ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Tiancheng Wang,Zehao Shi,Furan Wang,Shengrui Cui,Zengqi Zhang,Wei Liu,Yongcheng Jin
The shuttle effect of soluble lithium polysulfides (LiPSs) poses a crucial challenge for commercializing lithium–sulfur batteries. The functionalization of the separator is an effective strategy for enhancing the cell lifespan through the capture and reuse of LiPSs. Herein, a novel In2O3 nanorod with an ultrathin carbon layer (In2O3@C) was coated on a polypropylene separator. The results demonstrate the adsorption and catalysis of In2O3 on polysulfides, effectively inhibiting the shuttle effect and improving the redox kinetics of LiPSs. Besides, the ultrathin carbon layer increases the reaction sites and accelerates the electrochemical reaction rate. The cell with the In2O3@C interlayer displays excellent reversibility and stability with a 0.029% capacity decay each cycle in 2000 cycles at 2C. In addition, the In2O3@C interlayer significantly improves the cell performance under high current (888.2 mA h g–1 at 2C and room temperature) and low temperature (1007.8 mA h g–1 at 0.1C and −20 °C) conditions.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
PubMed
高影响因子
Journal of Materials Chemistry C
·
2019
·Vol. 7
·期 24
·7219-7229
·
IF 6.641
Xiaole Zhang,Dalei Song,Qi Liu,Rongrong Chen,Jindi Hou,Jingyuan Liu,Hongsen Zhang,Jing Yu,Peili Liu,Jun Wang
The reasonable design of semiconductor metal oxides modified by elemental doping and surface functionalization has been proven to be an effective method to improve the gas sensing abilities of chemiresistor-type sensors. In this work, Ni-doped In2O3 nanorods were fabricated via simple oil bath and annealing processes. To further enhance their gas sensing performances, Ag functionalization was carried out by a subsequent chemical reduction process. The experimental results reveal that these composites exhibit excellent formaldehyde sensing performance compared with pure In2O3 nanorods. In particular, 6%-Ag/Ni5.0In presents significantly enhanced gas sensing performance toward 100 ppm formaldehyde gas at a low working temperature (160 °C) with high sensitivity (123.97), fast response speed (1.45 s/58.2 s), and good selectivity and stability. Our research reveals that the improvement in sensing performance toward formaldehyde can be attributed to the large specific surface area, high relative contents of OV and OC components, electronic sensitization and the catalytic effect of Ag. The results provide an effective strategy to achieve excellent gas sensing performance for formaldehyde gas sensors.
研究领域:
材料科学
·
传感器技术
✓ 已验证
产品关联
DOI
高影响因子
NANOTECHNOLOGY
·
2021
·Vol. 32
·期 37
·375501
·
IF 3.874
Rongjun Zhao,Qunyan Wei,Yan Ran,Yulin Kong,Dian Ma,Linfeng Su,Lijia Yao,Yude Wang
Effectively and quantificationally detecting hazardous gas n-butanol is very significant in daily life, which can bring about a safe living condition for humans. In this study, the one-dimensional In2O3 nanorods were successfully synthesized via hydrothermal route and post-heat treatment. Noticeably, one-dimensional nanorods structures were obtained and the products presented a superior growth orientation along with (222) plane. Additionally, systematical gas-sensing measurements of the sensor made from In2O3 nanorods towards hazardous n-butanol gas were conducted. Results exhibited that the fabricated sensor showed excellent n-butanol sensing properties, with aspects to a superior response value of 342.20 with concentration 100 ppm at 240 °C, remarkable selectivity, fast response/recovery times (77.5/34.2 s) and good stability. More interestingly, the detection limit of sensor as low as 500 ppb and a good linearity relationship between response values and n-butanol concentrations was presented. Gas-sensitive properties of this sensor are better than previously reported in n-butanol detection. All results demonstrate that one-dimensional In2O3 nanorod is a promising sensor material to practical applications in effectively detecting n-butanol gas.
研究领域:
材料科学
·
传感器技术
✓ 已验证
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
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Longyu Ren,Yuhang Du,Ya Wang,Jinan Li,Ruojin Zhang,Jiliang Yuan,Hongyan Xu
In 2 O 3 , as a traditional metal oxide semiconductor substrate material, responds to various toxic and harmful gases but with poor selectivity. This paper uses the hydrothermal method to grow dense and uniform In 2 O 3 nanorods vertically on a ceramic tube, and then covers them with ZIF-71. By adjusting the type of solvent used to synthesize ZIF-71, the morphology and properties of the material can be changed. The pores and large specific surface area of ZIF-71 are utilized to sieve large molecular gases, providing more adsorption sites for NO 2 gas. And it forms heterostructure with In 2 O 3 to enhance the response to NO 2 . The optimized gas sensor In 2 O 3 @ZIF-71(CH 3 OH) shows superior response (185, S=R g / R a ) and selectivity of 50 ppm triethylamine as an interfering gas (7.23, S=R a / R g ) to 50 ppm NO 2 compared to pure In 2 O 3 nanorods. Molecular dynamics simulation is used to study the gas adsorption performance of ZIF-71 and theoretical simulation of the adsorption behavior of NO 2 on the In 2 O 3 substrate is conducted through density functional theory. The simulation results show that the ZIF-71 molecular sieve can reduce the response to large molecule TEA gas through the dual effects of pore size adsorption and blocking, thereby improving the selectivity of the material. Indium oxide (In 2 O 3 ) has an adsorption effect on nitrogen dioxide (NO 2 ), with an adsorption heat of 0.499 electron volts, and its adsorption effect is relatively stable.
✓ 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）