Solar RRL
·
2023
·Vol. 7
·期 10
·2300023
·
IF 7.9
Yaju Wei,Guoqiang Yu,Guohui Luo,Wang Fu,Wuqi Liu,Tao Wang,Haonan Xu,Xiaoping Wu,Lingbo Xu,Ping Lin,Xiaodong Zhu,Xuegong Yu,Peng Wang,Can Cui
Molybdenum oxide (MoO 3− x , x < 3) has been successfully used as an efficient hole-selective contact material for crystalline silicon heterojunction solar cells. The carrier transport capability strongly depends on its work function, that is, oxygen vacancies; however, there are lack of effective methods to modulate the multiple oxidation states. Herein, the oxidation states of solution-processed MoO 3− x by doping Nb 5+ to improve its hole-selective contact performance with silicon are tuned. With the optimum doping concentration of 5%, both the reduced Mo 5+ and oxygen vacancies increase, resulting in a decrease in the contact resistivity between the MoO 3− x film and p -type silicon from 161.1 to 62.9 mΩ·cm 2 and an increase of the effective carrier lifetime from 165.4 to 391.0 μs simultaneously. Similarly, the doping of Ta 5+ or V 5+ in MoO 3− x improves the passivated contact performance with silicon, while the former increases the concentration of oxygen vacancies and the latter reduces it. The solar cell with the structure of Ag/MoO 3− x :Nb/ p -Si exhibits a conversion efficiency of 18.37%, which is the highest so far reported for the solution-processed MoO 3− x /silicon heterojunction. This work demonstrates a feasible strategy of tuning hole selectivity in MoO 3− x by doping for high-efficiency solar cells and other optoelectronic device applications.
研究领域:
材料科学
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光伏技术
·
半导体物理
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES PART B-ENGINEERING
·
2025
·
IF 14.2
Ali Asghar,Muhammad Shahid Rashid,Muhammad Hamza,Mohsin Raza,Iftikhar Hussain,Zhangwei Chen
Due to the dense and disordered distribution of nanomaterials, the bulk electrode structure hindered advancement in energy storage devices. However, 3D printing technology supported the layer-by-layer printing process displays interconnected porous structures that provided the continuous pathways for effective diffusion of ions and electrons transportation, offering the kinetic limitations typically associated with electrode thickness. Herein, a functionalized ink composed of MV0.3/AC/PVDF for both bulk and direct ink writing (DIW) printing, enabling the construction of both electrodes with customized structure in 1-layer and 2-layer configuration. In the AASC testing, the 2-layer printed AASC(3DP-2LMV0.3) revealed a significantly high areal capacity up to 1.54 C cm −2 at 6.2 mg cm −2 mass loading. Furthermore, the 3DP-2LMV0.3 delivered a high areal energy density 333.4 μW h cm −2 compare to 3DP-1LMV0.3 and BMV0.3, without compromising areal power density (2.1 mW cm −2 ) at current density (1.24 mA cm −2 ), with the excellent retention of 94.8 % after 5 k charging/discharging cycles. This work highlights the potential of DIW-3D printing as a scalable approach to construct vertically aligned porous structure with thick electrode scaffolds. It offers a promising platform for advanced energy storage applications with reduced solution resistance for ion/electron transport compared to bulk electrode structures.
研究领域:
材料科学
·
储能技术
·
纳米技术
·
增材制造
·
电化学
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·
IF 19
Ying Fang,Yang Yu,Xiaoyan Jiang,Peilai Liu,Yu Chen,Wei Feng
Residual tumor cells and bone tissue defects are two critical challenges in clinical osteosarcoma treatment. Herein, a subnanomedicine concept is proposed by developing a self-adaptive functional tissue engineering scaffold constructed by integrating MoO 3− x subnanometric wires onto 3D printing bioactive glass scaffolds. The MoO 3− x subnanometric wires are synthesized by a one-pot hydrothermal method, which aggregate in an acidic tumor microenvironment and react with hydrogen peroxide to produce reactive oxygen species for specific chemodynamic therapy. However, they can degrade rapidly under physiological conditions without causing toxicity. Moreover, self-adaptively enhanced photothermal conversion enables tumor-targeting photothermal therapy while enhancing chemodynamic therapy. Additionally, the Mo 5+ -Mo 6+ transition enables lipid peroxide accumulation and glutathione depletion, thereby resulting in the deactivation of glutathione peroxidase 4 protein and ferroptosis through Western blot analysis, confocal laser scanning microscopy observation, and mRNA transcriptome analysis. In addition to its robustness against osteosarcoma, the constructed scaffolds can stimulate rat bone mesenchymal stem cell differentiation and proliferation as well as promote osteogenesis in bone defects. Therefore, this multifunctional scaffold not only validates the subnanomedicine concept but also provides a promising clinical strategy for bone tissue engineering.
研究领域:
生物医学工程
·
材料科学
·
癌症研究
·
组织工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Nano
·
2025
·
IF 16
Changxuan Ye,Shuang Yao,Xiong Xiao,Pei Zhu,Wen Zhang,Xian Yang,Changhua An
Ru-based clusters represent a class of promising electrocatalysts for pH-universal hydrogen evolution reaction (HER), yet their practical application is hindered by nanoparticle aggregation and strong oxygen affinity, leading to compromising activity and stability. This study proposes a strategy by integrating strong metal–support interactions with a built-in electric field (BIEF), in which the electrostatic interaction facilitates the design of a class of heterostructure catalysts comprising RuO2–x clusters and MoO3 on Ni(OH)2 (RuO2–x/MoO3–Ni(OH)2). Detailed characterizations reveal that the engineered BIEF induces charge redistribution, leading to the enhanced electron density at Ru active sites. This electronic modulation effectively weakens the adsorption of the OH group while substantially boosting catalytic activity and stability. The synthesized RuO2–x/MoO3–Ni(OH)2 achieves low overpotentials of 64, 150, and 83 mV at 100 mA cm–2 in 1.0 M KOH, 1.0 M phosphate-buffered saline (PBS), and 0.5 M H2SO4, respectively. Furthermore, it exhibits robust stability for 150 h at 100 mA cm–2 in an alkaline solution. In an anion exchange membrane water electrolyzer, the catalyst requires only 1.76 V to attain 0.5 A cm–2. This work establishes a pioneering pathway for designing efficient electrocatalysts toward the production of clean energy carriers.
研究领域:
电化学
·
纳米材料
·
催化
·
能量转换
·
表面科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Ya-Ya Yang,Hao-Peng Feng,Xue-Gang Zhang,Hai Guo,Xiao-Ju Wen,Long Sui,Zheng-Tao Dong,Ming Yan,Cheng-Gang Niu
Water pollution caused by organic pollutants and water-borne pathogens has posed a serious threat to human health. Herein, a fully encapsulated core–shell MoO 3-x @Zn 2 In 2 S 5 S-scheme heterojunction was constructed for efficient removal of ciprofloxacin (CIP) and disinfection of antibiotic-resistant bacteria (TC- E. coli ). The excellent catalytic performance is attributed to the synergistic advantages of optimized oxygen defect concentration, the protection of oxygen vacancy and enhanced photogenerated carrier separation efficiency. The MO@ZIS-15 with optimum defect density can remove 92.6 % of CIP in 120 min and inactivate 7.7 log TC- E. coli in 75 min. Furthermore, the developed MO@ZIS-15 system has excellent anti-anion and organic matter interference ability, and also exhibit good utilization potentiality in practical water. Combining theoretical calculations and liquid chromatography-mass spectrometry (LC-MS), the structure–function correlation between different CIP active sites and degradation pathway are revealed. Toxicity prediction and cytotoxicity experiments demonstrated that photocatalytic treatment can effectively reduce the ecotoxicity of degradation products. This work provideds a novel vision to design high-efficiency plasma-based photocatalysts for the removal of organic contaminants and disinfection of antibiotic-resistant bacteria.
研究领域:
环境科学
·
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Yuanhao Ouyang,Honghui Jiang,Haoxiang Zhong,Guoyu Li,Xiaodong Ji,Qi Jin,Wei Xue,Xinjiang Hu,Mingshan Zhu
Algal blooms have resulted in the buildup of microcystin (MC-LR) in water bodies, posing a severe hazard to the safety of the aquatic ecosystem and human health. This study produced a g-C 3 N 4 with N 2C -type defects/MoO 3 Z-scheme photocatalyst (D-CN/MoO 3 ) for MC-LR degradation in visible light. D-CN/MoO 3 could photodegrade 100 % MC-LR within 25 min, which was substantially more significant than pure g-C 3 N 4 (12.5%). Meanwhile, the kinetic constant was 32.5 times higher than pure g-C 3 N 4 , attributed to the defect engineering and Z-scheme heterojunction cooperative interaction. Based on the LC-MS results, the vital degradation mechanism is the selective assault of 1 O 2 on the Adda side chain of MC-LR and the following decarboxylation reaction of h + , which leads to effective mineralization and reduced toxicity of MC-LR. Moreover, the excellent stability and adaptability of D-CN/MoO 3 are verified and have a significant potential for application in the decontamination of MC-LR in eutrophic water.
