Results 51 to 60 of about 77,682 (299)

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

Electrochemical impedance spectroscopy as a diagnostic tool for passive direct methanol fuel cells

Energy Reports, 2022
Passive direct methanol fuel cells (pDMFCs) are a promising power source for portable electronic devices since they achieve higher power densities than the traditional batteries, and use a liquid fuel, methanol, which is easy to handle, storage and ...
B.A. Braz, C.S. Moreira, V.B. Oliveira, A.M.F.R. Pinto   +3 more
doaj   +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  

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

Experimental and modeling studies of a micro direct methanol fuel cell [PDF]

, 2013
The Direct Methanol Fuel Cell (DMFC) has attracted much attention due to its potential applications as a power source for transportation and portable electronic devices.
Falcão, D. S., Pinto, A. M. F. R., Rangel, C. M.   +2 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

A Tortuosity Engineered Dual-Microporous Layer Electrode Including Graphene Aerogel Enabling Largely Improved Direct Methanol Fuel Cell Performance with High-Concentration Fuel

Energies, 2022
Methanol crossover is an important factor affecting the performance of direct methanol fuel cells (DMFCs). In this work, a novel membrane electrode assembly (MEA) is designed and prepared by adding a layer of graphene aerogel (GA) between the carbon ...
Li Guan, Prabhuraj Balakrishnan, Huiyuan Liu, Weiqi Zhang, Yilin Deng, Huaneng Su, Lei Xing, Željko Penga, Qian Xu   +8 more
doaj   +1 more source

Direct methanol feed fuel cell and system [PDF]

, 2000
Improvements to non-acid methanol fuel cells include new formulations for materials. The platinum and ruthenium are more exactly mixed together. Different materials are substituted for these materials.
Chun, William, Frank, Harvey A., Halpert, Gerald, Jeffries-Nakamura, Barbara, Kindler, Andrew, Narayanan, Sekharipuram R., Surampudi, Subbarao   +6 more
core   +1 more source

Toward Scalable Solutions for Silver‐Based Gas Diffusion Electrode Fabrication for the Electrochemical Conversion of CO2 – A Perspective

Advanced Functional Materials, EarlyView.
In this study, the preparation techniques for silver‐based gas diffusion electrodes used for the electrochemical reduction of carbon dioxide (eCO2R) are systematically reviewed and compared with respect to their scalability. In addition, physics‐based and data‐driven modeling approaches are discussed, and a perspective is given on how modeling can aid ...
Simon Emken, K. Ashoke Raman, Alexander Bauer, Violeta Karyofylli, Eva Jodat, André Karl, Rüdiger‐A. Eichel   +6 more
wiley   +1 more source

Direct methanol feed fuel cell and system [PDF]

, 2004
Improvements to non acid methanol fuel cells include new formulations for materials. The platinum and ruthenium are more exactly mixed together. Different materials are substituted for these materials.
Chun, William, Frank, Harvey A., Halpert, Gerald, Jeffries-Nakamura, Barbara, Kindler, Andrew, Narayanan, Sekharipuram R., Surampudi, Subbarao   +6 more
core   +1 more source