Ultrathin and porous δ-FeOOH modified Ni₃S₂ 3D heterostructure nanosheets with excellent alkaline overall water splitting performance

Abstract

The design and synthesis of bifunctional heterostructure catalysts can effectively achieve excellent bi-function electrolyzed water catalyzed reactions. Nevertheless, it remains a challenge to explore the exact active centers for the...

Co9S8 Nanosheet Coupled Cu2S Nanorod Heterostructure as Efficient Catalyst for Overall Water Splitting

“…The special morphology of the catalyst can offer numerous exposed active sites, and the open morphology is also conducive to the formation of an electrolyte diffusion pathway and a gas products release pathway. The nanowire–nanosheet, nanosheet–nanorod, and nanosheet–nanosheet heterostructure catalysts with excellent performance have been successfully synthesized. − Therefore, the catalytic performance of heterogeneous catalysts can be further improved by designing the special morphology. Recently, Cu-based materials, especially copper sulfides, have been attracting increasing attention because of their inexpensive price, environmental friendliness, and resource abundance.…”

Aerosol‐assisted synthesis of bimetallic nanoparticle‐loaded bamboo‐like N‐doped carbon nanotubes as an efficient bifunctional oxygen catalyst for Zn‐air batteries

“…24,41,42 A similar phenomenon was also noticed in the Fe 2p spectrum, where the intensities of the Fe 2+ and Fe 3+ peaks increased, whereas that of the Fe 0 peak decreased (Figure 5B). 28,43,44 Furthermore, three peaks related to metal-O bonding, OH À , and absorbed water molecules were observed in the O 1s spectrum (Figure 5C). 45,46 These results suggested that the formation of surface hydrated oxides and metal (oxy) hydroxides occurred on the activated surface of NiFe alloy during the OER.…”

Promoting electrocatalytic overall water splitting by sulfur incorporation into CoFe-(oxy)hydroxide

“…The gas bubbles generated on the surface during the HER and OER exert enough force to separate from the surface, which causes the destruction of the surface, which depends on the size of the generated bubbles. 80 The size of the gas bubbles generated on the surface of nanosheets has been reported to be much smaller than those formed on a flat surface; 81 the effect of this force to destroy the surface was also much smaller. Therefore, the S-(Co,Fe)OOH nanosheet electrocatalyst can maintain high durability, even during the HER and OER.…”