Deciphering Metal–Oxide and Metal–Metal Interplay via Surface Organometallic Chemistry: A Case Study with CO2 Hydrogenation to Methanol

2021 ◽  
Author(s):  
Scott R. Docherty ◽  
Christophe Copéret
Keyword(s):  
Metal Oxide ◽  
Organometallic Chemistry ◽  
Co2 Hydrogenation ◽  
Metal Metal ◽  
Surface Organometallic Chemistry

scholarly journals Enhanced CH3OH selectivity in CO2 hydrogenation using Cu-based catalysts generated via SOMC from GaIII single-sites

2020 ◽  
Vol 11 (29) ◽  
pp. 7593-7598 ◽  
Author(s):  
Erwin Lam ◽  
Gina Noh ◽  
Ka Wing Chan ◽  
Kim Larmier ◽  
Dmitry Lebedev ◽  
...  
Keyword(s):  
Organometallic Chemistry ◽  
Co2 Hydrogenation ◽  
Alloy Nanoparticles ◽  
Surface Organometallic Chemistry ◽  
Hydrogenation Of Co

CuGax alloy nanoparticles supported on SiO2 can be obtained by surface organometallic chemistry. This catalyst is active and selective for the hydrogenation of CO2 to CH3OH, related to the formation of an optimal interface between Cu and GaIIIOx.

New design on Li-ion battery anode of ternary complex metal/metal oxide@CNT: A case study of hierarchical NiCo-NiCo2O4@CNTs

2018 ◽  
Vol 353 ◽  
pp. 340-349 ◽  
Author(s):  
Chunyan Ding ◽  
Lijuan Wang ◽  
Weiwei Zhou ◽  
Dong Wang ◽  
Yu Du ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Ternary Complex ◽  
Li Ion Battery ◽  
Complex Metal ◽  
Metal Metal ◽  
Li Ion ◽  
Battery Anode

scholarly journals Unraveling and optimizing the metal-metal oxide synergistic effect in a highly active Co (CoO)1– catalyst for CO2 hydrogenation

2021 ◽  
Vol 53 ◽  
pp. 241-250 ◽  
Author(s):  
Kun Zhao ◽  
Marco Calizzi ◽  
Emanuele Moioli ◽  
Mo Li ◽  
Alexandre Borsay ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Metal Oxide ◽  
Co2 Hydrogenation ◽  
Highly Active ◽  
Metal Metal

The Application of Biotechnology in the Synthesis of Metal/Metal Oxides Nanoparticles

2019 ◽  
Vol 1 (1) ◽  
pp. 1-9
Author(s):  
Akinnawo O Solomon
Keyword(s):  
Metal Oxide ◽  
Metal Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Chemical Test ◽  
Ftir Characterization ◽  
Metal Metal ◽  
Biological Extracts ◽  
Chemical Instrumentation

This paper is aimed at reviewing the application of biological extracts from plants, fungi and bacteria in the synthesis of metal/metal oxide nanoparticles with reference to Ag and TiO2 nanoparticles as a case study. The procedures for the extraction of the biological extracts as well as the chemical instrumentation analysis of the extracts and metal/metal oxide nanoparticles were explained in this review. It was reported that standard chemical test confirms the presence of tannins, alkanoids, flavonoids and terpenoids in various plant extracts, while FTIR characterization of various biological extracts confirms the presence of organic compounds as a capping and reducing agents in the biosynthetic process for the preparation of the nanoparticles. The use of other instrumental techniques such as FESEM, XRD, SEM, EDX, TEM and UV-Visible spectroscopy in the characterization of biosynthesized metal/metal oxide nanoparticles were also explained in this review.

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 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.

Reusability of metals/metal oxide coupled zinc oxide nanorods in degradation of rhodamine B dye

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Anh Thi Le ◽  
Swee-Yong Pung
Keyword(s):  
Metal Oxide ◽  
Metal Ions ◽  
Rhodamine B ◽  
Zno Nanorods ◽  
Zinc Oxide Nanorods ◽  
Uv Exposure ◽  
Precipitation Method ◽  
Subsequent Stage ◽  
Content Type ◽  
Metal Metal

Purpose This paper aims to investigate the reusability of metal/metal oxide-coupled ZnO nanorods (ZnO NRs) to degrade rhodamine B (RhB). Design/methodology/approach ZnO NRs particles were synthesized by precipitation method and used to remove various types of metal ions such as Cu2+, Ag+, Mn2+, Ni2+, Pb2+, Cd2+ and Cr2+ ions under UV illumination. The metal/metal oxide-coupled ZnO NRs were characterized by scanning electron microscope, X-ray diffraction and UV-Vis diffuse reflectance. The photodegradation of RhB dye by these metal/metal oxide-coupled ZnO NRs under UV exposure was assessed. Findings The metal/metal oxide-coupled ZnO NRs were successfully reused to remove RhB dye in which more than >90% of RhB dye was degraded under UV exposure. Furthermore, the coupling of Ag, CuO, MnO2, Cd and Ni particles onto the surface of ZnO NRs even enhanced the degradation of dye. The dominant reactive species involved in the degradation of RhB dye were •OH- and •O2−-free radicals. Research limitations/implications The coupling of metal/metal oxide onto the surface of ZnO NRs after metal ions removal could affect the photocatalytic performance of ZnO NRs in the degradation of organic pollutants in subsequent stage. Practical implications A good reusability performance of metal/metal oxide-coupled ZnO NRs make ZnO NRs become a desirable photocatalyst material for the treatment of wastewater, which consists of both heavy metal ions and organic dyes. Originality/value Metal/metal oxide coupling onto the surface of ZnO NRs particles improved subsequent UV-assisted photocatalytic degradation of RhB dye.

Surface to bulk charge transfer at an alkali metal/metal oxide interface

2003 ◽  
Vol 547 (1-2) ◽  
pp. L859-L864 ◽  
Author(s):  
R Lindsay ◽  
E Michelangeli ◽  
B.G Daniels ◽  
M Polcik ◽  
A Verdini ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Alkali Metal ◽  
Metal Oxide ◽  
Oxide Interface ◽  
Metal Metal ◽  
Bulk Charge
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