Results 131 to 140 of about 12,638 (303)

Thermal Activation and Deactivation of Ni‐Doped Ceria Catalysts in CO2 Methanation

Small Science
Discovered almost 130 years ago by P. Sabatier, CO2 hydrogenation to methane (CO2 methanation) is presently attracting attention as one of the most promising methods for storing intermittent renewable energy in the form of chemical fuels.
Mathias Barreau, Davide Salusso, Jinming Zhang, Michael Haevecker, Detre Teschner, Anna Efimenko, Elisa Borfecchia, Kamil Sobczak, Spyridon Zafeiratos   +8 more
doaj   +1 more source

Effect of sodium promotion on zinc-ferrite catalysts for CO and CO2 co-conversion: Insights from in situ and theoretical studies

Fuel Processing Technology
This study investigates the influence of sodium (Na) on the co-conversion of CO and CO2 over Na-promoted zinc-ferrite catalysts. Using a combination of H2-TPR, CO-TPR, in situ Raman spectroscopy, calorimetry, and density functional theory (DFT ...
Mansurbek Urol ugli Abdullaev, Gyungah Park, Nam Sun Kim, Jin-Ju Lee, Yang Sik Yun, Jung Ho Shin, Hee-Joon Chun, Yong Tae Kim   +7 more
doaj   +1 more source

Tar cracking and reforming in fluidized-bed biomass gasification conditions [PDF]

, 2011
In this work realized by CIRAD, a specially designed crossed fixed-bed reactor was used to characterize thermal and catalytic tar reduction due to cracking and reforming reactions in fluidized-bed gasification conditions.
Commandre, Jean-Michel, Nitsch, Xavier
core  

Reaction‐Induced Reversible Reconstruction Enhanced Ni‐MgO/CaO Dual Functional Material for Stable CO2 Capture and In Situ Conversion

Advanced Science, EarlyView.
A highly dispersed NiO‐MgO solid solution (MgxNi1‐xO) is created in a hierarchically porous Ca‐based matrix to protect Ni and CaO nanoparticles against carbon deposition and sintering. Owing to the reversible reconstruction of MgxNi1‐xO, this superior structure is self‐regenerative in the calcium looping dry reforming of methane process, thereby ...
Hao Xu, Chen Hou, Jiawei Zhong, Chuande Huang, Wei Wei, Jiawei Hu   +5 more
wiley   +1 more source

Lunar‐Based Photothermal CO2 Reduction Strategy: Self‐Evolving Transient Active Interface and Band Engineering

Advanced Science, EarlyView.
A self‐evolving Pd/Ov‐FeTiO3 photothermal catalyst, inspired by lunar soil, enables efficient extraterrestrial CO2 conversion. The formation of transient active interfaces and oxygen vacancies extends light absorption to the infrared range and optimizes electron transfer.
Yahang Wang, Yuhuan Li, Quanxin Wang, Deng Li, Pakkin Leong, Meng Wang, Shi Feng, Runyang Mo, Xianjin Shi, Xiaohui Li, Gangqiang Zhu, Chipui Tang   +11 more
wiley   +1 more source

Recent Advances and Challenges in Ammonia‐Hydrogen Energy Conversion

Advanced Science, EarlyView.
This work summarizes the latest progress of various catalytic methods in ammonia‐hydrogen energy conversion. The challenges and outlook of ammonia‐hydrogen energy conversion system are also emphasized. This work expects to build a blueprint of renewable and efficient ammonia‐hydrogen energy conversion systems under mild conditions.
Menghao Lv, Runchao Qin, Jianshuo Chen, Kaiwen Yang, Jianwei Lu, Weiwei Lei, Yifu Yu   +6 more
wiley   +1 more source

Design of novel inverse ZrO2/Ni catalysts for CO2 utilization: From CO2 to syn-methane

Journal of CO2 Utilization
The conversion of CO₂ has garnered significant attention due to escalating environmental and resource concerns. The metal-oxide (M-O) interface plays a pivotal role in catalysis, guiding the design of highly active catalysts.
Li Li, Xueshuang Wu, Jing Yang, Changwei Hu, Patrick Da Costa   +4 more
doaj   +1 more source

Strong metal-support interactions [PDF]

It has been demonstrated that synergistic metal-support effects can occur which markedly enhance specific activity and alter selectivity in certain reactions.
Vannice, M. Albert
core   +1 more source

Low Temperature Sabatier CO₂ Methanation

ChemCatChem
AbstractThe CO2 methanation reaction, or Sabatier reaction, is experiencing renewed interest in the context of large‐scale recycling of point CO2 emissions, leading to the power‐to‐gas technology. The reaction represents a flexible route to transform CO2 into methane by hydrogenation with (green) dihydrogen.
Molinet-Chinaglia, C., Shafiq, Seema, Serp, Philippe   +2 more
openaire   +1 more source

Deciphering Intricacies in Directional CO2 Conversion From Electrolysis to CO2 Batteries

Advanced Energy Materials, EarlyView.
This review will delve into the inherent connections and distinctions of CO2‐directed conversion in ECO2RR and CO2 batteries, in terms of product types, catalyst selection, catalytic mechanisms, and electrochemical performances, while proposing a benchmarking framework for the evaluation of CO2 batteries and innovative CO2 battery configurations for ...
Changfan Xu, Huaping Zhao, Lizhuang Chen, Weidong Shi, Guosheng Shao, Yong Lei   +5 more
wiley   +1 more source