cobalt oxide
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2022 ◽  
Vol 607 ◽  
pp. 857-868
Author(s):  
Zhuang He ◽  
Huaisheng Wang ◽  
Meng Li ◽  
Ligang Feng ◽  
Jianrui Niu ◽  
...  

2022 ◽  
Vol 13 (1) ◽  
Author(s):  
Iris C. ten Have ◽  
Josepha J. G. Kromwijk ◽  
Matteo Monai ◽  
Davide Ferri ◽  
Ellen B. Sterk ◽  
...  

AbstractTransforming carbon dioxide into valuable chemicals and fuels, is a promising tool for environmental and industrial purposes. Here, we present catalysts comprising of cobalt (oxide) nanoparticles stabilized on various support oxides for hydrocarbon production from carbon dioxide. We demonstrate that the activity and selectivity can be tuned by selection of the support oxide and cobalt oxidation state. Modulated excitation (ME) diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) reveals that cobalt oxide catalysts follows the hydrogen-assisted pathway, whereas metallic cobalt catalysts mainly follows the direct dissociation pathway. Contrary to the commonly considered metallic active phase of cobalt-based catalysts, cobalt oxide on titania support is the most active catalyst in this study and produces 11% C2+ hydrocarbons. The C2+ selectivity increases to 39% (yielding 104 mmol h−1 gcat−1 C2+ hydrocarbons) upon co-feeding CO and CO2 at a ratio of 1:2 at 250 °C and 20 bar, thus outperforming the majority of typical cobalt-based catalysts.


Author(s):  
Camden Hunt ◽  
Zishuai Zhang ◽  
Karry Ocean ◽  
Ryan P. Jansonius ◽  
Mohamad Abbas ◽  
...  

2022 ◽  
Vol 40 (1) ◽  
pp. 013405
Author(s):  
Nilton Francelosi A. Neto ◽  
Cristiane Stegemann ◽  
Lucas J. Affonço ◽  
Douglas M. G. Leite ◽  
José H. D. da Silva

2022 ◽  
Author(s):  
Shaimah Rinda Sari ◽  
Masayuki Tsushida ◽  
Tetsuya Sato ◽  
Masato Tominaga

Phosphates are well-known groundwater and surface water contaminants, with even modest increases in their concentration contributing to the eutrophication of lakes and coastal waterways and thus potentially harming the environment....


Author(s):  
Guowei Yang ◽  
Bo Yan ◽  
Yan He

Photocatalysis for water decomposition under solar light is a promising route to produce clean hydrogen energy. Although both single atom catalysts (SACs) and atomic cluster catalysts are effective ways to...


2022 ◽  
Author(s):  
Maria Escamilla ◽  
Kevin Pachuta ◽  
Kuan Huang ◽  
Michael Klingseisen ◽  
Huaixuan Cao ◽  
...  

22D particle surfactants are attractive for the formation of highly stable emulsions and use as templates to prepare composite structures with performance properties dependent on the composition. Cobalt oxide nanosheets...


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