Local synergetic collaboration between Pd and local tetrahedral symmetric Ni oxide enables ultra-high-performance CO₂ thermal methanation

Abstract

Tetrahedral symmetric NiO2 and Pd respectively facilitate H2 splitting and CO2 to CO reduction and thus enable an ultra-high CH4 production yield performance in the epitaxial interfaces in the bimetallic NiO2@Pd NPs.

Bimetallic Ni-Based Catalysts for CO2 Methanation: A Review

“…Furthermore, Yan et al [125] prepared a composite hierarchically structured bimetallic nanocatalyst that consisted of metallic Pd nanoclusters adjacent to NiO with local As discussed previously with regard to Ru doping, adding Pt in Ni-based DFMs could also increase the low-temperature reducibility of NiO. The addition of 1% Pt increased the NiO reducibility by 50%, compared to the 70% increase caused by the addition of 1% Ru [104].…”

“…Furthermore, Yan et al [ 125 ] prepared a composite hierarchically structured bimetallic nanocatalyst that consisted of metallic Pd nanoclusters adjacent to NiO with local tetrahedral symmetry. The support consisted of acid-treated carbon nanotubes (CNTs) and the catalysts were further decorated with a thin tetramethyl orthosilicate (TMOS) layer.…”

“… Schematic representation of the reaction coordinates in the NiO T Pd-T. Reproduced with permission from [ 125 ]. Copyright: Royal Society of Chemistry, London, UK, 2020.…”

Elucidation of the Roles of Ionic Liquid in CO2 Electrochemical Reduction to Value-Added Chemicals and Fuels

“…Several CO 2 -utilization technologies using biological and chemical methods such as thermal reduction [3], electrochemical reduction [4], and photoelectrochemical reduction [5] have been investigated. The thermal reduction of CO 2 thermal reduction is far from use in real-world applications because of the high threshold requirements for the temperature, the available materials, and the system configurations [6]. Many techniques have been studied methods to reduce the threshold temperature and to improve the conversion efficiency of the CO 2 reduction reaction, such as the through the utilization of heterogeneous catalysts [7].…”

“…Many techniques have been studied methods to reduce the threshold temperature and to improve the conversion efficiency of the CO 2 reduction reaction, such as the through the utilization of heterogeneous catalysts [7]. The development of heterogenous catalysts have focused on modifying the structure and the composition, the study of reaction pathways considering dimension-geometry effects, bifunctional processes, ligand impacts, and lattice strain [6]. Several metal catalysts have recently been designed that have shown CO 2 methanation at low temperatures and at low atmospheric pressure [8].…”