Exfoliated 2D Layered and Nonlayered Metal Phosphorous Trichalcogenides Nanosheets as Promising Electrocatalysts for CO2 Reduction.
Honglei Wang,Yunfei Jiao,Bing-Cai Wu,Dayong Wang,Yue Lian Hu,Fei Liang,Chensi Shen,Andrea Knauer,Dan Ren,Hongguang Wang,Peter A. van Aken,Hongbin Zhang,Michael Grätzel,Zdeněk Sofer,Peter Schaaf +14 more
TLDR
In this paper , the authors successfully exfoliated both layered and non-layered ultra-thin metal phosphorous trichalcogenides (MPCh3) nanosheets via wet grinding exfoliation (WGE), and systematically investigated the mechanism of MPCh3 as catalysts for CO2 ECR.Abstract:
Two-dimensional (2D) materials catalysts provide an atomic scale view on fascinating arena for understanding the mechanism of electrocatalytic carbon dioxide reduction (CO2 ECR). Here, we successfully exfoliated both layered and nonlayered ultra-thin metal phosphorous trichalcogenides (MPCh3) nanosheets via wet grinding exfoliation (WGE), and systematically investigated the mechanism of MPCh3 as catalysts for CO2 ECR. Unlike the layered CoPS3 and NiPS3 nanosheets, the active Sn atoms tend to be exposed on the surfaces of nonlayered SnPS3 nanosheets. Correspondingly, the nonlayered SnPS3 nanosheets exhibit clearly improved catalytic activity, showing formic acid selectivity up to 31.6% with -7.51 mA cm-2 at -0.65 V vs. RHE. The enhanced catalytic performance can be attributed to the formation of HCOO* via the first proton-electron pair addition on the SnPS3 surface. These results provide a new avenue to understand novel CO2 ECR mechanism of Sn-based and MPCh3-based catalysts.read more
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Ultra-thin CoNi0.2P nanosheets for plastics and biomass participated hybrid water electrolysis
TL;DR: In this article , a template-post phosphatization approach is adopted to achieve ultra-thin CoNi0.2P-uNS/NF nanosheets attached to nickel foam.
References
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Trends in electrochemical CO2 reduction activity for open and close-packed metal surfaces
TL;DR: It is found that high coverages of CO under typical reaction conditions for the more reactive transition metals affect the catalytic activity towards the CO2 reduction reaction, but the ordering of metal activities is not changed.
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Dae-Hyun Nam,Phil De Luna,Phil De Luna,Alonso Rosas-Hernández,Arnaud Thevenon,Fengwang Li,Theodor Agapie,Jonas C. Peters,Osama Shekhah,Mohamed Eddaoudi,Edward H. Sargent +10 more
TL;DR: This Perspective provides an overview of strategies that use molecular enhancement of heterogeneous catalysts to improve activity, efficiency and selectivity in the further development of CO2RR.
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Towards a better Sn: Efficient electrocatalytic reduction of CO2 to formate by Sn/SnS2 derived from SnS2 nanosheets
TL;DR: In this article, a two-dimensional SnS2 nanosheets supported on reduced graphene oxide (SnS2/rGO) was synthesized by a one-pot hydrothermal reaction for electrocatalytic reduction of CO2 into formate with high activity, selectivity and durability.
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Transition metal-based catalysts for the electrochemical CO2 reduction: from atoms and molecules to nanostructured materials
TL;DR: The studies herein presented show that the basic principles in molecular catalysis and organometallic chemistry can be effectively used to design new efficient and selective heterogeneous catalysts for CO2 reduction.
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Metallic NiPS3@NiOOH Core–Shell Heterostructures as Highly Efficient and Stable Electrocatalyst for the Oxygen Evolution Reaction
Bharathi Konkena,Justus Masa,Alexander Botz,Ilya Sinev,Wei Xia,Jörg Koßmann,Ralf Drautz,Martin Muhler,Wolfgang Schuhmann +8 more
TL;DR: In this paper, the authors reported metallic NiPS3@NiOOH core-shell heterostructures as an efficient and durable electrocatalyst for the oxygen evolution reaction, exhibiting a low onset potential of 1.48 V and stable performance for over 160 h.