Preparation of Fine Ceramics by Soft Chemistry

V‐Integration Modulates t2g‐Electrons of a Single Crystal Ir1‐x(Ir0.8V0.2O2)x‐BHC for Boosted and Durable OER in Acidic Electrolyte

“…due to pyrolysis of organic precursors, leads the growth of highly porous carbonconstructed nanoarchitecture of Ir 1-x (Ir 0.8 V 0.2 O 2 ) x -BHC, [20] and keeping a uniform distribution of ultrasmall NPs. [19] The field emission scanning electron microscope (FESEM) image (Figure 2a) demonstrates 3D uniform arrangement of open windows with ultrathin side walls, indicating high porous nanoarchitecture of Ir 1-x (Ir 0.8 V 0.2 O 2 ) x -BHC. FESEMenergy-dispersive X-ray spectroscopy (FESEM-EDS) analysis of Ir 1-x (Ir 0.8 V 0.2 O 2 ) x -BHC (Figure S1, Supporting Information) shows homogeneous dispersion of all constituent element, where the atomic ratio of Ir:V is ≈1:0.35.…”

“…Typically, aqueous solutions of all precursors including metal precursors (NaVO 3 and IrCl 3 .xH 2 O) and chelating agents (oxalic acid, trisodium citrate dihydrate and ethylenediaminetetraacetic acid disodium salt) were mixed together at room temperature to obtain a dark brown transparent solution before the evaporation and subsequent pyrolysis step (see Methods for details). In this method, chelating agents perform a key role in prohibiting the precipitation of metal ions from solution during pyrolysis by maintaining the homogeneity of the solution, serving as template for the formation of BHC during pyrolysis, [ 19 ] where the slow release of water contents and other gases (CO 2 , CO etc.) due to pyrolysis of organic precursors, leads the growth of highly porous carbon‐constructed nanoarchitecture of Ir 1‐ x (Ir 0.8 V 0.2 O 2 ) x ‐BHC, [ 20 ] and keeping a uniform distribution of ultrasmall NPs.…”

“…due to pyrolysis of organic precursors, leads the growth of highly porous carbon‐constructed nanoarchitecture of Ir 1‐ x (Ir 0.8 V 0.2 O 2 ) x ‐BHC, [ 20 ] and keeping a uniform distribution of ultrasmall NPs. [ 19 ]…”

Fabrication and characterization of rubidium ferrites by the solution‐based combustion method using diverse organic fuels

“…To overcome these challenges, the solution‐based combustion approach, known as chemie‐douce routes, presents an alternative route for ferrite synthesis. This innovative method circumvents the milling of starting materials, achieving immediate conversion from the precursor solution's molecular mixture to the final ferrite product without having any intermediate phase 34,35 . During combustion, exothermic redox reactions between metal nitrates and fuels such as urea, ethylene glycol (EG), or oxalyl dihydrazide (ODH) lead to the evolution of gases (N 2 , H 2 O, and CO 2 ), promoting desegregation of the products, increasing porosity, and facilitating heat dissipation to inhibit sintering 36,37 .…”