Cited by 46Electrocatalysts for Energy ConversionMXene and MAX Phase MaterialsHydrogen Storage and Materials

Interfacial Strain‐Modulated Nanospherical Ni 2 P by Heteronuclei‐Mediated Growth on Ti 3 C 2 T x MXene for Efficient Hydrogen Evolution

Nguyen, Duong Nguyen, Phu, Thi Kim Cuong, Kim, Jaekyum, Hong, Won Tae, Kim, Jin‐Soo, Roh, Seung Hun, Park, Ho Seok, Chung, Chan‐Hwa +4 more·2022·Small

Abstract

Interface modulation of nickel phosphide (Ni 2 P) to produce an optimal catalytic activation barrier has been considered a promising approach to enhance the hydrogen production activity via water splitting. Herein, heteronuclei‐mediated in situ growth of hollow Ni 2 P nanospheres on a surface defect‐engineered titanium carbide (Ti 3 C 2 T x ) MXene showing high electrochemical activity for the hydrogen evolution reaction (HER) is demonstrated. The heteronucleation drives intrinsic strain in hexagonal Ni 2 P with an observable distortion at the Ni 2 P@Ti 3 C 2 T x MXene heterointerface, which leads to charge redistribution and improved charge transfer at the interface between the two components. The strain at the Ni 2 P@Ti 3 C 2 T x MXene heterointerface significantly boosts the electrochemical catalytic activities and stability toward HER in an acidic medium via a combination between experimental results and theoretical calculations. In a 0.5 m H 2 SO 4 electrolyte, the Ni 2 P@Ti 3 C 2 T x MXene hybrid shows excellent HER catalytic performance, requiring an overpotential of 123.6 mV to achieve 10 mA cm −2 with a Tafel slope of 39 mV dec −1 and impressive durability over 24 h operation. This approach presents a significant potential to rationally design advanced catalysts coupled with 2D materials and transition metal‐based compounds for state‐of‐the‐art high efficiency energy conversions.

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Crossref · 10.1002/smll.202204797

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Authors
Nguyen, D. N., Phu, T. K. C., Kim, J., Hong, W. T., Kim, J., Roh, S. H., Park, H. S., Chung, C., Choe, W., Shin, H., Lee, J. Y., & Kim, J. K.
Affiliations
  • Sungkyunkwan University (KR)
  • Pohang University of Science and Technology (KR)
  • Chungnam National University (KR)
Corresponding author
  • Shin, Hyeyoung
  • Lee, Jun Young
  • Kim, Jung Kyu
Venue
Small
Publisher
Wiley
Published
2022-09-19
Volume
18
Issue
45
Pages
e2204797-e2204797
ISSN
  • 1613-6810 (ISSN-L)
  • 1613-6829
OpenAlex
W4296336211
Cited by
46
References
48
Citations by year
2026: 11 · 2025: 12 · 2024: 14 · 2023: 8 · 2022: 1
FWCI
1.58
Type
journal article
Language
en
Open access
closed
Locations
  • Small (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Research Foundation of Korea (NRF‐2021M3H4A1A03076644, NRF‐2021R1A4A1024129, NRF‐2020R1A2C2006077, NRF‐2021R1A5A1084921)
  • Korea Institute of Energy Technology Evaluation and Planning (20208510010310)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Materials Science › Materials Chemistry › MXene and MAX Phase Materials
  • Physical Sciences › Materials Science › Materials Chemistry › Hydrogen Storage and Materials
Keywords
nickel phosphide, Ti3C2Tx MXene, heterostructures, interfacial strain, hydrogen evolution reaction, electrocatalysis, heterogeneous nucleation, surface defect engineering, charge transfer, water splitting, acidic electrolyte, two-dimensional materials

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