JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2023
·Vol. 34
·期 16
·1-10
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IF 2.8
Zou Song,Wu Jingxuan,Wang Bo,Luo Qingsong,Wang Wenjun,Wang Zhenxing,Wan Yu,Feng Changhao
The efficient and reliable monitoring of trimethylamine (TMA) is significant to environmental protection and human healthcare. The Molybdenum trioxide (MoO 3 ) nanofibers can be regarded as a promising sensing material with a low-detection limit for trimethylamine. MoO 3 nanofibers with controlled morphology were synthesized by adjusting electrospinning and calcination conditions. MoO 3 with the second-step calcination time is 90 s, which shows excellent trimethylamine sensing properties. The response of sensors based on M-90 nanofibers to 50 ppm acetone is 82.3 at 175 °C. And it has excellent selectivity to TMA. The sensors show good selectivity to TMA, compared to other gases to be measured. Finally, a detailed study of the sensing mechanism of MoO 3 is conducted to analyze the reasons for exhibiting high response to TMA.
研究领域:
材料科学
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环境科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2021
·
IF 4.527
Wenfei Liang,Linping Zhong,Lijun Quan,Xuejia Wang,Mengjiao Liu,Xin Lai,Jian Bi,Daojiang Gao,Xiaohong Liu,Wei Zhang,Yan Zhao
Transition metal oxides (TMOs) based compounds are recognized as high-energy anodes in next-generation lithium-ion batteries (LIBs) due to their extremely high theoretical capacity. However, the lower intrinsic conductivity , fast fading cyclic stability and dramatic volume expansion during discharge/charge processes greatly hinder the practical application of TMOs as anodes in LIBs. In this study, we have designed and constructed MoO 3 /ZnCo 2 O 4 QDs@C@rGO/MoO 3 (denoted as GMZCO) sandwich-structured hybrid nanocomposites via an effective route, and have proposed the formation mechanism of this unique nanostructured composite on the basis of the systematic results of the microstructures. Due to the unique sandwich structure and the synergistic enhancement effect of the ZnCo 2 O 4 QDs , α-MoO 3 and rGO, the as-constructed GMZCO exhibits the superior electrochemical performances when used as anode for LIBs. The obtained GMZCO can maintain high capacity of 1281 mAh g −1 at 0.2 A g −1 after 300 cycles, and can deliver as high as specific capacity of 913 mAh g −1 at 1 A g −1 after 500 cycles, revealing the higher capacity and excellent cyclic stability. What deserves to be mentioned most is that GMZCO can keep a capacity of 541 mAh g −1 after 1400 cycles even at higher current density of 3 A g −1 , having outstanding rate capability. This work paves a novel approach for design TMOs with unique microstructures as a promising anode for the high-performances LIBs.
研究领域:
材料科学
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能源存储技术
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale
·
2016
·Vol. 8
·期 16
·8696-8703
·
IF 7.76
Fangxu Ji,Xianpei Ren,Xiaoyao Zheng,Yucheng Liu,Liuqing Pang,Jiaxing Jiang,Shengzhong (Frank) Liu
By taking advantages of both grinding and sonication, an effective exfoliation process is developed to prepare two-dimensional (2D) molybdenum oxide (MoO3) nanosheets. The approach avoids high-boiling-point solvents that would leave a residue and cause aggregation. Gas sensors fabricated using the 2D-MoO3 nanosheets provide a significantly enhanced chemical sensor performance. Compared with the sensors using bulk MoO3, the response of the 2D-MoO3 sensor increases from 7 to 33; the sensor response time is reduced from 27 to 21 seconds, and the recovery time is shortened from 26 to 10 seconds. We attribute the superior performance to the 2D-structure with a much increased surface area and reactive sites.
