Raney Nickel Coated Nickel Wire Mesh

Catalyst-grade nickel mesh with porous Raney Ni coating

Raney Nickel Coated Nickel Wire Mesh is a high-performance catalytic mesh consisting of a pure nickel wire mesh substrate uniformly coated with activated Raney nickel (porous nickel‑aluminum alloy). The coating is produced by leaching aluminum from Ni‑Al alloy, creating a nanoporous structure with ultra‑high surface area and abundant active nickel sites. It combines the  the high surface area of a Raney-type nickel catalyst with the structural support of a nickel mesh.

Typical Chemical Composition (wt.%)

Mesh Specifications of raney nickel coated wire mesh:

-Substrate: Nickel mesh (Plain/twill weave type, typically 20-100 mesh count，such as 20#0.3mm 30#0.25mm  40#0.19mm  46#0.19mm  46#0.25mm  60#0.18mm  60#0.25mm more).

-Coating: Nickel-Aluminum alloy (which is then activated to Raney nickel, such as 50:50 Ni:Al, 80:20 and 60:40 Ni:Al, etc.).

-Wire diameter: 0.10–1.0 mm

-Coating thickness: 50–200 μm (adjustable)

-Coating Loading： 200-300g/m²

-Forms: Square sheet, Round Screen usually to fits the stack size

-Surface: Porous, gray, catalytically active

Manufacturing Process of raney nickel coated nickel mesh:

Substrate preparation: Pure nickel wire mesh is cleaned and degreased

Coating deposition: Ni‑Al alloy powder is plasma‑sprayed onto the mesh

Activation (leaching): Treated with concentrated NaOH to dissolve Al, forming porous Raney Ni

Washing & stabilization: Rinsed to remove residual alkali; stored under water

Key Characteristics of raney nickel coated nickel wire mesh:

· High Catalytic Activity: Retains the excellent catalytic properties of Raney nickel for hydrogenation reactions (e.g., reduction of nitro compounds, aldehydes, alkynes).

· Structured Form Factor:Unlike powdered Raney nickel, which requires filtration and can cause pressure drops, the mesh form allows for easy installation in reactors, minimal pressure drop, and simple removal.

· Good Thermal Conductivity:The nickel mesh substrate provides a thermally conductive path, helping to manage exothermic reactions and prevent hot spots.

· Mechanical Integrity:The coating is bonded to the mesh, providing durability and resistance to attrition, unlike loose catalyst beds.

· Activation Required:The material is often supplied in a "precursor" state (Ni-Al alloy coated on Ni mesh). The end user activates it by leaching out aluminum with caustic solution (e.g., NaOH) to create the porous Raney structure.

· Ultra-high surface area: 50–150 m²/g, providing massive active sites for catalysis

· Excellent catalytic activity: Superior for hydrogenation, dehydrogenation, and electrochemical reactions

· Strong coating adhesion: Metallurgical bonding via plasma spraying, resistant to fluid erosion

· Good chemical stability: Resistant to alkaline and neutral corrosive environments

· Non-magnetic: Pure nickel substrate remains non‑magnetic

· Porous Structure: Provides maximum surface area for catalytic reactions.

Typical Applications

· Chemical catalysis: Hydrogenation of alkenes, alkynes, nitro compounds, aldehydes, ketones

· Electrochemistry: Electrodes for water electrolysis (hydrogen evolution), fuel cells, batteries

· Petrochemical industry: Refining processes, hydrodesulfurization

· Pharmaceutical & fine chemicals: Synthesis of APIs and specialty chemicals

· Environmental protection: Wastewater treatment, organic pollutant hydrogenation

· Energy storage: Alkaline battery components, hydrogen storage materials