Fabrication of superhydrophobic reduced-graphene oxide/nickel coating with mechanical durability,self-cleaning and anticorrosion performance

• 来源期刊: 纳米材料科学（英文版）
• 年，卷（期）: 2020,（2）
• 页码范围: 151-158
• 页数: 8页
• 语种: 中文

摘要

There is a great challenge to fabricate superhydrophobic coating with excellent mechanical durability and corrosion resistance.Inspired by the pinecone-shaped structure,a novel reduced-graphene oxide(rGO)/Ni composite coating with pinecone-like micro/nanostructures was fabricated successfully on a stainless steel sub-strate using a simple electrodeposition method combining Ni pre-deposition and an elevated current assistant approach.The results show that the coating is of self-cleaning and superhydrophicity with a water contact angle(CA)of 162.7°±0.8° and a sliding angle(SA)of 2.5°±1.0°.Importantly,the coating still maintains the excellent self-cleaning and superhydrophicity,water CA of 155.8°±1.2° and SA of 5.9°±1.2°,even after 100-cycle me-chanical abrasion.Meanwhile,the coating also exhibits good anticorrosion performance in 3.5 wt％NaCl solution,with 99.98％inhibition efficiency.The simple fabrication method may provide a cost-effective way to prepare mechanically durable,anticorrosive,self-cleaning and superhydrophobic coatings on metal substrates.