研究领域:
材料科学
·
化学传感器
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ANALYTICA CHIMICA ACTA
·
2020
·
IF 5.977
Zhen Lin,Xiaomin Zhang,Shijun Liu,Linlin Zheng,Yemei Bu,Haohua Deng,Ruiting Chen,Huaping Peng,Xinhua Lin,Wei Chen
Nanozymes, or nanomaterials that mimic the behaviors of enzymes , are highly promising materials for biomedical applications because of their excellent chemical stability under harsh conditions, simple preparation method and lower costs compared with natural enzymes. We herein report the intrinsic oxidase-mimicking activity of molybdenum oxide nanoparticles (MoO 3 NPs). MoO 3 NPs catalyzed the oxidation of colorless 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) to green product. The catalytic mechanism of the oxidase-mimicking activity of the MoO 3 NPs was investigated in detail using electron spin resonance and a radical inhibition method. The oxidation of ABTS stems from 1 O 2 generated from the interaction between MoO 3 NPs and dissolved oxygen in the solution. Acid phosphatase (ACP) catalyzes the hydrolysis of the ascorbic acid 2-phosphate (AAP) substrate to produce ascorbic acid (AA). AA was found to fade the coloration process of the MoO 3 NP-mediated ABTS oxidation. By combining the oxidase-mimicking property of the MoO 3 NPs and the ACP-catalyzed hydrolysis of AAP, a novel and simple colorimetric method for detecting ACP was established. The linear range for ACP determination is 0.09–7.3 U/L with a detection limit of 0.011 U/L. This new colorimetric method was successfully applied to the detection of ACP in diluted human serum samples and screening of ACP inhibitors. The present study proposes MoO 3 NPs as a new oxidase mimic for establishing various biosensing method.
研究领域:
生物医学工程
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分析化学
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纳米技术
✓ 已验证
DOI
PubMed
高影响因子
Small
·
2024
·
IF 13
Gang Zhao,Huanchi Chen,Bingzhe Jia,Shanshan Bai,Xinrui Qiang,Xinming Wu
All-solid-state supercapacitors are known for their safety, stability, and excellent cycling performance. However, their limited voltage window results in lower energy density, restricting their widespread application in practical scenarios. Therefore, in this work, CC/MoO 3 @Ti 3 C 2 T x negative electrode and Mo 1 Al 1 -MnO 2 /CC positive electrode materials are synthesized and prepared by electrochemical deposition co-coating and one-step hydrothermal methods, respectively, and assembled into an asymmetric supercapacitor (ASC) device based on the two electrode materials. The study reveals that the surface capacitances of the positive and negative electrodes are 1685.5 mF cm −2 and 1134.98 mF cm −2 correspondingly, with potential windows of both as high as 1.1 V. Surprisingly, the potential window of the all-solid-state supercapacitor assembled based on the two electrodes reaches 2.2 V, and the energy density reaches 0.44 m W h cm −2 , which is much higher than the performance indicators based on similar electrodes. The resulting excellent performance parameters are mainly attributed to the efficient synergy between the pseudo-capacitance effect of the MoO 3 film and the high electrical conductivity of the Ti 3 C 2 T x sheets, as well as the great improvement of the intrinsic electron mobility and ion diffusion channel stability of MnO 2 by Mo and Al bimetallic doping.
研究领域:
材料科学
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能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MATERIALS & DESIGN
·
2016
·
IF 3.997
Yuhua Zhu,Xueming Li,Daixiong Zhang,Hebin Bao,Yuanjie Shu,Xiaogang Guo,Yanjun Yin
Al/MoO 3 nanoenergetic films (nEFs) were successfully prepared by the electrophoretic deposition (EPD) method. Polyethylenimine (PEI) was used to modify the surface charge of Al and MoO 3 particles for the first time. In particular, the zeta potentials of Al/MoO 3 were varied from negative value to highly positive one, which could contribute to the co-deposition of Al and MoO 3 particles on the cathode. In addition, an effective adsorption of PEI on the particles was demonstrated by the FT-IR result. The kinetics of EPD process were investigated in this paper that the linear relationship of the equivalence ratio in the deposited film (Φ d ) to that in suspension (Φ s) was observed for Al/MoO 3 nEFs. Furthermore, The FESEM , EDS and XRD analysis showed that Al/MoO 3 nEFs were homogeneous mixed and composed of Al and MoO 3 . The DSC and combustion processes results indicated that the exothermic behaviors were affected by the molar ratio of the fuel (Al) to the oxidizer (MoO 3 ) in Al/MoO 3 nEFs, and reached to the maximum of 3419 J/g and the most violent combustion as the Φ s was 1.6, respectively. Al/MoO 3 nEFs with excellent performance could lead to advances in the microelectro mechanical system technologies.
