Nickel supported on polymeric graphitic carbon nitride for electrocatalytic in reduction of carbon dioxide oleh Walker Vinícius Ferreira do Carmo Batista, Jessica Fernanda Coelho, Wanessa Lima de Oliveira, Nivaldo Gomes Pereira Filho, Eduarda Ferreira de Oliveira, Taís dos Santos da Cruz, Hidila Souza Teixeira da Silva, Gleison Neres Marques, João P. de Mesquita, Rodrigo F.B. de Souza, Almir O. Neto