S. P. Lonkar, V. V. Pillai, S. Stephen, A. Abdala, and V. Mittal, “Facile In Situ Fabrication of Nanostructured Graphene–CuO Hybrid with Hydrogen Sulfide Removal Capacity”, Nano-Micro Lett, vol. 8, no. 4, pp. 312-319, Mar. 2016.