am0c00086_si_001.pdf (1.11 MB)
Bimetallic Metal–Organic Framework-Derived Hybrid Nanostructures as High-Performance Catalysts for Methane Dry Reforming
journal contribution
posted on 2020-03-24, 11:33 authored by Teng-Yun Liang, Duraisamy Senthil Raja, Kah Chun Chin, Chun-Lung Huang, Sumathi A/P Sethupathi, Loong Kong Leong, De-Hao Tsai, Shih-Yuan LuSyngas,
consisting of equimolar CO and H2, is an important feedstock for large-scale production of a wide range of commodity chemicals including aldehyde,
methanol, ammonia, and other oxygenated chemicals. Dry reforming of
methane (DRM), proceeding by reacting greenhouse gases, CO2 and CH4, at high temperatures in the presence of a metal
catalyst, is considered one of the most environmentally friendly routes
for syngas production. Nevertheless, nonprecious metal-based catalysts,
which can operate at relatively low temperatures for high product
yields and selectivities, are required to drive the DRM process for
industrial applications effectively. Here, we developed NiCo@C nanocomposites
from a corresponding NiCo-based bimetallic metal–organic framework
(MOF) to serve as high-performance catalysts for the DRM process,
achieving high turnover frequencies (TOF) at low temperatures (>5.7
s–1 at 600 °C) and high product selectivities
(H2/CO = 0.9 at 700 °C). The incorporation of Co in
Ni catalysts improves the operation stability and light-off stability.
The present development for MOF-derived nanocomposites opens a new
horizon for design of DRM catalysts.