Publications de Chethana Janardhana Gadiyar

Synthetic Tunability of Colloidal Covalent Organic Framework/Nanocrystal Hybrids

Raffaella Buonsanti, Seyedehbehnaz Varandili, Jan Vávra, Chethana Janardhana Gadiyar, Vikram Vinayak Karve, Ona Segura Lecina, Yannick Thomas Guntern

The combination of porous reticular frameworks and nanocrystals (NCs) offers a rich playground to design materials with functionalities, which are beneficial for a large variety of applications. Achieving compositional and structural tunability of these hy ...

2021

Synthesis of metal oxide photoanodes for water splitting using nanocrystals as precursors

Chethana Janardhana Gadiyar

Photoelectrochemical (PEC) water splitting devices are envisioned to play a key role in the societal transition towards sustainable energy sources. In this context, multinary metal oxide semiconductors are the most promising candidates for the role of phot ...

EPFL2020

Nanocrystals as Precursors in Solid-State Reactions for Size- and Shape-Controlled Polyelemental Nanomaterials

Raffaella Buonsanti, Emad Oveisi, Anna Loiudice, Dragos-Constantin Stoian, Valeria Mantella, Chethana Janardhana Gadiyar, Pranit Srinivas Iyengar, Laia Castilla Amorós

Solid-state reactions between micrometer-size powders are among the oldest, simplest, and still widely used methods for the fabrication of inorganic solids. These reactions are intrinsically slow because, although the precursorsare "well mixed" at the macr ...

AMER CHEMICAL SOC2020

Polymer Lamellae as Reaction Intermediates in the Formation of Copper Nanospheres as Evidenced by In Situ X-ray Studies

Raffaella Buonsanti, Dragos-Constantin Stoian, Valeria Mantella, James Richard Pankhurst, Chethana Janardhana Gadiyar, Michal Stanislaw Strach, Kilian Frank

The classical nucleation theory (CNT) is the most common theoretical framework used to explain particle formation. However, nucleation is a complex process with reaction pathways which are often not covered by the CNT. Herein, we study the formation mechan ...

Wiley-VCH Verlag GmbH2020

Synthesis of Cu/CeO2-x Nanocrystalline Heterodimers with Interfacial Active Sites To Promote CO2 Electroreduction

Raffaella Buonsanti, Emad Oveisi, Mounir Driss Mensi, Seyedehbehnaz Varandili, Jan Vávra, Chethana Janardhana Gadiyar, Michal Stanislaw Strach, Jianfeng Huang, Gian Luca De Gregorio

Synergistic effects at metal/metal oxide interfaces often give rise to highly active and selective catalytic motifs. So far, such interactions have been rarely explored to enhance the selectivity in the electrochemical CO2 reduction reaction (CO2RR). Herei ...

2019

Chemical transformations at the nanoscale: nanocrystal-seeded synthesis of beta-Cu2V2O7 with enhanced photoconversion efficiencies

Raffaella Buonsanti, Anna Loiudice, Pascal Alexander Schouwink, Chethana Janardhana Gadiyar, Michal Stanislaw Strach

2018

Assembly of -Cu2V2O7/WO3 heterostructured nanocomposites and the impact of their composition on structure and photoelectrochemical properties

Raffaella Buonsanti, Anna Loiudice, Mariateresa Scarongella, Chethana Janardhana Gadiyar, Michal Stanislaw Strach, Luca Rimoldi

Multinary metal oxides and their heterostructures play a key role as light absorbers in the production of solar chemicals. Synthetic tunability is crucial to understand the impact of composition and structure on the photoelectrochemical performance. Here, ...

Royal Society of Chemistry2018

Colloidal nanocrystals for photoelectrochemical and photocatalytic water splitting

Raffaella Buonsanti, Anna Loiudice, Chethana Janardhana Gadiyar

Colloidal nanocrystals (NCs) are among the most modular and versatile nanomaterial platforms for studying emerging phenomena in different fields thanks to their superb compositional and morphological tunability. A promising, yet challenging, application in ...

2017