The synthesis of anode electrocatalyst with high activity and durability for methanol oxidation reaction has been one of the main focuses of researchers in recent years. Several works are reviewed ...

A comprehensive and critical review on recent progress in anode catalyst for methanol oxidation reaction

Electrocatalysts for electrooxidation of direct alcohol fuel cell: chemistry and applications

A Review on Ceo2‐Based Electrocatalyst and Photocatalyst in Energy Conversion

Multi-dimensional Pt/Ni(OH)2/nitrogen-doped graphene nanocomposites with low platinum content for methanol oxidation reaction with highly catalytic performance

With the development of renewable energy systems, clean hydrogen is burgeoning as an optimal alternative to fossil fuels, in which its application is promising to retarding the global energy and environmental crisis. The hydrogen evolution reaction (HER), capable of producing high-purity hydrogen rapidly in electrocatalytic water splitting, has received much attention. Abundant research about HER has been done, focusing on advanced electrocatalyst design with high efficiency and robust stability. As potential HER catalysts, metal nanoclusters (MNCs) have been studied extensively. They are composed of several to a hundred metal atoms, with sizes being comparable to the Fermi wavelength of electrons, that is, < 2.0 nm. Different from metal atoms/nanoparticles, they exhibit unique catalytic properties due to their quantum size effect and low-coordination environment. In this review, the activity-enhancing approaches of MNCs applied in HER electrocatalysis are mainly summarized. Furthermore, recent progress in MNCs classified with different stabilization strategies, that is, the freestanding MNCs, MNCs with organic, metal and carbon supports, are introduced. Finally, the current challenges and deficiencies of these MNCs for HER are prospected.

Advances in the Electrocatalytic Hydrogen Evolution Reaction by Metal Nanoclusters-based Materials.

Fabrication of 3D ordered honeycomb-like nitrogen-doped carbon/PANI composite for high-performance supercapacitors

Worm-like PtP nanocrystals supported on NiCo2Px/C composites for enhanced methanol electrooxidation performance

Electrochemically converting nitrate to ammonia is a promising route to realize artificial nitrogen recycling. However, developing highly efficient electrocatalysts is an ongoing challenge. Herein, we report the construction of stable and redox-active zirconium metal-organic frameworks (Zr-MOFs) based on Zr6 nanoclusters and redox-reversible tetrathiafulvalene (TTF) derivatives as inorganic nodes and organic linkers, respectively. The redox-active Zr-MOF can facilitate the in situ reduction of noble metal precursors free of external reductants and realize the uniform nucleation of noble metal nanodots (NDs) on Zr-MOF, achieving the preparation of M-NDs/Zr-MOF (M = Pd, Ag, or Au). The highly porous Zr-MOF with good conductivity can facilitate the mass transfer process. Among the M-NDs/Zr-MOF catalysts, Pd-NDs/Zr-MOF exhibits the highest electrocatalytic activity, delivering a NH3 yield of 287.31 mmol·h-1·g-1cat. and a Faradaic efficiency of 58.1%. The proposed interfacial reduction nucleation strategy for anchoring M NDs on Zr-MOFs can be applied to other challenging energy conversion reactions.

Interfacial Reduction Nucleation of Noble Metal Nanodots on Redox-Active Metal-Organic Frameworks for High-Efficiency Electrocatalytic Conversion of Nitrate to Ammonia.

One-pot construction of the carbon spheres embellished by layered double hydroxide with abundant hydroxyl groups for Pt-based catalyst support in methanol electrooxidation

Electrocatalytic carbon dioxide (CO2) reduction is considered as an economical and environmentally friendly approach to neutralizing and recycling greenhouse gas CO2. However, the design of preeminent and robust electrocatalysts for CO2 electroreduction is still challenging. Herein, we report the in-situ growth of dense CuOx nanowire forest on 3D porous Cu foam (CuOx-NWF@Cu-F), which can be directly applied as a freestanding and binder-free working electrode for highly effective electrocatalytic CO2 reduction. By adjusting the surface morphology and chemical composition of CuOx nanowires via surface reconstruction, large electrochemically active surface area and abundant Cu(+1) sites were generated, leading to remarkable activity for CO2 electroreduction. The as-prepared hierarchical conductive electrode exhibited an enhanced Faradaic efficiency of 15.0% for ethanol formation (FEC2H5OH) and a total Faradaic efficiency of 69.4% for all carbonaceous compounds (FEC-total) at a mild applied potential of –0.45 V vs. RHE in 0.1 M KHCO3 electrolyte. It achieved a 4-fold increase in FEC-total than that of Cu nanowire forest supported on 3D porous Cu foam (Cu-NWF@Cu-F) obtained by in-situ reduction of the CuOx-NWF@Cu-F via annealing at H2 atmosphere, and thereby effectively suppressed the hydrogen evolution side-reaction.

https://www.sciopen.com/article_pdf/1572036281554792450.pdf

In-Situ Grown CuO
 x Nanowire Forest on Copper Foam: A 3D Hierarchical and Freestanding Electrocatalyst with Enhanced Carbonaceous Product Selectivity in CO
 2Reduction

Minghang Jiang

Papers

Fabrication of 3D ordered honeycomb-like nitrogen-doped carbon/PANI composite for high-performance supercapacitors

Worm-like PtP nanocrystals supported on NiCo2Px/C composites for enhanced methanol electrooxidation performance

Interfacial Reduction Nucleation of Noble Metal Nanodots on Redox-Active Metal-Organic Frameworks for High-Efficiency Electrocatalytic Conversion of Nitrate to Ammonia.

One-pot construction of the carbon spheres embellished by layered double hydroxide with abundant hydroxyl groups for Pt-based catalyst support in methanol electrooxidation

In-Situ Grown CuO x Nanowire Forest on Copper Foam: A 3D Hierarchical and Freestanding Electrocatalyst with Enhanced Carbonaceous Product Selectivity in CO 2Reduction