Journal of Materials Chemistry C
·
2016
·Vol. 5
·期 2
·427-433
·
IF 5.066
Rongguo Wang,Xiaolong Lu,Lifeng Hao,Weicheng Jiao,Wenbo Liu,Jian Zhang,Feng Yuan,Fan Yang
Orthorhombic molybdenum trioxide (α-MoO3) as one kind of potential inorganic photochromic material shows a slow response, poor reversibility and monotonic coloration. Here, we provide an efficient way to improve and tune the photochromism of MoO3. Novel inorganic–organic hybrid composites were successfully prepared by intercalating n-butylamine into the layer space of α-MoO3 and enhanced photochromic properties such as a fast response, superior reversibility, and good stability were achieved. Meanwhile, the solutions of as-prepared hybrids showed solvent-dependent discoloration due to the hole scavenger effect of ethanol. A reversible transformation between an intermediate state and an enhanced, but stable state was realized by switching irradiation. The improved photochromism caused the solutions of hybrids to show diverse discoloration varying from yellow to green to blue color.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
ACTA PHYSICO-CHIMICA SINICA
·
2015
·Vol. 31
·期 7
·1413-1420
·
IF 0.852
WU Na,LUO Qun,WU Zhen-Wu,MA Chang-Qi
The high-temperature thermal stability of solution-processed polymer solar cells is a key issue that determines the feasibility of further thermal encapsulation processes, such as thermal lamination or hightemperature atomic layer deposition. In this article, polymer solar cells with
poly(3, 4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT:PSS) or MoO3 as the anode buffer layer (ABL) and ZnO or LiF as the cathode buffer layer (CBL) were fabricated with a device structure of indium tin oxide (ITO)/ABL/poly(3-hexylthiophene): phenyl- C61- butyric
acid methyl ester (P3HT:PC61BM)/CBL/Al. Device performances, especially the hightemperature thermal stability of the devices, were studied in detail. The results indicated that the thermal stability of the organic solar cells was highly dependent on the buffer layer material. Devices
with MoO3 as ABL and ZnO as CBL showed high thermal stability at a temperature of 120-150 , which ensures the possibility of subsequent thermal processing. In addition, the use of ZnO as the cathode buffer layer could also improve longterm device stability.
研究领域:
材料科学
·
能源科学
✓ 已验证
DOI
高影响因子
Catalysts
·
2020
·Vol. 10
·期 3
·306
·
IF 3.52
Chunling Wu,Yang Luo,Kai Zhao,Xiaobing Yu,Xian Zhang,Xuqiang Guo
In this paper, direct coal liquefaction residue was prepared from Shen-dong coal, and the solubility of the residue in five organic solvents was studied. Then, an experimental device was set up to recover molybdenum (Mo) compounds from the direct coal liquefaction residue after extraction, and the influences of sublimation temperature and duration on recycling efficiency were examined. The recycled Mo-based products were characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), and a thermal analyzer. The results reveal that the optimum extraction conditions were obtained through ultrasonic extraction with a quinoline solvent and the highest recycling efficiency occurred for sublimation at 900 °C for 30 min. The recycled products are identified to be α-MoO3crystals. Moreover, the α-MoO3crystal is thermally stable before the temperature reaches its melting point.
研究领域:
化学工程
·
材料科学
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry C
·
2020
·Vol. 8
·期 41
·14409-14422
·
IF 7.059
Xingyue Liu,Xianhua Tan,Zhiyong Liu,Xuning Zhang,Tielin Shi,Guanglan Liao
CsPbBr3 photodetectors (PDs) are attracting tremendous attention for their superior properties, such as ultrafast light response and high chemical stability. However, the widely-used spin-coating technique involved in the preparation process of CsPbBr3 PDs restricts the construction of large-scale PD arrays, making it challenging for their applications in high-resolution image sensing. Here, we demonstrate fully vapor-deposited CsPbBr3 PDs with all the functional layers deposited through an evaporation route. The employment of an inexpensive copper(II) phthalocyanine (CuPc) hole conductor and the abandonment of the electron conductor can significantly decrease the whole production costs. An ultrathin MoO3 buffer layer is further introduced to passivate the defect densities of the CsPbBr3 perovskite and tailor the band alignment of the whole device. The reduced interface energy barrier and non-radiative recombination loss of the MoO3-modified devices are revealed by both experimental characterization and theoretical density functional theory (DFT) analysis. The best-performing MoO3-modified CsPbBr3 PD achieves an ultrafast response time of 0.96 μs, an ultrahigh on/off ratio of 1.17 × 106 and a detectivity of 5.22 × 1012 Jones at 0 V bias voltage. This performance is one of the best among all the self-powered electron/hole-conductor-free perovskite PDs. A large-area (57.8 cm2) image sensor comprising 25 × 25 CsPbBr3 PD arrays is further fabricated. Owing to the intrinsic advantages of the evaporation technique in depositing large-area and uniform films, the as-designed 625-pixel sensor exhibits a salient imaging capability. Our work opens up new avenues for the mass production of cost-effective, large-area and high-performing CsPbBr3 PD arrays for applications in image sensing.
