Citation: Jun Luo, Yanya Liu, Jianghuaxiong Zhu, Chengxiong Wang, Yunkun Zhao, Dong Yan, Jian Li, Lichao Jia. A proton-conducting solid oxide fuel cell for co-production of ethylene and power via ethane conversion[J]. Chinese Chemical Letters, ;2025, 36(7): 110171. doi: 10.1016/j.cclet.2024.110171 shu

A proton-conducting solid oxide fuel cell for co-production of ethylene and power via ethane conversion

Jun Luo ^a ,
Yanya Liu ^a ,
Jianghuaxiong Zhu ^b ,
Chengxiong Wang ^b ,
Yunkun Zhao ^{b, *,} ,
Dong Yan ^a ,
Jian Li ^a ,
Lichao Jia ^{a, *,}

a.
School of Materials Science and Engineering, State Key Lab of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, China
b.
Kunming Sino-Platinum Metals Catalyst Co., Ltd., Kunming 650106, China

yk.zhao@spmcatalyst.com

jialc@hust.edu.cn

Received Date: 30 May 2024
Accepted Date: 24 June 2024
Available Online: 24 June 2024

Figures(5)

Ethylene (C₂H₄) is a core raw material for the petrochemical industry. It is of economic and environmental significance to use C₂H₆ as the fuel and proton-conducting solid oxide fuel cells (P-SOFC) as the reactor to co-generate electricity and C₂H₄. However, the large-sized Ni particles in the conventional Ni-cermet anode directly crack C₂H₆; and oxide materials with a mild capability of breaking CC bonds are generally limited to electrolyte-supported structures with high ohmic impedance. This research for the first time constructs an anode-supported cell using BZCY as the porous scaffold and impregnated double perovskite (PrBa)_0.95(Fe_0.8Ni_0.2)_1.8Mo_0.2O_6-δ (PBFNM0.2) as the anode electrocatalysis. FeNi3 nanoparticles exsolve from PBFNM0.2 in H₂ and uniformly distribute on the surface of perovskite substrate, acting as an active component for C₂H₆ dehydrogenation and electrochemical performance enhancement. The cell with 30 wt% PBFNM0.2 impregnated anode showing a high power density of 508 and 386 mW/cm² with H₂ and C₂H₆ fuels, respectively; high C₂H₆ conversion of 50.9%, C₂H₄ selectivity of 92.1%, and C₂H₄ yield of 46.9% are achieved at 750 ℃ and 700 mA/cm², which outperforms all previously electrolyte-supported cells for co-generated electricity and ethylene. Moreover, the cell demonstrated excellent recoverability throughout three dehydrogenation-regeneration cycles. This work provides a practical way with broad application potential to create a novel anode-supported cell efficiently realizing the co-generation of electricity and C₂H₄ from C₂H₆.
- Proton-conducting solid oxide fuel cells,
- Impregnated anodes,
- Ethane conversion,
- Ethylene,
- Power
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