Nickel-Vanadium Ni93/V7 alloy represents a specialized composition combining nickel's corrosion resistance with vanadium's strengthening and hydrogen storage capabilities. This alloy finds applications in hydrogen storage systems, catalysis, battery electrodes, and high-strength structural components where the synergistic properties of both elements deliver enhanced performance in energy and materials technologies.
Material Overview
Ni93/V7 exhibits enhanced mechanical strength compared to pure nickel, with vanadium additions providing solid solution and precipitation strengthening effects that increase tensile strength to 500-650 MPa [1]. The alloy demonstrates improved hydrogen absorption capacity and kinetics compared to pure nickel, with vanadium facilitating hydrogen diffusion and storage through lattice expansion effects [2]. Electrical resistivity is approximately 15-20 μΩ·cm, while maintaining good electrical conductivity for electrode applications. The material shows excellent corrosion resistance in alkaline environments, critical for battery and electrochemical applications [3]. Density is approximately 8.8 g/cm³, with melting point around 1440°C. The alloy's catalytic activity for hydrogenation reactions and oxygen reduction surpasses pure nickel, attributed to electronic modifications from vanadium incorporation [4]. Thermal stability extends to 800°C in inert atmospheres, enabling high-temperature processing and applications.
Applications and Advantages
Ni93/V7 serves in hydrogen storage alloys for nickel-metal hydride batteries, providing reversible hydrogen absorption/desorption with high capacity and cycle life [2]. The material functions as an electrocatalyst for alkaline fuel cells and water electrolysis, exhibiting enhanced activity and durability compared to pure nickel catalysts. Structural applications utilize the alloy's high strength-to-weight ratio in aerospace and automotive components requiring corrosion resistance [1]. Chemical processing equipment employs Ni-V alloys for reactors and vessels handling corrosive media at elevated temperatures. The material serves in hydrogenation catalysts for petroleum refining and chemical synthesis, exploiting its activity and sulfur tolerance [4]. Emerging applications include solid-state hydrogen storage for fuel cell vehicles, where the alloy's kinetics enable rapid charging/discharging cycles [3]. Magnetic applications leverage the alloy's tunable magnetic properties for sensors and actuators. Research focuses on nanostructured Ni-V materials for supercapacitor electrodes and advanced battery systems.
Goodfellow Availability
Goodfellow supplies Nickel-Vanadium Ni93/V7 alloy to meet hydrogen storage, catalysis, and high-strength structural requirements. Custom specifications are available to support specialized energy and materials applications.
Explore Ni93/V7 and other advanced materials in Goodfellow's online catalogue: Goodfellow product finder.
References
- [1] Davis, J. R. (Ed.). (2000). Nickel, Cobalt, and Their Alloys. ASM International. https://doi.org/10.1361/ncta2000p001
- [2] Sakintuna, B., Lamari-Darkrim, F., & Hirscher, M. (2007). Metal hydride materials for solid hydrogen storage. International Journal of Hydrogen Energy, 32(9), 1121-1140. https://doi.org/10.1016/j.ijhydene.2006.11.022
- [3] Young, K., Nei, J., Wong, D. F., et al. (2014). Structural, hydrogen storage, and electrochemical properties of Laves phase-related body-centered-cubic solid solution metal hydride alloys. International Journal of Hydrogen Energy, 39(36), 21489-21499. https://doi.org/10.1016/j.ijhydene.2014.01.134
- [4] Trasatti, S. (2000). Electrocatalysis: Understanding the success of DSA®. Electrochimica Acta, 45(15-16), 2377-2385. https://doi.org/10.1016/S0013-4686(00)00338-8