Phase formation and stability of Ag–60 at%Cu alloy nanoparticles synthesized by chemical routes in aqueous media
Literature Information
Chandan Srivastava, Kamanio Chattopadhyay
The present work reports the nature of the evolution of an array of nanoparticles during the synthesis of alloy nanoparticles of Ag–60 at%Cu by the co-reduction of metal salt precursors using NaBH4 in an aqueous medium. This was achieved by studying samples extracted at different intervals of time from the reaction bath. The microstructural characterization reveals that at the initial stage of synthesis, a single-phase solid solution of alloy nanoparticles of very small sizes was formed; however, as the reaction time increases, a network of chains of nanoparticles evolves containing particles rich in either Ag or Cu. Keeping the particles in the reaction bath for a longer time, the chemistry of the network changes further with the chain containing an Ag-rich core and Cu2O as the shell. In the present study, we tried to rationalize the evolution of the phases from the observed results.
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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.









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