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Ribeiro GAC, de Lima SLS, Santos KER, Mendonça JP, Macena P, Pessanha EC, Cordeiro TC, Gardener J, Solórzano G, Fonsaca JES, Domingues SH, Dos Santos CC, Dourado AHB, Tanaka AA, da Silva AGM, Garcia MAS. Zn-doped MnO x nanowires displaying plentiful crystalline defects and tunable small cross-sections for an optimized volcano-type performance towards supercapacitors. DISCOVER NANO 2023; 18:147. [PMID: 38047970 PMCID: PMC10695906 DOI: 10.1186/s11671-023-03933-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 11/28/2023] [Indexed: 12/05/2023]
Abstract
MnOx-based nanomaterials are promising large-scale electrochemical energy storage devices due to their high specific capacity, low toxicity, and low cost. However, their slow diffusion kinetics is still challenging, restricting practical applications. Here, a one-pot and straightforward method was reported to produce Zn-doped MnOx nanowires with abundant defects and tunable small cross-sections, exhibiting an outstanding specific capacitance. More specifically, based on a facile hydrothermal strategy, zinc sites could be uniformly dispersed in the α-MnOx nanowires structure as a function of composition (0.3, 2.1, 4.3, and 7.6 wt.% Zn). Such a process avoided the formation of different crystalline phases during the synthesis. The reproducible method afforded uniform nanowires, in which the size of cross-sections decreased with the increase of Zn composition. Surprisingly, we found a volcano-type relationship between the storage performance and the Zn loading. In this case, we demonstrated that the highest performance material could be achieved by incorporating 2.1 wt.% Zn, exhibiting a remarkable specific capacitance of 1082.2 F.g-1 at a charge/discharge current density of 1.0 A g-1 in a 2.0 mol L-1 KOH electrolyte. The optimized material also afforded improved results for hybrid supercapacitors. Thus, the results presented herein shed new insights into preparing defective and controlled nanomaterials by a simple one-step method for energy storage applications.
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Affiliation(s)
- Geyse A C Ribeiro
- Departamento de Química, Centro de Ciências Exatas E Tecnologia, Universidade Federal Do Maranhão (UFMA), São Luís, MA, Brazil
| | - Scarllett L S de Lima
- Departamento de Engenharia Química E de Materiais-DEQM, Pontifícia Universidade Católica Do Rio de Janeiro (PUC-Rio), Rio de Janeiro, RJ, Brazil
| | - Karolinne E R Santos
- Departamento de Química, Centro de Ciências Exatas E Tecnologia, Universidade Federal Do Maranhão (UFMA), São Luís, MA, Brazil
| | - Jhonatam P Mendonça
- Departamento de Química, Centro de Ciências Exatas E Tecnologia, Universidade Federal Do Maranhão (UFMA), São Luís, MA, Brazil
| | - Pedro Macena
- Departamento de Engenharia Química E de Materiais-DEQM, Pontifícia Universidade Católica Do Rio de Janeiro (PUC-Rio), Rio de Janeiro, RJ, Brazil
| | - Emanuel C Pessanha
- Departamento de Engenharia Química E de Materiais-DEQM, Pontifícia Universidade Católica Do Rio de Janeiro (PUC-Rio), Rio de Janeiro, RJ, Brazil
| | - Thallis C Cordeiro
- Centro de Ciências Exatas E Tecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro (UENF), Rio de Janeiro, RJ, Brazil
| | - Jules Gardener
- Center for Nanoscale Systems, School of Engineering and Applied Sciences, Harvard University, Cambridge, USA
| | - Guilhermo Solórzano
- Departamento de Engenharia Química E de Materiais-DEQM, Pontifícia Universidade Católica Do Rio de Janeiro (PUC-Rio), Rio de Janeiro, RJ, Brazil
| | - Jéssica E S Fonsaca
- Mackenzie Institute for Advanced Research in Graphene and Nanotechnologies - MackGraphe, Mackenzie Presbyterian University, São Paulo, SP, Brazil
| | - Sergio H Domingues
- Mackenzie Institute for Advanced Research in Graphene and Nanotechnologies - MackGraphe, Mackenzie Presbyterian University, São Paulo, SP, Brazil
| | | | - André H B Dourado
- São Carlos Institute of Chemistry, Universidade de São Paulo (USP), São Carlos, SP, Brazil
| | - Auro A Tanaka
- Departamento de Química, Centro de Ciências Exatas E Tecnologia, Universidade Federal Do Maranhão (UFMA), São Luís, MA, Brazil
| | - Anderson G M da Silva
- Departamento de Engenharia Química E de Materiais-DEQM, Pontifícia Universidade Católica Do Rio de Janeiro (PUC-Rio), Rio de Janeiro, RJ, Brazil.
| | - Marco A S Garcia
- Departamento de Química, Centro de Ciências Exatas E Tecnologia, Universidade Federal Do Maranhão (UFMA), São Luís, MA, Brazil.