研究领域:
材料科学
·
电子工程
·
光学
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2019
·Vol. 15
·期 38
·1902801
·
IF 10.856
Juehan Yang,Ruilong Shi,Zheng Lou,Ruiqing Chai,Kai Jiang,Guozhen Shen
The development of noncontact humidity sensors with high sensitivity, rapid response, and a facile fabrication process is urgently desired for advanced noncontact human–machine interaction (HMI) applications. Here, a flexible and transparent humidity sensor based on MoO 3 nanosheets is developed with a low-cost and easily manufactured process. The designed humidity sensor exhibits ultrahigh sensitivity, fast response, great stability, and high selectivity, exceeding the state-of-the-art humidity sensors. Furthermore, a wearable moisture analysis system is assembled for real-time monitoring of ambient humidity and human breathing states. Benefiting from the sensitive and rapid response to fingertip humidity, the sensors are successfully applied to both a smart noncontact multistage switch and a novel flexible transparent noncontact screen for smart mobile devices, demonstrating the potential of the MoO 3 nanosheets-based humidity sensors in future HMI systems.
研究领域:
材料科学
·
电子工程
·
人机交互
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NANOTECHNOLOGY
·
2019
·Vol. 31
·期 5
·055502
·
IF 3.399
Leilei Lan,Xiangyu Hou,Yimeng Gao,Xingce Fan,Teng Qiu
As a powerful analytical tool of molecular detection, surface-enhanced Raman spectroscopy (SERS) has attracted great attention in varied fields. However, it has seriously impeded the development of SERS that the preparation process is generally complicated and traditional substrates lack eco-friendliness, economy and flexibility. Herein, we fabricated the inkjet-printed paper-based semiconducting SERS substrates for the first time via an inexpensive office inkjet printer with representative two-dimensional MoO3−x nanosheets ink. Compared with conventional substrates, these paper-based semiconducting substrates not only could meet the requirements of simple and large-scale preparation, but also realize efficient sample collection by merely swabbing the surface. We obtained the detection limit concentration of rhodamine 6G as low as 10–7 M. Furthermore, these flexible paper-based substrates were successfully applied to detect crystal violet and malachite green on the fish surface by swabbing. With immense potentiality in practical applications, the inkjet-printed paper-based semiconducting SERS substrates are expected to open a new prospect for SERS.
研究领域:
分析化学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2025
·Vol. 51
·期 14
·19129-19137
·
IF 5.6
Qianqian Guo,Zhengfang Yang,Qisheng Wang,Qing Wang,Guanbin Wen,Bin Zhang
Bacterial infections pose a significant challenge to human life and health safety. However, the advent of two-dimensional (2D) Nanomaterials has opened new avenues for combating these pathogens. Herein, we prepare molybdenum (Mo)-doped CeO 2 composites via a hydro-thermal method. Physico-chemical properties of the composites are analysed using scanning electron microscopy (SEM), X-ray diffraction (XRD) and X-ray photo-electron spectroscopy (XPS). We observe that the morphology of the composites significantly changes with decreasing Mo content, with a gradual transition from the initial spherical shape (20 % M–C) to lamellar nano-flower (1 % M–C). Sharp, pointed edges of these structures are demonstrated to exert a significant damaging effect on bacteria. Results of EDS , XRD and XPS confirm the successful preparation of the material. Mechanical damage sterilisation is identified to be the primary antibacterial mechanism of the 1 % M–C composite material, as evidenced by masking-agent experiments, which correlates with the material's SEM results as well. The 1 % M–C composite demonstrates a sustained antibacterial effect throughout the 10-day water treatment cycle experiment, indicating that the 1 % M–C composite material has a promising potential for application in water treatment.
