Graphene-based polymer nanocomposites as barrier coatings for corrosion protection

Processable poly(2-butylaniline)/hexagonal boron nitride nanohybrids for synergetic anticorrosive reinforcement of epoxy coating

Amino-functionalized Ti3C2Tx with anti-corrosive/wear function for waterborne epoxy coating

Flame retardancy and corrosion resistance required by high-performance epoxy resins (EP), especially in the field of composites and coating, are difficult to achieve simultaneously. In this study, a facile method was put forward to impart both flame-retardant and anti-corrosive properties to epoxy resins, via chemically introducing bifunctional phosphorus-containing triazole derivatives (D-ATA). In the resultant epoxy thermosets, the phosphorylated triazole structure directly contributed to flame retardancy, while the triazole structure can effectively suppress the electrochemical corrosion. With only 5 wt% loading of D–ATA, the epoxy thermoset showed excellent flame retardancy with a high limiting oxygen index of 33.2%, V-0 rating in UL-94 tests and significant suppression of heat and smoke release in cone calorimetry tests. Meanwhile, the electrochemical corrosion tests confirmed that the corrosion protection efficiency of EP/5 wt% D-ATA increased by 95.3% in comparison to neat EP. Due to hydrogen bonding and π-π interactions caused by the introduction of D-ATA, the versatile epoxy thermoset also had enhanced mechanical properties with the improved tensile and flexural strength. Moreover, the anti-corrosion and flame-retardant mechanisms were also discussed in detail. This work provides a facial strategy for preparing versatile high-performance epoxy thermoset with fire safety and corrosion resistance for various applications.

Mechanically strong and flame-retardant epoxy resins with anti-corrosion performance

Synthesis of graphene oxide nanosheets functionalized by green corrosion inhibitive compounds to fabricate a protective system

Reinforcing the corrosion protection property of epoxy coating by using graphene oxide–poly(urea–formaldehyde) composites

Graphene oxide–poly(urea–formaldehyde) composites for corrosion protection of mild steel

A Rational Design of Garnet-Type Li7la3zr2o12 with Ultrahigh Moisture Stability

Garnet‐type Li6.5La3Zr1.5Ta0.5O12 (LLZTO), a promising solid‐state electrolyte, is reported to exhibit lithiophobicity. Herein, it is demonstrated that the origin of the lithiophobicity is closely related to the surface compositions of both the lithium and LLZTO. Surface impurities with high melting points such as Li2O, Li2CO3, LiOH, or LiF inhibit the wettability between lithium metal and LLZTO, and the widely adopted compositing strategy may improve the wettability by merely breaking the surface impurity layers. A simple but effective “polishing‐and‐spreading” strategy is proposed to remove the surface impurities and obtain clean Li/LLZTO interfaces. Thus, a tight and continuous Li/LLZTO interface with an interfacial resistance of 17.5 Ω cm2 is achieved, which leads to stable cycling of the symmetric Li cells and a critical current density up to 2.8 mA cm–2. This work provides a new perspective to understand the lithiophilicity of garnet‐type electrolytes and contributes to designing robust Li/garnet interfaces.

Origin of Lithiophilicity of Lithium Garnets: Compositing or Cleaning?

Increasing the electrochemical stability window for polyethylene-oxide-based solid polymer electrolytes by understanding the affecting factors

Hongpeng Zheng

Papers

Reinforcing the corrosion protection property of epoxy coating by using graphene oxide–poly(urea–formaldehyde) composites

Graphene oxide–poly(urea–formaldehyde) composites for corrosion protection of mild steel

A Rational Design of Garnet-Type Li7la3zr2o12 with Ultrahigh Moisture Stability

Origin of Lithiophilicity of Lithium Garnets: Compositing or Cleaning?

Increasing the electrochemical stability window for polyethylene-oxide-based solid polymer electrolytes by understanding the affecting factors