Results 81 to 90 of about 174,489,859 (207)

Experimental methods in chemical engineering: Temperature‐programmed desorption—TPD

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Temperature‐programmed desorption (TPD) characterizes the surface active sites of functional materials, such as adsorbents (metal hydrides, porous carbons, zeolites, metal–organic frameworks, for example) and catalysts. Solids surfaces are pre‐treated to remove moisture, contaminants, and previously adsorbed species, then a probe molecule (NH3$
Daniel A. Valdivieso‐Vera, Gregory S. Patience, M. Olga Guerrero‐Pérez   +2 more
wiley   +1 more source

In situ preparation of Ni nanoparticles in cerium-modified silica aerogels for coking- and sintering-resistant dry reforming of methane

, 2017
Ni nanoparticles in nanochannels of cerium-modified silica aerogels were in situ prepared for coking-resistant dry reforming of methane.
Xiaoyuan Zhao, Jianhui Fang, Hongrui Li, Liyi Shi, Dengsong Zhang, Meirong Lu   +5 more
core   +1 more source

Effect of Bimetallic Doping in Cobalt Titanate for Methane Reforming [PDF]

, 2019
Supported Ni catalysts are extensively studied for methane reforming due to their high catalytic activity and low cost. However, these catalysts undergo deactivation due to coke deposition and oxidation of Ni particles.
Disha Jain (6730121), Disha, Jain
core   +2 more sources

Recent Advances of Perovskite Oxides for Air Pollution Control Chemistry: The Closed Loop From Design to Application

EcoEnergy, EarlyView.
This review summarizes a descriptor‐guided framework for linking theoretical calculations, in situ/operando characterization, synthesis regulation, and application screening in functional materials. Emphasis is placed on dynamic structure–property relationships that enable low‐cost material design with enhanced activity, stability, and environmental ...
Yanyu Jin, Zezheng Tang, Hengfan Wu, Xing Yuan, Zongxiang Yang, Weijia An, Wenquan Cui, Xianguang Meng, Ying Xu, Junhua Li   +9 more
wiley   +1 more source

Lanthanum chromite based composite anodes for dry reforming of methane

, 2018
Composite anodes containing La0.6Sr0.4CrO3-d (LSCr) and Ce0.9Gd0.1O2 (GDC) infiltrated with 5 or 10 wt% Ni were investigated as potential catalysts for dry reforming of methane (DRM) reaction in methane rich mixtures.
Sarno, Caterina, Di Bartolomeo, Elisabetta, Luisetto, I, Licoccia, S, Zurlo, Francesca, Luisetto, Igor, Licoccia, Silvia, Zurlo, F, Sarno, C, Di Bartolomeo, E   +9 more
core   +1 more source

3‐Reactor Chemical Looping System for Point Source CO2 Capture and Subsequent Conversion for Liquid Fuel Production

EcoEnergy, EarlyView.
This study presents a novel 3‐reactor chemical looping system for CO2 capture and subsequent utilization with biomass and natural gas for producing liquid fuels. Using Ca2Fe2O5\Fe2O3 oxygen carriers, it achieves 60% CO2 capture efficiency, ∼80% syngas purity, and autothermal operation, offering a scalable, carbon‐negative route to sustainable fuels ...
Krutarth Pandit, Xiaofeng Jiang, Falguni Akulwar, Danwyn J. Aranha, Rushikesh K. Joshi, Zhuo Cheng, Liang‐Shih Fan   +6 more
wiley   +1 more source

Recent advances in hydrotalcite-derived catalysts for methane reforming technologies

Discover Catalysis
Methane reforming (MR) technologies offer important pathways for syngas production, hydrogen generation, and methane valorization, with potential relevance to energy sustainability and climate-change mitigation.
Nada Abounahia, Sumia Manzoor, Alessandro Sinopoli, Kamal Mroue, Ivan Gladich, Abdraman Moussa, Mohammed Alshamari, Abdulrahman Altay, Tareq Al-Ansari, Ahmed Abotaleb   +9 more
doaj   +1 more source

Multidimensional Engineering Enabling Rate‐Matched C−N Coupling for Efficient Organonitrogen Electrosynthesis

EcoEnergy, EarlyView.
This review introduces rate matching as a unifying design principle for efficient electrochemical C−N coupling and highlights multidimensional engineering of catalysts, interfaces, and reactors to synchronize the generation of carbon‐ and nitrogen‐containing intermediates, balance their surface coverages, maximize C−N bond formation, and enable ...
Kaixing Cai, Chunyang Pu, Jun Yang, Guangqin Li, Jiahui Xian   +4 more
wiley   +1 more source

Ce-induced synergistic effect in exsolved perovskite catalyst for highly efficient and robust methane dry reforming

Nature Communications
Dry reforming of methane is an effective approach to convert two major greenhouse gases, methane and carbon dioxide, into high-value syngas, used as a feedstock for bulk and fine chemical synthesis.
Chencun Hao, Zhiyu Qu, Louise R. Smith, Nicholas F. Dummer, Haifeng Qi, Thomas J. A. Slater, Zhiping Zhu, Riguang Zhang, Zhao Sun, Zhiqiang Sun, Graham J. Hutchings   +10 more
doaj   +1 more source

A Mixed‐Ligand Metal–Organic Framework Strategy to Construct High‐Density O/S‐Shelled Ag Nanoparticle Electrocatalysts for Syngas Modulation

EcoEnergy, EarlyView.
Mixed‐ligand Ag–triazole MOF precursors reconstruct into ligand‐shelled Ag nanoparticle electrocatalysts that retain detectable O/S‐derived interfacial species. By combining ligand‐ratio and potential control, the CO2‐to‐syngas output can be tuned across H2‐rich, near‐equimolar, and CO‐rich regimes.
Ren‐Feng Yang, Xu‐Dong Wu, Yu‐Die Zhang, Wei‐Peng Chen, Xiao‐Hui Li, Qi Zhou, Kai‐Zhong Zhang, Xian‐Yue Song, Hao‐Ran Chu, Hai‐Feng Zhang, Xiao‐Hong Xiong, Mian Li, Xiao‐Chun Huang   +12 more
wiley   +1 more source