研究领域:
材料科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2021
·
IF 13.273
Yuying Wu,Zhangran Gao,Hao Li,Xiaofan Sun,Dong Li,Gang Zhou,Hong-Ling Cai,Xiaoshan Wu
Extraction or injection of charges through the interface in hybrid catalysts is a fascinating strategy for steering charge carrier transfer in solar energy conversion applications. Instead of interfacial charges regulation, we adopt intrinsic spontaneous polarization-modulated internal electric field to drive photo-generated carriers separation and transfer in both the bulk and surface for photocatalysis. Herein, we first report a series of nano-composites made of perovskite ferroelectric BiFe 0.9 Mn 0.1 O 3 and orthorhombic phase α-MoO 3 semiconductor (BFMO- x M, x = 0, 5%, 10%, 15%) via two-step thermal synthesis method. With × = 10%, the heterostructure exhibits significantly enhancement of optical response and photo-decomposion tetracycline capacity under sunlight compared with pure BFMO and M. The improved photocatalysis is attributed to the superimposed actions of the Z-scheme charge transfer through interface and the polarization field in BFMO for the anti-recombination of photo-excited electron-hole pairs. This work indeed offers a strategic design over multicomponent catalyst by consider the synergy of polarization charges and interfacial charge transmission for solar energy conversion.
研究领域:
材料科学
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环境科学
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化学工程
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2025
·Vol. 36
·期 4
·1-14
·
IF 2.8
Zheng Jianshuo,Wang Chenyue,Lei Pengli,Ni Liangyong,Zhang Jianhao,Dong Wei
MoO 3 is a typical transition metal oxide, which is widely used in many fields owing to its unique physicochemical properties. Current studies have shown that Carbon (C) or metallic compounds (M) can enhance its absorption properties. In this study, we employed interface engineering methods and utilized a core–shell encapsulation structure to investigate the superior electromagnetic wave absorption performance of molybdenum oxide double-layer composite materials under different coating sequences. o-MoO 3 /M/C (external PPy internal metal ions, ratio 1:1) and o-MoO 3 /C/M (external metal ions internal PPy, ratio 1:1) were synthesized by hydrothermal synthesis and pyrolysis. By comparing the absorption results of the two samples, o-MoO 3 /M/C is significantly better than o-MoO 3 /C/M. The widest absorption bandwidth is 5.28 GHz when the material (o-MoO 3 /M/C) thickness is 6.6 mm, with a minimum reflection loss (RL min ) of − 20.42 dB when the material thickness is 5.7 mm.
研究领域:
材料科学
·
物理学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Jian Fang,Qilin Wang,Yizhuo Fan,Wei Wang,Yu Chen,Shengping Ruan
Volatile organic compounds (VOCs), particularly xylene, are hazardous air pollutants that pose significant health risks due to their toxicity and widespread occurrence in indoor and industrial environments. In this work, we report a xylene gas sensor based on MoO 3 decorated with SrMoO 4 nanoparticles, designed to achieve enhanced sensing performance through heterojunction engineering. The SrMoO 4 /MoO 3 composites were synthesized via a facile solvothermal route, enabling uniform dispersion of SrMoO 4 on the MoO 3 surface. Among the fabricated samples, the optimized SrMoO 4 /MoO 3 sensor exhibited a high response of 29.2 toward 20 ppm xylene at 200°C, with rapid response/recovery times (5/7 s), surpassing that of pristine MoO 3 by 15.4 times. Moreover, the sensor also showed excellent selectivity toward xylene over other interfering gases such as acetone, trimethylamine, formaldehyde, and ammonia. The superior sensing behavior is attributed to the combined effects of n-n heterojunction formation, reduced crystallite size with lattice strain, increased surface area and pore volume, band gap narrowing, and enhanced chemisorbed oxygen and oxygen vacancy concentration. This study proposes an effective route for constructing advanced xylene sensor through rational heterojunction engineering.
