Facile synthesis of copper nanoparticles in glycerol at room temperature: formation mechanism

Abstract

A copper sol is usually synthesized by the reduction of a copper precursor with a suitable reducing agent in the presence of a stabilizer.

Preparation of Bifunctional CuWO4‐Based Heterostructure Nanocomposites for Noble‐Metal‐Free Photocatalysts

“…In Figure A(b), the peaks observed at 35.4, 37.6 and 41.3 eV due to the binding energies of W( 4f 7/2 ), W( 4f 5/2 ) and W( 5p 3/2 ) respectively, of W 6+ state . In Figure A(c), the main peak is shown at 530.5 eV for O ( 1 s ) and it can be deconvoluted into two peaks with broad at 530.3 and tail at 530.95 eV are assigned to the Cu−O of CuO and W−O of respectively ,. By comparing the results with earlier reports,,, the present study does not show any OH − related signals in particles due to the OH − groups of PEG compensated the loss of oxygen during annealing.…”

“…In Figure A(d), the peaks are shown centered at 934.2 eV and 953.9 eV due to Cu ( 2p 3/2 ) and Cu ( 2p 1/2 ) respectively, of CuWO 4. The shakeup satellite peaks are observed at 942.9 and 944.8 eV for Cu ( 2p 3/2 ) and at 963.3 eV for Cu ( 2p 1/2 ). These results confirmed that the phase pure synthesized at pH 5.3.…”

Novel in situ synthesis of copper nanoparticles supported on reduced graphene oxide and its application as a new catalyst for the decomposition of composite solid propellants

“…2a shows the CuCl 2 spectrum with a peak at 230 nm (Cu-Cu interaction) and a broad peak at 810 nm, assigned to the Cu-H 2 O interaction. 53 The CuNP curve at pH 1 (resulting from the synthesis) shows shoulder type peaks at 200, 242 and 300 nm. Additionally, a close up to the 300-600 nm region, exhibits a third peak at 390 nm, caused by the change in the surface plasmon resonance of CuNP and indicates the formation of copper nanoparticles.…”

Key Non‐Metal Ingredients for Cu‐catalyzed “Click” Reactions in Glycerol: Nanoparticles as Efficient Forwarders

“…[20] In contrast, long-alkyl-chain aminesf avor the stabilization of metal (and metal oxide) nanoparticles. [21] Presuming the formation of copper-basedn anoclusters under our reaction conditions, [22] TEM analyses of CuI in glycerol and in the presence of differenta mines were carried out ( Table S2 in the Supporting Information). Actually,t he formation of well-dispersed nanoparticles was observed in the presence of long-alkyl-chain amines,i ncluding ammonium derivatives (Figure 2).…”