Lawrence Livermore National Security, LLC

University of California

Purdue Research Foundation

Virginia Polytechnic Institute and State University

University Of São Paulo

Lawrence Livermore National Laboratory, LLC

Marcus A Worsley

Theodore F Baumann

Joshua D Kuntz

Joe H Satcher, Jr

Eric B Duoss

Patrick G Campbell

Juergen Biener

Swetha Chandrasekaran

Christopher M Spadaccini

James S Oakdale

Matthew Merrill

Klint Aaron Rose

Sarah Elyse Baker

Alexander E Gash

Cheng Zhu

Sergei Kucheyev

Jianchao Ye

Elizabeth Montalvo

Sangil Kim

Christine A Orme

James Lewicki

Peter J Pauzauskie

Supakit Charnvanichborikarn

Elijah Tylski

William E Mickelson

Monika Margarete Biener

Ryan Hensleigh

Tammy Olson

Leta Woo

Alexander K Zettl

Roger D Aines

Michael Stadermann

Joshuah K Stolaroff

Richard L Landingham

Andrew J Pascall

Alex V Hamza

Fang Qian

Xiaoyu Zheng

Kyle T Sullivan

Jennifer Marie Knipe

Thomas E Felter

Congwang Ye

Elaine Lee

Yinmin Wang

Thomas Yong Han

Zhen Qi

Jeffrey Colvin

Robert A Reibold

Seth Evan Watts

James T Cahill

Thomas Yong-Jin Han

Swanee Shin

Michael Rousseas

Ryan Lu

Wyatt L Du Frane

Victor Alfred Beck

Jonathan C Crowhurst

Eric W Reed

Caitlyn Christian Cook

Carlos J Martinez

Wen Chen

Anna P Goldstein

Octavio Cervantes

Randall L Simpson

Alex Zettl

Bryan D Moran

Jennifer Nicole Rodriguez

Scott K Mccall

Julie A Jackson

Alexander A Baker

William Smith

Maira Ceron Hernandez

Anna Nikolaevna Ivanovskaya

Anthony W Van Buuren

Michael J King

Jinkyu Han

Siwei Liang

Daniel Tortorelli

Joe Satcher

Jonathan R I Lee

Matthew A Worthington

Jonathan Tesner Davis

Maira Raquel Ceron Hernandez

Jean-Baptiste Forien

Monika A Biener

Elias Paiva Ferreira Neto

Ubirajara Pereira Rodrigues Filho

Amy Wat

Pui Ching Lan

Maira Raquel Cerón Hernández

In one embodiment, an ink includes a polymer precursor, a copolymer, a catalyst, and a solvent. In another embodiment, a product includes a three-dimensional printed structure having ligaments, where an average diameter of the ligaments is in a range of about 10 microns to about 500 microns.

Additive manufacture of hierarchically porous materials with high resolution

Disclosed are flow-through electrode devices and techniques for making flow-through electrodes. In one aspect, a flow through electrode apparatus comprises one or more fiber layers. Each fiber layer comprises a plurality of fibers oriented to be orthogonal to a flow direction of a fluid. The plurality of fibers are configured to cause an inertial flow of the fluid around the plurality of fibers at a first flow rate of the fluid.

Inertially enhanced mass transport using porous flow-through electrodes with periodic lattice structures

A method includes acquiring a three-dimensional printed template created using an additive manufacturing technique, infilling the template with an aerogel precursor solution, allowing formation of a sol-gel, and converting the sol-gel to an aerogel.

Tailoring of pores in aerogels using 3D printed structures

An aerogel includes a three-dimensional printed structure having printed ligaments geometrically arranged, where an average diameter of the printed ligaments is in a range of greater than 0 microns and less than 50 microns. In addition, an average distance between a center of a first of the printed ligaments and a center of a second of the printed ligaments is at least equal to the average diameter of the printed ligaments, where the first and the second of the printed ligaments are adjacent. Each printed ligament includes of a plurality of random pores, where an average diameter of the random pores is less than 50 nanometers.

Base-catalyzed sol-gel inks for direct ink writing of high resolution hierarchically porous carbon aerogels

A semi-passive cooling system for a component exposed to a fluid flow utilizes a hierarchical vasculature and a sacrificial transpirant to cool the component. The component includes a body that defines a transpirant reservoir and the hierarchical vasculature. The transpirant is configured to transition between a solid phase and a vapor phase over an operating temperature range of the component.

Semi-passive cooling using hierarchical vasculature

Disclosed are electrochemical reactors with electrodes that have variable porosity across the electrode. The electrodes are designed and micro-architected to have variable porosity and 3D flow. In one aspect, an electrochemical cell apparatus is disclosed. The apparatus includes an electrochemical vessel and an electrochemical fluid contained in the electrochemical vessel. The apparatus further includes a porous electrode submerged in the electrochemical fluid in the electrochemical vessel, the porous electrode having different porosities in different areas of the porous electrode. The different porosities inhibit electrochemical fluid flow and increase electrical conductivity in first areas of the porous electrode with decreased porosity compared to second areas, and enable increased electrochemical fluid flow and decrease electrical conductivity in the second areas of the porous electrode with increased porosity compared to the first areas.

