Abstract

Methods and systems for reproducible technology for the synthesis of a non platinum based palladium-chromium oxide (Pd-Cr203) loaded cadmium sulfide (CdS) photocatalyst (Pd-Cr203/CdS) for solar photocatalytic hydrogen production via an aqueous ammonium sulfite ((NH4)2SO3) solution. This process is one of the important steps in solar driven photo/thermochemical water splitting cycles. The catalyst preparation follows two steps: Firstly, palladium chloride (PdC12) was used as a precursor that was reduced with sodium borohydride (NaBH4) for the preparation of nanosized palladium metal colloid. Secondly, 0.5g of CdS semiconductor powder was 10 added into the Pd colloid to immobilize Pd-Cr203 nanoparticles onto the surface of CdS forming co-catalyst loaded CdS photocatalyst. Results show that the activity of PdICdS is significantly enhanced by Pd and Cr203 nanocomposites loaded Pd-Cr203/CdS photocatalyst.

Document Type

Patent

Patent Number

US 8,207,081 B1

Application Serial Number

12/715,759

Issue Date

6-26-2012

Current Assignee

UCFRF

Assignee at Issuance

UCFRF

College

Florida Solar Energy Center (FSEC)

Department

FSEC

Allowance Date

2-21-2012

Filing Date

3-2-2010

Assignee at Filing

UCFRF

Filing Type

Nonprovisional Application Record

Donated

no

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