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Title: A High-Performing Direct Carbon Fuel Cell with a 3D Architectured Anode Operated Below 600 °C

Journal Article · · Advanced Materials

Direct carbon fuel cells (DCFCs) are highly efficient and sustainable power generators fueled by abundant and cheap solid carbons. However, the limited formation of triple phase boundaries (TPBs) within fuel electrode inhibits their performance even at very high temperatures. To address the challenges of low carbon oxidation activity and low carbon utilization simultaneously, a highly efficient anode with 3D solid-state textile framework has been developed to advance the performance of DCFCs at intermediate temperatures. The cells with the 3D textile anode, Gd:CeO2-Li/Na2CO3 composite electrolyte, and Sm0.5Sr0.5CoO3 (SSC) cathode have demonstrated excellent performance at intermediate temperatures with maximum power densities of 143, 196, and 325 mW cm-2 at 500, 550, and 600°C, respectively. At 500°C, the cells could be operated steadily at a constant polarization current density of 0.15Acm-2 at for approximately 2 hours with a carbon utilization reaching 86%. The significant improvement of the cell performance at low temperatures attributes to the high synergistic conduction of the composite electrolyte and the superior 3D anode structure which offers more paths for carbon catalytic oxidation. Our results indicate the feasibility of directly electrochemical oxidation of solid carbon at 500-600°C with a high carbon utilization and represent a promising strategy to develop 3D architectured electrodes for fuel cells and other electrochemical devices.

Research Organization:
Idaho National Laboratory (INL), Idaho Falls, ID (United States)
Sponsoring Organization:
USDOE Office of Nuclear Energy (NE)
Grant/Contract Number:
AC07-05ID14517; DE‐AC07‐05ID14517
OSTI ID:
1476801
Alternate ID(s):
OSTI ID: 1412582
Report Number(s):
INL/JOU-17-42522-Rev001
Journal Information:
Advanced Materials, Vol. 30, Issue 4; ISSN 0935-9648
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 35 works
Citation information provided by
Web of Science

References (40)

Hybrid direct carbon fuel cells and their reaction mechanisms—a review journal December 2013
In-Situ Investigation of Quantitative Contributions of the Anode, Cathode, and Electrolyte to the Cell Performance in Anode-Supported Planar SOFCs journal March 2014
Enhancing triple-phase boundary at fuel electrode of direct carbon fuel cell using a fuel-filled ceria-coated porous anode journal October 2014
Overview on CO2 Valorization: Challenge of Molten Carbonates journal October 2015
Process Investigation of a Solid Carbon-Fueled Solid Oxide Fuel Cell Integrated with a CO 2 -Permeating Membrane and a Sintering-Resistant Reverse Boudouard Reaction Catalyst journal November 2015
Electrochemical oxidation of solid carbon in hybrid DCFC with solid oxide and molten carbonate binary electrolyte journal January 2008
Direct Conversion of Carbon Fuels in a Molten Carbonate Fuel Cell journal January 2005
The role of carbon in fuel cells journal June 2006
A facile method of preparing Fe-loaded activated carbon fuel for direct carbon solid oxide fuel cells journal November 2015
Recent advances in high-temperature carbon–air fuel cells journal January 2017
One-Dimensional Nanostructures: Synthesis, Characterization, and Applications journal March 2003
Role of coal characteristics in the electrochemical behaviour of hybrid direct carbon fuel cells journal January 2016
Carbon–air fuel cell without a reforming process journal January 2004
A High Performance Low Temperature Direct Carbon Fuel Cell journal May 2017
A direct carbon fuel cell with a molten antimony anode journal January 2011
Electrochemical Oxidation of Molten Carbonate-Coal Slurries journal January 1987
A Carbon-Air Battery for High Power Generation journal January 2015
A comprehensive review of direct carbon fuel cell technology journal June 2012
Electrochemical oxidation of graphite in an intermediate temperature direct carbon fuel cell based on two-phases electrolyte journal July 2013
A high performance composite ionic conducting electrolyte for intermediate temperature fuel cell and evidence for ternary ionic conduction journal March 2009
Catalysis and oxidation of carbon in a hybrid direct carbon fuel cell journal September 2011
Critical Review of Carbon Conversion in “Carbon Fuel Cells” journal May 2013
A direct carbon fuel cell with a CuO–ZnO–SDC composite anode journal January 2016
A durable, high-performance hollow-nanofiber cathode for intermediate-temperature fuel cells journal August 2016
Electrochemical Oxidation of Carbon for Electric Power Generation: A Review conference January 2009
Solid state electrochemistry of direct carbon/air fuel cells journal October 2008
Challenges in developing direct carbon fuel cells journal January 2017
Electrochemical performance of ceria-gadolinia electrolyte based direct carbon fuel cells journal July 2011
Optimization of a direct carbon fuel cell for operation below 700 °C journal May 2013
A direct carbon fuel cell with (molten carbonate)/(doped ceria) composite electrolyte journal September 2010
Investigation of anode configurations and fuel mixtures on the performance of direct carbon fuel cells (DCFCs) journal September 2013
Tailoring gadolinium-doped ceria-based solid oxide fuel cells to achieve 2 W cm−2 at 550 °C journal June 2014
Efficient Electro-Catalysts for Enhancing Surface Activity and Stability of SOFC Cathodes journal May 2013
Demonstration of high power, direct conversion of waste-derived carbon in a hybrid direct carbon fuel cell journal January 2012
Contribution of properties of composite cathode and cathode/electrolyte interface to cell performance in a planar solid oxide fuel cell stack journal April 2015
A comparative study of different carbon fuels in an electrolyte-supported hybrid direct carbon fuel cell journal August 2013
Enhancing SOFC cathode performance by surface modification through infiltration journal January 2014
A Carbon-Air Battery for High Power Generation journal January 2015
One-Dimensional Nanostructures: Synthesis, Characterization, and Applications journal June 2003
Solid state electrochemistry of direct carbon/air fuel cells journal September 2008

Cited By (1)