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Title: Inertially enhanced mass transport using 3D-printed porous flow-through electrodes with periodic lattice structures

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America
ORCiD logo [1]; ORCiD logo [2];  [3]; ORCiD logo [3];  [3]; ORCiD logo [4];  [3]
  1. Computational Engineering Division, Lawrence Livermore National Laboratory, Livermore, CA 94550,
  2. Materials Engineering Division, Lawrence Livermore National Laboratory, Livermore, CA 94550,
  3. Materials Science Division, Lawrence Livermore National Laboratory, Livermore, CA 94550,
  4. Center for Engineered Materials and Manufacturing, Lawrence Livermore National Laboratory, Livermore, CA 94550

Significance The efficient utilization of electrical energy is an increasingly important challenge, especially as renewable energy sources become cheaper and demand increases. Electrochemical reactors utilizing flow-through electrodes (FTEs) provide an attractive path toward the efficient utilization of electrical energy. Their commercial viability and ultimate adoption hinge on attaining high current densities to drive cost competitiveness. There are limited opportunities for engineering FTE materials, as these are often random, disordered media. Alternatively, three-dimensional (3D)–printed FTEs provide the opportunity to quickly explore the impact of engineered electrode architectures on device performance. We demonstrate that 3D-printed FTEs have the potential to exceed the performance of conventional materials by using the expanded design freedom to engineer the internal flow.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1812254
Report Number(s):
LLNL-JRNL--815948; e2025562118
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Issue: 32 Vol. 118; ISSN 0027-8424
Publisher:
Proceedings of the National Academy of SciencesCopyright Statement
Country of Publication:
United States
Language:
English

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