Oxygen Electroreduction on Catalysts Containing Platinum Deposited on Carbon Nanotubes Modified by O, N and P Atoms| Chapter 8 | Research Aspects in Chemical and Materials Sciences Vol. 4

 Platinum established on scattered fabrics has been the most standard catalyst for produce cathodes for a variety of electrochemical capacity sources. The purpose of this research search out look into the effect of O, N, and P atoms on the fundamental, electrocatalytic, and corrosion possessions of as-synthesised monoplatinum catalysts. The examined Pt/CNTmod incentives demonstrated improved electrochemically active light surface area and electrical generated power, as well as raised catalytic activity in soluble electrolytes during the oxygen reduction response (ORR). The half-wave potential reaches 0.89 V for nitrogen-doped and 0.88 V for planet seen at dawn-doped CNTs, that is comparable to a commercial stimulant. The increased characteristics of Pt/CNT catalysts are related by changes in the composition and amount of groups produced on the CNT surface, in addition to their electronic construction. Pt/CNTHNO3+N and Pt/CNTHNO3+NP are the most hopeful catalysts for use as cathode materials in salty medium based on the total of the major possessions.  The influence of the platinum mass (10, 20, 40, 60 wt %) on the balance, electrochemical characteristics and the backlash path of ORR in an soluble electrolyte has been studied. The capital selectivity in ORR to water is noticed for catalysts combined on nitrogen-doped CNTs and increases due to the tumor of the Pt surface on the electrode. The closeness of hydrogen peroxide and a decrease in stability are noticed at a low content of light. Thus, according to the entirety of the results of this study, catalysts accompanying 60 and 40 wt. % Pt/CNTNaOH+N, as well as Pt/CNTHNO3+N and Pt/CNTHNO3+NP are ultimate promising stimulants for alkaline fuel cells.

Author(s) Details:

Vera Bogdanovskaya,
A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia.

Inna Vernigor,
A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia.

Marina Radina,
A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia.

Vladimir Andreev,
A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia.

Oleg Korchagin,
A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia.

Please see the link here: https://stm.bookpi.org/RACMS-V4/article/view/8697