Pt/CNT Methane Catalyst

High yield at 5 °C

Ultrasound-coupling strategy enables efficient conversion of methane to valuable oxygenates under mild conditions.

Zhang, Yunlong · Tu, Yunchuan · Chen, Shiming · Cui, Xiaoju · Zan, Lingxing · Li, Mingrun · Hu, Jingting · Yu, Liang · Deng, Dehui

Nature Communications 2026

Specifications

Formation rate

{'zh': '3727', 'en': '3727'} μmol gcat.−1 h−1

Selectivity

{'zh': '92', 'en': '92'} %

Advantages

High selectivity at low temperature

Achieves 92% selectivity for C1-2 oxygenates at 5 °C, avoiding side reactions at elevated temperatures.

Surface cleaning boosts activity

Ultrasound-driven surface cleaning effect enhances the exposure of active Pt sites, facilitating the adsorption of CH4 and O2.

Cavitation microenvironment promotes activation

Localized transient high temperature and pressure from cavitation promote C-H cleavage and C-O coupling, and accelerate mass transfer.

Applications

• Methane oxidation：Converts methane to valuable oxygenates under mild conditions, replacing high-temperature, high-pressure processes.
• C1 chemistry：Directly synthesizes C1-2 oxygenates from C1 feedstock, simplifying reaction pathways.
• CNT-supported catalysts：CNT support combined with ultrasonic cavitation enhances active component dispersion and mass transfer.