Extraction of Two-Dimensional Aluminum Alloys from Decagonal Quasicrystals

Autor(es):Mostrar menos -

Yadav, Thakur Prasad ^{[1, 2]} ; Woellner, Cristiano F. ^[3] ; Sharifi, Tiva ^[1] ; Sinha, Shyam Kanta ^[4] ; Qu, Lu-lu ^[5] ; Apte, Amey ^[1] ; Mukhopadhyay, N. K. ^[6] ; Srivastava, O. N. ^[2] ; Vajtai, Robert ^[1] ; Galvao, Douglas Soares ^{[7, 8]} ; Tiwary, Chandra Sekhar ^{[1, 9]} ; Ajayan, Pulickel M. ^[1]

Afiliação do(s) autor(es)

^[1] Rice Univ, Dept Mat Sci & NanoEngn, Houston, TX 77005 - USA

^[2] Banaras Hindu Univ, Inst Sci, Dept Phys, Varanasi 221005, Uttar Pradesh - India

^[3] Fed Univ Parana UFPR, Phys Dept, Curitiba, Parana - Brazil

^[4] Indian Inst Sci, Dept Mat Engn, Bangalore 560012, Karnataka - India

^[5] Jiangsu Normal Univ, Sch Chem & Mat Sci, Xuzhou 221116 - Peoples R China

^[6] Banaras Hindu Univ, Dept Met Engn, Indian Inst Technol, Varanasi 221005, Uttar Pradesh - India

^[7] Univ Estadual Campinas, Appl Phys Dept, UNICAMP, Campinas, SP - Brazil

^[8] Univ Estadual Campinas, Ctr Computat Engn & Sci, UNICAMP, Campinas, SP - Brazil

^[9] Indian Inst Technol Kharagpur, Dept Met & Mat Engn, Kharagpur 721302, W Bengal - India

• Tipo de documento: Artigo Científico
• Fonte: ACS NANO; v. 14, n. 6, p. 7435-7443, JUN 23 2020.
• Citações Web of Science: 0

Resumo

Atomically thin metallic alloys are receiving increased attention due to their prospective applications as interconnects/contacts in two-dimensional (2D) circuits, sensors, and catalysts, among others. In this work, we demonstrate an easily scalable technique for the synthesis of 2D metallic alloys from their 3D quasicrystalline precursors. We have used aluminum (Al)-based single-phase decagonal quasicrystal Al66Co17Cu17 alloy to extract the corresponding 2D alloy structure. The 2D layered Al alloy possesses 2-fold decagonal quasicrystalline symmetry and consists of two- or three-layer-thick sheets with a lateral dimension of microns. These 2D metallic layers were combined with the atomic layers of tungsten disulfide to form the stacked heterostructures, which is demonstrated to be a stable and efficient catalyst for hydrogen evolution reaction. (AU)

• Processo FAPESP: 13/08293-7 - CECC - Centro de Engenharia e Ciências Computacionais
• Beneficiário: Munir Salomao Skaf
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs