Correction to “Electrocatalyst Performance at the Gas/Electrolyte Interface under High Mass Transport Conditions: Optimization of the ‘Floating Electrode’ Method”

Lin, Xiaoqian; Zalitis, Christopher Mark; Sharman, Jonathan; Kucernak, Anthony

doi:10.1021/acsami.0c21445

Cited by 1 publication

(1 citation statement)

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“…The process of making the floating electrodes (FE) and the electrochemical measurements followed the protocols reported, 23 and it is briefly mentioned here. For each catalyst, 2 mg of solid catalyst was suspended in 4 mL of 1:1 isopropanol (VWR, AnalaR NORMAPUR) to DI water and sonicated (BANDELIN SONOCOOL) on full power (35 kHz, 100%) at 288 K until a homogeneous ink was obtained.…”

Section: Methodsmentioning

confidence: 99%

Single‐atom Pt on carbon nanotubes for selective electrocatalysis

Hardisty,

Lin,

Kucernak

et al. 2023

Carbon Energy

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Utilizing supported single atoms as catalysts presents an opportunity to reduce the usage of critical raw materials such as platinum, which are essential for electrochemical reactions such as hydrogen oxidation reaction (HOR). Herein, we describe the synthesis of a Pt single electrocatalyst inside single‐walled carbon nanotubes (SWCNTs) via a redox reaction. Characterizations via electron microscopy, X‐ray photoelectron microscopy, and X‐ray absorption spectroscopy show the single‐atom nature of the Pt. The electrochemical behavior of the sample to hydrogen and oxygen was investigated using the advanced floating electrode technique, which minimizes mass transport limitations and gives a thorough insight into the activity of the electrocatalyst. The single‐atom samples showed higher HOR activity than state‐of‐the‐art 30% Pt/C while almost no oxygen reduction reaction activity in the proton exchange membrane fuel cell operating range. The selective activity toward HOR arose as the main fingerprint of the catalyst confinement in the SWCNTs.

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Section: Methodsmentioning

confidence: 99%