Results 51 to 60 of about 2,194 (234)

Support‐Controlled Reaction Pathways via Dynamic Sulfur‐Mediated Interfaces for Selective Urea Electrolysis

Advanced Functional Materials, EarlyView.
Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler, Lucía Vizcaíno‐Anaya, Ahmad Tayyebi, José Manuel Vila‐Fungueiriño, María del Carmen Giménez‐López   +4 more
wiley   +1 more source

Effect of plasma electrolytic polishing on the surface morphology and mechanical properties of CuCrZr porous structure fabricated by selective laser melting

Journal of Materials Research and Technology
Due to the low laser absorption rate and high thermal conductivity of the copper alloy powder, results in poor surface quality of CuCrZr alloy porous structure fabricated by selective laser melting (SLM), which limits its research and application ...
Zezhou Kuai, Pengfei Zhang, Huarong Wu, Zhonghua Li, Bin Liu, Chao Suo, Zhicheng Yang, Jie Ren   +7 more
doaj   +1 more source

Shape Memory Microneedle to Prevent Risks of Reproductive Hormone Therapy by Switching Sustained to Burst Release Under a Single Transdermal Insertion

Advanced Functional Materials, EarlyView.
A shape‐memory microneedle system enables reproductive hormone therapy through a single transdermal insertion. The X‐shaped device sustains follicle‐stimulating hormone release for three days, and mild heating restores the O shape to trigger burst human chorionic gonadotropin release.
Sungwoo Cho, Hyunjae Kim, Seung Eun Yu, Sangmin Lee, Ji Youn Lee, Mi‐Lan Kang, Kang Suk Lee, Young Sik Choi, Hak‐Joon Sung   +8 more
wiley   +1 more source

Sustainable Electrochemical Synthesis of High‐Quality MXenes: Mechanistic Insights, Applications, Challenges, and Technological Prospects

Advanced Functional Materials, EarlyView.
Electrochemical etching provides an eco‐friendly alternative to hazardous HF methods for MXene production. This approach facilitates the selective isolation of the A‐layer from MAX phases with tunable surface terminations. Controlling voltage, electrolytes, temperature, and duration enables the optimal structural integrity. Nevertheless, existing scale
Jagdeep Singh, Madhusudhana M Devadiga, Santosh K. Tiwari, AS Dhaliwal, Gurpreet Singh Selopal   +4 more
wiley   +1 more source

General Synthesis of Amorphous Pd‐Based Nanoparticles Towards Highly Efficient Nitrate‐to‐Ammonia Electrocatalysis

Advanced Functional Materials, EarlyView.
A family of amorphous palladium‐based multi‐component phosphides nanoparticles, synthesized via a robust one‐step wet‐chemical method, overcoming the immiscibility of different elements and the difficulty in forming a stable, disordered structure. When applied in the electrochemical nitrate reduction reaction, these nanocatalysts effectively suppress ...
Lei Xu, Chuhao Luan, Mingzi Sun, Weiwei Chen, Xiaozhi Liu, Chen Ma, Long Zheng, Gang Wang, Peng Han, Ping Gu, Xiao Wang, Chenhao Shu, Cheng Lyu, Zhenyu Zhang, Nailiang Yang, Hongyan He, Xiaohong Li, Dong Su, Bolong Huang, Wenjun Zhang, Ye Chen   +20 more
wiley   +1 more source

GREY RELATIONAL ANALYSIS AND ITS APPLICATION ON SURFACE PROPERTIES DURING EDM AND POWDER MIXED EDM [PDF]

Journal of Engineering Science and Technology, 2017
Electrical discharge machining is an extensively used non-conventional process for material removal in die manufacturing and aerospace industries. The mechanism of powder mixed electric discharge machining is very different from that of electrical ...
S. TRIPATHY, D. K.TRIPATHY
doaj  

Relations between Electrolytic Conditions and Properties of the Deposited Copper Powders

Journal of the Japan Society of Powder and Powder Metallurgy, 1964
In manufacturing metal powders by the electrolytic process, it is well known that properties of powders deposited depend on electrolytic conditions to be employed. In this paper, the properties of the copper powders which were electrodeposited from copper sulphate solution, were studied in relation to their electrolytic conditions.
Shirayanagi, Tetsuo, Nanya, Yuji
openaire   +2 more sources

Characteristics of Electrolytic Copper Powder Compaction by Differential Speed Rolling.

JSME International Journal Series C, 1997
Differential speed rolling of electrolytic copper powder is conducted under conditions of carefully controlled powder feed volume. Roll speed ratios are changed in the range of 1.00 to 1.50 by choosing different combinations of roll diameters. The rolling load increases with an increase in the ratio of the powder feed volume to the strip speed.
MASAKI, Saiji, HIROHATA, Tetsuya, HAGA, Toshio   +2 more
openaire   +2 more sources

Polyimide‐Linked Hexaazatriphenylene‐Based Porous Organic Polymer with Multiple Redox‐Active Sites as a High‐Capacity Organic Cathode for Lithium‐Ion Batteries

Advanced Materials, EarlyView.
A high‐capacity polyimide‐linked porous organic polymer (HAT‐PTO) incorporating numerous redox‐active centers is synthesized via a hydrothermal reaction, delivering a high theoretical capacity of 484 mAh g−1. In situ hybridization with carboxyl‐functionalized multiwalled carbon nanotubes enhances conductivity and stability, achieving 397 mAh g−1 at C ...
Arindam Mal, Jonathan Caroni, Asia Patriarchi, Olivera Luzanin, Rafael Ramos, Jan Bitenc, Manuel Melle‐Franco, Manuel Souto   +7 more
wiley   +1 more source

Atomistic Mechanisms Triggered by Joule Heating Effects in Metallic Cu‐Bi Nanowires for Spintronics

Advanced Materials, EarlyView.
Bi doped metallic Cu nanowires are promising for spintronics thanks to the stabilization of a giant spin Hall effect. However, heat resulting from current injection forces Bi to leave solution, forcing segregation into monoatomic decorations which evolve into coherent crystalline aggregates.
Alejandra Guedeja‐Marrón, Juan Ignacio Beltrán, Matilde Saura‐Múzquiz, Paolo Perna, M. Carmen Muñoz, Lucas Pérez, Maria Varela   +6 more
wiley   +1 more source