Results 31 to 40 of about 5,697,993 (289)

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

Impact of Substrate Type and Membrane Scaling on Catalyst Transfer Efficiency in PEM Water Electrolyzers via the Decal Method

International Journal of Chemical Engineering
Catalyst-coated membranes (CCMs) were fabricated using the decal transfer method to enhance catalyst transfer efficiency, performance, and stability in polymer electrolyte membrane water electrolyzers (PEMWEs).
Md Ahsanul Haque, Edy Herianto Majlan, Ammar Gamal Bazarah, Juliana Jumadi, Wei Shi Ng, Aina Aqila A. Alim, Noor Azira Abdul Razak, Maryam Taufiq Musa, Lim Bee Huah, Teuku Husaini   +9 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

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

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

Fuel processor - PEM fuel cell systems for energy generation [PDF]

, 2010
In the last few years, increasing attention has been paid to PEM fuel cells, as promising device for decentralized energy production, both in stationary and automotive field, thanks to high compactness, low weight (high power-to-weight ratio), high ...
Menna, Laura
core   +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

Epigenetic reprogramming of lineage switching in cancer

FEBS Letters, EarlyView.
Cancer cells rarely commit to a single identity. Epigenetic mechanisms and tumor microenvironment cues push epithelial cells toward flexible, hybrid states that can shift into mesenchymal, neuroendocrine, or stem‐like fates, driving metastasis, drug resistance, and tumor heterogeneity. Targeting the epigenetic regulators behind these transitions, using
Ezgi Boyvatlı, Burcu Akman, Ezgi Bağırsakçı, Nese Atabey, Serap Erkek‐Ozhan   +4 more
wiley   +1 more source

PEM fuel cells for the power supply of electronic appliances

, 2004
At the Fraunhofer Institute for Solar Energy Systems ISE we develop customized fuel cell systems based on hydrogen or methanol as fuel. This article describes some scientific approaches for the basic understanding of fuel cells we are taking in terms of ...
Hesselmann, Jan, Zobel, Marco, Hakenjos, Alexander, Schumacher, Jürgen, Pocza, David, Burger, Bruno, Münter, Harald, Hebling, Christopher, Zedda, Mario, Wittstatt, Ursula   +9 more
core   +2 more sources

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