scholarly journals Rational design of MgF2 catalysts with long-term stability for the dehydrofluorination of 1,1-difluoroethane (HFC-152a)

RSC Advances ◽  
2019 ◽  
Vol 9 (41) ◽  
pp. 23744-23751 ◽  
Author(s):  
Haodong Tang ◽  
Mingming Dang ◽  
Yuzhen Li ◽  
Lichun Li ◽  
Wenfeng Han ◽  
...  
Keyword(s):  
Rational Design ◽  
Sol Gel ◽  
Hard Template ◽  
Term Stability ◽  
Long Term Stability ◽  
Improved Stability ◽  
Hfc 152A ◽  
Template Methods

In this study, sol–gel, precipitation and hard-template methods were applied to synthesize MgF2 catalysts with improved stability towards dehydrofluorination of hydrofluorocarbons and MgF2-T catalysts demonstrated superior long-term stability.

Fabrication of Boron Compensated Hydrogenated Amorphous Silicon Films with Significantly Improved Stability Using Plasma Enhanced Chemical Vapor Deposition Technique

1995 ◽  
Vol 377 ◽  
Author(s):  
Mohan K. Bhan
Keyword(s):  
Chemical Vapor ◽  
Short Term ◽  
Term Stability ◽  
Long Term Stability ◽  
Vapor Deposition Technique ◽  
Improved Stability ◽  
Donor Acceptor ◽  
B Doping ◽  
The Stability

ABSTRACTWe have systematically investigated the effects of addition of sub-ppm levels of boron on the stability of a-Si:H films and p-i-n devices, deposited by PE-CVD technique. The films thus produced with appropriate amounts of boron, show a significant improvement in stability, when soaked under both AM 1.5 (short-term) as well as 10×sun (long-term) illumination conditions. The opto-electronic properties of the films are quite respectable It is concluded that boron compensates the native impurities by forming donor-acceptor pairs, which reduces the “fast” defects and hence the initial degradation of the films. It is also speculated that boron may also be improving the short-term stability, by reducing the recombination of light generated electrons and holes, by converting D° into D+ states. The long-term stability appears to get affected by hydrogen dilution which seems to reduce the amount of “slow” defects. As a result of B doping of i-layer, the initial conversion efficiency of the devices decreases. It is presumed that our devices may contain an enhanced level of boron impurity, than expected, making them as worse material and to degrade less.

Highly selective zirconia-based propene sensor attached with sol–gel derived NiO nanospheres

RSC Advances ◽  
2015 ◽  
Vol 5 (31) ◽  
pp. 24126-24131 ◽  
Author(s):  
Kamaraj Mahendraprabhu ◽  
Perumal Elumalai
Keyword(s):  
Electrochemical Sensor ◽  
Sol Gel ◽  
High Sensitivity ◽  
Term Stability ◽  
Long Term Stability ◽  
Sensitivity And Selectivity

An YSZ-based electrochemical sensor was fabricated using sol–gel derived NiO nanospheres. The sensor exhibited high sensitivity and selectivity to C3H6 (propene) with excellent long-term stability.

scholarly journals The sol-gel autocombustion as a route towards highly CO2-selective, active and long-term stable Cu/ZrO2 methanol steam reforming catalysts

2021 ◽  
Author(s):  
Kevin Ploner ◽  
Parastoo Delir Kheyrollahi Nezhad ◽  
Albert Gili ◽  
Franz Kamutzki ◽  
Aleksander Gurlo ◽  
...  
Keyword(s):  
Steam Reforming ◽  
Sol Gel ◽  
Methanol Steam Reforming ◽  
Term Stability ◽  
Long Term Stability ◽  
Reforming Catalysts ◽  
Co2 Selectivity ◽  
Zro2 System ◽  
Steam Reforming Catalysts

The adaption of the sol-gel autocombustion method to the Cu/ZrO2 system opens new pathways for the specific optimisation of the activity, long-term stability and CO2 selectivity of methanol steam reforming...

Improved stability and efficiency of polymer-based selenium solar cells through the usage of tin(iv) oxide in the electron transport layers and the analysis of aging dynamics

2020 ◽  
Vol 22 (26) ◽  
pp. 14838-14845 ◽  
Author(s):  
Wenbo Liu ◽  
Fei Yu ◽  
Weijun Fan ◽  
Qichun Zhang
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Aging Process ◽  
Term Stability ◽  
Long Term Stability ◽  
Improved Stability

Well-performing SSCs with SnO2 as the ETL and P3HT as the HTL, showing a long-term stability (more than 1500 h) were fabricated. Moreover, the aging process of the SSCs was analyzed in detail to explore the factors that affect the device behaviors.

Sol−Gel-Derived Sensor Materials That Yield Linear Calibration Plots, High Sensitivity, and Long-Term Stability

2003 ◽  
Vol 75 (10) ◽  
pp. 2407-2413 ◽  
Author(s):  
Ying Tang ◽  
Elizabeth C. Tehan ◽  
Zunyu Tao ◽  
Frank V. Bright
Keyword(s):  
Sol Gel ◽  
High Sensitivity ◽  
Linear Calibration ◽  
Term Stability ◽  
Long Term Stability ◽  
Sensor Materials

scholarly journals Impact of Fluorine atoms on triphenylamine-based dopant free hole selective layer for perovskite solar cells

2021 ◽  
Author(s):  
Abolfazl Ghaderian ◽  
Meenakshi Pegu ◽  
Naveen Harindu Hemasiri ◽  
Peng Huang ◽  
Shahzada Ahmad ◽  
...  
Keyword(s):  
Solar Cells ◽  
Rational Design ◽  
Perovskite Solar Cells ◽  
Cost Effective ◽  
Free Hole ◽  
Selective Layer ◽  
Term Stability ◽  
Long Term Stability ◽  
Hole Transporting

For industrial endeavors, perovskite solar cells (PSCs) demand long-term stability and a cost-effective hole-transporting layer (HTL). The PSC stability can be substantially improved by the rational design of dopant-free HTL...

Porous CaFe2O4 as a promising lithium ion battery anode: a trade-off between high capacity and long-term stability

Nanoscale ◽  
2018 ◽  
Vol 10 (27) ◽  
pp. 12963-12969 ◽  
Author(s):  
Chunhua Han ◽  
Xiao Zhang ◽  
Xiaoming Xu ◽  
Qi Li ◽  
Qiu He ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Iron Oxides ◽  
Sol Gel ◽  
High Capacity ◽  
Lithium Ion ◽  
Trade Off ◽  
Term Stability ◽  
Long Term Stability ◽  
Battery Anode

The porous CaFe2O4 was synthesized by a facile sol–gel method and shows a distinct trade-off in terms of high capacity and long-term stability compared to pristine iron oxides.

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