Jiajie Lin, Jingchuang Zhao, Huiyan Fang, Changhui Tan and Yancai Li 2023. Retraction: [Simple, Green and Low-Cost Ni Nanoparticles/Tissue-Derived Nitrogen-Doped Porous Carbon Nanocomposites as an Efficient Electrocatalyst for Methanol Oxidation Reaction]. Sustainable Chemical Engineering. 4, 2 (Jul. 2023), 70–89. DOI:https://doi.org/10.37256/sce.4220233054.