Steric Hindrance in Sulfur Vacancy of Monolayer MoS2 Boosts Electrochemical Reduction of Carbon Monoxide to Methane

ChemSusChem ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 1455-1459 ◽  
Author(s):  
Zhi Wen Chen ◽  
Wang Gao ◽  
Wei Tao Zheng ◽  
Qing Jiang
Keyword(s):  
Carbon Monoxide ◽  
Electrochemical Reduction ◽  
Steric Hindrance ◽  
Monolayer Mos2 ◽  
Sulfur Vacancy

Mass transport induced structural evolution and healing of sulfur vacancy lines and Mo chain in monolayer MoS2

Rare Metals ◽  
2021 ◽  
Author(s):  
Xiao-Wei Wang ◽  
Lin-Fang Hou ◽  
Wei Huang ◽  
Xi-Biao Ren ◽  
Wei Ji ◽  
...  
Keyword(s):  
Mass Transport ◽  
Structural Evolution ◽  
Monolayer Mos2 ◽  
Sulfur Vacancy

An Anomalous Formation Pathway for Dislocation-Sulfur Vacancy Complexes in Polycrystalline Monolayer MoS2

Nano Letters ◽  
2015 ◽  
Vol 15 (10) ◽  
pp. 6855-6861 ◽  
Author(s):  
Zhi Gen Yu ◽  
Yong-Wei Zhang ◽  
Boris I. Yakobson
Keyword(s):  
Monolayer Mos2 ◽  
Sulfur Vacancy ◽  
Formation Pathway ◽  
Anomalous Formation

Clam-shaped cyclam-functionalized porphyrin for electrochemical reduction of carbon dioxide

2019 ◽  
Vol 23 (04n05) ◽  
pp. 453-461
Author(s):  
Sumana Tawil ◽  
Hathaichanok Seelajaroen ◽  
Amorn Petsom ◽  
Niyazi Serdar Sariciftci ◽  
Patchanita Thamyongkit
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Cyclic Voltammetry ◽  
Catalytic Activity ◽  
Electrochemical Reduction ◽  
Target Compound ◽  
Faradaic Efficiency ◽  
Controlled Potential Electrolysis ◽  
Improved Stability ◽  
Controlled Potential

A clam-shaped molecule comprising a Zn(II)-porphyrin and a Zn(II)-cyclam is synthesized and characterized. Its electrochemical behavior and catalytic activity for homogeneous electrochemical reduction of carbon dioxide (CO[Formula: see text] are investigated by cyclic voltammetry and compared with those of Zn(II)-meso-tetraphenylporphyrin and Zn(II)-cyclam. Under N2-saturated conditions, cyclic voltammetry of the featured complex has characteristics of its two constituents, but under CO2-saturated conditions, the target compound exhibits significant current enhancement. Iterative reduction under electrochemical conditions indicated the target compound has improved stability relative to Zn(II)-cyclam. Controlled potential electrolysis demonstrates that, without addition of water, methane (CH[Formula: see text] is the only detectable product with 1% Faradaic efficiency (FE). The formation of CH4 is not observed under the catalysis of the Zn(II)-porphyrin benchmark compound, indicating that the CO2-capturing function of the Zn(II)-cyclam unit contributes to the catalysis. Upon addition of 3% v/v water, the electrochemical reduction of CO2 in the presence of the target compound gives carbon monoxide (CO) with 28% FE. Dominance of CO formation under these conditions suggests enhancement of proton-coupled reduction. Integrated action of these Zn(II)-porphyrin and Zn(II)-cyclam units offers a notable example of a molecular catalytic system where the cyclam ring captures and brings CO2 into the proximity of the porphyrin catalysis center.

Electrochemical Reduction of Carbon Dioxide to Carbon Monoxide Using CVD N-Doped Graphene on Copper Foam As Carbo-/Electro-Catalyst

2020 ◽  
Vol MA2020-01 (5) ◽  
pp. 615-615
Author(s):  
Krisara Srimanon ◽  
Atiweena Krittayavathananon ◽  
Sangchai Sarawutanukul ◽  
Montree Sawangphruk
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Electrochemical Reduction ◽  
Copper Foam ◽  
Doped Graphene

scholarly journals Poly(4-styrenesulfonate)-induced sulfur vacancy self-healing strategy for monolayer MoS2 homojunction photodiode

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
Xiankun Zhang ◽  
Qingliang Liao ◽  
Shuo Liu ◽  
Zhuo Kang ◽  
Zheng Zhang ◽  
...  
Keyword(s):  
Self Healing ◽  
Monolayer Mos2 ◽  
Sulfur Vacancy
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