Micro-architected flow through electrodes for energy storage

In one inventive concept, an ink includes a precursor of a graphene analogue, a thickener, and a solvent. In another inventive concept, an ink includes a graphene analogue, a thickener, and a solvent. In yet another inventive concept, an aerogel includes a three-dimensional printed structure having printed features comprised of two dimensional sheets of a graphene analogue.

Products having sheets of 2D materials and related inks for direct ink writing

In accordance with one aspect of the presently disclosed inventive concepts, a metal aerogel includes a plurality of metal nanowires formed into a porous three-dimensional structure, where pores in the structure are anisotropic.

Ultralight conductive metallic aerogels

The production of a porous copper-zinc structure includes providing copper ink, creating a 3D model of the porous copper-zinc structure, 3D printing the copper ink into a porous copper lattice structure using the 3D model, heat treatment of the porous copper lattice structure producing a heat treated porous copper lattice structure, surface modification of the heat treated porous copper lattice structure by nanowires growth on the heat treated porous copper lattice structure producing a heat treated porous copper lattice structure with nanowires, and electrodeposition of zinc onto the heat treated porous copper lattice structure with nanowires to produce the porous copper-zinc structure.

Fabrication of 3D-printed copper based zinc anodes

Generation of energy and storage of energy for subsequent use is provided by electromethanogenesis of carbon dioxide into a fuel gas and the storage of the fuel gas for subsequent use. An electromethanogenic reactor includes an anode conductor and a cathode conductor wherein the cathode conductor includes submicron to micron scale pores. Electromethanogenesis microbes and/or enzymes are located in the micron scale pores of the cathode electrode conductor. Carbon dioxide is introduced into the electromethanogenic reactor and the electromethanogenesis microbes/enzymes and the carbon dioxide interact and produce a fuel gas. The fuel gas is stored for subsequent use, for example use in power generation.

Electromethanogenesis reactor

Disclosed here is a method for making a three-dimensional micro-architected aerogel, comprising: (a) curing a reaction mixture comprising a co-sol-gel material (e.g., graphene oxide (GO)) and at least one catalyst to obtain a crosslinked co-sol-gel (e.g., GO hydrogel); (b) providing a photoresin comprising a solvent, a photoinitiator, a crosslinkable polymer precursor, and a dispersion of the crosslinked co-sol-gel (e.g., GO hydrogel); (c) curing the photoresin using projection microstereolithography layer-by-layer to produce a wet gel having a pre-designed three-dimensional structure; (d) drying the wet gel to produce a dry gel; and (e) pyrolyzing the dry gel to produce a three-dimensional micro-architected aerogel (e.g., graphene aerogel). Also disclosed is a photoresin for projection microstereolithography, comprising a solvent, a photoinitiator, a crosslinkable polymer precursor, and a dispersion of a crosslinked co-sol-gel.

Additive manufacturing of hierarchical three- dimensional micro-architected aerogels

According to one aspect of an inventive concept, an ink includes a base catalyst, a sol gel precursor composition, and a block copolymer. According to another aspect of an inventive concept, an aerogel includes a three-dimensional printed structure having printed ligaments geometrically arranged, where an average diameter of the printed ligaments is in a range of greater than 0 microns and less than 50 microns. In addition, an average distance between a center of a first of the printed ligaments and a center of a second of the printed ligaments is at least equal to the average diameter of the printed ligaments, where the first and the second of the printed ligaments are adjacent. Each printed ligament includes of a plurality of random pores, where an average diameter of the random pores is less than 50 nanometers.

Disclosed here is a method for making an architected three-dimensional aerogel, comprising providing a photoresin comprising a solvent, a photoinitiator, a crosslinkable polymer precursor, and a precursor for graphene, metal oxide or metal chalcogenide; curing the photoresin using projection microstereolithography layer-by-layer to produce a wet gel having a pre-designed three dimensional structure; drying the wet gel to produce a dry gel; and pyrolyzing the dry gel to produce an architected three-dimensional aerogel. Also disclosure is a photoresin for projection microstereolithography, comprising a solvent, a photoinitiator, a crosslinkable polymer precursor, and graphene oxide.

Architected three dimensional graphene via additive manufacturing

An ink, and products formed from the ink, formulated at least in part from ceramic particles. The ink is formulated so that it can be used in additive manufacturing processes to form three-dimensional printed bodies. The three-dimensional printed bodies can have graded density and can be infiltrated by an infiltration material.

Three-dimensional printing of ceramic materials

According to one inventive concept, a method for forming an aerogel includes forming a SiOgel, forming a mixture of the SiOgel and a TiCl-derived precursor sol, wherein the TiClsol is comprised of TiCland a solvent, forming a SiO/TiOwet gel, drying the SiO/TiOwet gel, and heating the dried SiO/TiOgel.

Preparation of SiO&#x2014;TiOcomposite aerogels and SiO@TiOcore-shell aerogels with high thermal stability and enhanced photocatalysis

Growing community of inventors

Hayward, CA, United States of America

Marcus A Worsley