Characterization of silver and silver/nickel composite particles prepared by spray pyrolysis

Yang, Song-Yi; Kim, Sun-Geon

doi:10.1016/j.powtec.2004.07.010

Cited by 53 publications

(34 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…• C for silver, because similar sintering states were found at the temperatures by the bulk pyrolyses of the corresponding nitrate solutions (Yang and Kim 2004). The atomic% metal and reactor set temperature were varied to see their effects on the morphology of the metal-impregnated mesoporous silica.…”

Section: Methodsmentioning

confidence: 79%

See 1 more Smart Citation

Nickel-Impregnated Mesoporous Silica Prepared in an Aerosol Reactor

Ahn¹,

Hyun²,

Kim³

2012

Aerosol Science and Technology

Self Cite

View full text Add to dashboard Cite

Nickel-impregnated mesoporous silica was prepared from a solution of TEOS, metal nitrate and Pluronic P123 in a short flight (<30s) through an aerosol reactor by changing the reactor temperature and metal concentration (at% Ni to Si). The dispersion of the metal and morphology of the composite mesospheres were observed with TEM, SAXS, and XRD. The maximum in the d spacing was observed at 400• C with the nickel concentration in mesospheres fixed at 10 at%. On the contrary, the minimum appeared at 10 at% Ni at the reactor temperature fixed at 600• C. Nickel mostly remained either inside mesopores or silica wall (1) in the range of reactor temperatures between 150 and 1000• C with 10 at% and (2) in the range of metal concentrations up to 100 at% at 600• C. Post calcination provided nickel more freedom to penetrate silica wall as the mesophase was spray pyrolyzed at lower temperature. Most findings could be explained by a new model proposed based on metal-promoting formation of silica wall.

show abstract

Section: Methodsmentioning

confidence: 79%

“…An aerosol reactor to produce the mesophases consisted of ultrasonic atomizer, horizontal tubular reactor made of quartz heated by an electrical furnace, filter, and acid gas absorber, as shown elsewhere (Yang and Kim 2004;Kim and Kim 2004 final solution, well mixed at 30…”

Section: Methodsmentioning

confidence: 99%

Nickel-Impregnated Mesoporous Silica Prepared in an Aerosol Reactor

Ahn¹,

Hyun²,

Kim³

2012

Aerosol Science and Technology

Self Cite

View full text Add to dashboard Cite

show abstract

“…In addition to solid particles with nanosizes or submicron-sizes, [4][5][6]9,10 ne Ag particles with mesoporous 7,8 or alloyed structure [11][12][13] can also be synthesized using this method. Ag based composite particles with glasses or oxides have been applied in antibiotics and surface enhanced Raman scattering.…”

Section: 3mentioning

confidence: 99%

High-power current and fatigue sustainable circuits prepared using low-temperature spray pyrolyzed submicron silver particles

et al. 2017

View full text Add to dashboard Cite

Silver acetate instead of silver nitrate was used as the precursor to synthesize submicron-sized Ag particles (Ag SMPs) using a thermal-spray pyrolysis method at relatively low processing temperatures. Pastes comprised of Ag particles were produced and sintered at 100 C or 250 C to form conductive circuits for different-level microelectronics. The produced circuits were designed for application as interconnections in consumer and automotive devices. The critical current necessary to fuse the circuit was measured to evaluate the interconnect reliability under high-power electrical current stress. The experimental results show that a critical calcination temperature exists between 350 to 400 C for full silver acetate conversion into Ag powders. The amount of residual precursor, morphology, constituent and size of the Ag particles, as well as the electrical conductance of the sintered structures are all influencing factors. When subjected to heating at 100 C for 10 min, the sintered conductive Ag SMP lines can withstand current stress density exceeding 1 mA mm À2 under 12 V, indicating superior electrical reliability. The low-temperature sintered SMP deposits also demonstrated excellent bending fatigue resistance.

show abstract

“…Silver and nickel particles have been widely used to form conducting pastes for integrated circuits and other electronic devices. [1,2] The quality of the pastes mostly depends on the properties of the metal particles such as monodispersity, sphericity, dispersion without agglomeration, purity and crystallinity. [1] Ultrafine pure silver powder will find great applications in many vital industries especially in the field of sterilization and antimicrobial agents.…”

Section: Introductionmentioning

confidence: 99%

“…[1,2] The quality of the pastes mostly depends on the properties of the metal particles such as monodispersity, sphericity, dispersion without agglomeration, purity and crystallinity. [1] Ultrafine pure silver powder will find great applications in many vital industries especially in the field of sterilization and antimicrobial agents. If the size is reduced to the nanosize, it is expected to have amazing properties as a catalyst or in many other fields.…”

Section: Introductionmentioning

confidence: 99%

Silver nanostructures via cementation on copper: a comparison between experimental data and statistical design model

Ahmed

Fouad

El‐Midany

et al. 2010

Surface & Interface Analysis

View full text Add to dashboard Cite

aSilver nanostructures have been precipitated successfully from acidic solutions of silver ions via cementation on copper sheets. The experimental parameters that have been studied are time, temperature of reaction, pH and initial silver ion concentration. XRD analysis showed that precipitated silver particles werecomposed mainly of metallic silver. No other phases such as silver oxide, sulfide or sulfate could be detected. SEM investigations confirmed that silver nanostructures were deposited mainly in the form of nanoparticles, dendrites or nanorods as the parameters varied. The average silver nanoparticle size that could be obtained by optimizing the experimental conditions of cementation process was about 60 nm. This value was in agreement with that obtained from application of factorial design under the same conditions.

show abstract

Characterization of silver and silver/nickel composite particles prepared by spray pyrolysis

Cited by 53 publications

References 3 publications

Nickel-Impregnated Mesoporous Silica Prepared in an Aerosol Reactor

Nickel-Impregnated Mesoporous Silica Prepared in an Aerosol Reactor

High-power current and fatigue sustainable circuits prepared using low-temperature spray pyrolyzed submicron silver particles

Silver nanostructures via cementation on copper: a comparison between experimental data and statistical design model

Contact Info

Product

Resources

About