Electrochemically activated cobalt nickel sulfide for an efficient oxygen evolution reaction: partial amorphization and phase control

2019 ◽  
Vol 7 (8) ◽  
pp. 3592-3602 ◽  
Author(s):  
Yu-Rim Hong ◽  
Sungwook Mhin ◽  
Kang-Min Kim ◽  
Won-Sik Han ◽  
Heechae Choi ◽  
...  

It has recently been demonstrated that the OER activity of transition metal sulfides (TMSs) could be enhanced by the introduction of a thin amorphous layer on a pristine surface.






2019 ◽  
Vol 55 (95) ◽  
pp. 14343-14346 ◽  
Author(s):  
Tao Yang ◽  
Lisi Yin ◽  
Maoshuai He ◽  
Wenxian Wei ◽  
Guojian Cao ◽  
...  

Tremella-like MoS2 nano-sheets were directly synthesized on transition metal sulfides, displaying extreme activities towards hydrogen/oxygen evolution in alkaline condition.



2008 ◽  
Vol 73 (8-9) ◽  
pp. 945-955 ◽  
Author(s):  
Luděk Kaluža ◽  
Miroslav Zdražil

The transition metals V, Cr, Mn, Fe, Co, Ni, Mo, Ru, Rh, Pd, W, Re, Os, Ir and Pt were deposited from aqueous solutions of their salts onto conventional γ-Al2O3 and unconventional TiO2 and ZrO2 supports by vacuum impregnation and characterized in their sulfided form by a model reaction of benzothiophene hydrodesulfurization. It was found that the TiO2 and ZrO2 supports influenced predominantly positively the resulting activity of relatively low-active metals (V, Cr, Mn, Fe, Co, Ni, Mo, Ru, W and Os), whereas the highly active metals (Rh, Pd, Ir, Pt and Re) were influenced slightly negatively or not at all by those supports compared with the γ-Al2O3-supported system. A significant effect of the supports on the hydrodesulfurization-activity ranking of the transition-metal sulfides studied was ascertained.



Sign in / Sign up

Export Citation Format

Share Document