研究领域:
环境科学
·
化学工程
·
水处理
·
光催化
✓ 已验证
产品关联
DOI
高影响因子
MICROCHIMICA ACTA
·
2024
·Vol. 191
·期 7
·1-13
·
IF 5.3
Wang Yuefan,Chen Yinzhi,Zhou Yuhe,Wang Yilin,Wu Yingjie,Xie Yixi,Zhao Pengcheng,Hu Xiayi,Fei Junjie
Rutin extracted from natural plants has important medical value, so developing accurate and sensitive quantitative detection methods is one of the most important tasks. In this work, HKUST-1@GN/MoO 3 -Ppy NWs were utilized to develop a high-performance rutin electrochemical sensor in virtue of its high conductivity and electrocatalytic activity. The morphology, crystal structure, and chemical element composition of the fabricated sensor composites were characterized by SEM, TEM, XPS, and XRD. Electrochemical techniques including EIS, CV, and DPV were used to investigate the electrocatalytic properties of the prepared materials. The electrochemical test conditions were optimized to achieve efficient detection of rutin. The 2-electron 2-proton mechanism, consisting of several rapid and sequential phases, is postulated to occur during rutin oxidation. The results show that HKUST-1@GN/MoO 3 -Ppy NWs have the characteristics of large specific surface area, excellent conductivity, and outstanding electrocatalytic ability. There is a significant linear relationship between rutin concentration and the oxidation peak current of DPV. The linear range is 0.50–2000 nM, and the limit of detection is 0.27 nM (S/N = 3). In addition, the prepared electrode has been confirmed to be useful for rutin analysis in orange juice. Graphical Abstract
研究领域:
分析化学
·
材料科学
·
电化学
·
食品科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2023
·Vol. 107
·期 2
·704-718
·
IF 3.9
Jian Bao,Wei Du,Haitao Wu,Zhenxing Yue
In this study, two novel microwave dielectric ceramics were designed and synthesized using the solid-state reaction method based on the CaO–MoO 3 –La 2 O 3 pseudo-ternary phase diagram. The X-ray diffraction (XRD) patterns and Rietveld refinement results indicate that pure phase microwave dielectric ceramics (CaLa 2 (MoO 4 ) 4 and Ca 3 MoO 6 ) can be produced with CaO, MoO 3 , La 2 O 3 ratios of 1, 1, 4, and 3, 1, 0, respectively. CaLa 2 (MoO 4 ) 4 shows the potential value for application in Low Temperature Co-fired Ceramic technology. In addition, the Phillips–van Vechten–Levine theory, infrared reflectance spectrum, and THz time-domain spectrum are used further to study the structure-property relationship of the two ceramics. Finally, a 5G patch antenna used in Sub-6 GHz communication technology was successfully designed and manufactured. The study of the relationship between chemical bonds and dielectric properties of the two ceramics, along with the development of the patch antenna, establishes a foundation for scientific research and practical applications in related ceramic systems.
研究领域:
材料科学
·
陶瓷
·
电磁工程
·
电信
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2018
·
IF 8.097
Lei Wang,Xiaohong Ji,Ting Wang,Qinyuan Zhang
Electrically driven red emission from MoS2–MoO2–MoO3 (MS-MO) hybrid-based metal–semiconductor–metal (MSM) devices is reported for the first time. MoO3 belts with high crystal quality and sufficient size are synthesized by thermal deposition. A layer of MS-MO hybrid is then produced on the belt surface to form MoO3/MS-MO core–shell by sulfurization. The devices exhibit unique electrical properties, a nonlinear I–V curve, and electric hysteresis characteristics at high applied biases (>2.4 V), where MS-MO hybrids act as electron transport channels. The electroluminescent current of the device increases to a set current limit over time when a constant bias is applied. The novel characteristics of the device are attributed to the space charge limited conduction (SCLC) mechanism occurring in MS-MO hybrids. The strong light emission is from recombination of excitons within the MoS2 phase. This work develops a simple and effective method to drive MoS2 to emit light on a large scale without using monolayer MoS2 and vertical p–n junctions, indicating great potential for future 2D optoelectronics and photonics applications.
