Premium
A Novel Carbon Support: Few‐Layered Graphdiyne‐Decorated Carbon Nanotubes Capture Metal Clusters as Effective Metal‐Supported Catalysts
Author(s) -
Lv Yan,
Wu Xueyan,
Lin He,
Li Jiaxin,
Zhang Hongbo,
Guo Jixi,
Jia Dianzeng,
Zhang Hongmei
Publication year - 2021
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.202006442
Subject(s) - nanomaterial based catalyst , catalysis , carbon nanotube , materials science , overpotential , carbon fibers , chemical engineering , nanotechnology , metal , palladium , chemistry , nanoparticle , organic chemistry , composite material , metallurgy , electrochemistry , composite number , engineering , electrode
Carbon‐supported metal nanocatalysts have received substantial attention for heterogeneous catalysis in industry. Hunting for suitable and impactful carbon supports that have strong interactions with metal nanocatalyst is a matter of great urgency. Herein, a well‐designed graphdiyne layer decorated on the carbon nanotubes sidewalls (CNT@GDY) serves as a novel carbon support. This unique hybrid structure effectively traps platinum and palladium atomic clusters (Pt/Pd‐ACs) with dimensions of 0.65 nm and 1.05 nm uniformly and firmly, forming novel carbon‐supported metal nanocatalysts (Pt(Pd)‐ACs/CNT @ GDY) for efficient hydrogen generation and aromatic nitroreduction, respectively. The Pt‐ACs/CNT@GDY can deliver an HER current density of 10 mA cm −2 with a small overpotential of 23 mV in 0.5 M H 2 SO 4 , showing a greatly enhanced mass activity, intrinsic activity than the commercial Pt/C catalyst. The Pd‐ACs/CNT@GDY also exhibits excellent catalytic activity and a high turnover frequency of 38.0 min −1 for aromatic nitroreduction. The carbon support turns out to possess excellent conductivity, abundant and uniform reactive sites, low redox potential, more negative surface and large specific surface area as well as a strong interaction with ACs, as anticipated in ideal supports, which can be applied in other metal‐supported catalysts.