Influence of formic acid on electrochemical properties of high‐porosity Pt/TiN nanoparticle aggregates. Issue 8 (19th March 2013)

• Record Type: Journal Article
• Authors: Ogi, Takashi; Balgis, Ratna; Okuyama, Kikuo; Tajima, Naoko; Setyawan, Heru
• Is Part Of: AIChE journal. Volume 59:Issue 8(2013:Aug.)
• Page Start: 2753
• Page End: 2760
• Publication Date: 2013-03-19
• Subjects: aerosols -- catalysis -- drying -- electrochemistry -- nanotechnology; Chemical engineering -- Periodicals; Génie chimique -- Périodiques; 660.28
• DOI: 10.1002/aic.14065
• Languages: English
• ISSNs: 0001-1541

Abstract

Abstract : Platinum‐deposited titanium nitride (Pt/TiN) nanoparticle aggregates with high porosities were successfully prepared via a self‐assembly‐assisted spray pyrolysis method. The addition of formic acid (HCOOH) had a significant influence on the process, promoting the simultaneous formation of metallic Pt and reduction on the surface of the TiN support material. Complete reduction of the Pt/TiN nanoparticle aggregates improved the catalytic activity. The electrochemical surface area (ECSA) of Pt/TiN with HCOOH (Pt/TiNw/HCOOH ) was 87.15 m 2 /g‐Pt, which was higher than that of Pt/TiN without HCOOH (Pt/TiNw/o‐HCOOH ). The catalytic durability of Pt/TiNw/HCOOH was twice that of Pt/TiNw/o‐HCOOH . An effective strategy for obtaining carbon‐free catalysts with high activities and durabilities was identified. © 2013 American Institute of Chemical Engineers AIChE J, 59: 2753–2760, 2013