JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2020
·Vol. 31
·期 20
·17461-17473
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IF 2.22
Bhattacharya Anish,Zhang Yin,Wu Haiyan,Chu Xiangfeng,Dong Yongping,Liang Shiming,Xu Jiaqiang,Chakraborty Amit K.
Due to its importance in human health and environmental monitoring, ethanol sensing has generated large research interest across the globe. In this work, we report a simple co-precipitation method to synthesize La-doped BaSnO 3 and evaluate its ethanol sensing properties. Electron microscopy and X-ray diffraction analyses revealed formation of crystalline BaSnO 3 having rod-like shape, few microns in length and 1–2 µm in width. The optimal sensing performance was achieved when operated at 220 °C for 4 wt% La-doped BaSnO 3 microrods for which a response as high as 48 was obtained against 100 ppm of ethanol exposure, whereas the undoped BaSnO 3 exhibited its best performance (although much lower response) at 260 °C. Multiple characterization techniques revealed that the enhancement of the sensor performance by incorporation of La was due to changes in the physico-chemical properties like specific surface area, oxygen content and electronic bandgap of the BaSnO 3 . The high repeatability, high selectivity to ethanol, fast response and recovery times, and low detection limit of 0.01 ppm suggest good potential for the 4% La-doped BaSnO 3 film as a low cost ethanol sensor.
研究领域:
材料科学
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环境监测
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化学工程
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DOI
高影响因子
ACS Applied Materials & Interfaces
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2023
·
IF 9.5
Fangyu Zhang,Yinlin Shen,Huanhuan Xu,Xiangyu Zhao
Bismuth metal is regarded as a promising magnesium storage anode material for magnesium-ion batteries due to its high theoretical volumetric capacity and a low alloying potential versus magnesium metal. However, the design of highly dispersed bismuth-based composite nanoparticles is always used to achieve efficient magnesium storage, which is adverse to the development of high-density storage. Herein, a bismuth nanoparticle-embedded carbon microrod (Bi⊂CM), which is prepared via annealing of the bismuth metal–organic framework (Bi-MOF), is developed for high-rate magnesium storage. The use of the Bi-MOF precursor synthesized at an optimized solvothermal temperature of 120 °C benefits the formation of the Bi⊂CM-120 composite with a robust structure and a high carbon content. As a result, the as-prepared Bi⊂CM-120 anode compared to pure Bi and other Bi⊂CM anodes exhibits the best rate performance of magnesium storage at various current densities from 0.05 to 3 A g–1. For example, the reversible capacity of the Bi⊂CM-120 anode at 3 A g–1 is ∼17 times higher than that of the pure Bi anode. This performance is also competitive among those of the previously reported Bi-based anodes. Importantly, the microrod structure of the Bi⊂CM-120 anode material remained upon cycling, indicative of good cycling stability.
研究领域:
材料科学
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电化学
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DOI
高影响因子
Fundamental Research
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2024
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IF 5.7
Jiaojiao Zhang,Jing Liu,Wen Hu,Xue Jiang,Long Zhou,Yumin Tang,Zhong Lin Wang,Rusen Yang
Piezoelectric biomaterials have shown good energy conversion capability and promising future for biomedical applications. However, their performance is still limited by their relatively low piezoelectric constant, and increasing the power by connecting multiple devices is restricted by the challenge of synchronizing all individual devices. Herein, we develop double-layer FF peptide microrods arrays with independently controlled polarization in each layer. The resultant piezoelectric nanogenerator showed much enhanced performance because the synchronous deformation and the appropriate polarization directions of microrods in each individual layer enable the constructive contribution of voltage and current output from all microrods. The nanogenerator generated an open circuit voltage of 2.05 V in a serial connection mode, which doubles the output from a single-layer device. When two layers are connected in parallel and the polarization is in a head-to-head configuration, a twofold increase in the current output is also achieved. This work provides a new strategy to design integrated devices with much improved performance for wearable technology and therapeutic systems.
