Efficient solar-driven hydrogen generation using colloidal heterostructured quantum dots

2019 ◽  
Vol 7 (23) ◽  
pp. 14079-14088 ◽  
Author(s):  
Kanghong Wang ◽  
Xin Tong ◽  
Yufeng Zhou ◽  
Hui Zhang ◽  
Fabiola Navarro-Pardo ◽  
...  
Keyword(s):  
Quantum Dots ◽  
High Performance ◽  
Hydrogen Generation ◽  
Core Shell ◽  
Term Stability ◽  
Long Term Stability

Here, we report a CdSe/CdSeS alloy/CdS core/shell/shell QD sensitized mesoporous TiO2 photoanode, which exhibits high performance and long-term stability for solar-driven hydrogen generation.

Graphene quantum dots–three-dimensional graphene composites for high-performance supercapacitors

2014 ◽  
Vol 16 (36) ◽  
pp. 19307-19313 ◽  
Author(s):  
Qing Chen ◽  
Yue Hu ◽  
Chuangang Hu ◽  
Huhu Cheng ◽  
Zhipan Zhang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
High Performance ◽  
Graphene Quantum Dots ◽  
Three Dimensional ◽  
Term Stability ◽  
Long Term Stability

Graphene quantum dots boost the capacitance of the graphene supercapacitor by more than 90% and with an excellent long-term stability.

High-performance humidity sensors from Ni(SO4)0.3(OH)1.4 nanobelts

Nanoscale ◽  
2014 ◽  
Vol 6 (12) ◽  
pp. 6521-6525 ◽  
Author(s):  
Ming Zhuo ◽  
Yuejiao Chen ◽  
Tao Fu ◽  
Haonan Zhang ◽  
Zhi Xu ◽  
...  
Keyword(s):  
High Performance ◽  
Humidity Sensor ◽  
High Sensitivity ◽  
Fast Response ◽  
Humidity Sensors ◽  
Term Stability ◽  
Long Term Stability

Ni(SO4)0.3(OH)1.4 nanobelts are utilized in a humidity sensor by a facile method. The nanobelt based sensor shows a high sensitivity, fast response and long-term stability in the sensing process.

A new dialkylthio-substituted naphtho[2,3-c]thiophene-4,9-dione based polymer donor for high-performance polymer solar cells

2019 ◽  
Vol 12 (2) ◽  
pp. 675-683 ◽  
Author(s):  
Yue Wu ◽  
Hang Yang ◽  
Yan Zou ◽  
Yingying Dong ◽  
Jianyu Yuan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymer ◽  
High Performance ◽  
Polymer Solar Cells ◽  
Term Stability ◽  
Long Term Stability ◽  
Donor Material ◽  
High Performance Polymer

A dialkylthio-substituted conjugated polymer is designed and synthesized as a donor material for high-performance polymer solar cells with long-term stability.

Enhancement of efficiency and long-term stability in graphene/Si-quantum-dot heterojunction photodetectors by employing bis(trifluoromethanesulfonyl)-amide as a dopant for graphene

2017 ◽  
Vol 5 (48) ◽  
pp. 12737-12743 ◽  
Author(s):  
Dong Hee Shin ◽  
Chan Wook Jang ◽  
Ju Hwan Kim ◽  
Jong Min Kim ◽  
Ha Seung Lee ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Term Stability ◽  
Long Term Stability ◽  
Si Quantum Dot ◽  
First Time ◽  
Si Quantum Dots

Bis(trifluoromethanesulfonyl)-amide (TFSA) is for the first time employed as a dopant for graphene for graphene/Si-quantum-dots-based photodetectors.

scholarly journals Long-Term Stability of Lorazepam in Sodium Chloride 0.9% Stored at Different Temperatures in Different Containers

2019 ◽  
Vol 55 (3) ◽  
pp. 188-192
Author(s):  
M. L. Colsoul ◽  
A. Breuer ◽  
N. Goderniaux ◽  
J. D. Hecq ◽  
L. Soumoy ◽  
...  
Keyword(s):  
Time Management ◽  
High Performance ◽  
Room Temperature ◽  
Color Change ◽  
Storage Period ◽  
Term Stability ◽  
Long Term Stability ◽  
Glass Bottles ◽  
The Stability

Background and Objective: Infusion containing lorazepam is used by geriatric department to limit anxiety disorders in the elderly. Currently, these infusions are prepared according to demand by the nursing staff, but the preparation in advance in a centralized service could improve quality of preparation and time management. The aim of this study was to investigate the long-term stability of this infusion in polypropylene syringes stored at 5 ± 3°C. Then, results obtained were compared with stability data of lorazepam in syringes stored at room temperature, glass bottles at 5 ± 3°C, and glass bottles at room temperature. Method: Eight syringes and 6 bottles of infusion were prepared by diluting 1 mL lorazepam 4 mg in 23 mL of NaCl 0.9% under aseptic conditions. Five syringes and 3 bottles were stored at 5 ± 3°C and 3 syringes and 3 bottles were stored at room temperature for 30 days. During the storage period, particle appearance or color change were periodically checked by visual and microscope inspection. Turbidity was assessed by measurements of optical density (OD) at 3 wavelengths (350 nm, 410 nm, 550 nm). The stability of pH was also evaluated. The lorazepam concentrations were measured at each time point by high-performance liquid chromatography with ultraviolet detector at 220 nm. Results: Solutions were physically unstable in syringes at 5 ± 3°C after 4 days: crystals and a drop of OD at 350 nm were observed. However, pH was stable. After 2 days, solutions were considered as chemically unstable because a loss of lorazepam concentration higher than 10% was noticed: the lower 1-sided confidence limit at 95% was below 90% of the initial concentration. To assess temperature and polypropylene influence, results were compared with those obtained for syringes at room temperature and bottles at 5 ± 3°C and room temperature. Precipitation, drop of OD at 350 nm, and chemical instability were observed in all conditions. Conclusion: Solutions of lorazepam were unstable after 2 days in syringes at 5 ± 3°C. Preparation in advance appears, therefore, not possible for the clinical use. Storage conditions (temperature and form) do not improve the stability.

Atomic-Scale Origin of Long-Term Stability and High Performance ofp-GaN Nanowire Arrays for Photocatalytic Overall Pure Water Splitting

2016 ◽  
Vol 28 (38) ◽  
pp. 8388-8397 ◽  
Author(s):  
Md Golam Kibria ◽  
Ruimin Qiao ◽  
Wanli Yang ◽  
Idris Boukahil ◽  
Xianghua Kong ◽  
...  
Keyword(s):  
Water Splitting ◽  
High Performance ◽  
Pure Water ◽  
Nanowire Arrays ◽  
Atomic Scale ◽  
Term Stability ◽  
Long Term Stability ◽  
Gan Nanowire
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