California Institute of Technology

University of California

Lawrence Berkeley National Laboratory

Aniketa A Shinde

John M Gregoire

Dan W Guevarra

Santosh K Suram

Lan Zhou

Joel A Haber

Jian Jin

Chengxiang Xiang

Ryan J Jones

Slobodan Mitrovic

Martin R Marcin

An oxygen evolution reaction catalyst is a ternary metal oxide that includes Mn and is represented by MnSbOin the rutile crystal phase and MMnOwhere M is selected from the group consisting of Ca, Ni, Sr, Zn, Mg, Ni, Ba, Co and where u/(u+v) is greater than 33%.

Oxygen evolution reaction catalysis

A composition of matter includes an n-type semiconductor. At least a portion of the semiconductor has the crystal structure of the chemical compound represented by FeWO. The portion of the semiconductor having the crystal structure of FeWOincludes iron and tungsten. A photoanode can have a light-absorbing layer that includes or consists of the semiconductor. A solar fuels generator can include the photoanode.

Semiconductor suitable for use in photoanode

Electrochemical or electrochemical and photochemical experiments are performed on a collection of samples by suspending a drop of electrolyte solution between an electrochemical experiment probe and one of the samples that serves as a test sample. During the electrochemical experiment, the electrolyte solution is added to the drop and an output solution is removed from the drop. The probe and collection of samples can be moved relative to one another so the probe can be scanned across the samples.

Scanning drop sensor

An Oxygen Evolution Reaction (OER) catalyst includes a metal oxide that includes oxygen, cerium, and one or more second metals. In some instances, the cerium is 10 to 80 molar % of the metals in the metal oxide and/or the catalyst includes two or more second metals. The OER catalyst can be included in or on an electrode. The electrode can be arranged in an oxygen evolution system such that the Oxygen Evolution Reaction occurs at the electrode.

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Upland, CA, United States of America

Aniketa A Shinde