研究领域:
生物材料学
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纳米技术
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能源科学
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2019
·
IF 4.175
Changlin Yu,Fanyun Chen,Zhen Liu,Kai Yang,Hongbing Ji,Dehao Li,Wenyu Xie,Shaoyu Li
A series of robust AgCl/WO 3 composite microrods (0.1–0.2 μ m) with different Ag/W molar ratios (0.25, 0.50, 0.75, 1.00, 1.25) were synthesized via hydrothermal-calcination process. The obtained samples were characterized by XRD , SEM, TEM , FT-IR, UV-vis DRS, PL , BET, Raman, transient TPRT and EIS . The photocatalytic test for organic dyes degradation showed that AgCl/WO 3 microrods possess much higher photocatalytic activities and stability than bare AgCl and WO 3 . With optimal AgCl/WO 3 molar ratio (0.75 ∼ 1), 2 ∼ 5 times increase in dye decomposition efficiency was obtained over AgCl/WO 3 microrods. The formation of intimate WO 3 /AgCl heterojuction (interface) largely enhanced the separation efficiency of photogenerated carriers. This investigation suggested that AgCl/WO 3 microrods could a promising photocatalyst for environmental remediation.
研究领域:
材料科学
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环境科学
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产品关联
DOI
高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
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2021
·
IF 6.064
Jianzhi Wang,Hongliang Yu,Xianming Wang,Chen Chen,Shuaijie Li,Ning Cai,Weimin Chen,Yanan Xue,Hui Li,Faquan Yu
Constructing ordered hierarchical porous electrocatalysts while maintaining their high efficiency and stability for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) is highly desirable but still remains challenging. Herein, hierarchical tri-metal-based hollow nano/micro rod-on-rod array structures, including hydroxides and phosphates, are vertically grown on Cu foam by the cation-exchanging and anion exchanging approaches. Such ordered porous architecture, providing multi metal center, regular interconnection of macropore channel, large electrochemical surface area, small charge-transfer resistance, efficient mass transport and electron transfer for overall water splitting in alkaline media. These obtained hydroxide OER catalysts (CoMn LDH@Cu(OH) 2 /CF) and phosphide HER catalysts (CoMnP@Cu 3 P/CF) exhibited low onset potential, low Tafel slope, and prominent durability. Such excellent performance, ordered porous structure and simple preparation methods indicate that this study provides a new strategy for assembling promising catalysts for water splitting and other applications.
研究领域:
材料科学
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电化学
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DOI
高影响因子
Journal of Materials Chemistry C
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2019
·Vol. 7
·期 45
·14188-14197
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IF 6.641
Xiaohua Cheng,Ye Yuan,Lin Jing,Tianliang Zhou,Zhengxiao Li,Zhiwei Peng,Qing Yao,Jie Zhang,Jianxu Ding
There has been great interest in the use of cesium lead bromide (CsPbBr3), which is one of the most important members of the all-inorganic perovskite family, due to its superior optoelectronic performance and higher stability. Recently, it has been demonstrated that it is advantageous to use CsPbBr3 microrods and nanowires in photodetectors because of their higher crystallinity, low amount of defects, and easy control of carrier transport along a specific direction as compared to their counterparts of single crystals and thin films. However, there is a shortage of adequate investigations that describe how to control the growth of CsPbBr3 microrods and nanowires so that they retain the optoelectronic performance of single CsPbBr3 microrods. Therefore, we are reporting how to control the growth of orientated dispersive super-long CsPbBr3 microrod single crystals (CsPbBr3 MSCs) via a simple anti-solvent method. The crucial factor in controlling the growth of dispersive super-long CsPbBr3 MSCs is the regulation of the rapid nucleation rate and slowing of the growth rate via controlling the diffusion velocity of anti-solvent methanol. We also reveal the growth mechanism of CsPbBr3 MSCs as layer-by-layer growth that originates from the 2D nucleus. The CsPbBr3 MSCs are revealed grew in the direction of [010], with the (101) facet exposed. Moreover, photodetectors based on one CsPbBr3 MSC were fabricated, and the detectivity (D) and the on/off ratio were as high as 3.67 × 1012 Jones and 988, respectively, suggesting a very strong optoelectronic response as photodetectors. The mechanism that the Cs ions and Cs vacancies use to move to negative and positive electrodes along the channels constructed by [PbBr6]4− in the [010] direction of the CsPbBr3 MSC (101) facet was revealed, after activation by the applied electrical field, which is beneficial to enhance the optoelectronic response but does not reduce the device stability.