研究领域:
材料科学
·
纳米电子学
·
光电子学
·
光子学
·
半导体器件
·
二维材料
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Hui-xin Wang,Hui Ren,Liu Yin,Ya-ru Li,Xin-zhou Wu
Boron has a high calorific value and good application prospects in energetic materials. However, further applications of boron are hindered by its incomplete combustion. MoO 3 has good catalytic properties, and its layered structure can provide good ion flow channels and embedding positions. In this study, mechanical mixtures of B/MoO 3 and B/Mo were prepared. The promotion of B combustion by MoO 3 and Mo was confirmed via combustion heat and burning rate tests. The mechanism by which Mo/MoO 3 promote B combustion was studied by thermal analysis, high-temperature in situ X-ray diffraction, X-ray photoelectron spectroscopy, and Raman spectroscopy . The maximum heat release and burning rate of B/MoO 3 and B/Mo were 2.49 and 2.62 and 2.67 and 2.55 times, respectively, those of raw boron. A pre-ignition reaction occurred when boron first came into contact with the surface of MoO 3 . The oxygen vacancies on the MoO 3 surface served as reaction sites for boron. MoO 3 promoted the combustion of B by opening up oxygen channels and improving the oxygen transport capability. Mo also effectively promoted boron combustion. B/Mo and B/MoO 3 have promising future applications as high energy release materials.
研究领域:
材料科学
·
化学
✓ 已验证
DOI
高影响因子
Journal of Composites Science
·
2021
·Vol. 5
·期 8
·207
·
IF 0
Ying Zhou,Cuihuan Song,Zhixiang Chen,Qixin Zhou
In this study, we prepared a novel coating composed of hexagonal molybdenum oxide (h-MoO3) nanofiller and waterborne epoxy resin (WEP) to provide corrosion protection. We optimized the h-MoO3nanorod synthesis methodology first by changing different parameters (pH, temperature, etc.). Furthermore, the as-prepared h-MoO3rods were characterized using a scanning electron microscope (SEM) and X-ray diffraction (XRD). Finally, the electrochemical impedance spectroscopy (EIS) test results verified that the anticorrosive performance of the composite coatings was improved by incorporation of low content of MoO3nanofiller (0.5 wt.%) compared to pure WEP sample. This developed composite will provide a new insight for the design and fabrication of one-dimensional (1D) nanomaterial (e.g., nanorod) reinforced epoxy coating and other polymeric coating processes.Keywords:waterborne epoxy;molybdenum trioxide nanorod;composites
研究领域:
材料科学
·
腐蚀防护
✓ 已验证
产品关联
DOI
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2022
·
IF 4.831
Xingyu Zhao,Qi Chu,Shuang Guo,Eungyeong Park,Sila Jin,Lei Chen,Yucun Liu,Young Mee Jung
The Ag and MoO 3 layer-by-layer sputtering method was employed to fabricate Ag/MoO 3 coated on a polystyrene (PS) array (Ag/MoO 3 @PS), which exhibited excellent surface-enhanced Raman scattering (SERS) activity. The thickness of the MoO 3 layer was controlled by changing the sputtering power. The SERS intensity of 4-aminothiophenol (PATP) on Ag/MoO 3 @PS with a 2 nm thickness of the MoO 3 layer was comparable to that on pure Ag coated on the PS array (Ag@PS). This is possible because hot electrons were injected from Ag into the MoO 3 layer to enhance the photocatalyst reaction; thus, the SERS spectra of coupled PATP were obtained. The transport of hot electrons rapidly decayed and was blocked with increasing thickness of the MoO 3 layer from 2 nm to 9 nm. Thus, the SERS intensity decreased, and interestingly, the b 2 mode of PATP decreased and nearly disappeared. This study provides new insight into the control of hot electron reduction for catalytic reduction process monitoring.
研究领域:
材料科学
·
物理化学
✓ 已验证
DOI
PubMed
高影响因子
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