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Xile Hu

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Publications associées (209)

Widely available active sites on Ni2P for electrochemical hydrogen evolution - insights from first principles calculations

Xile Hu, Lucas-Alexandre Stern, Ligang Feng, Martin Hangaard Hansen

We present insights into the mechanism and the active site for hydrogen evolution on nickel phosphide (Ni2P). Ni2P was recently discovered to be a very active non-precious hydrogen evolution catalyst. Current literature attributes the activity of Ni2P to a ...

Royal Society of Chemistry2015

Toward Functional Type III [Fe]-Hydrogenase Biomimics for H2 Activation: Insights from Computation

Anne-Clémence Corminboeuf, Matthew Wodrich, Xile Hu, Kevin Alexander Murray

The chemistry of [Fe]-hydrogenase has attracted significant interest due to its ability to activate molecular hydrogen. The intriguing properties of this enzyme have prompted the synthesis of numerous small molecule mimics aimed at activating H2. Despite c ...

Wiley-V C H Verlag Gmbh2015

Solar Hydrogen Production by Amorphous Silicon Photocathodes Coated with a Magnetron Sputter Deposited Mo

Christophe Ballif, Xile Hu, Laurent Liardet, Carlos Gilberto Morales Guio, Björn Niesen

Coupling of Earth-abundant hydrogen evolution catalysts to photoabsorbers is crucial for the production of hydrogen fuel using sunlight. In this work, we demonstrate the use of magnetron sputtering to deposit Mo2C as an efficient hydrogen evolution reactio ...

Amer Chemical Soc2015

Reconstitution of [Fe]-hydrogenase using model complexes

Matthew Wodrich, Xile Hu, Dafa Chen, Tao Xu

[Fe]-Hydrogenase catalyses the reversible hydrogenation of a methenyltetrahydromethanopterin substrate, which is an intermediate step during the methanogenesis from CO2 and H-2. The active site contains an iron-guanylylpyridinol cofactor, in which Fe2+ is ...

Nature Publishing Group2015

Iron Pincer Complexes as Catalysts and Intermediates in Alkyl Aryl Kumada Coupling Reactions

Rosario Scopelliti, Matthew Wodrich, Xile Hu, Gerald Bauer

Iron-catalyzed alkylaryl Kumada coupling has developed into an efficient synthetic method, yet its mechanism remains vague. Here, we apply a bis(oxazolinylphenyl)amido pincer ligand (Bopa) to stabilize the catalytically active Fe center, resulting in isola ...

American Chemical Society2015

Evidence from in Situ X-ray Absorption Spectroscopy for the Involvement of Terminal Disulfide in the Reduction of Protons by an Amorphous Molybdenum Sulfide Electrocatalyst

Xile Hu, Heron Vrubel, Daniel Andreas Merki

The reduction of protons into dihydrogen is important because of its potential use in a wide range of energy applications. The preparation of efficient and cheap catalysts for this reaction is one of the issues that need to be tackled to allow the widespre ...

American Chemical Society2015

Transition Metal-Free Intermolecular alpha-C-H Amination of Ethers at Room Temperature

Xile Hu, Ivan Buslov

We describe a new method for the intermolecular amination of the alpha-C-H bonds of ethers. A hypervalent iodine reagent was used as oxidant to enable the amination of cyclic and acyclic alkyl ethers with a wide range of amides, imides, and amines. The ami ...

Wiley-Blackwell2014

Nanostructured hydrotreating catalysts for electrochemical hydrogen evolution

Xile Hu, Lucas-Alexandre Stern, Carlos Gilberto Morales Guio

Progress in catalysis is driven by society's needs. The development of new electrocatalysts to make renewable and clean fuels from abundant and easily accessible resources is among the most challenging and demanding tasks for today's scientists and enginee ...

Royal Society of Chemistry2014

Easily-prepared dinickel phosphide (Ni2P) nanoparticles as an efficient and robust electrocatalyst for hydrogen evolution

Michaël Bensimon, Xile Hu, Heron Vrubel, Ligang Feng

Polydispersed dinickel phosphide (Ni2P) nanoparticles were synthesized by a simple and scalable solid-state reaction. These nanoparticles are an excellent and robust catalyst for the electrochemical hydrogen evolution reaction, operating in both acidic and ...

