Results 51 to 60 of about 69,894 (304)

Water management in direct methanol fuel cells [PDF]

, 2008
Direct methanol fuel cell (DMFC) are a promising power source for micro and portable applications due to their high energy density and inherent simplicity of operation with methanol as the liquid fuel.
Oliveira, V. B., Pinto, A. M. F. R., Rangel, C. M.   +2 more
core  

From Waste to Value: Conversion of Calcium Sulfate to Vaterite via Carbon Capture and Storage

Advanced Functional Materials, EarlyView.
This study introduces a new concept for carbon management that relies on the carbonation of industrial gypsum waste and yields phase‐pure vaterite at ambient conditions without any additives. The obtained vaterite is further shown to be a reactive material that develops compressive strength in aqueous suspensions like conventional cements.
Carlos Pimentel, German Montes‐Hernández, Pablo Almarza‐Cifuentes, Matthias Kellermeier, Alexander E.S. Van Driessche   +4 more
wiley   +1 more source

Germanane Quantum Dots Promote Metabolic Reprogramming of Immune Cells Toward Regulatory T Cells and Suppress Inflammation In Vitro and In Vivo

Advanced Functional Materials, EarlyView.
Metabolic changes in immune cells direct the phenotype and function of the host immune system. Smart nanomaterials must target metabolic pathways to direct immune cell fate. This study reports the fabrication and first application of germanane quantum dots (GeHQDs) to modulate inflammation in vitro and in vivo.
Abhay Srivastava, Alireza Rafieerad, Weiang Yan, Keshav Narayan Alagarsamy, Qingdong Guan, Leena Regi Saleth, Michel Aliani, Sanjiv Dhingra   +7 more
wiley   +1 more source

Direct methanol fuel cells parameter identification with enhanced algorithmic technique

Energy Conversion and Management: X
The parameter of a direct methanol fuel cell (DMFC) can be identified using optimization techniques to determine the optimal unknown parameter values that are needed for creating an accurate fuel cell performance prediction model.
Manish Kumar Singla, Muhammed Ali S.A, Ramesh Kumar, Hamed Zeinoddini-Meymand, Farhad Shahnia   +4 more
doaj   +1 more source

Novel Aminated Cellulose Acetate Membranes for Direct Methanol Fuel Cells (DMFCs)

International Journal of Electrochemical Science, 2017
Currently, enhancing the mechanical properties and decreasing methanol permeability is the major challenge for the polyelectrolyte membranes for the direct methanol fuel cells (DMFCs).
M.S. Mohy Eldin, A.M. Omer, T.M. Tamer, M.H. Abd Elmageed, M.E. Youssef, R.E. Khalifa   +5 more
doaj   +1 more source

Recent Advances in the Development of Nanocatalysts for Direct Methanol Fuel Cells

Energies, 2022
Direct methanol fuel cells (DMFCs) have attracted much attention due to their potential application as a power source for portable devices. Their simple construction and operation, associated with compact design, high energy density, and relatively high ...
Maria H. de Sá, Catarina S. Moreira, Alexandra M. F. R. Pinto, Vânia B. Oliveira   +3 more
doaj   +1 more source

A Direct DME High Temperature PEM Fuel Cell [PDF]

, 2012
Dimethyl ether (DME) has been identified as an alternative to methanol for use in direct fuel cells. It combines the advantages of hydrogen in terms of pumpless fuel delivery and high energy density like methanol, but without the toxicity of the latter ...
Bjerrum, Niels, Cleemann, Lars Nilausen, Jensen, Jens Oluf, Li, Qingfeng, Pan, Chao, Steenberg, T., Vassiliev, Anton   +6 more
core  

Controlled Movement of Soft Actuators using Multi‐Responsive Microgel Arrays and Microcirculatory Systems

Advanced Functional Materials, EarlyView.
Microscale hydrogels (microgels) feature improved mass transport characteristics supportive of fast actuation and chemical tunability amenable to programmed stimuli response. A unique soft actuator architecture is realized by encapsulating microgels in soft microcirculatory systems which enable the convenient delivery of liquid stimuli for powering and
Nengjian Huang, Brennan P. Watts, Stephen A. Morin   +2 more
wiley   +1 more source

Perspectives on the design and use of direct alcohol fuel cells fed by alcohol blends [PDF]

, 2011
The fast-growing power demand by portable electronic devices has promoted the increase of global production of portable PEM fuel cell, a quarter of them consist of direct methanol fuel cell (DMFC) units.
Leo Mena, Teresa de Jesus, Mora Peña, Eleuterio, Navarro Arevalo, Emilio, Raso García, Miguel Ángel   +3 more
core  

Proton transport for fuel cells [PDF]

, 2010
No ...
Haile, Sossina M., Pintauro, Peter N.
core   +1 more source