Results 131 to 140 of about 4,143,502 (410)

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Functionally Graded Oxide Scale on (Hf,Zr,Ti)B2 Coating with Exceptional Ablation Resistance Induced by Unique Ti Dissolving

Advanced Science
Multicomponent Ti‐containing ultra‐high temperature ceramics (UHTCs) have emerged as more promising ablation‐resistant materials than typical UHTCs for applications above 2000 °C. However, the underlying mechanism of Ti improving the ablation performance
Junshuai Lv, Wei Li, Yanqin Fu, Menglin Zhang, Lingxiang Guo, Fanyu Lu, Jiachen Li, Tao Li, Yulei Zhang, Hejun Li   +9 more
doaj   +1 more source

Research on the effect of sizing agent on the interface and compression performance of carbon fiber composites

Frontiers in Materials
The present study involves the preparation of continuous carbon fiber samples treated with epoxy-based sizing agent (EP) and vinyl ester resin-based sizing agent (VE), alongside untreated fibers, aiming to explore the influence pattern of interfacial ...
Xinfeng Ouyang, Guojie Ge, Yizhi Geng, Yangyang Zong, Tong Pan, Xiao Wang, Weiwei Zhu, Yuefeng Bai, Yunpeng Liu, Shuo Duan, Kangmin Niu   +10 more
doaj   +1 more source

Circumferential shaft seal [PDF]

, 1980
A circumferential shaft seal is described which comprises two sealing rings held to a rotating shaft by means of a surrounding elastomeric band. The rings are segmented and are of a rigid sealing material such as carbon or a polyimide and graphite fiber ...
Ludwig, L. P.
core   +1 more source

1D Light‐Emitting MAPbBr3 Perovskite Encapsulated in Carbon Nanotubes

Advanced Functional Materials, EarlyView.
Encapsulation of MAPbBr3 perovskite in single‐walled carbon nanotubes (SWCNTs) yields a hybrid nanomaterial with distinctive optoelectronic properties. Perovskite confinement induces a unified single‐peak photoluminescence (PL) with a reduced lifetime, while charge transfer alters the optical properties of nanotubes.
Valentina A. Eremina, Timofei Eremin, Hua Jiang, Rakesh Dhama, Jokotadeola Odutola, Humeyra Caglayan, Nikolai V. Tkachenko, Petr A. Obraztsov   +7 more
wiley   +1 more source

Twin Toughening‐Driven Martensitic Transformation Strategy Synergistic Improvement for Plasticity‐Thermal Shock Resistance of (Hf─Zr─Ti)C Ceramic Coating in Severe Thermal Environments

Advanced Science
The inherent brittleness and insufficient thermal shock resistance of ultra‐high temperature ceramic (UHTC) in severe thermal environments (above 2000 °C) remain significant challenges.
Jiachen Li, Yulei Zhang, Yanqin Fu, Tao Li, Jian Zhang, Deyu Yang, Lingfei Cao, Fanyu Lu, Junhao Zhao, Junshuai Lv, Hejun Li   +10 more
doaj   +1 more source

Graphite fiber surface treatment to improve char retention and increase fiber clumping [PDF]

Composites containing carbon and graphite fibers can release fibers into the atmosphere during a fire. This release can potentially cause failure in some types of electrical equipment.
Paul, J. T., Jr., Weldy, W. E.
core   +1 more source

Decoding the Structure of Benzodithiophene Polymers for High‐Efficiency Organic Solar Cells

Advanced Functional Materials, EarlyView.
This study reveals a unique solid mesophase in top‐performing benzodithiophene‐based polymers for solar cells, comprising stacked solid‐like and liquid‐like layers. Combining nanoscale fibrillar domains with amorphous regions, it introduces a new structural paradigm.
Matteo Sanviti, Sara Marina, Xabier Rodriguez‐Martínez, Jesika Asatryan, Valerio Di Lisio, Sandra Hultmark, Junkal Gutierrez, Eduardo Solano, Jeromy J. Rech, Eugenio L. Solla, Wei You, Agnieszka Tercjak, M. Eugenio Vázquez, Daniele Cangialosi, Christian Müller, Harald Ade, Jaime Martin   +16 more
wiley   +1 more source

Biobased Structurally Compatible Polymer Blends Based on Lignin and Thermoplastic Elastomer Polyurethane as Carbon Fiber Precursors

, 2018
The production of carbon fibers based on lignin reduces the cost and the environmental impact associated with carbon fiber manufacturing. However, the melt processing of lignin as a carbon fiber precursor is challenging due to its brittleness and limited
M. Culebras, A. Beaucamp, Yan Wang, Manuel M. Clauss, E. Frank, M. Collins   +5 more
semanticscholar   +1 more source

A small-scale test for fiber release from carbon composites [PDF]

A test method was developed to determine relative fiber loss from pyrolyzed composites with different resins and fiber construction. Eleven composites consisting of woven and unwoven carbon fiber reinforcement and different resins were subjected to the ...
Fish, R. H., Gilwee, W. J., Jr.
core   +1 more source