Results 51 to 60 of about 12,638 (303)
A comparative study on the kinetics of carbon dioxide methanation over bimetallic and monometallic catalysts [PDF]
Hydrogen, Fuel Cell & Energy Storage, 2016 In this paper, Ni/Al and La-Ni/Al catalysts were prepared with a co-impregnation method and employed in carbon dioxide methanation reaction. The catalytic results showed that the catalyst with (10wt.%) of lanthanum and (20wt.%) nickel had the highest ...
Soudabeh Rahmani +2 more
doaj +1 more source
Metal-monolithic Catalyst for Selective CO Methanation
Journal of the Japan Petroleum Institute, 2011 高いCO選択メタン化活性を示す1 wt%Ru/Ni-Al複合酸化物触媒を家庭用PEFCシステムの燃料改質器に適用するため，外径100 mmφの実サイズ・メタルハニカム触媒を作製し，その性能を評価した。CO 0.2～0.8％を含む模擬ガスを用いた基礎試験では，いずれの入口CO濃度においても，実サイズ触媒は高いCO除去活性と選択性を示した。この触媒を1 kW燃料改質器の後段に接続し，CO濃度0.8%を含むシフト触媒出口ガスをGHSV = 2400 h−1で導入した結果，出口CO濃度8 ppm(CO除去率99.9％)を長時間安定に維持できることを確認した。
Shingo Komori +5 more
openaire +2 more sources
Photoswitching Conduction in Framework Materials
Advanced Functional Materials, EarlyView.This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez +4 more
wiley +1 more source
A DFT investigation of the mechanisms of CO2 and CO methanation on Fe (111)
Materials for Renewable and Sustainable Energy, 2020 Insight into the detailed mechanism of the Sabatier reaction on iron is essential for the design of cheap, environmentally benign, efficient and selective catalytic surfaces for CO2 reduction. Earlier attempts to unravel the mechanism of CO2 reduction on
Caroline R. Kwawu +3 more
doaj +1 more source
Energy-efficient CO2 hydrogenation with fast response using photoexcitation of CO2 adsorbed on metal catalysts. [PDF]
, 2018 Many heterogeneous catalytic reactions occur at high temperatures, which may cause large energy costs, poor safety, and thermal degradation of catalysts.
Hyeon, Seokwon +6 more
core +1 more source
Catalytic co-aromatization of ethanol and methane
Applied Catalysis B: Environmental, 2016 Abstract This study demonstrates the technical feasibility of simultaneously converting ethanol and methane into liquid hydrocarbons at mild reaction conditions (400 °C and 1 atm) over silver and/or zinc modified zeolite catalysts. After GC–MS analysis, it is worth noting that aromatics are the major compounds contained in the liquid product ...
Aiguo Wang +5 more
openaire +2 more sources
Advanced Functional Materials, EarlyView.This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari +4 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Multi‐metal Cu─Ce─Ag nanoparticles harness synergistic interactions to drive efficient electrochemical CO2 reduction reaction toward C2+ products at high current densities. Ag enhances CO production, Ce modulates Cu oxidation states, and together they boost *CO coverage and local pH to enhance C─C coupling, enabling record C2+ yields with suppressed ...
Nini Zhang +9 more
wiley +1 more source
Cobalt catalysts decorated with platinum atoms supported on barium zirconate provide enhanced activity and selectivity for CO2 methanation [PDF]
, 2016 A perovskite-structured barium zirconate, BaZrO3 (BZ), support is demonstrated to enhance the activity, relative to γ-Al2O3, of Co nanoparticle catalysts decorated with Pt for CO2 methanation.
Kiely, Christopher J. +4 more
core +2 more sources
Advanced Functional Materials, EarlyView.Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He +5 more
wiley +1 more source