Influence of formic acid on electrochemical properties of high-porosity Pt/TiN nanoparticle aggregates

Takashi Ogi; Ratna Balgis; Kikuo Okuyama; Naoko Tajima; Heru Setyawan

doi:10.1002/aic.14065

Influence of formic acid on electrochemical properties of high-porosity Pt/TiN nanoparticle aggregates

Takashi Ogi^*, Ratna Balgis, Kikuo Okuyama, Naoko Tajima, Heru Setyawan

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

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/TiN_w/HCOOH) was 87.15 m²/g-Pt, which was higher than that of Pt/TiN without HCOOH (Pt/TiN_w/o-HCOOH). The catalytic durability of Pt/TiN_w/HCOOH was twice that of Pt/TiN_w/o-HCOOH. An effective strategy for obtaining carbon-free catalysts with high activities and durabilities was identified.

Original language	English
Pages (from-to)	2753-2760
Number of pages	8
Journal	AICHE Journal
Volume	59
Issue number	8
DOIs	https://doi.org/10.1002/aic.14065
Publication status	Published - Aug 2013

Keywords

Aerosols
Catalysis
Drying
Electrochemistry
Nanotechnology

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title = "Influence of formic acid on electrochemical properties of high-porosity Pt/TiN nanoparticle aggregates",

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 m2/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.",

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AU - Ogi, Takashi

AU - Balgis, Ratna

AU - Okuyama, Kikuo

AU - Tajima, Naoko

AU - Setyawan, Heru

PY - 2013/8

Y1 - 2013/8

N2 - 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 m2/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.

AB - 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 m2/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.

KW - Aerosols

KW - Catalysis

KW - Drying

KW - Electrochemistry

KW - Nanotechnology

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ER -

Influence of formic acid on electrochemical properties of high-porosity Pt/TiN nanoparticle aggregates

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Keywords

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