Asperical silver nanoparticles by thermal decomposition of a single-source-precursor

Adner, David; Noll, Julian; Schulze, Steffen; Hietschold, Michael; Lang, Heinrich

doi:10.1016/j.ica.2016.02.059

Cited by 13 publications

(14 citation statements)

References 33 publications

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“…3 ). The decomposition of 1 corresponds to that one recently observed for, i.e., [AgO 2 CCH 2 (OCH 2 CH 2 ) 2 OCH 3 ] and [AgO 2 CCH 2 (OCH 2 CH 2 ) 2 OCH 3 (PPh 3 )], respectively [ 6 ].…”

Section: Resultssupporting

confidence: 73%

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Synthesis of [{AgO₂CCH₂OMe(PPh₃)}_n] and theoretical study of its use in focused electron beam induced deposition

Tamulienė

Noll

Frenzel

et al. 2017

Beilstein J. Nanotechnol.

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The synthesis, chemical and physical properties of [{AgO2CCH2OMe}n] (1) and [{AgO2CCH2OMe(PPh3)}n] (2) are reported. Consecutive reaction of AgNO3 with HO2CCH2OMe gave 1, which upon treatment with PPh3 produced 2. Coordination compound 2 forms a 1D coordination polymer in the solid state as evidenced by single crystal X-ray structure analysis. The coordination geometry at Ag+ is of the [3 + 1] type, whereby the carboxylate anions act as bridging ligands. The formation of PPh3–Ag(I) coordinative bonds results in distorted T-shaped AgPO2 units, which are stabilized further by an additional O–Ag dative bond. TG and TG–MS measurements show that 1 and 2 decompose at 190–250 °C (1) and 260–300 °C (2) via decarboxylation, involving Ag–P (2), C–C and C–O bond cleavages to give elemental silver as confirmed by PXRD studies. In order to verify if polymeric 2 is suitable as a FEBID precursor for silver deposition, its vapor pressure was determined (p 170 °C = 5.318 mbar, ∆H vap = 126.1 kJ mol−1), evincing little volatility. Also EI and ESI mass spectrometric studies were carried out. The dissociation of the silver(I) compound 2 under typical electron-driven FEBID conditions was studied by DFT (B3LYP) calculations on monomeric [AgO2CCH2OMe(PPh3)]. At an energy of the secondary electrons up to 0.8 eV elimination of PPh3 occurs, giving Ag+ and O2CCH2OMe−. Likewise, by release of PPh3 from [AgO2CCH2OMe(PPh3)] the fragment [AgO2CCH2OMe]− is formed from which Ag+ and O2CCH2OMe− is generated, further following the first fragmentation route. However, at 1.3 eV the initial step is decarboxylation giving [AgCH2OMe(PPh3)], followed by Ag–P and Ag–C bond cleavages.

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“…3 ). The decomposition of 1 corresponds to that one recently observed for, i.e., [AgO 2 CCH 2 (OCH 2 CH 2 ) 2 OCH 3 ] and [AgO 2 CCH 2 (OCH 2 CH 2 ) 2 OCH 3 (PPh 3 )], respectively [ 6 ].…”

Section: Resultssupporting

confidence: 73%

“…Recently, it was shown that coordination compounds, for example, silver(I) carboxylates can successfully be applied as single-source species for silver nanoparticle formation [ 6 ] and as gas-phase precursors in the deposition of pure, dense and conformal thin silver films [ 7 – 9 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of [{AgO₂CCH₂OMe(PPh₃)}_n] and theoretical study of its use in focused electron beam induced deposition

Tamulienė

Noll

Frenzel

et al. 2017

Beilstein J. Nanotechnol.

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“…Silver nanoparticles is increasingly becoming popular and faces an annual demand of five hundred tons [2] due to its non-toxic, optical, catalytic, bio-sensing, drug delivery, antioxidant, cytotoxic and antimicrobial activities [3,4]. Literature study reports several techniques including chemical reduction [5], thermal decomposition [6,7], photochemical reduction [8], heat evaporation [9] and microwave irradiation [10] for the formation of silver nanoparticles. Most of these techniques are costly, toxic and requires chemical compounds which put harmful effect on living system, imposing an extra demand for finding alternative technique that utilizes nontoxic natural compounds for nanosilver production.…”

Section: Introductionmentioning

confidence: 99%

Biogenic synthesis of silver nanoparticles using S1 genotype of Morus alba leaf extract: characterization, antimicrobial and antioxidant potential assessment

2019

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Present study deals with synthesis and assessment of antimicrobial and antioxidant activity of silver nanoparticles using aqueous extract of mulberry leaves. The optical study showed the appearance of SPR peak in the range of 423-450 nm affirming nanosilver formation. FTIR analysis indicates the possible involvement of proteins, carbohydrate and secondary metabolites as reducing and capping agents. SEM, TEM and HR-TEM analysis reveals that the synthesized nanoparticles were spherical in shape with particle size ranges between 12 and 39 nm. EDX spectra showed maximum intensity at 3 keV, affirming silver crystal. XRD analysis showed silver nanoparticles were preferentially oriented along (111) revealing crystalline structure. DLS analysis confirms the stability of silver nanoparticles with zeta potential of + 37.4 mV. Silver nanoparticles showed effective antimicrobial activity against both gram positive and gram negative bacteria with highest activity against Salmonella typhimurium with MIC 40 µg/ml. Further silver nanoparticles also showed dose dependent antioxidant activity against free radicals like DPPH, ABTS + , superoxide and nitric oxide; besides this nanosilver also performed significant metal chelating activity.

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“…2. The control sample, NP-ACN, has a stable particle size over time with a z average of around 20 nm, with most particles having hydrodynamic diameter of approximately 90 nm 37,38 and zeta potential $À16 mV throughout the incubation. However, ACN slowly displaces the borohydride ion, probably through the nitrogen atom of the nitrile group.…”

Section: Size and Surface Charge Of Nanoparticles In The Presence Of Pesticidesmentioning

confidence: 99%

Interaction of borohydride stabilized silver nanoparticles with sulfur-containing organophosphates

et al. 2021

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Asperical silver nanoparticles by thermal decomposition of a single-source-precursor

Cited by 13 publications

References 33 publications

Synthesis of [{AgO₂CCH₂OMe(PPh₃)}_n] and theoretical study of its use in focused electron beam induced deposition

Synthesis of [{AgO₂CCH₂OMe(PPh₃)}_n] and theoretical study of its use in focused electron beam induced deposition

Biogenic synthesis of silver nanoparticles using S1 genotype of Morus alba leaf extract: characterization, antimicrobial and antioxidant potential assessment

Interaction of borohydride stabilized silver nanoparticles with sulfur-containing organophosphates

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Asperical silver nanoparticles by thermal decomposition of a single-source-precursor

Cited by 13 publications

References 33 publications

Synthesis of [{AgO2CCH2OMe(PPh3)}n] and theoretical study of its use in focused electron beam induced deposition

Synthesis of [{AgO2CCH2OMe(PPh3)}n] and theoretical study of its use in focused electron beam induced deposition

Biogenic synthesis of silver nanoparticles using S1 genotype of Morus alba leaf extract: characterization, antimicrobial and antioxidant potential assessment

Interaction of borohydride stabilized silver nanoparticles with sulfur-containing organophosphates

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Synthesis of [{AgO₂CCH₂OMe(PPh₃)}_n] and theoretical study of its use in focused electron beam induced deposition

Synthesis of [{AgO₂CCH₂OMe(PPh₃)}_n] and theoretical study of its use in focused electron beam induced deposition