High-yield reduction of carbon dioxide into formic acid by zero-valent metal/metal oxide redox cycles

2011 ◽  
Vol 4 (3) ◽  
pp. 881 ◽  
Author(s):  
Fangming Jin ◽  
Ying Gao ◽  
Yujia Jin ◽  
Yalei Zhang ◽  
Jianglin Cao ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Metal Oxide ◽  
Formic Acid ◽  
High Yield ◽  
Yield Reduction ◽  
Redox Cycles ◽  
Metal Metal

The development of bifunctional catalysts for carbon dioxide hydrogenation to hydrocarbons via the methanol route: from single component to integrated components

2021 ◽  
Vol 9 (9) ◽  
pp. 5197-5231
Author(s):  
Kok Bing Tan ◽  
Guowu Zhan ◽  
Daohua Sun ◽  
Jiale Huang ◽  
Qingbiao Li
Keyword(s):  
Carbon Dioxide ◽  
Metal Oxide ◽  
Single Component ◽  
Bifunctional Catalysts ◽  
Design Strategies ◽  
Metal Metal ◽  
Carbon Dioxide Hydrogenation

We review and provide subtantial knowledge on bifunctional catalysts design strategies and development on metal/metal oxide and zeolite components: independently and integrated components for CO2 hydrogenation to hydrocarbons via methanol route.

scholarly journals CO2 hydrogenation to methanol and hydrocarbons over bifunctional Zn-doped ZrO2/zeolite catalysts

2021 ◽  
Author(s):  
Pierfrancesco Ticali ◽  
Davide Salusso ◽  
Rafia Ahmad ◽  
Christian Ahoba-Sam ◽  
Adrian Ramirez ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Metal Oxide ◽  
Co2 Hydrogenation ◽  
Zeolite Catalysts ◽  
Mixed Metal ◽  
Metal Metal ◽  
Carbon Dioxide Hydrogenation ◽  
Tandem Process

The tandem process of carbon dioxide hydrogenation to methanol and its conversion to hydrocarbons over mixed metal/metal oxide-zeotype catalysts is a promising path to CO2 valorization.

scholarly journals Small Scale Hydrogen Production from Metal-Metal Oxide Redox Cycles

10.5772/50030 ◽  
2012 ◽  
Author(s):  
Doki Yamaguchi ◽  
Liangguang Tang ◽  
Nick Burke ◽  
Ken Chiang ◽  
Lucas Rye ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Metal Oxide ◽  
Small Scale ◽  
Redox Cycles ◽  
Metal Metal

Photochemical and Electrochemical Reduction of Carbon Dioxide Catalyzed by a Polyoxometalate-Organic Photosensitizer Complex

2018 ◽  
Author(s):  
Chandan Dey ◽  
Ronny Neumann
Keyword(s):  
Carbon Dioxide ◽  
Cyclic Voltammetry ◽  
Formic Acid ◽  
Electrochemical Reduction ◽  
Mass Spectroscopy ◽  
Photochemical Reactions ◽  
Reducing Agent ◽  
Covalent Attachment ◽  
Hybrid Complex ◽  
Open Face

<p>A manganese substituted Anderson type polyoxometalate, [MnMo<sub>6</sub>O<sub>24</sub>]<sup>9-</sup>, tethered with an anthracene photosensitizer was prepared and used as catalyst for CO<sub>2</sub> reduction. The polyoxometalate-photosensitizer hybrid complex, obtained by covalent attachment of the sensitizer to only one face of the planar polyoxometalate, was characterized by NMR, IR and mass spectroscopy. Cyclic voltammetry measurements show a catalytic response for the reduction of carbon dioxide, thereby suggesting catalysis at the manganese site on the open face of the polyoxometalate. Controlled potentiometric electrolysis showed the reduction of CO<sub>2</sub> to CO with a TOF of ~15 sec<sup>-1</sup>. Further photochemical reactions showed that the polyoxometalate-anthracene hybrid complex was active for the reduction of CO<sub>2</sub> to yield formic acid and/or CO in varying amounts dependent on the reducing agent used. Control experiments showed that the attachment of the photosensitizer to [MnMo<sub>6</sub>O<sub>24</sub>]<sup>9-</sup> is necessary for photocatalysis.</p><div><br></div>

scholarly journals The application prospect of metal/metal oxide nanoparticles in the treatment of osteoarthritis

2021 ◽  
Vol 394 (10) ◽  
pp. 1991-2002
Author(s):  
Junchao Luo ◽  
Yin Zhang ◽  
Senbo Zhu ◽  
Yu Tong ◽  
Lichen Ji ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Metal Oxide Nanoparticles ◽  
Biological Response ◽  
Cell Uptake ◽  
Oxide Nanoparticles ◽  
Therapeutic Effects ◽  
Superoxide Anions ◽  
Metal Metal ◽  
Cartilage Wear

AbstractThe current understanding of osteoarthritis is developing from a mechanical disease caused by cartilage wear to a complex biological response involving inflammation, oxidative stress and other aspects. Nanoparticles are widely used in drug delivery due to its good stability in vivo and cell uptake efficiency. In addition to the above advantages, metal/metal oxide NPs, such as cerium oxide and manganese dioxide, can also simulate the activity of antioxidant enzymes and catalyze the degradation of superoxide anions and hydrogen peroxide. Degrading of metal/metal oxide nanoparticles releases metal ions, which may slow down the progression of osteoarthritis by inhibiting inflammation, promoting cartilage repair and inhibiting cartilage ossification. In present review, we focused on recent research works concerning osteoarthritis treating with metal/metal oxide nanoparticles, and introduced some potential nanoparticles that may have therapeutic effects.

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