Catalyst-induced enhancement of direct methane synthesis in solid oxide electrolyser

Biswas, Saheli; Kulkarni, Aniruddha; Fini, Daniel; Rathore, Shambhu Singh; Seeber, Aaron; Giddey, Sarbjit; Bhattacharya, Sankar

doi:10.1016/j.electacta.2021.138934

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Electrolytes1

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Cited by 6 publications

(1 citation statement)

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“…The solid electrolytes are frequently utilized at high temperatures. [108][109][110][111][112][113][114][115] This section focuses primarily on analyzing the influence of liquid electrolytes on methane oxidation at room temperature. Liquid electrolytes are crucial for enabling ion mobility and creating a conducive reaction environment.…”

Section: Electrolytesmentioning

confidence: 99%

Recent advances in ambient electrochemical methane conversion to oxygenates using metal oxide electrocatalysts

Liu,

Yan,

Chen

et al. 2024

Green Chem.

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Section: Electrolytesmentioning

confidence: 99%

Recent advances in ambient electrochemical methane conversion to oxygenates using metal oxide electrocatalysts

Liu,

Yan,

Chen

et al. 2024

Green Chem.

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Evaluation of novel ZnO–Ag cathode for CO2 electroreduction in solid oxide electrolyser

Biswas

Kulkarni

Seeber

et al. 2022

J Solid State Electrochem

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CO2 and steam/CO2 electroreduction to CO and methane in solid oxide electrolytic cells (SOEC) has gained major attention in the past few years. This work evaluates, for the very first time, the performance of two different ZnO–Ag cathodes: one where ZnO nanopowder was mixed with Ag powder for preparing the cathode ink (ZnOmix–Ag cathode) and the other one where Ag cathode was infiltrated with a zinc nitrate solution (ZnOinf –Ag cathode). ZnOmix–Ag cathode had a better distribution of ZnO particles throughout the cathode, resulting in almost double CO generation while electrolysing both dry CO2 and H2/CO2 (4:1 v/v). A maximum overall CO2 conversion of 48% (in H2/CO2) at 1.7 V and 700 °C clearly indicated that as low as 5 wt% zinc loading is capable of CO2 electroreduction. It was further revealed that for ZnOinf –Ag cathode, most of CO generation took place through RWGS reaction, but for ZnOmix–Ag cathode, it was the synergistic effect of both RWGS reaction and CO2 electrolysis. Although ZnOinf –Ag cathode produced trace amount of methane at higher voltages, with ZnOmix–Ag cathode, there was absolutely no methane. This seems to be due to strong electronic interaction between Zn and Ag that might have suppressed the catalytic activity of the cathode towards methanation.

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Fe-Ce0.1Zr0.9O2-Ag electrode for one-step methane synthesis in solid oxide electrolyser

Biswas

Kulkarni

Seeber

et al. 2021

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Catalyst-induced enhancement of direct methane synthesis in solid oxide electrolyser

Cited by 6 publications

References 50 publications

Recent advances in ambient electrochemical methane conversion to oxygenates using metal oxide electrocatalysts

Recent advances in ambient electrochemical methane conversion to oxygenates using metal oxide electrocatalysts

Evaluation of novel ZnO–Ag cathode for CO2 electroreduction in solid oxide electrolyser

Fe-Ce0.1Zr0.9O2-Ag electrode for one-step methane synthesis in solid oxide electrolyser

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