scholarly journals Mesoporous Carbons for Energy-Efficient Water Splitting to Produce Pure Hydrogen at Room Temperature

Author(s):  
Mohindar S. Seehra ◽  
Vishal Narang
Nano Research ◽  
2019 ◽  
Vol 12 (12) ◽  
pp. 3101-3108 ◽  
Author(s):  
Guangyu He ◽  
Qi Wang ◽  
Hak Ki Yu ◽  
Daniel Farías ◽  
Yingchun Liu ◽  
...  

Small ◽  
2018 ◽  
Vol 14 (14) ◽  
pp. 1704233 ◽  
Author(s):  
Enlai Hu ◽  
Jiqiang Ning ◽  
Dian Zhao ◽  
Chunyang Xu ◽  
Yingying Lin ◽  
...  

2021 ◽  
pp. 2109709
Author(s):  
Guijuan Wei ◽  
Yongli Shen ◽  
Xixia Zhao ◽  
Ying Wang ◽  
Weiqing Zhang ◽  
...  

2014 ◽  
Vol 699 ◽  
pp. 257-262
Author(s):  
Sulastri Sabudin ◽  
Mohd Zairul Hakimi Remlee ◽  
Mohd Faizal Mohideen Batcha

The demand for food has been ever increasing in proportion with the growing human population. This includes agricultural products including fruits. Hence, food preservation for extended usage through drying is gaining importance. This study reports the drying behavior of several agricultural products, namely sweet potato, carrot, ginger, turmeric, passion fruit and its rind. Focus has been given to the effect of relative humidity on drying for these products at room temperature. Experiments were carried out at 27°C by varying relative humidity at 40%, 60% and 80%. It was found that the relative humidity has a strong effect on drying, with lower relative humidity providing higher drying rates. In humid surrounding like Malaysia which has an average humidity more than 70%, controlling humidity of drying air may result in an energy efficient process in comparison to raising the drying air temperature


2016 ◽  
Vol 4 (36) ◽  
pp. 13736-13741 ◽  
Author(s):  
Zexun Jin ◽  
Zhuofeng Hu ◽  
Jimmy C. Yu ◽  
Jianfang Wang

A Cu2O photocathode with excellent PEC performance was fabricated by a simple comproportionation reaction between Cu0 and Cu2+.


2014 ◽  
Vol 50 (1) ◽  
pp. 1-4 ◽  
Author(s):  
Chih-Ming Hsieh ◽  
Yu-Chuan Su ◽  
Chih-Hao Lee ◽  
Pai-Hsiang Cheng ◽  
Keh-Chyang Leou

2020 ◽  
Vol 4 (1) ◽  
pp. 312-323 ◽  
Author(s):  
Harsharaj S. Jadhav ◽  
Animesh Roy ◽  
Bezawit Z. Desalegan ◽  
Jeong Gil Seo

A room-temperature synthesized NiFeCe2 electrocatalyst delivered a current density of 10 mA cm−2 at a cell voltage of 1.59 V when used as the electrolyzer.


2016 ◽  
Vol 26 (4) ◽  
pp. 528-537 ◽  
Author(s):  
Alan Kabanshi ◽  
Hans Wigö ◽  
Robert Ljung ◽  
Patrik Sörqvist

Steady indoor environments are perceived poor at high temperatures and require a high energy input to cool to comfortable operative temperatures. The introduction of airflow variations in such environments improves occupant perception and is shown to be far more energy efficient than cooling the entire space as only the occupants’ are cooled. However, with this method the risk of draft is high and use of velocity variations reduces the risk. This paper discusses and compares two occupant cooling methods in a classroom setup. Cooling by reducing the room temperature and enhanced convective cooling with intermittent air velocities. The experiments were performed in a full scale mockup classroom with a total of 85 student-participants. In study 1, participants sat in a classroom for about 60 min, in one of two temperature conditions: 20℃ and 25℃. In study 2, all participants sat in a room with a temperature of 25℃, but airflow variation in the sitting zone was manipulated. In both studies, the participants performed various tasks and answered questionnaires on their perception of the indoor climate. As shown here, higher classroom temperature deteriorates human perception of the indoor climate, and the use of intermittent air velocities improves the perception of indoor climate just like cooling by reducing the room air temperature. The results reveal that convective cooling can effectively be used as an energy efficient method of cooling in school environments.


2019 ◽  
Vol 5 (12) ◽  
pp. eaay5141 ◽  
Author(s):  
Aitian Chen ◽  
Yuelei Zhao ◽  
Yan Wen ◽  
Long Pan ◽  
Peisen Li ◽  
...  

One of the motivations for multiferroics research is to find an energy-efficient solution to spintronic applications, such as the solely electrical control of magnetic tunnel junctions. Here, we integrate spintronics and multiferroics by depositing MgO-based magnetic tunnel junctions on ferroelectric substrate. We fabricate two pairs of electrodes on the ferroelectric substrate to generate localized strain by applying voltage. This voltage-generated localized strain has the ability to modify the magnetic anisotropy of the free layer effectively. By sequentially applying voltages to these two pairs of electrodes, we successively and unidirectionally rotate the magnetization of the free layer in the magnetic tunnel junctions to complete reversible 180° magnetization switching. Thus, we accomplish a giant nonvolatile solely electrical switchable high/low resistance in magnetic tunnel junctions at room temperature without the aid of a magnetic field. Our results are important for exploring voltage control of magnetism and low-power spintronic devices.


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