研究领域:
材料科学
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光电材料
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纳米技术
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DOI
高影响因子
Biomaterials Advances
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2025
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IF 6
Yilong Xing,Zunhao Zhang,Xiangshan Yang,Shengnan Liu,Xiaojing Shen,Ge Cheng,Juan Li,Rui Zhang
The capture of circulating tumor cells (CTCs) is important for the early diagnosis and prognosis of tumor patients. The most related research is mainly focused on epithelial cell adhesion molecule (EpCAM)-positive CTCs. The capture of EpCAM-negative cells such as HeLa cells need to develop novel strategies to solve. On the other hand, new substrates are needed developed to effectively capture CTCs. In this work, 1,5-diaminoanthraquinone microrods (DAAQ-R) films with different morphologies are prepared via high-temperature sublimation or room-temperature evaporation. The microrod films are modified with polyethyleneimine (PEI) for forming DAAQ-R/PEI films with positive surface potentials. DAAQ-R/PEI films are then used as substrates for capturing HeLa cells. This research shows that the cell capture efficiencies are related to the morphologies of the DAAQ-R/PEI films due to the surface potentials of the substrates depending on their morphologies. Furthermore, to enhance the capture efficiency of HeLa cells, DAAQ-R/PEI films are functionalized with aminophenylboronic acid (APBA) to generate DAAQ-R/PEI/APBA film. The APBA can interact with sialic acid (SA) on the surfaces of cancer cells, resulting in that the capture efficiency of DAAQ-R/PEI/APBA film to HeLa cells reached 85.6 %. This substrate can be used to isolate CTCs in clinic blood samples of cancer patients. This study provides valuable guidance for isolation of CTCs and further study of tumors.
研究领域:
生物医学工程
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癌症诊断
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材料科学
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纳米技术
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细胞捕获技术
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产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
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2020
·
IF 8.758
Xin Cui,Yu Cui,Meiling Chen,Rui Xiong,Yucheng Huang,Xiaowang Liu
We present that activation of CoMoO4-based microrod arrays in KOH (1.0 M, 2 h) allows us to significantly improve their electrochemical hydrogen evolution performance in phosphate buffer solution (1.0 M, pH = 7.1). The activation mechanism originates from the conversion of the surface layer of CoMoO4 to Co(OH)2 nanosheets, together with the release of Mo3O102– ions into the activation solution. Our experimental and calculated results suggest that the Co(OH)2 nanosheets on the surface of the CoMoO4-based microrod arrays show the ability to improve water molecule disassociation and stabilize the catalytic activity of the two-component catalysts by decreasing their overpotentials in the hydrogen evolution reaction. When extending this strategy to activate P-doped CoMoO4 with a low hydrogen absorption free energy, we report the synthesis of a new class of superior neutral electrochemical hydrogen evolution catalysts of P-doped CoMoO4–Co(OH)2 microrod arrays. We show that a low overpotential of about 30 mV (obtained from bulk electrolysis) is required to deliver a current density of 10 mA cm–2 in the neutral media. By making use of our catalyst and NiFe double hydroxide as cathodic and anodic electrodes, respectively, we fabricated a two-electrode electrolysis device for neutral overall water splitting. Our results showed a low cell voltage of 1.78 V (obtained from bulk electrolysis) that is needed for delivering a current density of about 10 mA cm–2 in the neutral electrolyte, even outperforming the state-of-the-art catalyst combination of Pt/C∥RuO2 in terms of catalytic activity and stability. These findings suggest that our strategy may be utilized as a facile but useful strategy toward the activation of molybdate catalysts to improve their HER performance in both basic and neutral media.
研究领域:
材料科学
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电化学
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可再生能源
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2020
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IF 4.65
Jun Cao,Haichao Li,Ruitong Zhu,Li Ma,Kechao Zhou,Qiuping Wei,Fenghua Luo
Increasing energy demands have accelerated the exploration of renewable energy, and H 2 is a promising substitute for nonrenewable energy sources. The electrocatalytic hydrogen evolution reaction (HER) is a convenient, stable, and eco-friendly route for producing hydrogen whose performance can be enhanced via the rational structure design of catalysts and the replacement of the anodic oxygen evolution reaction (OER) with the urea oxidation reaction (UOR). Herein, 3D hierarchically structured NiMo microrod arrays was constructed on Ni foam where ZnO served as core and support (NiMo@ZnO/NF), which showed a high activity when used as a bifunctional electrocatalyst for the HER and UOR. It only required potentials of −110 mV and 1.405 V to deliver a current density of 10 mA cm −2 towards HER and UOR, respectively. NiMo@ZnO/NF was used as both the anode and cathode to construct a symmetric electrolyzer that was used for water splitting and urea electrolysis. The cell voltage decreased from 1.718 V to 1.549 V at 10 mA cm −2 after substituting the OER with UOR. Finally, the coupled NiMo@ZnO/NF || NiMo@ZnO/NF system can be driven by an AA battery in an alkaline solution containing urea, which demonstrates a practical and effective method for producing hydrogen assisted by anodic urea oxidation.
