Essays about: "gold nanoparticles"

Showing result 6 - 10 of 41 essays containing the words gold nanoparticles.

  1. 6. Quantum chemical studies of the reactivity of gold nanoparticles towards molecular radicals

    University essay from KTH/Kemi

    Author : Sofia Larsson; [2022]
    Keywords : gold nanoparticles; surface electrostatic potential; average local ionization energy; electron attachment energy; free molecular radicals; guldnanopartiklar; elektrostatisk ytpotential; genomsnittlig lokal joniseringsenergi; fria molekylära radikaler;

    Abstract : Kvantkemiska studier av reaktiviteten hos guldnanopartiklar Au3-Au11 och Au13 mot O- centrerade molekylradikaler OH , OOH , OCH3   och H2O undersöks. Olika molekylära ytegenskaper tas med i beräkningen, elektrostatiska ytpotentialen, den genomsnittliga lokala joniseringsenergin, electron attachment energy och spinndensiteten (VS(r), IS(r), TS(r), ES(r) och S(r)). READ MORE

  3. 7. Detection of Contaminants in Water Using Surface Enhanced Raman Spectroscopy

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Freja Hansson; [2021]
    Keywords : Raman; Surface-enhanced Raman Spectroscopy; nanoparticles; contaminants; plasmonics;

    Abstract : Due to deteriorating water quality and the world’s increasing demand for clean water, the need for cheap, easy and portable techniques to characterize and quantify pollutants in waters is urgent. Hence, surface-enhanced Raman spectroscopy (SERS) have gained considerable attention in this field. READ MORE

  4. 8. Modelling Local pH Values and Ion Distributions near Gold Nanoparticles

    University essay from Umeå universitet/Kemiska institutionen

    Author : Lisa Tete; [2021]
    Keywords : ;

    Abstract : Corrosion is the sum of processes by which an element, commonly a metal, wears away, deteriorates [1]–[3]. One of these processes uses the principle of electrochemistry as a basis, being the transfer of electrons between one chemical reaction and the element that undergoes corrosion [4], [5]. READ MORE

  5. 9. 3D printing of gold nanoparticles

    University essay from Uppsala universitet/Fasta tillståndets fysik

    Author : Patrick Posluk; [2020]
    Keywords : 3D printing;

    Abstract : and the placement of the material. Hence, 3D printing can be an advantageous new method of constructing supercapacitors.In this thesis, the aim was to investigate how the different parameters of Electrohydrodynamic printing (EHD printing) will affect the spread of gold nanoparticles. READ MORE

  6. 10. Method for interfacial energy determination of gold nanoparticles on solid surfaces

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Fasta tillståndets fysik

    Author : Mikaela Petersson; [2020]
    Keywords : Nanoparticles; sintering; interfacial energies; Young s equation; contact angle; Au; Si; silica; Sapphire; Al2O3; SEM; AFM; TEM; FFT; Science General;

    Abstract : The high surface-to-volume ratio of nanoparticles (NPs) makes them an interesting source for scientific research. How interfacial energies interplay between such a small structure and a solid bulk surface, are important because of the versatile applications NPs regard. READ MORE