One-Step Synthesis of Nickel Sulfides and Their Electrocatalytic Activities for Hydrogen Evolution Reaction: A Case Study of Crystalline h-NiS and o-Ni9S8 Nanoparticles

Autor(es)

da Silva, Mitchell G. S. ^[1] ; Leite, Celisnolia M. ^[2] ; Cordeiro, Marco A. L. ^[3] ; Mastelaro, Valmor R. ^[4] ; Leite, Edson R. ^{[5, 1]}

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, Chem Dept, CDMF, LIEC, BR-13565905 Sao Carlos, SP - Brazil

^[2] Univ Fed Sao Carlos, Chem Dept, BR-13565905 Sao Carlos, SP - Brazil

^[3] Univ Fed Sao Carlos, Mat Engn Dept, BR-13565905 Sao Carlos, SP - Brazil

^[4] Univ Sao Paulo, Sao Carlos Inst Phys, BR-13566590 Sao Carlos, SP - Brazil

^[5] CNPEM, Brazilian Nanotechnol Natl Lab LNNano, BR-13083970 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ACS APPLIED ENERGY MATERIALS; v. 3, n. 10, p. 9498-9503, OCT 26 2020.
• Citações Web of Science: 0

Resumo

Electrocatalytic materials play a crucial role in the development of technologies for hydrogen production (hydrogen evolution reaction) from renewable and sustainable energy resources. Among these materials, nickel sulfides are promising catalysts due to their activity, stability, and cost-effectiveness. However, while the performance of nickel sulfides is linearly correlated to the crystalline structure, synthesis of single crystalline phases of nickel sulfides with controlled morphology is not trivial. In the face of this challenge, we report a simple and selective method to synthesize different phases and morphologies of nickel sulfide with superior electrocatalytic activities, by combining microwave energy and a solvothermal method. (AU)

• Processo FAPESP: 13/07296-2 - CDMF - Centro de Desenvolvimento de Materiais Funcionais
• Beneficiário: Elson Longo da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs