APPLIED SURFACE SCIENCE
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2025
·
IF 6.9
Yanbing Zhu,Hao Xiu,Gang Xue,Tianyong Lei,Yu Wang,Zhongfang Li,Shuren Cong,Tingting Wei
The piezoelectric properties are closely related to the properties of photocatalytic membrane in water environment. Here, a self-polarized g-C 3 N 4 /MoO 3 /PVDF-TrFE membrane with high piezoelectricity was synthesized using a facile spin-coating strategy. In the presence of a low-speed water flow, a stabilized photocatalytic hydrogen evolution rate (538.8 µmol g -1 h −1 ) was obtained for the g-C 3 N 4 /MoO 3 /PVDF-TrFE membrane. Experimental results revealed that the g-C 3 N 4 /MoO 3 induced a reorganization of PVDF-TrFE structure and thereby enlarged the polarization electric field to promote the directional migration of charge carriers and exciton dissociation. Additionally, pressure current test demonstrated that under the same pressure conditions, g-C 3 N 4 /MoO 3 /PVDF-TrFE exhibited a higher response than PVDF-TrFE. This work establishes a new method for the polarization electric field and provides a deeper understanding of the hydrogen evolution mechanism.
研究领域:
材料科学
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催化化学
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能源研究
✓ 已验证
产品关联
DOI
高影响因子
Industrial Chemistry & Materials
·
2025
·
IF 11.9
Yan-Chao Qu,Guangyue Xu,Chen Chen,Jianhua Guo,Dingjia Liu,Haiwei Jia,Haonan Guo,Shuya Jia,Jiazhen Jia,Ying Zhang,Lifeng Yan
The development of novel low-temperature selective catalytic reduction (SCR) denitrification catalysts is a crucial research direction for reducing pollution and carbon emissions. Although V2O5-MoO3/TiO2 catalysts have been widely used in commercial applications, achieving effective SCR denitrification for low-temperature flue gases remains a significant challenge. In this study, the catalytic efficiency of the catalysts was systematically investigated and optimized by constructing Pearson linear correlation coefficient models between catalytic activity and different pore structures, substrate crystal planes, and active site components and properties, etc. Through comprehensive characterizations and experiments, anatase TiO2 loaded with 3% V2O5 and 10% MoO3 was developed and demonstrated excellent catalytic activity and stability even in high sulfur content and low-temperature environments. The catalyst was deployed in a pilot plant for over two years, consistently achieving a monthly average denitrification efficiency of over 67% and maintaining an outlet NOx concentration below 50 mg/Nm³. This study provides a robust and efficient low-temperature catalyst for SCR denitrification and offers valuable insights for future catalyst optimization.
研究领域:
环境科学
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催化
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化学工程
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2024
·Vol. 48
·期 15
·6723-6732
·
IF 2.7
Min Sun,Yu Zhang,Zhijun Liang,Rui Zhang,Kai Zhang,Yanhong Lin,Dejun Wang,Tengfeng Xie
Supercapacitors often deliver a significantly high-power density with a long cycling life but low energy density. An exceedingly promising approach is to construct asymmetric supercapacitors (ASCs) reconciling the compromise between power density and energy density. However, ASCs combining transition metal oxides (TMOs) and activated carbon (AC) struggle to improve energy density due to a vast difference in their specific capacitance. To cross this hurdle, we first proposed a new strategy to construct the ASCs with α-MoO3 as the anode and conductive polymer polypyrrole (PPy) as the cathode. The remarkable features of α-MoO3, including its layered structure and ultra-high specific capacitance, along with the stability and fast charge–discharge ability of PPy, have contributed significantly to the augmentation of power density and energy density in ASCs. Taking advantage of these bright features, the operation voltage for α-MoO3//PPy is effectively expanded to 2.0 V, exhibiting a high energy density of 25.9 W h kg−1 at 1538 W kg−1. Furthermore, the energy density presented a remarkable recovery rate, reaching 91.04% of its initial state after undergoing full rate tests. These conclusions reveal that the construction of α-MoO3//PPy can effectively enhance the energy density and power density of supercapacitors.