研究领域:
材料科学
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气体传感技术
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纳米材料
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环境监测
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化学传感器
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF NUCLEAR MATERIALS
·
2025
·
IF 3.2
Xingquan Zhang,Yifan Xiong,Sijia Yu,Jingyu Yuan,Kui Zheng,Zhu Cui,Yongchang Zhu,Jichuan Huo
The effect of MoO 3 incorporation on structure and thermal properties (e.g., thermal diffusivity , heat capacity, and thermal conductivity) of a borosilicate glass with a composition of 59.76 SiO 2 –14.46B 2 O 3 –2.90 Al 2 O 3 –11.46 Na 2 O-11.42 CaO (mol%) was investigated systematically. MoO 3 incorporation induced phase separation and crystallization of CaMoO 4 and Na 2 MoO 4 in borosilicate glass. CaMoO 4 phases with grain size of about 200 nm in diameter were homogenously dispersed in the glass matrix, while, Na 2 MoO 4 as a second phase formed on the surface. In addition, MoO 3 incorporation resulted in re-polymerization of the glass network. These structural changes have obvious influence on thermal properties. MoO 3 additions up to 6 wt% decreased thermal diffusivity by 7.5 %, heat capacity by 27.8 % and thermal conductivity by 30.2 %. Correlations between the structure, microstructure and thermal properties were proposed. It is speculated that the decrease of thermal conductivity mainly results from the decrease of mean free path of phonons caused by interface scattering. The understanding of the linkages between structure, microstructure, and thermal properties should provide insights for the design of borosilicate glass compositions for vitrification of MoO 3 -rich high-level waste.
研究领域:
材料科学
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玻璃化学
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热性能
·
高放废物玻璃固化
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2017
·
IF 2.986
Huiyong Li,Ping Liu,Nan Zhou,Xiaobing Huang,Haiyan Wang
Stabilizing the layer structures of Mo-based anode materials is still a challenge for Li ion batteries . Herein, we proposed an electrochemical presodiation strategy for MoS 2 and MoO 3 to improve their cycling stability. It is interesting to note that the cycling stability of as-treated MoS 2 and MoO 3 was significantly improved. Although the reversible discharge capacity was slightly decreased, the capacity of the pretreated MoS 2 at 300 mA g −1 was retained at 345 mA h g −1 after 100 cycles while that of the pristine one decreased to 151 mA h g −1 . The capacity of the pretreated MoO 3 after 60 cycles was also improved from 275 mA h g −1 (the pristine one) to 460 mA h g −1 . The stabilizing effect was further verified by scanning electron microscope (SEM) analysis. Electrochemical presodiation here could be a promising modification strategy for Mo-based anode materials.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Energies
·
2021
·Vol. 15
·期 1
·53
·
IF 3.004
Kai Miao,Tan Li,Jing Su,Cong Wang,Kaige Wang
Catalytic hydropyrolysis via the introduction of external hydrogen into catalytic pyrolysis process using hydrodeoxygenation catalysts is one of the major approaches of bio-oil upgrading. In this study, hydrodeoxygenation of acetone over Mo/HZSM-5 and HZSM-5 were investigated with focus on the influence of hydrogen pressure and catalyst deactivation. It is found that doped MoO3could prolong the catalyst activity due to the suppression of coke formation. The influence of hydrogen pressure on catalytic HDO of acetone was further studied. Hydrogen pressure of 30 bar effectively prolonged catalyst activity while decreased the coke deposition over catalyst. The coke formation over the HZSM-5 and Mo/HZSM-5 under 30 bar hydrogen pressure decreased 66% and 83%, respectively, compared to that under atmospheric hydrogen pressure. Compared to the test with the HZSM-5, 35% higher yield of aliphatics and 60% lower coke were obtained from the Mo/HZSM-5 under 30 bar hydrogen pressure. Characterization of the spent Mo/HZSM-5 catalyst revealed the deactivation was mainly due to the carbon deposition blocking the micropores and Bronsted acid sites. Mo/HZSM-5 was proved to be potentially enhanced production of hydrocarbons.Keywords:hydrodeoxygenation;biomass;hydropyrolysis;MoO3;bifunctional catalysts
研究领域:
化学工程
·
能源科学
✓ 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）