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Xile Hu

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Publications associées (209)

Electrochemical reduction of CO2 in organic solvents catalyzed by MoO2

Xile Hu, Heron Vrubel, Sébastien Guidoux, Yeonji Oh

MoO2 microparticles act as an active catalyst for the electrochemical reduction of CO2 in organic solvents such as acetonitrile and dimethylformamide. The catalytic activity and product selectivity depend on temperature and water content of the solvent. ...

Royal Society of Chemistry2014

Ni2P enhances the activity and durability of the Pt anode catalyst in direct methanol fuel cells

Xile Hu, Ligang Feng

Pt is the state-of-the-art anode catalyst in direct methanol fuel cells. Here we report that Ni2P promotes the activity and stability of Pt in electrochemical methanol oxidation. Nanoparticles of Ni2P and Pt were co-deposited on a carbon support and their ...

Royal Society of Chemistry2014

Mild and Phosphine-Free Iron-Catalyzed Cross-Coupling of Nonactivated Secondary Alkyl Halides with Alkynyl Grignard Reagents

Xile Hu, Peng Ren, Chi Wai Cheung

A simple protocol for iron-catalyzed cross-coupling of nonactivated secondary alkyl bromides and iodides with alkynyl Grignard reagents at room temperature has been developed. A wide range of secondary alkyl halides and terminal alkynes are tolerated to af ...

American Chemical Society2014

Mechanistic Insights into Nickamine-catalyzed Alkyl-Alkyl Cross-coupling Reactions

Xile Hu, Jan Breitenfeld

Within the last decades the transition metal-catalyzed cross-coupling of non-activated alkyl halides has significantly progressed. Within the context of alkyl-alkyl cross-coupling, first row transition metals spanning from iron, over cobalt, nickel, to cop ...

Schweizerische Chemische Gesellschaft2014

Iron- Catalyzed 1,2-Addition of Perfluoroalkyl Iodides to Alkynes and Alkenes

Xile Hu, Chi Wai Cheung, Tao Xu

Iron catalysis has been developed for the intermolecular 1,2-addition of perfluoroalkyl iodides to alkynes and alkenes. The catalysis has a wide substrate scope and high functional-group tolerance. A variety of perfluoroalkyl iodides including CF3I can be ...

Wiley-Blackwell2014

Hydrogen evolution from a copper(I) oxide photocathode coated with an amorphous molybdenum sulphide catalyst

Michael Graetzel, Xile Hu, Heron Vrubel, Stanley David Tilley, Carlos Gilberto Morales Guio

Concerns over climate change resulting from accumulation of anthropogenic carbon dioxide in the atmosphere and the uncertainty in the amount of recoverable fossil fuel reserves are driving forces for the development of renewable, carbon-neutral energy tech ...

Nature Publishing Group2014

Suzuki-Miyaura Cross-Coupling Reactions of Unactivated Alkyl Halides Catalyzed by a Nickel Pincer Complex

Xile Hu, Nicolas Francis Michel Boutin, Thomas Clément Di Franco

A nickel(II) pincer complex, [((N2N)-N-Me)Ni-Cl], was used to catalyze alkyl-alkyl and alkyl-aryl Suzuki-Miyaura coupling reactions of unactivated alkyl halides. The coupling of 9-alkyl-9-borabicyclo[3.3.1]nonane and 9-phenyl-9-borabicyclo[3.3.1]nonane rea ...

Georg Thieme Verlag2013

Low-cost industrially available molybdenum boride and carbide as “platinum-like” catalysts for the hydrogen evolution reaction in biphasic liquid systems

Hubert Girault, Kurt Schenk, Xile Hu, Véronique Amstutz, Heron Vrubel, Micheal Diarmaid Scanlon

Rarely reported low-cost molybdenum boride and carbide microparticles, both of which are available in abundant quantities due to their widespread use in industry, adsorb at aqueous acid–1,2-dichloroethane interfaces and efficiently catalyse the hydrogen ev ...

Royal Soc Chemistry2013

Reversible Dimerization of Mononuclear Models of [Fe]-hydrogenase

Xile Hu, Dafa Chen, Bowen Hu

Wiley-V C H Verlag Gmbh2013

Revealing and Accelerating Slow Electron Transport in Amorphous Molybdenum Sulphide Particles for Hydrogen Evolution Reaction

Michael Graetzel, Xile Hu, Heron Vrubel, Thomas Moehl

Electrochemical impedance spectroscopy is used to identify a slow electron transport process in hydrogen evolution catalysed by amorphous molybdenum sulphides on glassy carbon. A new chemical synthesis leads to an amorphous molybdenum sulfide catalyst with ...

Royal Society of Chemistry2013

Bimetallic Oxidative Addition Involving Radical Intermediates in Nickel-Catalyzed Alkyl-Alkyl Kumada Coupling Reactions

Jesus Ruiz, Matthew Wodrich, Xile Hu, Jan Breitenfeld

Many nickel-based catalysts have been reported for cross-coupling reactions of nonactivated alkyl halides. The mechanistic understanding of these reactions is still primitive. Here we report a mechanistic study of alkyl-alkyl Kumada coupling catalyzed by a ...

American Chemical Society2013

Growth and Activation of an Amorphous Molybdenum Sulfide Hydrogen Evolving Catalyst

Xile Hu, Heron Vrubel

Amorphous molybdenum sulfide films, prepared by electrodeposition, are a class of highly active catalysts for hydrogen evolution. The growth mechanism of the films and the true active species were unclear. Herein, we report a study of the growth and activa ...

American Chemical Society2013

Organic molecules as mediators and catalysts for photocatalytic and electrocatalytic CO2 reduction

Xile Hu, Yeonji Oh

Reduction of CO2 by electrochemical and photoelectrochemical methods to produce carbon-rich fuels is a heavily pursued research theme. Most of the current efforts are focused on the development of transition-metal-based catalysts. In this tutorial review, ...

Royal Society of Chemistry2013

[Fe]-hydrogenase and Models Containing An Iron-Acyl Ligation

Xile Hu, Dafa Chen

[Fe]-hydrogenase is a newly characterized type of hydrogenase. This enzyme heterolytically splits hydrogen in the presence of a natural substrate. The active site of the enzyme contains a mono-iron complex with intriguing ironacyl ligation. Several groups ...

Wiley-V C H Verlag Gmbh2013

Electronic Elements Governing the Binding of Small Molecules to a [Fe]-hydrogenase Mimic

Matthew Wodrich, Xile Hu

[Fe]-hydrogenase, one of three types of hydrogenases, activates molecular hydrogen. Here, using DFT computations, we examine the electronic elements governing the binding of small ligands to a recently synthesized [Fe]-hydrogenase biomimic. Computed reacti ...

Wiley-Blackwell2013

Hydrogen evolution across nano-Schottky junctions at carbon supported MoS2 catalysts in biphasic liquid systems

Hubert Girault, Marco Cantoni, Xile Hu, Heron Vrubel, Peiyu Ge, Micheal Diarmaid Scanlon, Pekka Eero Peljo

The activities of a series of MoS2-based hydrogen evolution catalysts were studied by biphasic reactions monitored by UV/Vis spectroscopy. Carbon supported MoS2 catalysts performed best due to an abundance of catalytic edge sites and strong electronic coup ...

Royal Society of Chemistry2012

Nickel-catalyzed diastereoselective alkyl-alkyl Kumada coupling

Pablo Marcelo Perez Garcia, Alessio Orsino, Xile Hu, Peng Ren, Thomas Clément Di Franco

A nickel pincer complex is found to catalyze alkyl–alkyl Kumada coupling reactions of 1,3- and 1,4-substituted cyclohexyl halides and tetrahydropyrans with an excellent diastereoselectivity. The mechanistic investigation of the coupling reactions provides ...

American Chemical Society2012

Biphasic water splitting by osmocene

Hubert Girault, Anne-Clémence Corminboeuf, Xile Hu, Manuel Alejandro Méndez Agudelo, Imren Hatay, Heron Vrubel, Peiyu Ge, Astrid Johana Olaya Avendano

The photochemical reactivity of osmocene in a biphasic water-organic solvent system has been investigated to probe its water splitting properties. The photoreduction of aqueous protons to hydrogen under anaerobic conditions induced by osmocene dissolved in ...

National Academy of Sciences2012

Copper-catalyzed cross coupling of functionalized alkyl halides and tosylates with secondary and tertiary alkyl Grignard reagents

Xile Hu, Lucas-Alexandre Stern, Peng Ren

A copper-based method is highly efficient for the cross-coupling of alkyl electrophiles with secondary and tertiary alkyl Grignard reagents. The method is distinguished by its broad substrate scope and high functional group tolerance. ...

Wiley-VCH Verlag GmbH2012

Molybdenum boride and carbide catalyze hydrogen evolution in both acidic and basic solutions

Xile Hu, Heron Vrubel

Molybdenum boride (MoB) and carbide (Mo2C) are excellent catalysts for electrochemical hydrogen evolution at both pH 0 and pH 14. ...

Wiley-VCH Verlag GmbH2012

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