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    RADIATIVELY RECUPERATED REACTOR SYSTEM AND RELATED METHODS, SUCH AS CHEMICAL LOOPING PROCESSES
    2.
    发明申请
    RADIATIVELY RECUPERATED REACTOR SYSTEM AND RELATED METHODS, SUCH AS CHEMICAL LOOPING PROCESSES 有权

    公开(公告)号：US20240424470A1

    公开(公告)日：2024-12-26

    申请号：US18294831

    申请日：2022-08-05

    Applicant: Massachusetts Institute of Technology

    Inventor： Aniket Sanjay Patankar ,  Ahmed Fouad Ghoniem ,  Xiao Yu Wu ,  Wonjae Choi ,  Harry L. Tuller

    IPC: B01J19/24

    Abstract: What is disclosed relates to a novel reactor system design for chemical looping solar fuel production processes incorporating temperature swing between two or more zones, wherein two or more individual reactors are employed, and heat is recuperated between the reactors by means including radiative heat exchange. Each individual reactor comprising the overall system is isolated from other reactors and the external environment for gas exchange purposes, so that the inflow and outflow of chemical species from individual reactors can be controlled. Individual reactors are arranged in the form of a moving train, and heat exchange between a pair of reactors is facilitated by radiative exchange. External heat addition and removal between the system and its environment may be achieved by means including radiative heat exchange with the hot source and convective exchange with the cold source. This may include, in a particular embodiment, the use of solar irradiation. The disclosure also includes procedures for operating such a system.

    Optoelectronic memristor devices including one or more solid electrolytes with electrically controllable optical properties
    3.
    发明授权
    Optoelectronic memristor devices including one or more solid electrolytes with electrically controllable optical properties 有权

    公开(公告)号：US10910559B2

    公开(公告)日：2021-02-02

    申请号：US16427597

    申请日：2019-05-31

    Applicant: Massachusetts Institute of Technology

    Inventor： Thomas Defferriere ,  Dmitri Kalaev ,  Harry L. Tuller ,  Jennifer Lilia Rupp

    IPC: G11C13/00 ,  G11C13/04 ,  H01L45/00

    Abstract: An optoelectronic memristor includes a first electrode, a second electrode, and a solid electrolyte in between that is in electrical communication with the first electrode and the second electrode. The solid electrolyte has an electronic conductivity of about 10−10 Siemens/cm to about 10−4 Siemens/cm at room temperature. The first electrode, and optionally the second electrode, can be optically transparent at a specific wavelength and/or a wavelength range. A direct current (DC) voltage source is employed to apply an electric field across the solid electrolyte, which induces a spatial redistribution of ionic defects in the solid electrolyte. In turn, this causes a change in electrical resistance of the solid electrolyte. The application of the electric field can also cause a change in an optical property of the solid electrolyte at the specific wavelength, and/or at the wavelength range (or a portion thereof).

    MIXED-IONIC-ELECTRONIC-CONDUCTING OXIDES TREATED TO MEDIATE, PREVENT, OR REVERSE POISONING AND/OR ENHANCE PERFORMANCE
    6.
    发明申请
    MIXED-IONIC-ELECTRONIC-CONDUCTING OXIDES TREATED TO MEDIATE, PREVENT, OR REVERSE POISONING AND/OR ENHANCE PERFORMANCE 有权

    公开(公告)号：US20250105307A1

    公开(公告)日：2025-03-27

    申请号：US18729848

    申请日：2023-04-05

    Applicant: Massachusetts Institute of Technology

    Inventor： Harry L. Tuller ,  Clement Nicollet ,  Anna F. Staerz ,  Han Gil Seo

    IPC: H01M4/90 ,  H01M4/86

    Abstract: Some aspects of the present disclosure are related to modified electrodes, for example, for use in fuel cells. In some cases, the electrode may comprise a mixed-ionic-electronic-conducting (MIEC) oxide and a basic oxide. In some cases, the basic oxide may alter the electron density of the MIEC oxide and improve its catalytic performance, for example, like the oxygen reduction reaction. For instance, the catalytic performance of a MIEC oxide comprising a perovskite towards the oxygen reduction reaction (ORR) may be improved by using a basic oxide comprising CaO and/or Li2O. Some aspects disclosed herein are directed to methods of preventing or treating chromia or silica poisoning of a MIEC oxide, wherein the method comprises treating the MIEC electrode with a basic oxide infiltrant.

    Reprogrammable electro-chemo-optical devices and methods for using the same
    7.
    发明授权
    Reprogrammable electro-chemo-optical devices and methods for using the same 有权

    公开(公告)号：US11048136B2

    公开(公告)日：2021-06-29

    申请号：US16260860

    申请日：2019-01-29

    Applicant: Massachusetts Institute of Technology

    Inventor： Dmitri Kalaev ,  Harry L. Tuller

    IPC: G02F1/1524 ,  G02F1/163

    Abstract: Reconfigurable, active optical components can flexibly manipulate light. One example of these components is an electro-chemo-optical device that utilizes a metal oxide film with a complex refractive index that varies as a function of an oxygen vacancy concentration. The optical device may include a metal oxide film, a first electrode, and a second electrode. The first electrode and the second electrode may be used to supply a bias voltage to induce a change in the oxygen vacancy concentration in order to change the optical properties (absorbance, transmittance, and/or reflectance) of the optical device. The magnitude and spatial distribution of the oxygen vacancy concentration may be altered to affect the optical properties of the optical device. In some designs, the optical device may also include an ionic conductor and oxygen source to supply/receive oxygen ions to/from the metal oxide film.

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