A ternary Cu2O-Cu-CuO nanocomposite: a catalyst with intriguing activity

Dalton Transactions : an International Journal of Inorganic Chemistry
Anup Kumar SasmalTarasankar Pal

Abstract

In this work, the syntheses of Cu2O as well as Cu(0) nanoparticle catalysts are presented. Copper acetate monohydrate produced two distinctly different catalyst particles with varying concentrations of hydrazine hydrate at room temperature without using any surfactant or support. Then both of them were employed separately for 4-nitrophenol reduction in aqueous solution in the presence of sodium borohydride at room temperature. To our surprise, it was noticed that the catalytic activity of Cu2O was much higher than that of the metal Cu(0) nanoparticles. We have confirmed the reason for the exceptionally high catalytic activity of cuprous oxide nanoparticles over other noble metal nanoparticles for 4-nitrophenol reduction. A plausible mechanism has been reported. The unusual activity of Cu2O nanoparticles in the reduction reaction has been observed because of the in situ generated ternary nanocomposite, Cu2O-Cu-CuO, which rapidly relays electrons and acts as a better catalyst. In this ternary composite, highly active in situ generated Cu(0) is proved to be responsible for the hydride transfer reaction. The mechanism of 4-nitrophenol reduction has been established from supporting TEM studies. To further support our proposition, we...Continue Reading

References

Sep 9, 2004·Chemical Reviews·M Fernández-GarcíaJ A Rodriguez
Sep 2, 2005·Nature·Xun WangYadong Li
Jul 29, 2008·The Journal of Organic Chemistry·Amit Saha, Brindaban Ranu
Jan 12, 2010·Chemical Communications : Chem Comm·K K R DattaM Eswaramoorthy
Feb 16, 2010·Environmental Science & Technology·Arturo A KellerZhaoxia Ji
Nov 4, 2011·Chemical Society Reviews·Pascal LignierRobert P Tooze
Jan 20, 2012·ACS Applied Materials & Interfaces·Guoxing ZhuXiaoping Shen
Jun 1, 2012·Chemical Society Reviews·Pablo HervésMatthias Ballauff
Apr 26, 2013·The Journal of Physical Chemistry. C, Nanomaterials and Interfaces·Zachary D PozunGraeme Henkelman
Jul 26, 2013·Journal of the American Chemical Society·Yiguo SuXiaojing Wang
Aug 21, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Ajit M KalekarGeeta K Sharma
Feb 19, 2014·ACS Applied Materials & Interfaces·Anatoly ZinchenkoShizuaki Murata
May 23, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Renato EisingJosiel B Domingos
May 31, 2014·ACS Applied Materials & Interfaces·Jaya PalTarasankar Pal
Jul 22, 2014·ACS Applied Materials & Interfaces·Caijin HuangXiaoqing Qiu
Apr 16, 2015·Chemical Communications : Chem Comm·Teresa AdityaTarasankar Pal
Sep 24, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Sumit SrivastavaRajeev Gupta

❮ Previous
Next ❯

Citations

Dec 21, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Atul VermaYen-Pei Fu
Nov 8, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Liguang DouHui Zhang
Jul 1, 2019·Environmental Science and Pollution Research International·Fang LiuChaocheng Zhao
Mar 26, 2021·Journal of Colloid and Interface Science·Wenlan JiaJian Liu
Dec 14, 2019·The Science of the Total Environment·Jaehyeong ParkSungjun Bae
Jul 21, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Yu LiangXiangke Wang

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.