Highly Crystalline Pd13Cu3S7 Nanoplates Prepared via Partial Cation Exchange of Cu1.81S Templates as an Efficient Electrocatalyst for the Hydrogen Evolution Reaction

Jongsik Park; Haneul Jin; Jaeyoung Lee; Aram Oh; Byeongyoon Kim; Ju Hee Kim; Hionsuck Baik; Sang Hoon Joo; Kwangyeol Lee

doi:10.1021/acs.chemmater.8b03178

Highly Crystalline Pd₁₃Cu₃S₇ Nanoplates Prepared via Partial Cation Exchange of Cu_1.81S Templates as an Efficient Electrocatalyst for the Hydrogen Evolution Reaction

Jongsik Park, Haneul Jin, Jaeyoung Lee, Aram Oh, Byeongyoon Kim, Ju Hee Kim, Hionsuck Baik, Sang Hoon Joo, Kwangyeol Lee

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

Abstract

Chemical transformations via postsynthetic modification of colloidal nanocrystals have received great attention as a rational synthetic route to unprecedented nanostructures. In particular, the cation exchange reaction is considered as an effective method to alter the composition of the starting nanostructures while maintaining the initial structural characteristics. Herein, we report the synthesis of highly crystalline Pd₁₃Cu₃S₇ nanoplates (NPs) via partial cation exchange of the Cu_1.81S phase by Pd cations, with Cu_1.94S NPs and Pd₁₃Cu₃S₇/Cu_2-xS janus heterostructure as the intermediate phases. The highly crystalline Pd₁₃Cu₃S₇ ternary NPs exhibit excellent electrocatalytic performance toward the hydrogen evolution reaction (HER) under acidic conditions. The HER activity of Pd₁₃Cu₃S₇ NPs with its overpotential as low as 64 mV at -10 mA cm^-2 is superior to those of amorphous PdCuS and commercial Pd/C catalysts, demonstrating the importance of nanocrystal crystallinity in boosting the HER activity. They also exhibit excellent stability as compared to commercial Pt/C and Pd/C under strongly acidic conditions.

Original language	English
Pages (from-to)	6884-6892
Number of pages	9
Journal	Chemistry of Materials
Volume	30
Issue number	19
DOIs	https://doi.org/10.1021/acs.chemmater.8b03178
Publication status	Published - 2018 Oct 9

Bibliographical note

Funding Information:
This work was supported by NRF-2017R1A2B3005682, KBSI project E37300, Korea University Future Research Grant, and Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2017R1A6A3A01008861, 2018R1A6A3A01013426). S.H.J. was supported by the National Research Foundation of Korea (NRF-2017R1A2B2008464). H.J. acknowledges the Global Ph.D. Fellowship (NRF-2015H1A2A1033447). The authors thank Korea Basic Science Institute (KBSI) for the usage of their HRTEM instrument.

Publisher Copyright:
© 2018 American Chemical Society.

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Materials Chemistry

Access to Document

10.1021/acs.chemmater.8b03178

Cite this

@article{05ca0f33da024db4ab888afefc755dc7,

title = "Highly Crystalline Pd13Cu3S7 Nanoplates Prepared via Partial Cation Exchange of Cu1.81S Templates as an Efficient Electrocatalyst for the Hydrogen Evolution Reaction",

abstract = "Chemical transformations via postsynthetic modification of colloidal nanocrystals have received great attention as a rational synthetic route to unprecedented nanostructures. In particular, the cation exchange reaction is considered as an effective method to alter the composition of the starting nanostructures while maintaining the initial structural characteristics. Herein, we report the synthesis of highly crystalline Pd13Cu3S7 nanoplates (NPs) via partial cation exchange of the Cu1.81S phase by Pd cations, with Cu1.94S NPs and Pd13Cu3S7/Cu2-xS janus heterostructure as the intermediate phases. The highly crystalline Pd13Cu3S7 ternary NPs exhibit excellent electrocatalytic performance toward the hydrogen evolution reaction (HER) under acidic conditions. The HER activity of Pd13Cu3S7 NPs with its overpotential as low as 64 mV at -10 mA cm-2 is superior to those of amorphous PdCuS and commercial Pd/C catalysts, demonstrating the importance of nanocrystal crystallinity in boosting the HER activity. They also exhibit excellent stability as compared to commercial Pt/C and Pd/C under strongly acidic conditions.",

