Metal‐organic frameworks (MOFs) with high surface area and tunable chemical structures have attracted tremendous attention. Recently, there has been increasing interest in deriving advanced materials from MOFs for electrochemical energy storage and conversion. This progress report highlights recent breakthroughs in electrocatalysis by using MOF‐based novel catalysts, such as in oxygen reduction and evolution, hydrogen evolution and carbon dioxide reduction. The advantages of preparing electrocatalysts from MOFs are introduced and discussed. Then, the development of MOF derived electrocatalysis‐active products, such as heteroatom‐doped carbon, metal oxide (MO), metal sulfide (MS), metal carbide (MC), metal phosphide (MP) and their hybrids with carbon, are summarized. The detailed functions of these materials in representative electrocatalysis systems are also reviewed. The demonstrated examples will provide understanding in preparing highly active and stable electrocatalysts. The progress report concludes with the future applications of MOF‐based materials in the field of electrocatalysis.
Metal–organic
frameworks (MOFs) have emerged as desirable
cross-functional platforms for electrochemical and photochemical energy
conversion and storage (ECS) systems owing to their highly ordered
and tunable compositions and structures. In this Review, we present
engineering principles promoting the electro-/photochemical performance
of MOF-based materials for ECS by component design and nanostructuring.
Through the discussion of the engineering strategies of pristine MOFs,
MOF composites, and their derivatives for ECS, the superiority and
composition–structure–activity relationships of the
engineered MOF-based materials with advanced components and nanostructures
will be clarified. Finally, we provide a concluding discussion on
the challenges and direction of future development in this emerging
area of MOF-based materials for ECS.
Yolk-shell nanostructures have received great attention for boosting the performance of lithium-ion batteries because of their obvious advantages in solving the problems associated with large volume change, low conductivity, and short diffusion path for Li ion transport. A universal strategy for making hollow transition metal oxide (TMO) nanoparticles (NPs) encapsulated into B, N co-doped graphitic nanotubes (TMO@BNG (TMO = CoO, Ni O , Mn O ) through combining pyrolysis with an oxidation method is reported herein. The as-made TMO@BNG exhibits the TMO-dependent lithium-ion storage ability, in which CoO@BNG nanotubes exhibit highest lithium-ion storage capacity of 1554 mA h g at the current density of 96 mA g , good rate ability (410 mA h g at 1.75 A g ), and high stability (almost 96% storage capacity retention after 480 cycles). The present work highlights the importance of introducing hollow TMO NPs with thin wall into BNG with large surface area for boosting LIBs in the terms of storage capacity, rate capability, and cycling stability.
The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adma.201805430.
Anode MaterialsLithium-ion batteries (LIBs) have been playing a vital role in the development of portable electronics for the last couple of decades, thanks to their high energy storage capabilities and longer cyclic lives. However, the long-term applications of LIBs at larger scale (such as automotive) face severe challenges due
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