3 years ago

Growth Mechanism of Pine-leaf-like Nanostructure from the Backbone of SrCO3 Nanorods using LaMer’s Surface Diffusion: Impact of Higher Surface Energy (γ = 38.9 eV/nm2) {111} Plane Stacking Along ⟨110⟩ (γ = 3.4 eV/nm2) by First-Principles Calculations

Growth Mechanism of Pine-leaf-like Nanostructure from the Backbone of SrCO3 Nanorods using LaMer’s Surface Diffusion: Impact of Higher Surface Energy (γ = 38.9 eV/nm2) {111} Plane Stacking Along ⟨110⟩ (γ = 3.4 eV/nm2) by First-Principles Calculations
Umapathy Subramanian, Gunadhor Singh Okram, Milton Franklin Benial Amirtham, Mukul Gupta, Mathavan Thangapandian, Murugan Palanichamy, Jeshua Linu Joshua Mathavan, Michael Angelo Jothirajan, Archana Jayaram, Divya Arumugam, Selvaraj Selva Chandrasekaran
We demonstrate experimentally here the influence of surface diffusion, pH, reaction time, and stress−strain on the growth mechanism of the pine-leaf-like SrCO3 nanostructure (PSNS) from the backbone of SrCO3 nanorods (SNRs). In order to investigate growth orientation of SNRs and PSNS, indispensable surface energy of various crystallographic planes were calculated using the Vienna ab initio simulation package. Several microscopy and spectroscopic techniques were engaged to monitor surfactantless PSNS growth and structural parameters. To obtain deeper insight into this, orientation attachment-assisted single SNR was investigated systematically by LaMer’s surface diffusion mechanism. Analyzing further critically the transmission electron microscopy (TEM) and high resolution TEM (HRTEM) images, occurrence of the critical dimensional model of single SNR, i.e., length increases as diameter decreases, was explored comprehensively according to the Gibbs−Thomson effect.

Publisher URL: http://dx.doi.org/10.1021/acs.cgd.7b01066

DOI: 10.1021/acs.cgd.7b01066

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