Can heterojunctions guide the future energy storage?

Meanwhile, synthesis routes, characterization and calculation methods, as well as electrochemical performances of heterostructures are roundly reviewed. Furthermore, prospects and potential directions of heterojunctions are proposed, aiming to guide the future energy storage.

How do heterostructures affect energy storage?

However, in the realm of energy storage, heterostructures primarily involve interaction with ion and electron transfer behavior and dynamics, as well as dynamic evolution during electrochemical reaction.

What are heterogeneous electrode materials in energy storage systems?

Heterogeneous electrode materials in energy storage systems provide a distinct advantage by leveraging the strengths of individual bulk components and heterointerfaces.

Can heterointerfaces be used in energy storage electrodes?

This report emphasizes the potential of heterointerfaces in the realm of energy storage electrodes. In electrochemistry, coupled multi-physical fields are interconnected and influence each other. The movement of ions or electrons during the electrochemical reactions gives rise to electrical current and heat.

How is charge stored in a heterostructured electrode?

While in the charging process, electrons flow back from the circuit to the heterointerface, where they accumulate and form a charge distribution, thus enabling charge storage. The charge storage mechanism of a type-II (Figure 11d) heterostructured electrode is achieved through the separation and transfer of electrons and holes.

Why are graphene and MXene used in heterojunctions?

Graphene and MXene possess very narrow energy band gap and high electron conductivity, which can boost the reaction kinetics and suppress the volume expansion of metal-compounds in heterojunctions (graphene/metal-compound and MXene/metal-compound heterojunctions).