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| Home > Publications database > Microfluidic Synthesis of Ultrasmall AuPd Nanoparticles with a Homogeneously Mixed Alloy Structure in Fast Continuous Flow for Catalytic Applications > print |
| 001 | 398556 | ||
| 005 | 20250730104619.0 | ||
| 024 | 7 | _ | |a 10.1021/acs.jpcc.7b11383 |2 doi |
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| 024 | 7 | _ | |a 1932-7455 |2 ISSN |
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| 100 | 1 | _ | |a Tofighi, Ghazal |0 P:(DE-H253)PIP1024283 |b 0 |
| 245 | _ | _ | |a Microfluidic Synthesis of Ultrasmall AuPd Nanoparticles with a Homogeneously Mixed Alloy Structure in Fast Continuous Flow for Catalytic Applications |
| 260 | _ | _ | |a Washington, DC |c 2017 |b ACS Publ. |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a Ultrasmall Au, Pd and AuPd nanoparticles (NPs) stabilized by PVP were prepared in a microfluidic reactor with cyclone micromixers for rapid mixing of reactants. In this system, pulsation-free flow of reactants was achieved at a total flow rate of 2.6 L h-1. A rapid homogeneous mixing within 2 ms was obtained with three cyclone micromixers. Controlled NP nucleation and growth occur in a following meandering microchannel. The resulting colloidal NPs were characterized thoroughly by various complementary techniques e.g. high resolution transmission electron microscopy (HRTEM), energy-dispersive X-ray spectroscopy (EDX) and Ultraviolet-visible spectroscopy. The average NP diameter was about 1 nm with a narrow size distribution and electron microscopy showed homogeneously alloyed NPs. Moreover, the particles were supported on TiO2. for catalytic tests and further structural characterization. Electron microscopy showed a uniform distribution of NPs on the support with some aggregation. X-ray absorption spectroscopy (XAS) confirmed the formation of well-mixed AuPd alloys in NP cores with Pd-rich surfaces. Finally, 1 wt.% metal loaded supports showed catalytic activities in CO oxidation in the following order: Au/TiO2. ≥ AuxPdy/TiO2. ≥ Pd/TiO2. Hence, the physical and chemical properties of these catalysts can be fine-tuned. |
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| 700 | 1 | _ | |a Gaur, Abhijeet |b 1 |
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| 700 | 1 | _ | |a Lichtenberg, Henning |0 P:(DE-H253)PIP1016146 |b 3 |
| 700 | 1 | _ | |a Wang, Wu |b 4 |
| 700 | 1 | _ | |a Wang, Di |b 5 |
| 700 | 1 | _ | |a Rinke, Guenter |b 6 |
| 700 | 1 | _ | |a Ewinger, Angela |b 7 |
| 700 | 1 | _ | |a Dittmeyer, Roland |b 8 |
| 700 | 1 | _ | |a Grunwaldt, Jan-Dierk |0 P:(DE-H253)PIP1008522 |b 9 |e Corresponding author |
| 773 | _ | _ | |a 10.1021/acs.jpcc.7b11383 |g p. acs.jpcc.7b11383 |0 PERI:(DE-600)2256522-X |p - |t The @journal of physical chemistry |v - |y 2017 |x 1932-7455 |
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