<i>Averrhoa carambola</i>: A Renewable Source of Oxalic Acid for the Facile and Green Synthesis of Divalent Metal (Fe, Co, Ni, Zn, and Cu) Oxalates and Oxide Nanoparticles

<table>XRD spectra for the complexes (a1–e) and of their decomposition products (a2–d2).</table>

Journal of Applied Chemistry

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Figure 5

Figure 5: <i>Averrhoa carambola</i>: A Renewable Source of Oxalic Acid for the Facile and Green Synthesis of Divalent Metal (Fe, Co, Ni, Zn, and Cu) Oxalates and Oxide Nanoparticles 

Figure 5 | Averrhoa carambola: A Renewable Source of Oxalic Acid for the Facile and Green Synthesis of Divalent Metal (Fe, Co, Ni, Zn, and Cu) Oxalates and Oxide Nanoparticles 