Results 141 to 150 of about 1,641,600 (302)

Regio‐Selective Electrocatalysis in Single‐Wall Carbon Nanotubes: Platinum Inside for Hydrogen Evolution Reaction/Hydrogen Oxidation Reaction and Ruthenium Outside for Oxygen Evolution Reaction

Carbon Energy, EarlyView.
A Pt‐in/Ru‐out single‐wall carbon nanotube architecture spatially separates HER/HOR and OER active sites, enabling high HER/HOR currents at low overpotential, durable OER activity, and strong resistance to Fe3+ poisoning, offering a promising bifunctional platform for unitized regenerative fuel cells.
Manoj Shanmugasundaram, Samuel Itziksohn, David Zitoun   +2 more
wiley   +1 more source

Impact of A‐Site Sr Substitution in LaFeO3 on Syngas Selectivity During Chemical Looping Dry Reforming of Methane (CL‐DRM)

Chemistry – A European Journal, EarlyView.
Sr doping regulates oxygen exchange and methane activation in LaFeO3, suppressing nonselective CH4 cracking and coke formation during CL‐DRM. La0.7Sr0.3FeO3 provides the optimal balance, delivering ∼40% CH4 conversion, an H2/CO ratio of 2, and >95% carbon balance.
Ganesh Jabotra, Pradeep Kumar Yadav, Lorenzo Stievano, Moulay Tahar Sougrati, Hervé Vezin, Axel Löfberg, Sébastien Royer, Sudhanshu Sharma, Jean‐Philippe Dacquin   +8 more
wiley   +1 more source

Application and Mechanism of SPD(Spark Plasma Sintering) Systems and Technology

, 1999
Spark Plasma Sintering (SPS) is a newly developed process sintering- a synthesis and processing technique - which makes possible sintering and sinter-bonding at low temperatures and short periods by charging the intervals between powder particles with ...
Kwon, Young-Soon
core   +1 more source

Transition Metal Compounds as Thermochromic Materials: Classification, Properties, Limitations, and Applications

EcoEnergy, EarlyView.
This review systematically examines how different transition metal compounds—such as binary and multinary metal oxides, halides, sulfides, and salts—exhibit thermochromism based on the d‐electron configurations of their transition metal cations. It focuses on three main mechanisms of thermochromism: phase transition, charge transfer, and bandgap change.
Jie Wang, Shan Wang, Long Yuan, Ling Zuo, Hui Qi, Changmin Hou   +5 more
wiley   +1 more source

Recovery and Repurposing of End‐of‐Life Graphitic Anodes for Green Lithium‐Ion Batteries

EcoEnergy, EarlyView.
This review summarizes the degradation mechanisms of spent graphite anodes in lithium‐ion batteries and highlights key recycling, regeneration, and modification strategies, including hydrometallurgical and pyrometallurgical approaches. It also discusses recent advances in surface engineering, structural regulation, and material hybridization, offering ...
Wei Wei, Weiguo Liu, Jiangqi Zhou
wiley   +1 more source

Evaluation of microstructure and mechanical properties of Al-TaC composites prepared by spark plasma sintering process

, 2017
Evaluation of microstructure and mechanical properties of Al-TaC composites prepared by spark plasma sintering ...
M Alizadeh (13585855), T Ebadzadeh (13585858), Kamyar Shirvani Moghaddam (13077828), E Ghasali (13585846), AH Pakseresht (14112615)   +4 more
core  

Flash spark plasma sintering of pure TiB2

, 2020
A Spark Plasma Sintering (SPS) furnace was used to Flash-Sinter (FS) pure titanium diboride (TiB2) powder. A pre-sintering green body (Ø= 20 mm, relative density ?60%) was used for the Flash-SPS using a dieless configuration with current passing entirely
Shuai Fu, Diletta Sciti, Salvatore Grasso, Simone Failla   +3 more
core  

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

Dynamic Reconstruction of Atomically Dispersed Copper Catalysts for CO2 Reduction: From In Situ Observations to Rational Design

EcoEnergy, EarlyView.
Dynamic reconstruction transforms atomically dispersed Cu catalysts into authentic working‐state active phases during CO2 electroreduction. By integrating operando characterization, multiscale simulations, and AI‐assisted predictive modeling, this review establishes a framework for understanding, predicting, and rationally engineering catalyst ...
Jin Liu, Yue‐Wen Fang
wiley   +1 more source

Tailoring Plate-like Grained ZrB2 Ceramic via a Strong Magnetic Field Alignment Method Followed by Spark Plasma Sintering

, 2012
Through strong magnetic field alignment (SMFA) method followed by spark plasma sintering (SPS), dense tailored ZrB2 ceramic could be prepared using the plate-like grains as initial material.
胡春峰、黄庆
core