SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2024
·
IF 6.3
Peng Xiang,Congming Tang,Kai Ma,Xinli Li
Solar-driven interfacial evaporation for sustainable production of clean water from seawater and organic wastewater is viewed as a cutting-edge and practical technology to solve the shortage of fresh water. Here, we provide a novel strategy for constructing oxygen vacancy-rich In 2 O 3 /TiO 2 composite to apply in water purification . It is found that oxygen vacancy enhances light absorbance, reduces light reflection, and decreases the thermal conductivity , being beneficial for photothermal conversion and heat confinement. On the other hand, oxygen vacancy-rich In 2 O 3 /TiO 2 composite offers an excellent photocatalytic degradation, which can improve the quality of the purified water and keep surface and interface clean, and thus enhance durability of photothermal material. To compare with In 2 O 3 /TiO 2 , In 2 O 3 /TiO 2 * with rich oxygen vacancies markedly enhances the evaporation rate of pure water from 1.04 to 1.51 kg m −2 h −1 under 1 sun illumination , corresponding photothermal conversion efficiencies of 58.6% and 90.3%, respectively. Furthermore, the evaporator constructed with In 2 O 3 -TiO 2 * displayed 1.47 and 1.49 kg m −2 h −1 for seawater and lake water , respectively, close to pure water under 1 sun illumination. Besides, this evaporator also offered an excellent purification and photocatalytic degradation for organic wastewater during the solar-driven evaporation. Importantly, this evaporator also could synergistically generate electricity, achieving a maximum electrical power of 1.23 W m −2 under 1 sun. This work demonstrates the preponderance of the oxygen vacancy-rich material, and expands the application of the defected In 2 O 3 /TiO 2 composite in solar-driven interfacial evaporation.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2020
·
IF 7.1
Baoqing Han,Jiuhong Wang,Wanying Yang,Xiaowei Chen,Hairong Wang,Jialuo Chen,Cheng Zhang,Jianhai Sun,Xueyong Wei
Isoprene is a typical biomarker for advanced fibrosis and can be used to screen and grade chronic liver disease (CLD). To detect trace isoprene, the high specific surface area (77.38 m 2 /g), porous flower-like In 2 O 3 hierarchical microsphere material was prepared by simple hydrothermal method. In addition, the sensor based on synthetic flower-like In 2 O 3 microspheres was prepared and gas sensing properties were investigated. The results showed that flower-like In 2 O 3 nanomaterials had the highest response to isoprene at 190 °C. The response time was 53 s and repeatability was good. The relatively low operating temperature (190 °C) could extend the working life and also facilitate the portable application of the sensor. Meanwhile, the sensor exhibited selectivity over other typical biomarkers (ammonia, ethanol, hydrogen, and carbon monoxide). The unmodified pure flower-like In 2 O 3 material could detect 5 ppb of isoprene at 190 °C and the logarithm of the response had good linear relationship with the logarithm of the concentration. Thus, this flower-like In 2 O 3 material was promising to be developed into the portable breath isoprene detector that could be integrated into a micro system for noninvasive rapid screening and grading of CLD.
研究领域:
材料科学
·
医学诊断
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2022
·
IF 10.319
Yidu Wang,Jingnan Ding,Jun Zhao,Jiajun Wang,Xiaopeng Han,Yida Deng,Wenbin Hu
Constructing nanohybrids with a synergistic effect using multi-components and specific micro/nanostructures can significantly enhance their electrocatalytic activity. In this work, we fabricated an In 2 O 3 ⊃NC@GO nanohybrid, in which In 2 O 3 nanoparticles (NPs) were encapsulated by an N-doped carbon (NC) shell and supported on graphene. The multi-components in In 2 O 3 ⊃NC@GO synergistically optimize the structural and electronic properties of the material. The particle size and dispersion of In 2 O 3 NPs were optimized owing to the separation effect of the amorphous NC shell and graphene support. This separation effect exposes more number of active sites for the electrochemical reaction. Abundant oxygen vacancies exist in In 2 O 3 , leading to a stronger ability for the adsorption and activation of CO 2 . The NC shell inhibits the direct contact between the electrolyte and In 2 O 3 , which significantly suppresses competitive H 2 evolution. The charge transfer during the electrocatalysis process is also effectively enhanced due to the carbon components. The synergistic effect of multi-components in the In 2 O 3 ⊃NC@GO sample results in a significantly improved CO 2 reduction reaction performance with a high HCOO – Faradic efficiency (FE) of 91.2% and a current density of 40.38 mA cm –2 at –0.8 V obtained using a flow cell. The present work demonstrates that rationally designing nanohybrids with multifunctional components is an effective strategy for optimizing the structural and electrocatalytic properties of materials for energy conversion.