研究领域:
材料科学
·
纳米技术
·
环境工程
·
抗菌材料
✓ 已验证
产品关联
DOI
高影响因子
Nanomaterials
·
2025
·Vol. 15
·期 13
·1033
·
IF 4.3
Kai Liu,Wengui Jiang,Liang Zhou,Yinkang Zhou,Minghui Hu,Yuchen Geng,Yiyuan Zhang,Yi Qiao,Rongming Wang,Yinghui Sun
Two-dimensional (2D) material-based resistive random-access memory (RRAM) has emerged as a promising solution for neuromorphic computing and computing-in-memory architectures. Compared to conventional metal-oxide-based RRAM, the novel 2D material-based RRAM devices demonstrate lower power consumption, higher integration density, and reduced performance variability, benefiting from their atomic-scale thickness and ultra-flat surfaces. Remarkably, 2D layered metal oxides retain these advantages while preserving the merits of traditional metal oxides, including their low cost and high environmental stability. Through a multi-step dry transfer process, we fabricated a Pd-MoO3-Ag RRAM device featuring 2D α-MoO3as the resistive switching layer, with Pd and Ag serving as inert and active electrodes, respectively. Resistive switching tests revealed an excellent operational stability, low write voltage (~0.5 V), high switching ratio (>106), and multi-bit storage capability (≥3 bits). Nevertheless, the device exhibited a limited retention time (~2000 s). To overcome this limitation, we developed a Gr-MoO3-Ag heterostructure by substituting the Pd electrode with graphene (Gr). This modification achieved a fivefold improvement in the retention time (>104s). These findings demonstrate that by controlling the type and thickness of 2D materials and resistive switching layers, RRAM devices with both high On/Off ratios and long-term data retention may be developed.
研究领域:
纳米电子学
·
材料科学
·
非易失性存储器
·
神经形态工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nano Energy
·
2014
·
IF 10.211
Xu Xiao,Zehua Peng,Chi Chen,Chuanfang Zhang,Majid Beidaghi,Zhenhua Yang,Nan Wu,Yunhui Huang,Ling Miao,Yury Gogotsi,Jun Zhou
Molybdenum trioxide (MoO 3 ) is known as a promising pseudocapacitive material, but low conductivity limits its applications. Hydrogenation is demonstrated to increase the conductivity of MoO 3 and hence improve its electrochemical performance. Hydrogenated MoO 3 (MoO 3− x ) shows enhanced conductivity based on, both first principle calculations and single nanobelt measurements. Freestanding MoO 3− x /carbon nanotubes (CNT) composite films have been fabricated and showed much improved electrochemical performance compared to composites of CNT and as-synthesized MoO 3 (MoO 3 /CNT). Electrodes showed a specific capacitance of 337 F/g (based on the mass of MoO 3− x ) and a high volumetric capacitance of 291 F/cm 3 (based on the whole electrode) with excellent rate capability. Also we confirmed that the improved intercalation kinetics and the increased intercalation pseudocapacitance could be attributed to the higher electronic conductivity of MoO 3− x , which results in better and faster intercalations of Li + ions. This electrochemical behavior implies that MoO 3− x can serve as a very good negative electrode with high capacitance at high mass loading levels.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
ACS Catalysis
·
2026
·Vol. 16
·期 16
·16105-16114
·
IF 13.6
Li Tan,Meng Yang,Sun Bingyan,Shi Xiaopeng,Su Jing,Wang Keran,Wang Kaige
Elucidating the role of hydrogen spillover in regulating the active sites of metal-acid catalysts is essential to enable selective lignin hydrodeoxygenation toward aviation biofuels. Herein, we developed a MoO 3 /Co@CoO catalyst that enables efficient hydrodeoxygenation of lignin and its derivatives into aviation biofuels. The catalyst achieved nearly complete conversion of monomeric phenolic derivatives with ∼99% selectivity toward aviation-range hydrocarbons, while lignin afforded 16.3 wt % liquid hydrocarbons with 53.2% selectivity to aviation-range hydrocarbons under mild conditions. Structural analyses confirmed the formation of a Co@CoO core−shell architecture and Co−O−Mo interfacial bonding. Combined experimental and DFT studies revealed that Co 0 sites facilitate H 2 dissociation, whereas the Co−O−Mo interface enables accelerated hydrogen spillover from Co to Mo species, generating Brønsted acid sites (Mo−OH) and driving the selective formation of aviation biofuel components. This work offers fundamental insights into rationally controlling hydrogen spillover via interface engineering in metal-acid catalysts for lignin hydrodeoxygenation.
