Abstract

A (H.sub.2) sensor composition includes a gas permeable matrix material intermixed and encapsulating at least one chemochromic pigment. The chemochromic pigment produces a detectable change in color of the overall sensor composition in the presence of H.sub.2 gas. The matrix material provides high H.sub.2 permeability, which permits fast permeation of H.sub.2 gas. In one embodiment, the chemochromic pigment comprises PdO/TiO.sub.2. The sensor can be embodied as a two layer structure with the gas permeable matrix material intermixed with the chemochromic pigment in one layer and a second layer which provides a support or overcoat layer.

Document Type

Patent

Patent Number

US 8,591,818 B2

Application Serial Number

11/414,900

Issue Date

11-26-2013

Current Assignee

UCFRF

Assignee at Issuance

UCFRF

College

Florida Solar Energy Center (FSEC)

Department

FSEC

Allowance Date

6-4-2013

Filing Date

5-1-2006

Assignee at Filing

UCFRF

Filing Type

Nonprovisional Application Record

Donated

no

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