Microbially supported synthesis of catalytically active bimetallic Pd-Au nanoparticles

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Standard

Microbially supported synthesis of catalytically active bimetallic Pd-Au nanoparticles. / Hosseinkhani, Baharak; Søbjerg, Lina Sveidal; Rotaru, Amelia-Elena; Emtiazi, Giti; Skrydstrup, Troels; Meyer, Rikke Louise.

In: Biotechnology and Bioengineering (Print), Vol. 109, No. 1, 01.2012, p. 45-52.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Harvard

Hosseinkhani, B, Søbjerg, LS, Rotaru, A-E, Emtiazi, G, Skrydstrup, T & Meyer, RL 2012, 'Microbially supported synthesis of catalytically active bimetallic Pd-Au nanoparticles', Biotechnology and Bioengineering (Print), vol. 109, no. 1, pp. 45-52. https://doi.org/10.1002/bit.23293

APA

Hosseinkhani, B., Søbjerg, L. S., Rotaru, A-E., Emtiazi, G., Skrydstrup, T., & Meyer, R. L. (2012). Microbially supported synthesis of catalytically active bimetallic Pd-Au nanoparticles. Biotechnology and Bioengineering (Print), 109(1), 45-52. https://doi.org/10.1002/bit.23293

CBE

Hosseinkhani B, Søbjerg LS, Rotaru A-E, Emtiazi G, Skrydstrup T, Meyer RL. 2012. Microbially supported synthesis of catalytically active bimetallic Pd-Au nanoparticles. Biotechnology and Bioengineering (Print). 109(1):45-52. https://doi.org/10.1002/bit.23293

MLA

Hosseinkhani, Baharak et al. "Microbially supported synthesis of catalytically active bimetallic Pd-Au nanoparticles". Biotechnology and Bioengineering (Print). 2012, 109(1). 45-52. https://doi.org/10.1002/bit.23293

Vancouver

Hosseinkhani B, Søbjerg LS, Rotaru A-E, Emtiazi G, Skrydstrup T, Meyer RL. Microbially supported synthesis of catalytically active bimetallic Pd-Au nanoparticles. Biotechnology and Bioengineering (Print). 2012 Jan;109(1):45-52. https://doi.org/10.1002/bit.23293

Author

Hosseinkhani, Baharak ; Søbjerg, Lina Sveidal ; Rotaru, Amelia-Elena ; Emtiazi, Giti ; Skrydstrup, Troels ; Meyer, Rikke Louise. / Microbially supported synthesis of catalytically active bimetallic Pd-Au nanoparticles. In: Biotechnology and Bioengineering (Print). 2012 ; Vol. 109, No. 1. pp. 45-52.

Bibtex

@article{753ad612969943929940467f6ea3cc88,
title = "Microbially supported synthesis of catalytically active bimetallic Pd-Au nanoparticles",
abstract = "Bimetallic nanoparticles are considered the next generation of nanocatalysts with increased stability and catalytic activity. Bio-supported synthesis of monometallic nanoparticles has been proposed as an environmentally friendly alternative to the conventional chemical and physical protocols. In this study we synthesize bimetallic bio-supported Pd-Au nanoparticles for the first time using microorganisms as support material. The synthesis involved two steps: (1) Formation of monometallic bio-supported Pd(0) and Au(0) nanoparticles on the surface of Cupriavidus necator cells, and (2) formation of bimetallic bio-supported nanoparticles by reduction of either Au(III) or Pd(II) on to the nanoparticles prepared in step one. Bio-supported monometallic Pd(0) or Au(0) nanoparticles were formed on the surface of C. necator by reduction of Pd(II) or Au(III) with formate. Addition of Au(III) or Pd(II) to the bio-supported particles resulted in increased particle size. UV-Vis spectrophotometry and HR-TEM analyses indicated that the previously monometallic nanoparticles had become fully or partially covered by Au(0) or Pd(0), respectively. Furthermore, Energy Dispersive Spectrometry (EDS) and Fast Fourier Transformation (FFT) analyses confirmed that the nanoparticles indeed were bimetallic. The bimetallic nanoparticles did not have a core-shell structure, but were superior to monometallic particles at reducing p-nitrophenol to p-aminophenol. Hence, formation of microbially supported nanoparticles may be a cheap and environmentally friendly approach for production of bimetallic nanocatalysts.",
author = "Baharak Hosseinkhani and S{\o}bjerg, {Lina Sveidal} and Amelia-Elena Rotaru and Giti Emtiazi and Troels Skrydstrup and Meyer, {Rikke Louise}",
year = "2012",
month = jan,
doi = "10.1002/bit.23293",
language = "English",
volume = "109",
pages = "45--52",
journal = "Biotechnology and Bioengineering (Print)",
issn = "0006-3592",
publisher = "JohnWiley & Sons, Inc.",
number = "1",

