Person

Seyyed Mohammad Hosseini Hashemi

This person is no longer with EPFL

Related publications (19)

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In the past decade, nanomaterials have made their way into a variety of technologies in solar energy, enhancing the performance by taking advantage of the phenomena inherent to the nanoscale. Recent examples exploit plasmonic core/shell nanoparticles to ac ...

American Chemical Society2016

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The conception of practical solar-hydrogen generators requires the implementation of engineering design principles that allow photo-electrochemical material systems to operate efficiently, continuously and stably over their lifetime. At the heart of these ...

Royal Soc Chemistry2016

The potential for microfluidics in electrochemical energy systems

Demetri Psaltis, Miguel Antonio Modestino, Seyyed Mohammad Hosseini Hashemi

Flow based electrochemical energy conversion devices have the potential to become a prominent energy storage technology in a world driven by renewable energy sources. The optimal design of these devices depends strongly on the tradeoffs between the losses ...

Royal Society of Chemistry2016

Device and System Having Water Microelectrolyzer Cells and Method of Using the Same

Demetri Psaltis, Christophe Moser, Miguel Antonio Modestino, Seyyed Mohammad Hosseini Hashemi

A device having a water vapor microelectrolyzer cell including microstructured parallel electrodes where the water splitting reactions can take place, the microstructured electrodes being covered by a thin layer of solid-state ion conducting material to al ...

2016

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The present invention concerns a membrane-less electrolyzer comprising a fluidic channel for receiving an electrolyte fluid; a first electrode and a second electrode located inside the fluidic channel, the first and second electrode permitting to extract a ...

2016

Vapor-fed microfluidic hydrogen generator

Demetri Psaltis, Christophe Moser, Sophia Haussener, Miguel Antonio Modestino, Seyyed Mohammad Hosseini Hashemi, Mikaël Dumortier

Water-splitting devices that operate with humid air feeds are an attractive alternative for hydrogen production as the required water input can be obtained directly from ambient air. This article presents a novel proof-of-concept microfluidic platform that ...

Royal Society of Chemistry2015

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The development of deployable water-splitting devices is hindered by the cost of electricity and the lack of stable ion conducting membranes that can operate across the pH scale, impose low ionic resistances and avoid product mixing. The membrane-less appr ...

Royal Society of Chemistry2015

A micropillar array for sample concentration via in-plane evaporation

Demetri Psaltis, Jae-Woo Choi, Seyyed Mohammad Hosseini Hashemi

We present a method to perform sample concentration within a lab-on-a-chip using a microfluidic structure which controls the liquid-gas interface through a micropillar array fabricated in polydimethylsiloxane between microfluidic channels. The microstructu ...

American Institute of Physics2014

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The Shockley-Queisser limit predicts a maximum efficiency of 30% for single junction photovoltaic (PV) cells. The rest of the solar energy is lost as heat and due to phenomena such as reflection and transmission through the PV and charge carrier recombinat ...

Royal Society of Chemistry2014