Reactive nanotemplates for synthesis of highly efficient electrocatalysts: Beyond simple morphology transfer

Jun Kim, Minki Jun, Songa Choi, Jinhyoung Jo, Kwangyeol Lee

Research output: Contribution to journalReview article

Abstract

Efficient electrocatalysts for energy conversion in general, and fuel cell operation and water electrolysis in particular, are pivotal for carbon-free hydrogen production. While the requirements of successful electrocatalysts include a high number density of catalytically active sites, high surface-to-volume ratio, inherently high catalytic activity, and robustness of the catalyst surface structure under harsh operating conditions, it is extremely difficult to synthesize nanocatalysts that could possess all these structural characteristics. Nanotemplate-mediated synthesis, namely, the coating or filling of a template with a desired material phase followed by the removal of the template, has captured the interest of researchers because of the ease of creating hollow-structured nanocatalysts with a high surface to volume ratio. Recent studies, however, have revealed that nanotemplates could be more than just passive supports because they greatly affect catalytic performance by creating an unusual synergy between the substrate and catalyst and by providing dopants to the actual catalyst phase owing to their reactive nature. In this review, we discuss the most notable recent advances in the nanotemplate-based synthesis of electrocatalysts as well as the unusual effects of nanotemplates on the performance of nanocatalysts. We also provide an outlook for this fledgling field so that future research efforts could be focused on the development of practically useful electrocatalysts that could shape the future of energy technologies.

Original languageEnglish
Pages (from-to)20392-20410
Number of pages19
JournalNanoscale
Volume11
Issue number43
DOIs
Publication statusPublished - 2019 Nov 21

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Electrocatalysts
Catalysts
Hydrogen production
Energy conversion
Electrolysis
Surface structure
Fuel cells
Catalyst activity
Carbon
Doping (additives)
Coatings
Water
Substrates

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Reactive nanotemplates for synthesis of highly efficient electrocatalysts : Beyond simple morphology transfer. / Kim, Jun; Jun, Minki; Choi, Songa; Jo, Jinhyoung; Lee, Kwangyeol.

In: Nanoscale, Vol. 11, No. 43, 21.11.2019, p. 20392-20410.

Research output: Contribution to journalReview article

Kim, Jun ; Jun, Minki ; Choi, Songa ; Jo, Jinhyoung ; Lee, Kwangyeol. / Reactive nanotemplates for synthesis of highly efficient electrocatalysts : Beyond simple morphology transfer. In: Nanoscale. 2019 ; Vol. 11, No. 43. pp. 20392-20410.
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