研究领域:
材料科学
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电化学
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能源存储
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Rong Hu,Zijie Xiao,Yurong Liu,Yongyao Su,Chaozhong Guo,Zhe Chen,Cuihong Liu,Wei Zhang
To enhance the power conversion efficiency (PCE) and stability of all-polymer solar cells (all-PSCs), a new precursor solution based on an in situ chemical reaction of nanomolybdenum powder (Mo), hydrogen peroxide (H2O2), and ammonia (NH3·H2O) was developed for preparing a MoO3 hole transport layer (HTL) for all-PSCs. The results showed that the PCE and stability of PM6:PY-IT solar cells based on the MoO3 HTL were better than those based on a PEDOT:PSS layer. To further understand the relationship between the HTL and the device performance, ultrafast photophysical processes of all-PSCs based on different HTLs were contrastively analyzed. Our research indicated that the micromorphology of active layers could be influenced by the interfacial layer material, consequently determining the photoelectric conversion process of all-PSCs. The MoO3-based all-PSCs had longer charge lifetime, higher charge mobility, and lower charge recombination characteristics compared with the devices based on the PEDOT:PSS layer during the operation time. As a result, the MoO3-based PM6:PY-IT solar cells achieved an initial PCE of 15.2%, and they still maintained more than 80% of their initial efficiency after 1000 h.
研究领域:
材料科学
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光物理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMOSPHERE
·
2023
·
IF 8.8
Yu Liu,Xinhui Xia,Zhelu Gao,Qingliang Zhao,Jing Ding,Xiuwen Cheng,Liangliang Wei
The designation and fabrication of heterogeneous photocatalyst with superior redox capability is an important technique for emerging pollutants treatment. In this study, we designed the Z-scheme heterojunction of stable 3D-Bi 2 MoO 6 @MoO 3 /PU, which could not only accelerate the migration and separation in photogenerated carriers, but also stabilize the separation rate of photo-generation carriers. In the Bi 2 MoO 6 @MoO 3 /PU photocatalytic system, 88.89% of oxytetracycline (OTC, 10 mg L −1 ) and 78.25%–84.59% of multiple antibiotics (SDZ, NOR, AMX and CFX, 10 mg L −1 ) could be decomposed within 20 min under the optimized reaction condition, revealing the superior performance and potential application value. Specifically, the morphology, chemical structure and optical properties detection of Bi 2 MoO 6 @MoO 3 /PU greatly affected the direct Z-scheme electron transferring mode in the p-n type heterojunction. Besides, the ·OH, h + , ·O 2 − dominated the photoactivation process through ring-opening, dihydroxylation, deamination, decarbonization and demethylation in OTC decomposition. Expectantly, the stability and universality of Bi 2 MoO 6 @MoO 3 /PU composite photocatalyst would further broaden the practical application and demonstrated that the potential of photocatalytic technique in antibiotics pollutants for wastewater remediation.
研究领域:
环境科学
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材料科学
✓ 已验证
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2020
·
IF 6.182
Zulfiqar Ali,Yang-wen Wu,Yue Wu,Zulqarnain Arain,Ming-xin Xu,Qiang Lu,Heping Ma,Huan-yu Zhao
Lead (Pb) species are inescapable constituents of the flue gas from coal-fired power plants and other thermal devices, which can cause impeding effects on the selective catalytic reduction (SCR) reactions. Here, the poisoning effects of Pb on the V 2 O 5 -MoO 3 /TiO 2 type SCR catalyst were examined. The poisoned catalysts were prepared by the solid diffusion and incipient wetness impregnation (IWI) methods. The catalytic activity tests indicated that the Pb-doped catalyst prepared by the IWI method suffered a considerable drop in catalytic activity, while a slender influence was observed on the Pb-loaded catalysts prepared by solid diffusion method. Comprehensive characterizations and density functional theory (DFT) calculations were performed on the fresh and poisoned catalysts prepared by the IWI method to unveil the deactivation mechanism. The results showed that Pb species covered the active sites (V species) on the catalyst surface, resulted in the decrease in chemisorbed oxygen, hence reducing the surface acidities. The decrease in reducibility of the catalyst was an important factor for poisoning of the catalyst. Moreover, Pb species reacted with MoO 3 to form PbMoO 4 which agglomerated on the catalyst surface to further deactivate the catalyst.