研究领域:
能源科学
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材料科学
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
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2023
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IF 9.5
Hao Zong,Min Wang,Weinan Chen,Zhong-Da Zhang,Jia-Wei Cai,Cong Shen,Li-Xing Li,Shui-Long Kang,Yuan Fang,Gang Zhou,Sui-Dong Wang
A comprehensive comparison of organic single crystals based on a single material but with different dimensions provides a unique approach to probe their carrier injection mechanism. In this report, both two-dimensional (2D) and microrod single crystals with the same crystalline structure of an identical thiopyran derivative, 7,14-dioctylnaphtho[2,1-f:6,5-f′]bis(cyclopentane[b]thiopyran) (C8-SS), are grown on a glycerol surface with the space-confined method. Organic field-effect transistors (OFETs) based on the 2D C8-SS single crystal exhibit superior performance compared with those based on the microrod single crystal, particularly in their contact resistance (RC). It is demonstrated that the resistance of the crystal bulk in the contact region plays a key role in RC of the OFETs. Thus, among the 30 devices tested, the microrod OFETs typically appear contact-limited, whereas the 2D OFETs possess significantly reduced RC arising from the tiny thickness of the 2D single crystal. The 2D OFETs show high operational stability and high channel mobility up to 5.7 cm2/V·s. The elucidation of the contact behavior highlights the merits and great potential of 2D molecular single crystals in organic electronics.
研究领域:
材料科学
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有机电子学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
·
IF 9.7
Zhichao Li,Yuhong Du,Gaoshuang Zuo,Jin Wang,Chao Wang,Li Guo,Yanzhong Wang
Metal-organic frameworks (MOFs) have been a hot topic as oxygen evolution reaction (OER) electrocatalysis owing to their superior specific surface area, plentiful metal active sites and modifiable morphology and composition. Nonetheless, the low electronic conductivity, restricted active sites and lack of structural robustness in MOFs impede their efficacy as catalysts in water electrolysis processes. Herein, nickel thiophenedicarboxylic framework@Ni 3 S 2 (Ni-TDC@Ni 3 S 2 ) composites were prepared on a nickel foam substrate via a two-step hydrothermal method. The results indicate that Ni 3 S 2 not only regulates the morphology and local electronic structure of Ni-TDC, but also enhances the structural stability, which leads to the superior OER performance with an overpotential of 220 mV at 10 mA cm −2 , and the Tafel slop of 50.76 mV dec −1 . Furthermore, the assembled overall water electrolysis device with Ni-TDC@Ni 3 S 2 and RuNi-TDC as anode and cathode electrodes requires the voltage of only 1.50 V at a current density 10 mA cm −2 , and it can run stably for more than 70 h. This study provides a new idea for enhancing the electronic conductivity of MOF-based electrocatalysts for efficient water oxidation.
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DOI
PubMed
高影响因子
DALTON TRANSACTIONS
·
2020
·Vol. 49
·期 37
·13152-13159
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IF 4.174
Feixiang Jiao,Jinhui Li,Jinlei Wang,Yu Lin,Yaqiong Gong,Xiaofei Jing
It is of extreme importance to design efficient electrocatalysts for hydrogen evolution reaction (HER), which is considered as a promising approach to provide efficient and renewable clean fuel (hydrogen). Tuning the electronic structure through heteroatom doping demonstrates one of the most effective strategies to promote the electrocatalytic performance of HER. Herein, phosphorus-doping modulation is utilized to fabricate monoclinic P-CoMoO4 with optimized electron structure supported on nickel foam (P-CoMoO4/NF) for alkaline HER via a facile hydrothermal method, followed by low-temperature phosphidation. Notably, P-CoMoO4/NF shows outstanding electrocatalytic performance for HER in 1 M KOH with a low overpotential of 89 mV at 10 mA cm−2, a remarkable Tafel slope value of 59 mV dec−1, and excellent 24 h-long stability. The excellent catalyst activity and stability merits of P-CoMoO4/NF are comparable to the reported highly efficient non-precious metal HER electrocatalysts and could be applied as a powerful electrocatalyst in water electrolysis. This work provides a superior synthesis strategy for the effective design and rational fabrication of low-cost, highly active, and highly stable non-precious metal HER electrocatalysts for electricity-to-hydrogen applications.
研究领域:
材料科学
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电化学
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可再生能源
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产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）