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Ferreira R, Morawski FM, Pessanha EC, de Lima SLS, da Costa DS, Ribeiro GAC, Vaz J, Mouta R, Tanaka AA, Liu L, da Silva MIP, Tofanello A, Vitorino HA, da Silva AGM, Garcia MAS. Facile Gram-Scale Synthesis of NiO Nanoflowers for Highly Selective and Sensitive Electrocatalytic Detection of Hydrazine. ACS OMEGA 2023; 8:11978-11986. [PMID: 37033825 PMCID: PMC10077530 DOI: 10.1021/acsomega.2c07638] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 02/07/2023] [Indexed: 06/01/2023]
Abstract
The design and development of efficient and electrocatalytic sensitive nickel oxide nanomaterials have attracted attention as they are considered cost-effective, stable, and abundant electrocatalytic sensors. However, although innumerable electrocatalysts have been reported, their large-scale production with the same activity and sensitivity remains challenging. In this study, we report a simple protocol for the gram-scale synthesis of uniform NiO nanoflowers (approximately 1.75 g) via a hydrothermal method for highly selective and sensitive electrocatalytic detection of hydrazine. The resultant material was characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, and X-ray diffraction. For the production of the modified electrode, NiO nanoflowers were dispersed in Nafion and drop-cast onto the surface of a glassy carbon electrode (NiO NF/GCE). By cyclic voltammetry, it was possible to observe the excellent performance of the modified electrode toward hydrazine oxidation in alkaline media, providing an oxidation overpotential of only +0.08 V vs Ag/AgCl. In these conditions, the peak current response increased linearly with hydrazine concentration ranging from 0.99 to 98.13 μmol L-1. The electrocatalytic sensor showed a high sensitivity value of 0.10866 μA L μmol-1. The limits of detection and quantification were 0.026 and 0.0898 μmol L-1, respectively. Considering these results, NiO nanoflowers can be regarded as promising surfaces for the electrochemical determination of hydrazine, providing interesting features to explore in the electrocatalytic sensor field.
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Affiliation(s)
- Rayse
M. Ferreira
- Departamento
de Química, Centro de Ciências Exatas e Tecnologia, Universidade Federal do Maranhão (UFMA), Av. dos Portugueses, 1966 - Vila
Bacanga, 65080-805 São Luís, MA, Brazil
| | - Franciele M. Morawski
- Departamento
de Química, Universidade Federal
de Santa Catarina (UFSC), Eng. Agronômico Andrei Cristian Ferreira, s/n - Trindade, 88040-900 Florianópolis, SC, Brazil
| | - Emanuel C. Pessanha
- Departamento
de Engenharia Química e de Materiais - DEQM, Pontifícia Universidade Católica do Rio de Janeiro
(PUC-Rio), R. Marquês de São Vicente, 225 - Gávea, 22453-900 Rio de Janeiro, RJ, Brazil
| | - Scarllett L. S. de Lima
- Departamento
de Engenharia Química e de Materiais - DEQM, Pontifícia Universidade Católica do Rio de Janeiro
(PUC-Rio), R. Marquês de São Vicente, 225 - Gávea, 22453-900 Rio de Janeiro, RJ, Brazil
| | - Diana S. da Costa
- Departamento
de Química, Centro de Ciências Exatas e Tecnologia, Universidade Federal do Maranhão (UFMA), Av. dos Portugueses, 1966 - Vila
Bacanga, 65080-805 São Luís, MA, Brazil
| | - Geyse A. C. Ribeiro
- Departamento
de Química, Centro de Ciências Exatas e Tecnologia, Universidade Federal do Maranhão (UFMA), Av. dos Portugueses, 1966 - Vila
Bacanga, 65080-805 São Luís, MA, Brazil
| | - João Vaz
- Departamento
de Química, Centro de Ciências Exatas e Tecnologia, Universidade Federal do Maranhão (UFMA), Av. dos Portugueses, 1966 - Vila
Bacanga, 65080-805 São Luís, MA, Brazil
| | - Rodolpho Mouta
- Departamento
de Física, Universidade Federal do
Ceará (UFC), Av. Mister Hull, s/n − Pici, 60455-760 Fortaleza, CE, Brazil
| | - Auro A. Tanaka
- Departamento
de Química, Centro de Ciências Exatas e Tecnologia, Universidade Federal do Maranhão (UFMA), Av. dos Portugueses, 1966 - Vila
Bacanga, 65080-805 São Luís, MA, Brazil
| | - Liying Liu
- Centro
Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud, 150 - Urca, 22290-180 Rio de Janeiro, RJ, Brazil
| | - Maria I. P. da Silva
- Departamento
de Engenharia Química e de Materiais - DEQM, Pontifícia Universidade Católica do Rio de Janeiro
(PUC-Rio), R. Marquês de São Vicente, 225 - Gávea, 22453-900 Rio de Janeiro, RJ, Brazil
| | - Aryane Tofanello
- Center for
Natural and Human Sciences (CCNH), Universidade
Federal do ABC (UFABC), Av. dos Estados, 5001, - Bangú, 09210-170 Santo André, SP, Brazil
