Concept

Hydrogène

Publications associées (906)

Fiber-Tip Polymer Microcantilever for Fast and Highly Sensitive Hydrogen Measurement

Giovanni Dietler, Sandor Kasas, Jiangtao Zhou, Leonardo Venturelli, Yiping Wang, Chaohui Li, Meng Zhu, Cong Xiong

Hydrogen as an antioxidant gas has been widely used in the medical and biological fields for preventing cancer or treating inflammation. However, controlling the hydrogen concentration is crucial for practical use due to its explosive property when its vol ...

AMER CHEMICAL SOC2020

Efficient Hydrogen Oxidation Catalyzed by Strain-Engineered Nickel Nanoparticles

Xile Hu, Pascal Alexander Schouwink, Weiyan Ni, Teng Wang

The hydroxide-exchange membrane fuel cell (HEMFC) is a promising energy conversion device. However, the development of HEMFC is hampered by the lack of platinum-group-metal-free (PGM-free) electrocatalysts for the hydrogen oxidation reaction (HOR). Now, a ...

WILEY-V C H VERLAG GMBH2020

Hydrogen-Bonded Small Molecules and Polymers in Organic Electronics

Bilal Özen

Organic semiconductors are important components for applications in different fields of technology, as their advantages include the possibility of low-temperature processing as well as low-cost, large-area manufacturing based on solution-based processes, c ...

EPFL2020

Oxygen evolution reaction: Bifunctional mechanism breaking the linear scaling relationship

Alfredo Pasquarello, Patrick Gono

The bifunctional mechanism for the oxygen evolution reaction (OER) involving two distinct reaction sites is studied through the computational hydrogen electrode method for a set of catalyst materials including rutile TiO2(110), anatase TiO2(101), SnO2(110) ...

2020

Sustainable Hydrogenation of Nitroarenes to Anilines with Highly Active in-situ Generated Copper Nanoparticles

Berend Smit, Mounir Driss Mensi, Kyriakos Stylianou, Ngoc Tú Nguyên, Christopher Patrick Ireland, Fatma Pelin Uran

Metal nanoparticles (NPs) are usually stabilized by a capping agent, a surfactant, or a support material, to maintain their integrity. However, these strategies can impact their intrinsic catalytic activity. Here, we demonstrate that the in-situ formation ...

2020

Strategies for Semiconductor/Electrocatalyst Coupling toward Solar-Driven Water Splitting

Xile Hu, Lichen Bai, Lei Liu

Hydrogen (H-2) has a significant potential to enable the global energy transition from the current fossil-dominant system to a clean, sustainable, and low-carbon energy system. While presently global H-2 production is predominated by fossil-fuel feedstocks ...

WILEY2020

Combined hydrogen storage - compression system for the filling of high pressure hydrogen tanks

Andreas Züttel, Noris André Gallandat

The present relates to a combined hydrogen storage-compression unit suitable for the filling of high-pressure (350 bar and beyond) hydrogen vessels. It comprises a containment vessel filled with a hydrogen storage alloy, a heating system, a cooling system ...

2020

Multi-criteria optimization of a renewable hydrogen and freshwater production system using HDH desalination unit and thermoelectric generator

Hossein Pourrahmani

This article presents the exergoeconomic evaluation of a new geothermal-based integrated system, which produces hydrogen and freshwater. The proton exchange membrane electrolyzer (PEME) and humidifier-dehumidifier (HDH) units are responsible for hydrogen a ...

PERGAMON-ELSEVIER SCIENCE LTD2020

Investigation of the fine structure of antihydrogen

Shirit Cohen

At the historic Shelter Island Conference on the Foundations of Quantum Mechanics in 1947, Willis Lamb reported an unexpected feature in the fine structure of atomic hydrogen: a separation of the 2S(1/2) and 2P(1/2) states(1). The observation of this separ ...

2020

Electrochemical reactor

Demetri Psaltis, Seyyed Mohammad Hosseini Hashemi

In an electrochemical reactor (R) for producing oxygen and hydrogen by means of electrolysis of an electrolyte (16), wherein the electrochemical reactor (R) comprises a first electrode set (S) and wherein the first electrode set (S) comprises a first elect ...

2020

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