Copper sulfide nanostripe patterns at the Au(111)/electrolyte interface studied by in situ STM

2007 ◽  
Vol 9 (17) ◽  
pp. 2142 ◽  
Author(s):  
Daniel Friebel ◽  
Christian Schlaup ◽  
Peter Broekmann ◽  
Klaus Wandelt
Keyword(s):  
Copper Sulfide ◽  
Electrolyte Interface ◽  
In Situ Stm

Sulfidation of a Cu submonolayer at the Au(111)/electrolyte interface – An in situ STM study

2006 ◽  
Vol 600 (13) ◽  
pp. 2800-2809 ◽  
Author(s):  
Daniel Friebel ◽  
Christian Schlaup ◽  
Peter Broekmann ◽  
Klaus Wandelt
Keyword(s):  
Electrolyte Interface ◽  
In Situ Stm

scholarly journals Converting copper sulfide to copper with surface sulfur for electrocatalytic alkyne semi-hydrogenation with water

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yongmeng Wu ◽  
Cuibo Liu ◽  
Changhong Wang ◽  
Yifu Yu ◽  
Yanmei Shi ◽  
...  
Keyword(s):  
Binding Energy ◽  
Noble Metal ◽  
Atomic Hydrogen ◽  
Copper Sulfide ◽  
Low Cost ◽  
Water Electrolysis ◽  
Metal Free ◽  
Copper Nanowire

AbstractElectrocatalytic alkyne semi-hydrogenation to alkenes with water as the hydrogen source using a low-cost noble-metal-free catalyst is highly desirable but challenging because of their over-hydrogenation to undesired alkanes. Here, we propose that an ideal catalyst should have the appropriate binding energy with active atomic hydrogen (H*) from water electrolysis and a weaker adsorption with an alkene, thus promoting alkyne semi-hydrogenation and avoiding over-hydrogenation. So, surface sulfur-doped and -adsorbed low-coordinated copper nanowire sponges are designedly synthesized via in situ electroreduction of copper sulfide and enable electrocatalytic alkyne semi-hydrogenation with over 99% selectivity using water as the hydrogen source, outperforming a copper counterpart without surface sulfur. Sulfur anion-hydrated cation (S2−-K+(H2O)n) networks between the surface adsorbed S2− and K+ in the KOH electrolyte boost the production of active H* from water electrolysis. And the trace doping of sulfur weakens the alkene adsorption, avoiding over-hydrogenation. Our catalyst also shows wide substrate scopes, up to 99% alkenes selectivity, good reducible groups compatibility, and easily synthesized deuterated alkenes, highlighting the promising potential of this method.

In situ STM imaging of spontaneously deposited ruthenium on Au()

2002 ◽  
Vol 517 (1-3) ◽  
pp. 207-218 ◽  
Author(s):  
S Strbac ◽  
R.J Behm ◽  
A Crown ◽  
A Wieckowski
Keyword(s):  
In Situ Stm

Continuous variation of iodine adlattices on Ag(111) electrodes: in situ STM and ex situ LEED studies

1996 ◽  
Vol 369 (1-3) ◽  
pp. 321-335 ◽  
Author(s):  
Taro Yamada ◽  
Katsuhiko Ogaki ◽  
Shinya Okubo ◽  
Kingo Itaya
Keyword(s):  
Continuous Variation ◽  
Ex Situ ◽  
In Situ Stm
Sign in / Sign up

Export Citation Format

Share Document