研究领域:
环境科学
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催化化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF SEPARATION SCIENCE
·
2015
·Vol. 38
·期 8
·1388-1393
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IF 2.737
Yunjian Ma,Cheng Zhao,Yisen Zhan,Jianbin Li,Zhuomin Zhang,Gongke Li
An in situ embedded synthesis strategy was developed for the preparation of a MoO 3 /polypyrrole intercalative sampling adsorbent for the separation and analysis of trace volatile formaldehyde in aquatic products. Structural and morphological characteristics of the MoO 3 /polypyrrole intercalative adsorbent were investigated by a series of characterization methods. The MoO 3 /polypyrrole sampling adsorbent possessed a higher sampling capacity and selectivity for polar formaldehyde than commonly used commercial adsorbent Tenax TA. Finally, the MoO 3 /polypyrrole adsorbent was packed in the thermal desorption tube that was directly coupled to gas chromatography with mass spectrometry for the analysis of trace volatile formaldehyde in aquatic products. Trace volatile formaldehyde from real aquatic products could be selectively sampled and quantified to be 0.43–6.6 mg/kg. The detection limit was achieved as 0.004 μg/L by this method. Good recoveries for spiked aquatic products were achieved in range of 75.0–108% with relative standard deviations of 1.2–9.0%.
研究领域:
分析化学
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食品科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Jie Ren,Yuan Yu,Yanning Qu,Dongfeng Sun,Wenhui Chu,Qingmei Su,Linyin Huang,Bingshe Xu
Z-scheme photocatalyst was researched in recent years due to its bionic electron transfer structure, while there were still challenges on amount of electron-hole pairs and preservation of redox ability in above systems. In this work, a new dual Z-scheme MoO 3 /ZnIn 2 S 4 /black phosphorus quantum dots (MZBP) heterojunction was constructed to solve above problems and employed for photocatalytic hydrogen (H 2 ) evolution. According to the results, the H 2 generation efficiency of MZBP reached to 5.45 mmol/g/h under visible light irradiation, which were 10 and 1.6 times higher than that of pure ZnIn 2 S 4 and MoO 3 /ZnIn 2 S 4 (MZ) material, respectively. The apparent quantum yield (AQY) of MZBP was calculated as 13.2% at 420 nm, indicating its high energy conversion property. In general, the enhanced separation ability of photo-induced carriers and large redox surfaces of dual Z-scheme MZBP system played important roles for enhancement of H 2 evolution. According to the high-efficiency H 2 evolution performance and significant dual Z-scheme mechanism, the novel heterojunction was promising for more applications in photoelectric fields.
研究领域:
材料科学
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能源化学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Storage
·
2024
·
IF 8.9
Min Sun,Zhijun Liang,Rui Zhang,Kai Zhang,Kai kai Ba,Yanhong Lin,Dejun Wang,Tengfeng Xie,Yu Zhang
Recently, constructing heterostructures at the working electrode has emerged as a promising technique in energy storage. This approach utilizes the interfacial energy level difference between two semiconductors to enhance charge transfer and improve Li + diffusion kinetics. In this work, we employed an in-situ hydrothermal method to successfully fabricate TiO 2 /MoO 3 heterostructured electrodes. The resulting interface driving force of approximately 0.54 V exhibited a significant enhancement in charge transfer and demonstrated superior Li + storage performance compared to individual MoO 3 electrodes. Additionally, the incorporation of TiO 2 effectively reduced volume expansion, enhancing the stability of the electrode material. As expected, the heterostructure electrode TiO 2 /MoO 3 (x = 10) exhibits the highest specific capacitance of 606.36 F·g −1 . Our further fabricated asymmetric supercapacitor TiO 2 /MoO 3 (x = 10)//PPy device presents an energy density of 42.28 Wh·kg −1 , which is 1.57-fold higher than that of the MoO 3 //PPy device. This study introduces a methodology that enhances the efficiency and accessibility in the process of creating electrode materials, thereby offering a more streamlined and user-friendly avenue for the advancement of supercapacitor.
