Two-dimensional heterostructures built from ultrathin CeO₂ nanosheet surface-coordinated and confined metal–organic frameworks with enhanced stability and catalytic performance

Abstract

Two-dimensional (2D) metal-organic frameworks (MOFs) based heterostructures will be greatly advantageous to enhance catalytic performance because it increases contact surface and charge transfer. Herein, a novel 2D heterostructures named as...

Anchoring Ce-modified Ni(OH)2nanoparticles on Ni-MOF nanosheets to enhances the oxygen evolution performance

“…Hence, the real active material is Ni(OH) 2 . As reported, 49–51 CeO 2 as electron-accepting sites can significantly promote intrinsic electron transfer, which could contribute to the higher OER activity and stability of electrocatalysis.…”

In Situ Electrochemical Reconstitution of CF–CuO/CeO2 for Efficient Active Species Generation

“…The interlayer spacing of CuO is 0.25 nm, corresponding to the (111) crystal plane . Meanwhile, the interlayer spacing of CeO 2 is 0.32 nm, which can be identified as the (111) plane . Additionally, the corresponding elemental mapping images of CF–CuO/CeO 2 further indicate the excellent dispersion of CeO 2 nanoparticles (Figure S1b).…”

“…The industrialization of electrocatalysis is one of the most promising ways to achieve a sustainable supply of high-value-added chemicals and reduce the use of fossil fuels. − In the field of electrocatalysis, it is generally believed that the insufficient activity and poor selectivity and stability of electrocatalysts are the biggest obstacles to the industrialization of electrocatalytic technology, which motivates researchers to solve this criticism through the construction of electrode materials, optimization of electrolytes, design of electrolytic cells, and other approaches. − However, most of the current research mainly focuses on exploring new complicated materials to construct electrocatalysts, conversely ignoring the fundamental insight of the correlation between the intrinsic nature of the material and catalytic activity . In fact, most non-noble metal catalysts, especially transition metal oxides, exhibit satisfactory electrocatalytic activity under an efficient electrochemical reconfiguration. − Apparently, in situ electrochemical activation can optimize the chemical composition and electronic structure of a catalyst, prompting the exposure of more active sites, thereby further enhancing the electrocatalytic performance.…”

An electrochemical modification strategy to fabricate NiFeCuPt polymetallic carbon matrices on nickel foam as stable electrocatalysts for water splitting

“…On the other hand, noble metals such as platinum (Pt) 12 , iridium (Ir) 13 , ruthenium (Ru) 14 and corresponding oxides 15 are used as benchmark electrocatalysts towards EWS given their high efficiency and stability. Nevertheless, high cost and low abundance greatly hinder the further application of noble metal electrocatalysts 16 . Therefore, it is desired to develop low-cost EWS catalysts exhibiting both dramatic catalytic performance and stability, and cost-effectiveness large-scale industrial production.…”

“…Nevertheless, high cost and low abundance greatly hinder the further application of noble metal electrocatalysts. 16 Therefore, it is desired to develop low-cost EWS catalysts exhibiting both dramatic catalytic performance and stability, and cost-effectiveness for large-scale industrial production.…”