}

RIS

TY - JOUR

T1 - Microbially supported synthesis of catalytically active bimetallic Pd-Au nanoparticles

AU - Hosseinkhani, Baharak

AU - Søbjerg, Lina Sveidal

AU - Rotaru, Amelia-Elena

AU - Emtiazi, Giti

AU - Skrydstrup, Troels

AU - Meyer, Rikke Louise

PY - 2012/1

Y1 - 2012/1

N2 - Bimetallic nanoparticles are considered the next generation of nanocatalysts with increased stability and catalytic activity. Bio-supported synthesis of monometallic nanoparticles has been proposed as an environmentally friendly alternative to the conventional chemical and physical protocols. In this study we synthesize bimetallic bio-supported Pd-Au nanoparticles for the first time using microorganisms as support material. The synthesis involved two steps: (1) Formation of monometallic bio-supported Pd(0) and Au(0) nanoparticles on the surface of Cupriavidus necator cells, and (2) formation of bimetallic bio-supported nanoparticles by reduction of either Au(III) or Pd(II) on to the nanoparticles prepared in step one. Bio-supported monometallic Pd(0) or Au(0) nanoparticles were formed on the surface of C. necator by reduction of Pd(II) or Au(III) with formate. Addition of Au(III) or Pd(II) to the bio-supported particles resulted in increased particle size. UV-Vis spectrophotometry and HR-TEM analyses indicated that the previously monometallic nanoparticles had become fully or partially covered by Au(0) or Pd(0), respectively. Furthermore, Energy Dispersive Spectrometry (EDS) and Fast Fourier Transformation (FFT) analyses confirmed that the nanoparticles indeed were bimetallic. The bimetallic nanoparticles did not have a core-shell structure, but were superior to monometallic particles at reducing p-nitrophenol to p-aminophenol. Hence, formation of microbially supported nanoparticles may be a cheap and environmentally friendly approach for production of bimetallic nanocatalysts.

AB - Bimetallic nanoparticles are considered the next generation of nanocatalysts with increased stability and catalytic activity. Bio-supported synthesis of monometallic nanoparticles has been proposed as an environmentally friendly alternative to the conventional chemical and physical protocols. In this study we synthesize bimetallic bio-supported Pd-Au nanoparticles for the first time using microorganisms as support material. The synthesis involved two steps: (1) Formation of monometallic bio-supported Pd(0) and Au(0) nanoparticles on the surface of Cupriavidus necator cells, and (2) formation of bimetallic bio-supported nanoparticles by reduction of either Au(III) or Pd(II) on to the nanoparticles prepared in step one. Bio-supported monometallic Pd(0) or Au(0) nanoparticles were formed on the surface of C. necator by reduction of Pd(II) or Au(III) with formate. Addition of Au(III) or Pd(II) to the bio-supported particles resulted in increased particle size. UV-Vis spectrophotometry and HR-TEM analyses indicated that the previously monometallic nanoparticles had become fully or partially covered by Au(0) or Pd(0), respectively. Furthermore, Energy Dispersive Spectrometry (EDS) and Fast Fourier Transformation (FFT) analyses confirmed that the nanoparticles indeed were bimetallic. The bimetallic nanoparticles did not have a core-shell structure, but were superior to monometallic particles at reducing p-nitrophenol to p-aminophenol. Hence, formation of microbially supported nanoparticles may be a cheap and environmentally friendly approach for production of bimetallic nanocatalysts.

U2 - 10.1002/bit.23293

DO - 10.1002/bit.23293

M3 - Journal article

VL - 109

SP - 45

EP - 52

JO - Biotechnology and Bioengineering (Print)

JF - Biotechnology and Bioengineering (Print)

SN - 0006-3592

IS - 1

ER -