cobalt complex
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2022 ◽  
Author(s):  
Sven Johannsen ◽  
Sacha Ossinger ◽  
Jan Grunwald ◽  
Alexander Herman ◽  
Heiko Wende ◽  
...  

Author(s):  
Sven Johannsen ◽  
Sacha Ossinger ◽  
Jan Grunwald ◽  
Alexander Herman ◽  
Heiko Wende ◽  
...  

2022 ◽  
Author(s):  
Takuya Akai ◽  
Mio Kondo ◽  
Yutaka Saga ◽  
Shigeyuki Masaoka

The first catalytic cycle for hydrogen production based on the photochemical two-electron reduction of carbon dioxide (CO2) and the dehydrogenation of formic acid at ambient temperature was demonstrated using a...


2021 ◽  
Author(s):  
Antoine Bohn ◽  
Juan José Moreno ◽  
Pierre Thuéry ◽  
Marc Robert ◽  
Orestes Rivada Wheelaghan

A pyrazole–based ligand substituted with terpyridine groups at the 3 and 5positions has been synthesized to form the dinuclear cobalt complex 1, that electrocatalytically reduces carbon dioxide (CO2) to carbon monoxide (CO) in the presence of Brønsted acids in DMF. Chemical, electrochemical and UV–vis spectro–electrochemical studies under inert atmosphere indicate a single 2 electron reduction process of complex 1 at first, followed by a 1 electron reduction at the ligand. Infrared spectro–electrochemical studies under CO2 and CO atmosphere allowed us to identify a reduced CO–containing dicobalt complex which results from the electroreduction of CO2. In the presence of trifluoroethanol (TFE), electrocatalytic studies revealed single–site mechanism with up to 94 % selectivity towards CO formation when 1.47 M TFE were present, at –1.35 V vs Saturated Calomel Electrode in DMF (0.39 V overpotential). The low faradaic efficiencies obtained (<50%) are attributed to the generation of CO–containing species formed during the electrocatalytic process, which inhibit the reduction of CO2.


2021 ◽  
Vol 29 (12) ◽  
pp. 855-863
Author(s):  
Yeong Hyun Seo ◽  
Yong Bin Hyun ◽  
Hyun Ju Lee ◽  
Hong Cheol Lee ◽  
Jung Hyun Lee ◽  
...  

Author(s):  
Mariem Tahenti ◽  
Noureddine Issaoui ◽  
Thierry Roisnel ◽  
Houda Marouani ◽  
Omar Al-Dossary ◽  
...  

2021 ◽  
Vol 50 (11) ◽  
pp. 1933-1937
Author(s):  
S. O. Shapovalova ◽  
A. A. Guda ◽  
M. P. Bubnov ◽  
G. Smolentsev ◽  
Yu. V. Rusalev ◽  
...  
Keyword(s):  

ACS Catalysis ◽  
2021 ◽  
pp. 13696-13705
Author(s):  
Ke Chen ◽  
Hongdan Zhu ◽  
Yuling Li ◽  
Qian Peng ◽  
Yinlong Guo ◽  
...  
Keyword(s):  

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