,Yueying Liu,Yueyue Li,Chenchang Wang,Jihao Bai,Lin Yang,Yilin Wang,Fengmin Liu,Xishuang Liang,Geyu Lu
Bimetallic nanocrystals (NCs) have received a lot of attention due to its excellent catalytic performance. Here, PtRu NCs were successfully synthesized by ethylene glycol and used to modify flower-like WO 3 which was prepared via a simple hydrothermal method . The morphology and structure of the as-synthesized materials were characterized, and the performance of the gas sensor based on PtRu NCs decorated WO 3 was carefully studied. The gas sensing investigation showed that there was a significant improvement in response after PtRu NCs being introduced. Among all samples, the WO 3 sample modified with 0.4 wt% PtRu NCs showed the highest response to xylene at 170 °C (Ra/Rg = 261), which is almost 75 times than that of pristine WO 3 . In addition, it also presented fast response speed (2 s), good selectivity to xylene and excellent repeatability. The possible sensitization mechanism was proposed, the improvement of sensing performance could be ascribed to the high catalytic activity of PtRu NCs, and the regulation of depletion layer by Schottky barrier and heterojunction at the contact interface between WO 3 and PtRu NCs. This work can be promising for rapid detection of xylene for environmental protection at low temperature.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2021
·Vol. 56
·期 13
·8079-8090
·
IF 4.22
Liu Jiali,Yang Qiang,Liu Jikai,Luo He’an
Tungsten trioxide (WO 3 ) has been conceived as a promising photoanode material for photoelectrochemical (PEC) water oxidation. Therefore, many efforts have been made to improve its PEC performances. Herein, a novel heterojunction is fabricated through combining rocksalt CoO (R-CoO) or blende CoO (B-CoO) nanosheets with WO 3 nanoplates using a spin-coating method. The typical type II heterojunctions, e.g., WO 3 /R-CoO and WO 3 /B-CoO, both have exhibited higher photocurrent densities than pristine WO 3 photoanode. The photocurrent densities of WO 3 /R-CoO, WO 3 /B-CoO and WO 3 are 0.53 mA cm −2 , 0.45 mA cm −2 and 0.31 mA cm −2 at 1.23 V vs. reversible hydrogen electrode, respectively. For the WO 3 /R-CoO photoanode, the surface charge separation efficiency is 50.95% and the photoconversion efficiency is 0.062%, which are both higher than the WO 3 and WO 3 /B-CoO photoanodes. The enhanced PEC performances are due to the type II heterojunction between WO 3 and R-CoO (or B-CoO), which facilitates the absorption of visible light and charge transport. The better performance of WO 3 /R-CoO than that of WO 3 /B-CoO may be due to the deeper valence band position of R-CoO. Our work demonstrates that R-CoO (or B-CoO) can couple with WO 3 to form a type II heterojunction to improve the PEC water oxidation performance.
研究领域:
材料科学
·
光电化学
·
可再生能源
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）