研究领域:
材料科学
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能源转换
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2016
·Vol. 27
·期 9
·9870-9876
·
IF 1.798
Liu Changbai,Wang Xuesong,Xie Feng,Liu Li,Ruan Shengping
Pure and Sm-doped In 2 O 3 porous nanotubes have been successfully fabricated by the single-capillary electrospinning method followed by calcination. The as-synthesized porous nanotubes were investigated by X-ray powder diffraction (XRD), energy-dispersive X-ray (EDX), scanning electron microscope (SEM), Raman spectra and X-ray photoelectron spectroscopy (XPS). It can be seen in SEM images that the surface of nanotubes is distributed with numerous pores. Gas sensing investigation reveals that Sm-doped In 2 O 3 porous nanotubes possess high-performance formaldehyde sensing properties. The response of gas sensors based on Sm-doped In 2 O 3 porous nanotubes was 54.37 towards 100 ppm formaldehyde at 240 °C, which was 5 times larger than that of pure In 2 O 3 porous nanotubes (10.87). The response and recovery times to 100 ppm formaldehyde were 9 and 40 s, respectively. Moreover, even at low concentration of 100 ppb formaldehyde, a detectable response of 2.1 can be observed. Furthermore, Sm-doped In 2 O 3 porous nanotube gas sensors have excellent selectivity to formaldehyde.
研究领域:
材料科学
·
化学
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2024
·
IF 11.2
Mengyao Xu,Fei Liu,Shike Liu,Jun Ma,Mengqin Yao,Xiaodan Wang,Jianxin Cao
Metal-based catalysts are prevalent in the CO 2 hydrogenation to methanol owing to their remarkable catalytic activity. Herein, Ru/In 2 O 3 catalysts with different morphologies obtained by doping Ru into In 2 O 3 with irregular, rod-like, and flower-like morphologies are used for catalytic CO 2 hydrogenation to methanol. Results indicate that the flower-like Ru/In 2 O 3 (Ru/In 2 O 3 -F) exhibits higher catalytic performance than Ru/In 2 O 3 with other morphologies, achieving a 12.9% CO 2 conversion, 74.02% methanol selectivity, and 671.36 mg MeOH ·h −1 ·g cat −1 methanol spatiotemporal yield. Furthermore, Ru/In 2 O 3 -F maintains its catalytic stability over 200 h at 5 MPa and 290 °C. The promotional effect mainly stems from the fact that electronic structure of Ru can be effectively adjusted by modulating the morphology of In 2 O 3 . The strong interaction between atomically dispersed Ru and In 2 O 3 -F enhances the structural stability of Ru, inhibiting the agglomeration of the catalyst during the reaction process. Furthermore, density-functional theory calculations reveal that highly dispersed Ru atoms not only perform efficient and rapid electronic gain and loss processes, facilitating the catalytic activation of H 2 into H intermediates. It also enables the generated reactive H to rapidly overflow to the surrounding In sites to participate in CO 2 reduction. These findings provide a theoretical basis for the development of high-performance catalysts for CO 2 hydrogenation.