Royal Society of Chemistry2014

Amorphous molybdenum sulfides as hydrogen evolution catalysts

Xile Hu, Carlos Gilberto Morales Guio

Providing energy for a population projected to reach 9 billion people within the middle of this century is one of the most pressing societal issues. Burning fossil fuels at a rate and scale that satisfy our near-term demand will irreversibly damage the liv ...

American Chemical Society2014

Biomimetic chemistry of [Fe]-hydrogenase-from synthetic models to modified enzymes

Xile Hu

Springer2014

Enhanced oxygen evolution activity by NiOx and Ni(OH)(2) nanoparticles

Xile Hu, Lucas-Alexandre Stern

Small nanoparticles of nickel oxide and nickel hydroxide were investigated for the oxygen evolution reaction (OER) in alkaline solutions. These nanoparticles showed excellent catalytic activity, giving a current density of 10 mA cm(-2) at overpotentials (e ...

Royal Society of Chemistry2014

Ultrathin Cobalt-Manganese Layered Double Hydroxide Is an Efficient Oxygen Evolution Catalyst

Xile Hu, Fang Song

Cost-effective production of solar fuels requires robust and earth-abundant oxygen evolution reaction (OER) catalysts. Herein, we report that ultrathin nanoplates of cobaltmanganese layered double hydroxide (CoMn LDH) are a highly active and stable oxygen ...

American Chemical Society2014

Nickel and iron complexes as catalysts and intermediates in cross coupling reactions

Xile Hu

Amer Chemical Soc2014

Bimetallic Oxidative Addition in Nickel-Catalyzed Alkyl-Aryl Kumada Coupling Reactions

Matthew Wodrich, Xile Hu, Jan Breitenfeld

The mechanism of alkylaryl Kumada coupling catalyzed by the nickel pincer complex Nickamine was studied. Experiments using radical-probe substrates and DFT calculations established a bimetallic oxidative addition mechanism. Kinetic measurements showed that ...

American Chemical Society2014

Synthesis and Reactivity of Mononuclear Iron Models of [Fe]-Hydrogenase that Contain an Acylmethylpyridinol Ligand

Xile Hu, Dafa Chen, Bowen Hu

[Fe]-hydrogenase has a single iron-containing active site that features an acylmethylpyridinol ligand. This unique ligand environment had yet to be reproduced in synthetic models; however the synthesis and reactivity of a new class of small molecule mimics ...

Wiley-V C H Verlag Gmbh2014

Renewable hydrogen generation from a dual-circuit redox flow battery

Christos Comninellis, Hubert Girault, Xile Hu, Véronique Amstutz, Heron Vrubel, Kathryn Ellen Toghill, Francis Powlesland

Redox flow batteries (RFBs) are particularly well suited for storing the intermittent excess supply of renewable electricity; so-called “junk” electricity. Conventional RFBs are charged and discharged electrochemically, with electricity stored as chemical ...

Royal Soc Chemistry2014

An Effective Pd–Ni2P/C Anode Catalyst for Direct Formic Acid Fuel Cells

Xile Hu, Ligang Feng

The direct formic acid fuel cell is an emerging energy conversion device for which palladium is considered as the state-of-the-art anode catalyst. In this communication, we show that the activity and stability of palladium for formic acid oxidation can be ...

Wiley-Blackwell2014

Exfoliation of layered double hydroxides for enhanced oxygen evolution catalysis

Xile Hu, Fang Song

The oxygen evolution reaction is a key reaction in water splitting. The common approach in the development of oxygen evolution catalysts is to search for catalytic materials with new and optimized chemical compositions and structures. Here we report an ort ...

Nature Publishing Group2014

A nanoporous molybdenum carbide nanowire as an electrocatalyst for hydrogen evolution reaction

Hubert Girault, Xile Hu, Micheal Diarmaid Scanlon

A highly active and stable electrochemical catalyst of nanoporous molybdenum carbide nanowires (np-Mo2C NWs) has been developed for hydrogen evolution reaction (HER). The np-Mo2C NWs were synthesized simply by pyrolysis of a MoOx,/amine hybrid precursor wi ...

Royal Soc Chemistry2014

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