公开(公告)号：US20230220273A1

公开(公告)日：2023-07-13

申请号：US17791362

申请日：2022-02-11

Applicant: University of South Florida

Inventor： Elias K. STEFANAKOS ,  Sesha S. SRINIVASAN

IPC: C09K9/02 ,  B01J13/06 ,  B01J19/12 ,  C04B14/36 ,  C04B16/00 ,  C04B20/10 ,  C04B26/02 ,  C04B28/04

CPC classification number: C09K9/02 ,  B01J13/06 ,  B01J19/122 ,  C04B14/36 ,  C04B16/00 ,  C04B20/1066 ,  C04B26/02 ,  C04B28/04 ,  B01J2219/0879 ,  B01J2219/0892 ,  B01J2219/1203

Abstract: Structures of a particle containing a core and at least one shell, a metal oxide material of which is necessarily doped to ensure protection of a material of the core from photodegradation. The core can include any of a thermochromic material, a phase-change material, and a judiciously defined auxiliary material that in turn contains organic and/or polymeric material. Derivative products utilizing a plurality of such particles. Methodologies for producing such particles and derivative products.

公开(公告)号：US20220315832A1

公开(公告)日：2022-10-06

申请号：US17838450

申请日：2022-06-13

Applicant: University of South Florida

Inventor： Manoj Kumar RAM ,  Elias K. STEFANAKOS

IPC: C09K9/02 ,  B01J13/06 ,  B01J19/12 ,  C04B14/36 ,  C04B16/00 ,  C04B20/10 ,  C04B26/02 ,  C04B28/04

Abstract: A variety of particles forming microencapsulated thermochromic materials. The particles can include a thermochromic core and a metal oxide shell encapsulating the thermochromic core. The thermochromic core can include one or both of an organic thermochromic material and an inorganic salt thermochromic material. In some aspects, the particles include a dye selected from a crystal violet lactone dye, a fluoran dye, and a combination thereof. In still further aspects, the particles include a color developer selected from a hydroxybenzoate, a 4,4′-dihydroxydiphenyl propane, a hydroxycoumarin derivative, a lauryl gallate, and a combination thereof. In some aspects, the metal oxide shell is a TiO2 shell. The particles can be used in cements and paints and for a variety of building materials. Methods of making the particles and building materials and methods of use, for example, for removing a volatile organic carbon from a building material, are also provided.

公开(公告)号：US20240067871A1

公开(公告)日：2024-02-29

申请号：US18503099

申请日：2023-11-06

Applicant: UNIVERSITY OF SOUTH FLORIDA

Inventor： Elias K. STEFANAKOS ,  Sesha S. SRINIVASAN

IPC: C09K9/02 ,  B01J13/06 ,  B01J19/12 ,  C04B14/36 ,  C04B16/00 ,  C04B20/10 ,  C04B26/02 ,  C04B28/04

CPC classification number: C09K9/02 ,  B01J13/06 ,  B01J19/122 ,  C04B14/36 ,  C04B16/00 ,  C04B20/1066 ,  C04B26/02 ,  C04B28/04 ,  B01J2219/0879 ,  B01J2219/0892 ,  B01J2219/1203

Abstract: Structures of a particle containing a core and at least one shell, a metal oxide material of which is necessarily doped to ensure protection of a material of the core from photodegradation. The core can include any of a thermochromic material, a phase-change material, and a judiciously defined auxiliary material that in turn contains organic and/or polymeric material. Derivative products utilizing a plurality of such particles. Methodologies for producing such particles and derivative products.

公开(公告)号：US20230213831A1

公开(公告)日：2023-07-06

申请号：US18040867

申请日：2021-08-09

Applicant: UNIVERSITY OF SOUTH FLORIDA

Inventor： Elias K. STEFANAKOS ,  Sharan Kumar INDRAKAR ,  Arash TAKSHI

IPC: G02F1/1523 ,  G02F1/155

CPC classification number: G02F1/1525 ,  G02F1/155 ,  G02F2001/164

Abstract: The use of materially-asymmetric electrodes in an electro-chromic (EC) cell having a single active layer that employs a water-based gel electrolytic material solves a problem that is exhibited during operation of conventionally-structured devices and that is caused by electrolysis of water in the gel and formation of gas bubbles inside the conventionally-structured devices, thereby substantially increasing the number of operational cycles such devices can be subjected to.