Results 1 to 10 of about 582,787 (238)

Intermetallic Cu5Zr Clusters Anchored on Hierarchical Nanoporous Copper as Efficient Catalysts for Hydrogen Evolution Reaction [PDF]

open access: yesResearch, 2020
Designing highly active and robust platinum-free electrocatalysts for hydrogen evolution reaction is vital for large-scale and efficient production of hydrogen through electrochemical water splitting.
Hang Shi   +8 more
doaj   +2 more sources

Rapid 3D printing of hierarchical nanoporous copper structures with self-disintegration capability [PDF]

open access: yesNature Communications
Micro-architected nanoporous metals are widely used in electrochemical and catalytic systems, but conventional powder metallurgy cannot readily produce structurally complex, microscale variants.
Luyang Liu   +10 more
doaj   +2 more sources

Oil-Retention and Oil-Bearing Tribological Properties of Nanoporous Copper Prepared Using a Chemical Dealloying Method

open access: yesMetals, 2023
The nanoporous structure of oil-impregnated porous copper is closely related to its tribological and oil-retention properties, which are essential for its anti-friction and anti-wear, and long-lasting lubrication. In this study, different component Cu-Al
Fei Chen   +7 more
doaj   +2 more sources

Nanoporous copper as an inexpensive electrochemical actuator responsive to sub-volt voltages

open access: yesElectrochemistry Communications, 2021
Metallic actuator materials have been comprehensively studied during the last twenty years, but the studies have been limited to noble metals to date. Here we report reversible dimensional changes in nanoporous copper made by dealloying an Al-Cu alloy. A
Qingguo Bai   +4 more
doaj   +3 more sources

A Study of Electroplated Nanoporous Copper Using Aberration-Corrected Transmission Electron Microscopy [PDF]

open access: yesNanomaterials
Nanoporous Cu foam is widely applied in many fields such as the packaging of electronic power devices. In this study, a sandwich-structured Cu-Zn eutectic alloy precursor composed of Cu0.53Zn0.47/Cu5Zn8/Cu0.53Zn0.47 is prepared through electroplating ...
Jianqiang Wang   +6 more
doaj   +2 more sources

Superior Degradation Performance of Nanoporous Copper Catalysts on Methyl Orange

open access: yesMetals, 2021
The development of low-cost and high-efficiency catalysts for wastewater treatment is of great significance. Herein, nanoporous Cu/Cu2O catalysts were synthesized from MnCu, MnCuNi, and MnCuAl with similar ligament size through one-step dealloying ...
Jinyi Wang, Sen Yang
doaj   +3 more sources

Study on the Effect of Nanoporous Copper Particle Size on Copper-Based Azide [PDF]

open access: yesMicromachines
Preparing copper-based azide by in situ reaction is well-suited for MEMS processing technology and holds promising prospects in the field of MEMS micro-initiators.
Jiabao Wang   +4 more
doaj   +2 more sources

Structure Evolution of Nanoporous Copper by dealloying of Al 17-33 at% Cu alloy

open access: yesInternational Journal of Electrochemical Science, 2015
Three Al-Cu alloys with Cu contents ranging from 17 to 33 at% were prepared by a melt-spun approach, and their dealloying behavior was investigated.
Yalan Xing   +4 more
doaj   +3 more sources

Removal of Heavy Metals from Water and Wastewater Using Nanoporous SBA-15 Adsorbents [PDF]

open access: yesآب و فاضلاب, 2021
Nowadays, provision of sanitary water is one of the main concerns of the world society, and heavy metals are one of the most important pollutants in water resources.
Maryam Fatahi   +4 more
doaj   +1 more source

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