Results 21 to 30 of about 123,549 (219)

Nanofiber-Based Oxygen Reduction Electrocatalysts with Improved Mass Transfer Kinetics in a Meso-Porous Structure and Enhanced Reaction Kinetics by Confined Fe and Fe₃C Particles for Anion-Exchange Membrane Fuel Cells

Energies, 2022
The development of high-performance nonprecious metal catalysts for oxygen reduction reactions is critical for the commercialization of fuel cells. In this paper, we report a non-precious catalyst with high-performance, in which Fe and Fe3C is embedded ...
Wenzhe Luo, Longsheng Cao, Ming Hou, Liang He, Yawen Zhou, Feng Xie, Zhigang Shao   +6 more
doaj   +1 more source

Anomalous in situ Activation of Carbon-Supported Ni2P Nanoparticles for Oxygen Evolving Electrocatalysis in Alkaline Media

Scientific Reports, 2017
Electrochemical water splitting is one of the most promising systems by which to store energy produced from sustainable sources, such as solar and wind energy.
Young-Hoon Chung, Injoon Jang, Jue-Hyuk Jang, Hyun S. Park, Hyung Chul Ham, Jong Hyun Jang, Yong-Kul Lee, Sung Jong Yoo   +7 more
doaj   +1 more source

Nata de Cassava Type of Bacterial Cellulose Doped with Phosphoric Acid as a Proton Exchange Membrane

Membranes, 2022
This work aims to encourage the use of natural materials for advanced energy applications, such as proton exchange membranes in fuel cells. Herein, a new conductive membrane produced from cassava liquid waste was used to overcome environmental pollution ...
Andarany Kartika Sari, Rozan Mohamad Yunus, Edy Herianto Majlan, Kee Shyuan Loh, Wai Yin Wong, Nur Ubaidah Saidin, Sagir Alva, Deni Shidqi Khaerudini   +7 more
doaj   +1 more source

Platinum-Based Catalysts on Various Carbon Supports and Conducting Polymers for Direct Methanol Fuel Cell Applications: a Review

Nanoscale Research Letters, 2018
Platinum (Pt)-based nanoparticle metals have received a substantial amount of attention and are the most popular catalysts for direct methanol fuel cell (DMFC).
Z. A. C. Ramli, S. K. Kamarudin
doaj   +1 more source

The Application of a Self-Made Integrated Three-in-One Microsensor and Commercially Available Wind Speed Sensor to the Cold Air Pipe of the Heating, Ventilation, and Air Conditioning in a Factory for Real-Time Wireless Measurement

Sensors, 2023
In this study, the integrated three-in-one (temperature, humidity, and wind speed) microsensor was made through the technology of the Micro-electro-mechanical Systems (MEMS) to measure three important physical quantities of the internal environment of ...
Chi-Yuan Lee, Jiann-Shing Shieh, Jerry Chen, Xin-Wen Wang, Chen-Kai Liu, Chia-Hsin Wei   +5 more
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Biogenic platinum from agricultural wastes extract for improved methanol oxidation reaction in direct methanol fuel cell

Journal of Advanced Research, 2021
Introduction: Platinum is the most commonly used catalyst in fuel cell application. However, platinum is very expensive, thus limits the commercialization of fuel cell system due to the cost factor.
N.A.I.M. Ishak, S.K. Kamarudin, S.N. Timmiati, N.A. Karim, S. Basri   +4 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

In-situ Monitoring of Temperature and Voltage in Lithium-Ion Battery by Embedded Flexible Micro Temperature and Voltage Sensor

International Journal of Electrochemical Science, 2013
Lithium-ion batteries are utilized in mobile phones, personal digital assistants (PDA), 3C products and electric vehicles. Batteries must be rapidly chargeable. They discharge in devices.
Chi-Yuan Lee, Shuo-Jen Lee, Yi-Ho Chen, Ming-Yu Chung, Kuo-Chang Han, Yu-Ming Chang, Ming-Shao Tang   +6 more
doaj   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

FEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source