✓ 已验证
产品关联
DOI
高影响因子
TOPICS IN CATALYSIS
·
2026
·
IF 3.7
Chang Fei,Shen Min,Ruan Yunfei,Zhou Quan
In this paper, bifunctional mesoporous MoO 3 /ZrO 2 composite was prepared by co-precipitation method using cetyltrimethylammonium bromide (CTAB) as template agent for the photodegradation of tetracyclines (TCs). In order to study the catalyst performances, catalyst was characterized via XRD, Raman, SEM, TEM, BET, and Py-IR. Results showing that the catalyst is a bifunctional acid ( B and L) mesoporous catalyst with the MoO 3 monolayer embedded in the ZrO 2 , which specific surface area (SSA) is 69.0318 m 2 /g and an average pore size is 11.6948 nm. In order to study the degradation target of the MoO 3 / ZrO 2 for TCs, photodegradation of Isotope-labeled [2H 6 ]-TC and [2H 3 ]-DOX was detected by HPLC-MS. The results showed that the target of TC and DOX was concentrated on C4 of the A ring. The difference was that TC underwent oxidative dehydrogenation of α-dimethylamino group at the C4 position of the A ring, while DOX was demethylated at the C4 of the A ring, moreover, the-NH 2 of the C1 and the -OH of C3 formed a five-membered ring structure and removed H 2 O.
✓ 已验证
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2026
·
IF 19.7
Xingyu Li,Dongxu Wang,Shixuan Xia,Qin Zhang,Ruiting Li,Li Fang,Yingjie Jiang,Jiancong Liu,Chungui Tian
A solvent-induced facet engineering to construct an O V -rich plasmonic MoO 3-x . • Abundant Mo 5+ /O V induce strong LSPR, driving efficient photothermal conversion. • O V sites enhance reactant adsorption and trap electrons to drive H 2 O 2 activation. • Light-driven photothermal catalysis enables 99.15% DBT conversion in just 10 min. • Natural sunlight delivers 99.56% conversion within 12 min. Increasingly stringent global environmental regulations make ultra-low-sulfur fuel production urgent, but the energy-intensive nature of conventional oxidative desulfurization requires alternative technologies under mild and sustainable conditions. Herein, we report a solvent-induced facet engineering strategy to construct a plasmonic MoO 3-x catalyst enriched with oxygen vacancy (O V ), which enables efficient solar-driven photothermal oxidative desulfurization (ODS) without external heating. By leveraging the reductive nature and facet growth modulation of methanol, a flower-like MoO 3-x assembled with nanosheet predominantly exposing the (021) facet is synthesized, promoting abundant Mo 5 + /O V active sites. O V serves a dual role: it endows strong localized surface plasmon resonance (LSPR) for efficient light harvesting and localized heating, while functioning as active centers for reactant adsorption/activation and as electron traps to facilitate H 2 O 2 decomposition into •OH radicals. Under light excitation, the optimized catalyst achieves efficient light-driven heating (70 °C) and delivers 99.15% dibenzothiophene (DBT) conversion within 10 min, with a rate constant 73.8 times higher than that of conventional MoO 3 . This excellent performance is also achieved under natural sunlight (99.56% conversion within 12 min), demonstrating its practical feasibility. This work establishes a defect-engineering paradigm for plasmonic catalysts toward solar energy utilization in sustainable fuel purification. Download: Download high-res image (283KB) Download: Download full-size image A solvent-induced facet engineering strategy was employed to synthesize a plasmonic MoO 3-x nanosheets with predominantly exposed (021) facets, generating abundant Mo 5+ /O V active sites. O V serves a dual role: inducing strong LSPR for light harvesting and localized heating, while functioning as active centers for reactant adsorption/activation and electron traps to facilitate H 2 O 2 decomposition into •OH radicals. Under light excitation, the catalyst achieves 99.15% DBT conversion within 10 min (rate constant 73.8 times higher than MoO 3 ). This excellent performance is also achieved under natural sunlight (99.56% conversion within 12 min), demonstrating its practical feasibility.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）