研究领域:
材料科学
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电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED MATERIALS
·
2025
·
IF 26.8
Meng Cai,Wei Liu,Tiankai Zhang,Pengfei Yan,Yuxuan Li,Weiqian Kong,Hangjuan Wu,Zongwei Chen,Zhenkun Gu,Lin Dong,Qun Xu,Yanlin Song,Junjie Ma,Chongxin Shan,Feng Gao
All-inorganic CsPbX 3 (X = I, Br, Cl) perovskites emerged as a crucial material for addressing the stability bottleneck due to their exceptional resistance to both light-thermal stress. However, their performance is limited by adverse optoelectronic dissipation arising from inadequate photon conversion and chaotic carrier energetics. Herein, the mechanism of the unique nonlinear plasmonic effect in van der Waals 2D MoO 3-x is elucidated, which is mediated by electronic intermediate states. It demonstrates that the 2D MoO 3-x serves as a light-capture-antenna in heterodimensional CsPbX 3 -MoO 3-x optically coupled system, contributing to the accumulation the optical field energy on the nanoscale and resulting in a remarkable 59% increase in photon convergence. Additionally, facet-oriented carrier channels can be established through heteroepitaxy along matched Mo-O octahedron. This optoelectrical-bimodal-coupling engineering combined with a bifacial light-harvesting configuration yields a bifacial equivalent efficiency of 27.33%, which stands as the supreme performance in all-inorganic perovskite photovoltaics. Graphical This remarkable work combines supercritical CO 2 chemical engineering, two-dimension plasmon photophysical science, and perovskite photovoltaic technology. It introduces novel concepts like broad - spectrum coupled photon absorption, the intermediate - localized - states model, and optoelectrical - bimodal - coupling engineering. It aims to combat optoelectronic dissipation and enhance energy harvesting via a heterodimensional van der Waals optically coupled system.
研究领域:
光伏技术
·
等离激元学
·
纳米光子学
·
材料科学
·
光电子学
·
钙钛矿太阳能电池
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固体物理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Micromachines
·
2019
·Vol. 10
·期 7
·459
·
IF 2.426
Yuanming Zhou,Sijiong Mei,Dongwei Sun,Neng Liu,Wuxing Shi,Jiahuan Feng,Fei Mei,Jinxia Xu,Yan Jiang,Xianan Cao
High efficiency perovskite light-emitting diodes (PeLEDs) using PEDOT:PSS/MoO3-ammonia composite hole transport layers (HTLs) with different MoO3-ammonia ratios were prepared and characterized. For PeLEDs with one-step spin-coated CH3NH3PbBr3emitter, an optimal MoO3-ammonia volume ratio (0.02) in PEDOT:PSS/MoO3-ammonia composite HTL presented a maximum luminance of 1082 cd/m2and maximum current efficiency of 0.7 cd/A, which are 82% and 94% higher than those of the control device using pure PEDOT:PSS HTL respectively. It can be explained by that the optimized amount of MoO3-ammonia in the composite HTLs cannot only facilitate hole injection into CH3NH3PbBr3through reducing the contact barrier, but also suppress the exciton quenching at the HTL/CH3NH3PbBr3interface. Three-step spin coating method was further used to obtain uniform and dense CH3NH3PbBr3films, which lead to a maximum luminance of 5044 cd/m2and maximum current efficiency of 3.12 cd/A, showing enhancement of 750% and 767% compared with the control device respectively. The significantly improved efficiency of PeLEDs using three-step spin-coated CH3NH3PbBr3film and an optimum PEDOT:PSS/MoO3-ammonia composite HTL can be explained by the enhanced carrier recombination through better hole injection and film morphology optimization, as well as the reduced exciton quenching at HTL/CH3NH3PbBr3interface. These results present a promising strategy for the device engineering of high efficiency PeLEDs.
研究领域:
材料科学
·
光电工程
✓ 已验证
DOI
高影响因子
MATERIALS RESEARCH BULLETIN
·
2025
·
IF 5.7
Litao Han,Hong Liu,Chen Lu,Yuanzhi Wei,Fanjun Kong
Molybdenum trioxide (MoO 3 ) possesses unique layered structure with high theoretical capacity and good environmental friendliness, which has been widely investigated as a potential anode material. Herein, MoO 3 nanosheets anchored in N-doped reduced graphene oxide (MoO 3 /NG) composite was constructed and prepared through hydrothermal reaction and post-calcination. The introduction of NG matrix can enhance the electronic conductivity and accelerate reaction kinetics of the MoO 3 , and solve the problem of severe capacity decay caused by its volume changes. MoO 3 /NG composite can deliver superior cycling performance (900.2 mAh g −1 at 0.2 Ag −1 after 100 cycles and 407.5 mAh g −1 at 10.0 Ag −1 after 500 cycles) and fast reaction kinetics with high diffusion coefficients and low charge transfer resistances. Moreover, the excellent electrochemical performance of the full battery lays a solid foundation for subsequent commercial application research.
研究领域:
材料科学
·
纳米技术
·
电化学
·
储能
✓ 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）