| | - Hector A. Vitorino
- Centro
de Investigación en Biodiversidad para la Salud, Universidad Privada Norbert Wiener, Jirón Larrabure y Unanue 110, Lima 15108, Perú
| | - Anderson G. M. da Silva
- Departamento
de Engenharia Química e de Materiais - DEQM, Pontifícia Universidade Católica do Rio de Janeiro
(PUC-Rio), R. Marquês de São Vicente, 225 - Gávea, 22453-900 Rio de Janeiro, RJ, Brazil
| | - Marco A. S. Garcia
- Departamento
de Química, Centro de Ciências Exatas e Tecnologia, Universidade Federal do Maranhão (UFMA), Av. dos Portugueses, 1966 - Vila
Bacanga, 65080-805 São Luís, MA, Brazil
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Ou X, Tomatis M, Payne B, Daly H, Chansai S, Fan X, D'Agostino C, Azapagic A, Hardacre C. Fracking wastewater treatment: Catalytic performance and life cycle environmental impacts of cerium-based mixed oxide catalysts for catalytic wet oxidation of organic compounds. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 860:160480. [PMID: 36435262 DOI: 10.1016/j.scitotenv.2022.160480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 10/29/2022] [Accepted: 11/21/2022] [Indexed: 06/16/2023]
Abstract
Water scarcity and the consequent increase of freshwater prices are a cause for concern in regions where shale gas is being extracted via hydraulic fracturing. Wastewater treatment methods aimed at reuse/recycle of fracking wastewater can help reduce water stress of the fracking process. Accordingly, this study assessed the catalytic performance and life cycle environmental impacts of cerium-based mixed oxide catalysts for catalytic wet oxidation (CWO) of organic contaminants, in order to investigate their potential as catalysts for fracking wastewater treatment. For these purposes, MnCeOx and CuCeOx were tested for phenol removal in the presence of concentrated NaCl (200 g L-1), which represented a synthetic fracking wastewater. Removal of phenol in pure ("phenolic") water without NaCl was also considered for comparison. Complete (100 %) phenol and a 94 % total organic carbon (TOC) removal were achieved in both the phenolic and fracking wastewaters by utilising MnCeOx (5 g L-1) and insignificant metal leaching was observed. However, a much lower activity was observed when the same amount of CuCeOx was utilised: 23.3 % and 20.5 % for phenol and TOC removals, respectively, in the phenolic, and 69.1 % and 63 % in the fracking wastewater. Furthermore, severe copper leaching from CuCeOx was observed during stability tests conducted in the fracking wastewater. A life cycle assessment (LCA) study carried out as part of this work showed that the production of MnCeOx had 12-98 % lower impacts than CuCeOx due to the higher impacts of copper than manganese precursors. Furthermore, the environmental impacts of CWO were found to be 94-99 % lower than those of ozonation due to lower energy and material requirements. Overall, the results of this study suggest that the adoption of catalytic treatment would improve both the efficiency and the environmental sustainability of both the fracking wastewater treatment and the fracking process as a whole.
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Affiliation(s)
- Xiaoxia Ou
- Department of Chemical Engineering, School of Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK; Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute, 211 Xingguang Road, Ningbo, China.
| | - Marco Tomatis
- Department of Chemical Engineering, School of Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Billy Payne
- Department of Chemical Engineering, School of Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Helen Daly
- Department of Chemical Engineering, School of Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Sarayute Chansai
- Department of Chemical Engineering, School of Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Xiaolei Fan
- Department of Chemical Engineering, School of Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Carmine D'Agostino
- Department of Chemical Engineering, School of Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK; Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali (DICAM), Alma Mater Studiorum - Università di Bologna, Via Terracini, 28, 40131 Bologna, Italy
| | - Adisa Azapagic
- Department of Chemical Engineering, School of Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK.
| | - Christopher Hardacre
- Department of Chemical Engineering, School of Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK.
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