研究领域:
催化
·
材料科学
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化学工程
·
理论化学
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2024
·
IF 8
Xinlei Li,Zhaoyi Zhang,Shupeng Sun,Nan Wang,Baoyu Huang,Xiaogan Li
Hierarchically structured In 2 S 3 @In 2 O 3 nanorods were synthesized via a two-step hydrothermal method. Compared to single-component In 2 O 3 based sensors, the as-developed In 2 S 3 @In 2 O 3 nanorods based chemiresistive-type sensor exhibited significantly enhanced response and reduced operating temperature. The sensor displayed a response of approximately 51.2 to 3 ppm NO 2 at 120℃, with a response time and recovery time of 76 and 48 seconds, respectively, and a detection limit of NO 2 concentration to 0.014 ppm. By constructing In 2 S 3 @In 2 O 3 heterojunctions, the optimal operating temperature has been effectively lowered from 160℃ to 120℃. The improved sensing performance is attributable to the nano-heterojunctions formed between In 2 S 3 and In 2 O 3 , which increase the specific surface area to provide additional active adsorption sites, and as well, prevent the shielding effect of surface-adsorbed oxygen on NO 2 . Density functional theory (DFT) calculations demonstrated that the introduction of heterojunctions of In 2 S 3 @In 2 O 3 enhances the adsorption energy and charge transfer between NO 2 and the sensing material.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2021
·
IF 7.46
Shendan Zhang,Yunan Wang,Fengdong Qu,Tiju Thomas,Minghui Yang
Indium oxide (In 2 O 3 ) nanocubes modified by ruthenium oxide (RuO 2 ) on the surface are successfully prepared through hydrothermal method , calcination and impregnation in turn. The sensing properties of RuO 2 -modified In 2 O 3 sensing material are significantly enhanced even with low loading amount. The response values of RuO 2 -modified In 2 O 3 sensing material to TXM vapor containing benzyl group (including toluene, xylene and mesitylene) increase rapidly when compared to various volatile organic compounds (VOCs). Therein the RuO 2 -modified In 2 O 3 sensor displays a 36-times increase in response value to mesitylene (100 ppm) in contrast to un-modified one at 255 °C. The optimum operating temperature (OOT) decreases obviously from 375 °C of pristine In 2 O 3 one. The gas sensing enhancement mechanism can be explained by electronic and chemical sensitization. However, the reason for selectivity change will be (temporarily) investigated further later.
研究领域:
材料科学
·
化学传感器
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2018
·
IF 3.779
Wenwen Ge,Yuhong Chang,Vinothkumar Natarajan,Zhenyu Feng,Jinhua Zhan,Xicheng Ma
Novel In 2 O 3 -SnO 2 hybrid sensing nanostructures with porous nature were successfully prepared and characterized by various techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS) and high resolution transmission electron microscopy (HRTEM). Gas sensing properties of the fabricated sensor based on the as-prepared In 2 O 3 -SnO 2 hybrid nanostructures were systematically investigated and compared with those of pure SnO 2 . The hybrid nanostructures containing 3% In 2 O 3 exhibit the highest response value of 30.7–100 ppm formaldehyde at 100 °C, which was 14 times higher than that of pure SnO 2 . Moreover, gas sensors based on the as-prepared In 2 O 3 -SnO 2 hybrid nanostructures also exhibit high stability and good selectivity for formaldehyde. The enhanced sensing performances of formaldehyde were mainly attributed to the formation of n-n heterojunctions and the synergistic interaction between In 2 O 3 and SnO 2 .
研究领域:
材料科学
·
纳米技术
·
传感器学
·
表面化学
·
功能材料
✓ 已验证
DOI
高影响因子
SENSORS
·
2022
·Vol. 23
·期 1
·148
·
IF 3.847
Ji Zhang,Xu Li,Qinhe Pan,Tong Liu,Qingji Wang
Hydrogen (H2) has gradually become a substitute for traditional energy, but its potential danger cannot be ignored. In this study, litchi-like g-C3N4/In2O3composites were synthesized by a hydrothermal method and used to develop H2sensors. The morphology characteristics and chemical composition of the samples were characterized to analyze the gas-sensing properties. Meanwhile, a series of sensors were tested to evaluate the gas-sensing performance. Among these sensors, the sensor based on the 3 wt% g-C3N4/In2O3(the mass ratio of g-C3N4to In2O3is 3:100) showeds good response properties to H2, exhibiting fast response/recovery time and excellent selectivity to H2. The improvement in the gas-sensing performance may be related to the special morphology, the oxygen state and the g-C3N4/In2O3heterojunction. To sum up, a sensor based on 3 wt% g-C3N4/In2O3exhibits preeminent performance for H2with high sensitivity, fast response, and excellent selectivity.Keywords:g-C3N4/In2O3;litchi-like;H2sensor;fast response;high selectivity
研究领域:
材料科学
·
传感器技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Omega
·
2020
·
IF 2.87
Qian Zhang,Shaopeng Wang,Hao Fu,Yinghui Wang,Kefu Yu,Liwei Wang
Triethylamine (TEA), a typical kind of volatile organic compound, is widely used as an industrial solvent, which is a threat to environment and human health. In this paper, a novel In2O3 nanocube gas sensing material with high sensing performances was synthesized through a simple one-pot hydrothermal method. The gas sensing test results are satisfactory such that the single phase of In2O3 nanocubes even exhibits a quite higher response of 12–10 ppm of TEA at a lower temperature (180 °C) than many conventional In2O3-based complexes and maintains high consistency in morphology and stability after the consecutive tests of 2 months. This work provides a facile and quite effective gas sensing material for TEA gas monitoring with high sensitivity and stability and good selectivity at lower working temperature that can be prepared in batch and further used as templates.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CRYSTAL RESEARCH AND TECHNOLOGY
·
2020
·Vol. 55
·期 11
·2000093
·
IF 1.169
Hongjun Chen,Zi Wang,Zeyang Xue,Chunhu Yu,Lizhai Pei,Chuangang Fan
A Bi 2 O 3 /In 2 O 3 heterojunction is successfully fabricated via a facile hydrothermal method using sodium bismuthate and indium nitrate as the source materials. The crystal structure, composition, micromorphology, and optical property of the Bi 2 O 3 /In 2 O 3 heterojunction are analyzed by X-ray diffraction, X-ray photoelectron spectroscopy, Fourier transform infrared spectrum, scanning electron microscopy, transmission electron microscopy, and solid ultraviolet-visible (UV-vis) diffuse reflectance spectra. The Bi 2 O 3 /In 2 O 3 heterojunction exhibits a remarkable photocatalytic degradation capacity for Rhodamine B, which is better than that of pure Bi 2 O 3 and In 2 O 3 . The photogenerated charges separation and transfer process of the Bi 2 O 3 /In 2 O 3 heterojunction follows a direct Z-scheme mechanism under UV–vis light irradiation. The trapping experiment indicates that oxidative radicals including •OH, h + , and •O 2 − play crucial roles in the photodegradation process. The outstanding photodegradation capacity is ascribed to spatially separated charge carriers, fast-charge transportation characteristic, and special bandgap structure of the Bi 2 O 3 /In 2 O 3 heterojunction. The introduction of H + and OH − ions into the reaction system promotes the formation of •OH and •O 2 − radicals, significantly enhancing the photodegradation rate of RhB. This study presents a new insight into the construction of the Z-scheme Bi 2 O 3 /In 2 O 3 heterojunction photocatalyst with potential application in wastewater treatment.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2020
·
IF 3.83
Lei Zhang,Xing Hong,Zhiquan Chen,Dingkang Xiong,Jiaming Bai
The ( x ) In 2 O 3 /(1- x ) Ca 3 Co 4 O 9 ( x = 0-15 wt%) composites were prepared using the solid reaction method followed by a spark plasma sintering process. There is no reaction occurring, and the natural c -axis grain-oriented structure is observed in all samples by XRD measurements. Scanning electron microscopy and Energy dispersive spectroscopy observations indicate that the In 2 O 3 nanoparticles are present as the ultrafine particles/clusters secondary phase in Ca 3 Co 4 O 9 . Electric properties measurement shows that the electrical conductivity reduced by adding In 2 O 3 particles, while the seebeck coefficient is virtually unaffected, which leads to the low power factor PF value of Ca 3 Co 4 O 9 . Significantly, however, there is an obvious recovery in the electrical conductivity of S15 sample compared to that of S5 and S10 samples, which also results in a rise again in PF of S15. This result may be of significance for further increase In 2 O 3 secondary phase content ( x > 15 wt%) to enhance the thermoelectric property of Ca 3 Co 4 O 9 .
研究领域:
材料科学
·
物理学
✓ 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）