Related Experiment Video
Updated: Oct 26, 2026

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
Synthesis-dependent performance of Na-Ni-Al dual-function materials for integrated CO2 capture and methanation
Zelin Xu1, Jiliang Ma1, Wuyu Wang1
1Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, P.R. China.
Abstract:
Integrated CO2 capture and methanation (ICCM) is a promising route for converting CO2 into synthetic natural gas using renewable H2. ICCM requires a material to capture carbon and make them available for subsequent hydrogenation. This study compares Na-Ni-Al dual-function materials prepared by sol-gel and impregnation route and examines the effects of the sodium precursor. This study compares sol-gel and impregnation routes to examine how synthesis-dependent organization of Na-derived sorption domains and Ni active sites affects ICCM performance. The optimized NaNiAl-SG-CO3 exhibits superior performance, delivering a desorbable CO2 capacity of 461.85 μmol·g-1 and a CH4 yield of 380.88 μmol·g-1 at 340 °C, representing 30.7% higher yield and 24.8% higher peak rate than the impregnation-derived counterpart, along with enhanced CH4 selectivity and cyclic stability. The sol-gel material achieved this higher methane yield despite having a lower BET surface area. CO2 temperature-programmed desorption showed a different distribution of carbon-release temperatures, while temperature-programmed hydrogenation showed CH4 formation at lower temperature. The results indicate that synthesis-dependent changes in carbon retention and hydrogenation response are relevant to material performance. These findings provide an experimental basis for developing noble-metal-free materials for cyclic CO2 utilization.
More Related Videos
08:40Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
09:22Synthesis and Performance Evaluations of ZnCoS/ZnCdS with Twin Crystal Structure for Multifunctional Redox Photocatalysis in Energy Applications
Published on: July 25, 2025
Related Concept Videos
Catalysis
Nitriles to Amines: LiAlH4 Reduction
As shown below, the mechanism involves three steps. Firstly, the hydride ion acting as a nucleophile attacks the nitrile carbon to form an anion. In the second step, a second equivalent of the hydride ion attacks the anion to...
2° Amines to N-Nitrosamines: Reaction with NaNO2
meta-Directing Deactivators: –NO2, –CN, –CHO, –⁠CO2R, –COR, –CO2H
Reduction of Alkynes to trans-Alkenes: Sodium in Liquid Ammonia
When dissolved in liquid ammonia, an alkali metal, such as sodium, dissociates into a...
Synthesis of α-Substituted Carbonyl Compounds: The Stork Enamine Reaction