author = "Jongsik Park and Haneul Jin and Jaeyoung Lee and Aram Oh and Byeongyoon Kim and Kim, {Ju Hee} and Hionsuck Baik and Joo, {Sang Hoon} and Kwangyeol Lee",

note = "Funding Information: This work was supported by NRF-2017R1A2B3005682, KBSI project E37300, Korea University Future Research Grant, and Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2017R1A6A3A01008861, 2018R1A6A3A01013426). S.H.J. was supported by the National Research Foundation of Korea (NRF-2017R1A2B2008464). H.J. acknowledges the Global Ph.D. Fellowship (NRF-2015H1A2A1033447). The authors thank Korea Basic Science Institute (KBSI) for the usage of their HRTEM instrument. Publisher Copyright: {\textcopyright} 2018 American Chemical Society.",

year = "2018",

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T1 - Highly Crystalline Pd13Cu3S7 Nanoplates Prepared via Partial Cation Exchange of Cu1.81S Templates as an Efficient Electrocatalyst for the Hydrogen Evolution Reaction

AU - Park, Jongsik

AU - Jin, Haneul

AU - Lee, Jaeyoung

AU - Oh, Aram

AU - Kim, Byeongyoon

AU - Kim, Ju Hee

AU - Baik, Hionsuck

AU - Joo, Sang Hoon

AU - Lee, Kwangyeol

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PY - 2018/10/9

Y1 - 2018/10/9

N2 - Chemical transformations via postsynthetic modification of colloidal nanocrystals have received great attention as a rational synthetic route to unprecedented nanostructures. In particular, the cation exchange reaction is considered as an effective method to alter the composition of the starting nanostructures while maintaining the initial structural characteristics. Herein, we report the synthesis of highly crystalline Pd13Cu3S7 nanoplates (NPs) via partial cation exchange of the Cu1.81S phase by Pd cations, with Cu1.94S NPs and Pd13Cu3S7/Cu2-xS janus heterostructure as the intermediate phases. The highly crystalline Pd13Cu3S7 ternary NPs exhibit excellent electrocatalytic performance toward the hydrogen evolution reaction (HER) under acidic conditions. The HER activity of Pd13Cu3S7 NPs with its overpotential as low as 64 mV at -10 mA cm-2 is superior to those of amorphous PdCuS and commercial Pd/C catalysts, demonstrating the importance of nanocrystal crystallinity in boosting the HER activity. They also exhibit excellent stability as compared to commercial Pt/C and Pd/C under strongly acidic conditions.

AB - Chemical transformations via postsynthetic modification of colloidal nanocrystals have received great attention as a rational synthetic route to unprecedented nanostructures. In particular, the cation exchange reaction is considered as an effective method to alter the composition of the starting nanostructures while maintaining the initial structural characteristics. Herein, we report the synthesis of highly crystalline Pd13Cu3S7 nanoplates (NPs) via partial cation exchange of the Cu1.81S phase by Pd cations, with Cu1.94S NPs and Pd13Cu3S7/Cu2-xS janus heterostructure as the intermediate phases. The highly crystalline Pd13Cu3S7 ternary NPs exhibit excellent electrocatalytic performance toward the hydrogen evolution reaction (HER) under acidic conditions. The HER activity of Pd13Cu3S7 NPs with its overpotential as low as 64 mV at -10 mA cm-2 is superior to those of amorphous PdCuS and commercial Pd/C catalysts, demonstrating the importance of nanocrystal crystallinity in boosting the HER activity. They also exhibit excellent stability as compared to commercial Pt/C and Pd/C under strongly acidic conditions.

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