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

Autor: Nguyen DN; School of Chemical Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Suwon, 16419, Republic of Korea., Phu TKC; School of Chemical Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Suwon, 16419, Republic of Korea., Kim J; School of Chemical Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Suwon, 16419, Republic of Korea., Hong WT; School of Chemical Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Suwon, 16419, Republic of Korea., Kim JS; Graduate School of Energy Science and Technology (GEST), Chungnam National University, Daejeon, 34134, Republic of Korea.; Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 37673, Republic of Korea., Roh SH; School of Chemical Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Suwon, 16419, Republic of Korea., Park HS; School of Chemical Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Suwon, 16419, Republic of Korea.; Convergence Research Center for Energy and Environmental Sciences, Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology (SAIHST), Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Suwon, 16419, Republic of Korea., Chung CH; School of Chemical Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Suwon, 16419, Republic of Korea., Choe WS; School of Chemical Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Suwon, 16419, Republic of Korea., Shin H; Graduate School of Energy Science and Technology (GEST), Chungnam National University, Daejeon, 34134, Republic of Korea., Lee JY; School of Chemical Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Suwon, 16419, Republic of Korea., Kim JK; School of Chemical Engineering, Sungkyunkwan University, 2066, Seoburo, Jangan-gu, Suwon, 16419, Republic of Korea.
Jazyk: angličtina
Zdroj: Small (Weinheim an der Bergstrasse, Germany) [Small] 2022 Nov; Vol. 18 (45), pp. e2204797. Date of Electronic Publication: 2022 Sep 19.
DOI: 10.1002/smll.202204797
Abstrakt: 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.
(© 2022 Wiley-VCH GmbH.)
Databáze: MEDLINE
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