Nanosys, Inc.

Oned Material, Inc.

Samsung Electronics Co., Ltd.

Sharp Kabushiki Kaisha Corporation

Baixin Qian

William P Freeman

Joel Gamoras

Ionel C Stefan

Erik C Scher

Jeffery A Whiteford

Mihai A Buretea

Jay L Goldman

Yimin Zhu

J Wallace Parce

Robert S Dubrow

Andreas Meisel

Shihai Kan

Jonathan M Ziebarth

Paul Bernatis

Jeffrey A Whiteford

Hirotaka Mizuhata

Takenori Onishi

Chunming Niu

David P Stumbo

Jason T Hartlove

Vijendra Sahi

Hans Jurgen Hofler

Masashi Muraoka

Kohtaroh Saitoh

Mutsuko Komoda

The present invention relates to SiC nanostructures, including SiC nanopowder, SiC nanowires, and composites of SiC nanopowder and nanowires, which can be used as catalyst supports in membrane electrode assemblies and in fuel cells. The present invention also relates to composite catalyst supports comprising nanopowder and one or more inorganic nanowires for a membrane electrode assembly.

Nanostructured catalyst supports

The present invention relates to nanostructured materials (including nanowires) for use in batteries. Exemplary materials include carbon-comprising, Si-based nanostructures, nanostructured materials disposed on carbon-based substrates, and nanostructures comprising nanoscale scaffolds. The present invention also provides methods of preparing battery electrodes, and batteries, using the nanostructured materials.

Nanostructured materials for battery applications

Methods for producing nanostructures, particularly Group III-V semiconductor nanostructures, are provided. The methods include use of novel Group III and/or Group V precursors, novel surfactants, oxide acceptors, high temperature, and/or stable co-products. Related compositions are also described. Methods and compositions for producing Group III inorganic compounds that can be used as precursors for nanostructure synthesis are provided. Methods for increasing the yield of nanostructures from a synthesis reaction by removal of a vaporous by-product are also described.

Process for group III-V semiconductor nanostructure synthesis and compositions made using same

Process for group III-IV semiconductor nanostructure synthesis and compositions made using same

A catalyst layer for a fuel cell membrane electrode assembly includes a plurality of agglomerates, adjacent ones of the plurality of agglomerates contacting with each other with pores provided between said adjacent ones of the plurality of agglomerates, each of the plurality of agglomerates being formed by packing a plurality of catalysts each consisting of noble metal fine particles supported on a fiber-like support material, adjacent ones of the plurality of catalysts contacting with each other with pores provided between said adjacent ones of the plurality of catalysts, and each of the plurality of catalysts contacting with a plurality of catalysts other than said each catalyst at a plurality of contact points. This allows providing a catalyst layer, a fuel cell membrane electrode assembly, and a fuel cell, each of which has compact size and excellent power generation performance, and a method for producing the same.

Catalyst layer for fuel cell membrane electrode assembly, fuel cell membrane electrode assembly using the catalyst layer, fuel cell, and method for producing the catalyst layer

The present invention relates to electrochemical catalyst particles, including nanoparticles, which can be used membrane electrode assemblies and in fuel cells. In exemplary embodiments, the present invention provides electrochemical catalysts supported by various materials. Suitably the catalysts have an atomic ratio of oxygen to a metal in the nanoparticle of about 3 to about 6.

Electrochemical catalysts for fuel cells

Compositions containing a nanostructure, preferably a nanocrystal, are provided. The nanostructures have ligands bound to the surface. Such ligands are preferably siloxane containing ligands having at least one &#x2014;COON group, although ligands having various &#x2550;P&#x2550;O groups are also contemplated. The nanostructures can be embedded into a polymer such as a silicone polymer.

Nanocrystal doped matrixes

Matrixes doped with semiconductor nanocrystals are provided. In certain embodiments, the semiconductor nanocrystals have a size and composition such that they absorb or emit light at particular wavelengths. The nanocrystals can comprise ligands that allow for mixing with various matrix materials, including polymers, such that a minimal portion of light is scattered by the matrixes. The matrixes of the present invention can also be utilized in refractive index matching applications. In other embodiments, semiconductor nanocrystals are embedded within matrixes to form a nanocrystal density gradient, thereby creating an effective refractive index gradient. The matrixes of the present invention can also be used as filters and antireflective coatings on optical devices and as down-converting layers. Processes for producing matrixes comprising semiconductor nanocrystals are also provided. Nanostructures having high quantum efficiency, small size, and/or a narrow size distribution are also described, as are methods of producing indium phosphide nanostructures and core-shell nanostructures with Group II-VI shells.

Methods for producing Group 10 metal nanostructures are provided. The methods involve novel precursors, novel surfactants, or novel precursor-surfactant combinations. Compositions related to the methods are also featured.

Process for group 10 metal nanostructure synthesis and compositions made using same

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Sunnyvale, CA, United States of America

Baixin Qian