Results 51 to 60 of about 729,228 (244)

Effect of nickel precursor and catalyst activation temperature on methanation performance

open access: yesMongolian Journal of Chemistry, 2018
This work studied an effect of anionic precursor on the preparation of active and fine nickel metal catalysts for syngas methanation. Nickel catalysts were pr¬epared by impregnation-co-precipitation method.
Battulga Buyan-Ulzii   +4 more
doaj   +1 more source

Organic Materials of Tomorrow: Horizons of Artificial Intelligence

open access: yesAdvanced Materials, EarlyView.
This review examines machine learning techniques accelerating the discovery of organic semiconductors by linking molecular structure to properties. Key methods include graph neural networks, generative models, and active learning. Applications to organic photovoltaics demonstrate practical impact.
Harold Mena   +3 more
wiley   +1 more source

Surface Area and Porosity Measurements of Steam Reforming and Methanation Catalysts

open access: yesJournal of King Saud University: Engineering Sciences, 1995
Supported nickel catalysts are used for steam reforming of natural gas and methanation of carbon oxides in hydrogen-rich streams in the production of ammonia, methanol and hydrogen.
Yaw D. Yeboah   +2 more
doaj   +1 more source

Catalyst Deactivation Modes in Nickel-Catalyzed Suzuki–Miyaura Cross-Coupling Reactions Using an NHC-Pyridonate Ligand [PDF]

open access: yes
The catalytic activity of an NHC-pyridonate-supported nickel(0) complex for Suzuki–Miyaura coupling of aryl halides was evaluated. Product formation was observed in the absence of a basic additive.
C. Rose, Kennedy   +3 more
core   +2 more sources

Defect‐Engineered Microwave‐Responsive Ni@C Composites From Waste PET for Catalytic Plastic Upcycling

open access: yesAdvanced Materials, EarlyView.
A circular upcycling strategy transforms waste poly(ethylene terephthalate) bottles into microwave‐responsive Ni@C catalyst featuring lattice‐distorted nickel cores and defective carbon shells. These strain‐rich heterointerfaces enhance dielectric loss and promote localized microwave hotspots, accelerating peroxymonosulfate activation and polymer‐chain
Xiao Lu   +7 more
wiley   +1 more source

Effect of Coal Ash on the Steam Reforming of Simulated Bio-oil for Hydrogen Production over Ni/γ-Al2O3

open access: yesBioResources, 2016
An improved system for hydrogen production by the steam reforming of simulated bio-oil was developed. The coal ash was packed in front of nickel-based catalysts, acting as a guard catalyst.
Fan Zhang   +5 more
doaj   +1 more source

Active Phase of Nickel Electrocatalysts Driving Alkaline Hydrogen Evolution

open access: yesAdvanced Materials, EarlyView.
Using depth‐resolved and operando spectroscopic measurements coupled with electrochemical mass spectrometry, the authors uncover the critical role of sub‐surface oxidised species in increasing the activity and durability of Ni‐based cathodes for hydrogen evolution.
Yifeng Wang   +17 more
wiley   +1 more source

Investigation of Thermodynamic Model for Ceria Promoted Nickel Catalyst Supported on Nanocrystalline MgO in Dry Reforming of Methane [PDF]

open access: yesمجله مدل سازی در مهندسی, 2018
In this research paper, ceria promoted nickel catalysts supported on nanocrystalline MgO were prepared and employed in methane reforming with carbon dioxide for syngas production.
Masoud Khajenoori   +2 more
doaj   +1 more source

Comparative study of the dry reforming of methane on fluidised aerogel and xerogel Ni/Al2O3 catalysts

open access: yes
The xerogel and aerogel Ni(20 wt %)/Al2O3 catalysts were prepared through incipient-wetness-impregnation and co-precipitation-supercritical drying (CP-SCD), respectively.
Liao, Xin, Zhao, Yongxiang, Jiang, Zheng
core   +1 more source

Review of Inorganic Separator Engineering for Next‐Generation Lithium–Sulfur Batteries: Compromise or Cornerstone?

open access: yesAdvanced Materials, EarlyView.
Inorganic compound‐modified separators transform lithium–sulfur batteries from passive polysulfide confinement to active reaction‐pathway regulation. A Practical Relevance Index (PRI)‐guided framework bridges interfacial chemistry of inorganic separators with practical constraints, establishing unified design principles for scalable, high‐energy ...
Yuting Qin   +7 more
wiley   +1 more source

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