CO methanation promoted by UV irradiation over Ni/TiO 2

Promotion effect of additive Fe on Al2O3 supported Ni catalyst for CO2 methanation

“…It was found that the binding energy of Ni 2p 2/3 decreased in the order: 12Ni12Fe (856.51 eV) ≈12Ni (856.50 eV) > 12Ni3Fe (856.38 eV), confirming the electronic effect of Fe on the catalysts. In general, the lower binding energy of Ni 2p 2/3 reveals the weaker metal‐support interaction of the catalyst or a bigger reduction capacity of the catalyst, which is consistent with the results of TPR in Figure and the CO 2 conversion in Figure . So it's rational to assume that the active Ni particles in 12Ni3Fe possess a more suitable electronic environment …”

“…Ni‐based catalysts have been widely employed for carbon dioxide methanation owing to their high catalytic activity and selectivity for methane, nonetheless carbon deposition and rapid deactivation occur due to the metal particles sintering under high temperature. To further improve the performance of Ni‐based catalyst, the addition of a second metal has been attempted.…”

Light-Promoted Hydrogenation of Carbon Dioxide—An Overview

“…In line with the aforementioned report, Fu and co-workers demonstrated that the hydrogenation of CO on M/TiO2 (M = Ru [55] or Ni [56]) catalysts at moderate temperatures can be further promoted by UV irradiation. This was confirmed by the lack of effect in the case an analogous catalyst based on alumina, which being an insulator, cannot contribute via a photocatalytic pathway.…”

Photo-thermochemical Cycle for CO2 Reduction based on Effective Ni ion Substitute-doped TiO2

“…在传统光催化中 0.1 wt%到 1 wt%范围内 的掺杂通常会有最好的效果, 本文基于溶胶凝胶法, 制 备得到质量分数为 0. [31,32] , 这表明 NT 中有锐钛矿的存在. 用 EDXS 检测材料 ST 与 NT 的组成成分, 如图 5 所示.…”