University of California

Harvard College

Luminoz, Inc.

Facebook, Inc.

Lattice Semiconductor Corporation

Membrane Technology and Research, Inc

United States Environmental Protection Agency

Yu Huang

Xiangfeng Duan

Charles M Lieber

Yi Cui

Richard W Baker

Michael Steven Vernal

Ming Hua

Avichal Garg

Alex Himel

Dan Ionut Fechete

Tiem Aldajani

Yang Qin

Lu D Chen

Saurabh Prafulla Chakradeo

Yuan Liu

Xu Xu

Xinpan Xiao

Adnan Malik

Mufan Li

Dharmesh A Bhatt

Hongtao Sun

Benjamin Papandrea

Om P Agrawal

Bradley A Sharpe-Geisler

Bai Yen Nguyen

Hongkun Park

Jingwei Bai

Qingqiao Wei

Jack Tim Wong

Ramin Daniels

Jennifer Ly

Wenjie Liang

Leland Morris Vane

Franklin R Alvarez

Yuxi Xu

Terence A Cooper

Ritesh Agarwal

Mark Gudiksen

Lincoln J Lauhon

Zipeng Zhao

Jianfang Wang

David C Smith

Xiaoqing Huang

Deli Wang

Zhaohui Zhong

Chengzhang Wan

Xiang Xu

Woojong Yu

Yujing Li

Jennifer H Ly

A method of forming an electrode material includes: (1) loading an electrochemically active material onto graphene sheets; (2) combining the electrochemically active material-loaded graphene sheets with holey graphene oxide sheets to form a mixture; and (3) treating the mixture under reducing conditions to form a composite including a graphene framework loaded with the electrochemically active material.

Holey graphene framework composites for ultra-high rate energy storage and methods of preparing such composites

Provided herein are catalyst materials comprising a catalyst support; and PtM' nanowires affixed to the catalyst support, wherein the PtM′ nanowires include single atomic species of M′ at exterior surfaces of the PtM′ nanowires, and M′ represents at least one metal, e.g., a metal different from Pt. Also disclosed are manufacturing methods comprising: providing initial MM′ nanowires having an initial molar ratio of M:M′, wherein M is a noble metal, and M′ is a metal different from M; subjecting the initial MM′ nanowires to electrochemical dealloying to partially remove M′ and form partially dealloyed MM′ nanowires having a subsequent molar ratio of M:M′, wherein the subsequent molar ratio of M:M′ is greater than the initial molar ratio of M:M′; and affixing the partially dealloyed MM′ nanowires to a catalyst support.

Single-atom tailoring of platinum nanocatalysts for high-performance multifunctional electrocatalysis

A ceramic aerogel includes a porous framework including interconnected double-paned wall structures of a ceramic material, wherein each double-paned wall structure includes a pair of walls spaced apart by a gap.

Double-negative-index ceramic aerogels for thermal superinsulation

An electronic or optoelectronic device includes: (1) a layer of a first material; and (2) a layer of a second material disposed on the layer of the first material, wherein the first material is different from the second material, and the layer of the first material is spaced from the layer of the second material by a gap.

Van der Waals integration approach for material integration and device fabrication

A manufacturing method includes: (1) providing M-M' nanowires, wherein M&#x2032; is at least one sacrificial metal different from M; and (2) subjecting the M-M&#x2032; nanowires to electrochemical de-alloying to form jagged M nanowires.

Ultrafine nanowires as highly efficient electrocatalysts

The present disclosure provides supercapacitors that may avoid shortcomings of current energy storage technology. Provided herein are materials and fabrication processes of such supercapacitors. In some embodiments, an electrochemical system comprising a first electrode, a second electrode, wherein at least one of the first electrode and the second electrode comprises a three dimensional porous reduced graphene oxide framework.

Graphene frameworks for supercapacitors

A method of forming a graphene-based material includes: (1) treating a mixture including an etchant and graphene oxide sheets to yield formation of holey graphene oxide sheets; (2) dispersing the holey graphene oxide sheets in a re-dispersal solvent to yield a holey graphene oxide dispersion including the holey graphene oxide sheets; and (3) treating the holey graphene oxide dispersion under reducing conditions to yield self-assembly of the holey graphene oxide sheets into a graphene-based material.

Dispersions of holey graphene materials and applications thereof

A method of forming a thin film includes: (1) providing an ink composition including nanoplates of a layered material disposed in a liquid dispersion medium; (2) applying the ink composition over a substrate to form a coating; and (3) annealing the coating to form a thin film of the layered material over the substrate.

High performance thin films from solution processible two-dimensional nanoplates

A palladium hydride nanomaterial includes nanostructures having a chemical composition represented by the formula: M-PdH, where M is at least one metal different from palladium; x has a non-zero value in the range of 0 to 5; y has a value in the range of 0 to 5; and z has a non-zero value in the range of 0 to 5.

Palladium hydride nanomaterials

In one embodiment, a method includes receiving, from a client device of a user of an online social network, an input from the user to access a card-stack interface, generating a plurality of cards, where each card comprises a suggested query referencing a query-domain associated with the online social network and one or more query-filters, and where each query-filter references one or more objects of the online social network, each card further comprising one or more search results corresponding to the suggested query, and each search result referencing an object of the online social network matching the suggested query of the card; and sending, to the client device in response to the input from the first user, the card-stack interface for display to the first user, wherein the card-stack interface comprises one or more of the generated cards.

Generating card stacks with queries on online social networks

A vertically stacked heterostructure device includes: (1) a substrate; and (2) vertically stacked layers disposed over the substrate and including (a) a source electrode including a layer of graphene; (b) a drain electrode; and (c) a semiconducting channel disposed between the source electrode and the drain electrode. During operation of the device, a current is configured to flow between the source electrode and the drain electrode through the semiconducting channel.

Vertically stacked heterostructures including graphene

A fuel cell includes: (1) an anode; (2) a cathode; and (3) an electrolyte disposed between the anode and the cathode. At least one of the anode and the cathode includes an electro-catalyst dispersed on a hybrid support, the hybrid support includes a first, carbon-based support and a second support different from the first, carbon-based support, and a weight percentage of the second support is at least 10% relative to a combined weight of the first, carbon-based support and the second support.

Highly active and durable fuel cell electro-catalyst with hybrid support

A graphene nanomesh includes a sheet of graphene having a plurality of periodically arranged apertures, wherein the plurality of apertures have a substantially uniform periodicity and substantially uniform neck width. The graphene nanomesh can open up a large band gap in a sheet of graphene to create a semiconducting thin film. The periodicity and neck width of the apertures formed in the graphene nanomesh may be tuned to alter the electrical properties of the graphene nanomesh. The graphene nanomesh is prepared with block copolymer lithography. Graphene nanomesh field-effect transistors (FETs) can support currents nearly 100 times greater than individual graphene nanoribbon devices and the on-off ratio, which is comparable with values achieved in nanoribbon devices, can be tuned by varying the neck width. The graphene nanomesh may also be incorporated into FET-type sensor devices.

Graphene nanomesh and method of making the same

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Los Angeles, CA, United States of America

Yu Huang