Abstracts Book - IMRC 2018

• SC1-P021
USE OF NIPT NANOCATALYST FOR pH-INDEPENDENT OXYGEN
EVOLUTION REACTION
Adrián Velázquez Osorio 1,2 , José Luis Reyes Rodríguez 3 , Omar Solorza Feria 3
1 Instituto Politécnico Nacional - IPN, ESFM, Mexico. 2 Universidad Nacional Autónoma de
México, FCPYS-SUAED, Mexico. 3 Centro de Investigación y de Estudios Avanzados del IPN -
CINVESTAV, Chemistry, Mexico.
Water electrolysis is an attractive alternative to energy-intensive gas purification
processes to produce hydrogen and oxygen gas for use in polymeric membrane
fuel cells. Water electrolysis possesses great potential for scalability, mobility,
and clean operation; however, its efficient operation requires the aid of catalytic
materials to conduct hydrogen and oxygen evolution reactions. Platinum is the
standard catalyst used in electrolysis, but its low availability and high cost are
impediments for masive usage. Novel catalyst trends are centered on the
synthesis of highly active Pt-reduced or Pt-free materials as substitutes to Pt.
This work focused on the synthesis and evaluation of the performance of
Ni30Pt70 nanoparticles for the oxygen evolution reaction (OER). A hot-injection
chemical reduction method was used for synthesis, resulting in particles with
approximate sizes of 30 nm. Lineal voltammetries were used to evaluate the
electrochemical properties of the material. Solutions of 0.1 M KOH and 0.1
M HCLO4 were used as electrolyte media. SEM, TEM, and XRD techniques were
used to characterize the morphological and crystallographic properties of the
nanoparticles, which showed a polyhedral atomic arrangement. The high
surface area of these Pt-reduced nanoparticles allowed for OER activity that
outperformed commercial Pt/C in a basic and acidic medium, making them
making them ideal candidates for use as an anode material in water electrolysis.
Acknowledgment:
Authors thank the LANE-CINVESTAV and CNMN-IPN laboratories for their aid in
electron microscopy measurements. Financial support for this project was
possible through the Mexican Council for Science and Technology (CONACYT)
grant 245920.
Keywords: Electrolysis, OER, nanocatalyst
Presenting authors email: esfm@adrianvelazquez.com