Direct Integration of Strained-Pt Catalysts into Proton-Exchange-Membrane Fuel Cells with Atomic Layer Deposition

Xu, Shicheng; Wang, Zhaoxuan; Dull, Sam; Liu, Yunzhi; Lee, Dong Un; Lezama Pacheco, Juan S.; Orazov, Marat; Vullum, Per Erik; Dadlani, Anup Lal; Vinogradova, Olga; Schindler, Peter; Tam, Qizhan; Schladt, Thomas D.; Mueller, Jonathan E.; Kirsch, Sebastian; Huebner, Gerold; Higgins, Drew; Torgersen, Jan; Viswanathan, Venkatasubramanian; Jaramillo, Thomas Francisco; Prinz, Fritz B.

doi:10.1002/adma.202007885

Direct Integration of Strained-Pt Catalysts into Proton-Exchange-Membrane Fuel Cells with Atomic Layer Deposition

Journal Article · Thu Jun 10 00:00:00 EDT 2021 · Advanced Materials

DOI:https://doi.org/10.1002/adma.202007885· OSTI ID:1807686

^[1]; Wang, Zhaoxuan ^[2]; Dull, Sam ^[3]; Liu, Yunzhi ^[2]; Lee, Dong Un ^[3]; Lezama Pacheco, Juan S. ^[4]; ^[3]; ^[5]; Dadlani, Anup Lal ^[6]; Vinogradova, Olga ^[7]; ^[2]; Tam, Qizhan ^[1]; Schladt, Thomas D. ^[8]; Mueller, Jonathan E. ^[8]; Kirsch, Sebastian ^[8]; Huebner, Gerold ^[8]; Higgins, Drew ^[9]; Torgersen, Jan ^[6]; Viswanathan, Venkatasubramanian ^[10]; ^[3] more »

Stanford Univ., CA (United States). Dept. of Mechanical Engineering
Stanford Univ., CA (United States). Dept. of Material Science and Engineering
Stanford Univ., CA (United States). Dept. of Chemical Engineering
Stanford Univ., CA (United States). Dept. of Earth System Science
SINTEF Energy Research, Trondheim (Norway)
Norwegian Univ. of Science and Technology, Trondheim (Norway). Dept. of Mechanical and Industrial Engineering
Carnegie Mellon Univ., Pittsburgh, PA (United States). Chemical Engineering
Volkswagen Group Research, Wolfsburg (Germany)
Stanford Univ., CA (United States). Dept. of Chemical Engineering; McMaster Univ., Hamilton, ON (Canada). Dept. of Chemical Engineering
Carnegie Mellon Univ., Pittsburgh, PA (United States). Chemical Engineering; Carnegie Mellon Univ., Pittsburgh, PA (United States). Mechanical Engineering
Stanford Univ., CA (United States). Dept. of Mechanical Engineering; Stanford Univ., CA (United States). Dept. of Material Science and Engineering; Norwegian Univ. of Science and Technology, Trondheim (Norway). Dept. of Mechanical and Industrial Engineering

The design and fabrication of lattice-strained platinum catalysts achieved by removing a soluble core from a platinum shell synthesized via atomic layer deposition, is reported. The remarkable catalytic performance for the oxygen reduction reaction (ORR), measured in both half-cell and full-cell configurations, is attributed to the observed lattice strain. By further optimizing the nanoparticle geometry and ionomer/carbon interactions, mass activity close to 0.8 A mg_Pt^-1 @0.9 V iR-free is achievable in the membrane electrode assembly. Nevertheless, active catalysts with high ORR activity do not necessarily lead to high performance in the high-current-density (HCD) region. More attention shall be directed toward HCD performance for enabling high-power-density hydrogen fuel cells.

View Accepted Manuscript (DOE)

Research Organization:: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: AC02-76SF00515

OSTI ID:: 1807686

Journal Information:: Advanced Materials, Journal Name: Advanced Materials Journal Issue: 30 Vol. 33; ISSN 0935-9648

Publisher:: WileyCopyright Statement

Country of Publication:: United States

Language:: English

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