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Ning X, Zhan L, Zhou X, Luo J, Wang Y. In-situ Bi-modified Pt towards glycerol and formic acid electro-oxidation: Effects of catalyst structure and surface microenvironment on activity and selectivity. J Colloid Interface Sci 2024; 655:920-930. [PMID: 37979297 DOI: 10.1016/j.jcis.2023.11.075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 11/06/2023] [Accepted: 11/11/2023] [Indexed: 11/20/2023]
Abstract
The performances of glycerol electro-oxidation reaction (GOR) and formic acid electro-oxidation reaction (FAOR) catalyzed by Pt catalyst were dramatically improved by adding Bi3+ into the reaction solution. The dynamic structure and microenvironment of in-situ Bi-modified Pt and their impact on the catalytic performances were revealed. A strong correlation was established between the Bi coverage of Pt-based catalysts and their resistance to CO poisoning and performance in GOR and FAOR. When Bi3+ increased to a certain amount, a Bi-shell containing hydroxides was formed on Pt surfaces except the formation of Pt-Bi ensemble. On Pt catalyst covered with 43.9 % Bi, the peak mass-specific activities of GOR and FAOR in forward scans were 4.2 and 34.7 times that of Pt/NCNTs, respectively. The peak electrochemical active surface area (ECSA)-specific activity of FAOR in forward scan for Pt with 52.6 % Bi coverage was 80.6 times that of Pt/NCNTs. The dehydrogenation process in FAOR and the 4-electron pathway in GOR were improved for Bi-modified Pt. The experimental results and DFT calculations indicated that the positively charged Bi and structure of Pt-Bi ensemble improved the adsorption and interaction of negatively charged intermediates, and the enhanced hydroxides facilitated the oxidation and removal of toxic intermediates, such as CO.
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Affiliation(s)
- Xiaomei Ning
- School of Chemistry and Chemical Engineering, Key Laboratory of Clean Energy Material Chemistry in Guangdong General University, Lingnan Normal University, Zhanjiang 524048, China
| | - Liang Zhan
- School of Chemistry and Chemical Engineering, Key Laboratory of Clean Energy Material Chemistry in Guangdong General University, Lingnan Normal University, Zhanjiang 524048, China.
| | - Xiaosong Zhou
- School of Chemistry and Chemical Engineering, Key Laboratory of Clean Energy Material Chemistry in Guangdong General University, Lingnan Normal University, Zhanjiang 524048, China
| | - Jin Luo
- School of Chemistry and Chemical Engineering, Key Laboratory of Clean Energy Material Chemistry in Guangdong General University, Lingnan Normal University, Zhanjiang 524048, China
| | - Yanli Wang
- School of Chemistry and Chemical Engineering, Key Laboratory of Clean Energy Material Chemistry in Guangdong General University, Lingnan Normal University, Zhanjiang 524048, China
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Vu MT, Ngan Nguyen TT, Hung TQ, Pham-Truong TN, Osial M, Decorse P, Nguyen TT, Piro B, Thu VT. Insights into Structural Behaviors of Thiolated and Aminated Reduced Graphene Oxide Supports to Understand Their Effect on MOR Efficiency. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:13897-13907. [PMID: 37738086 DOI: 10.1021/acs.langmuir.3c01446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
It is essential to develop novel catalysts with high catalytic activity, strong durability, and good stability for further application in methanol fuel cells. In this work, we present for the first time the effect of the chemical functional groups (thiol and amine) with different electron affinity in reduced graphene oxide supports on the morphology and catalytic activity of platinum nanoparticles for the methanol oxidation reaction. Hydroxyl groups on graphene oxide were initially brominated and then transformed to the desired functional groups. The good dispersion of metal nanoparticles over functionalized carbon substrates (particle size less than 5 nm) with good durability, even at a limited functionalization degree (less than 7%) has been demonstrated by morphological and structural studies. The durability of the catalysts was much improved via strong coordination between the metal and nitrogen or sulfur atoms. Impressively, the catalytic activity of platinum nanoparticles on aminated reduced graphene oxide was found to be much better than that on thiolated graphene oxide despite the weaker affinity between amine and noble metals. These findings support further developing new graphene derivatives with the desired functionalization for electronics and energy applications..
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Affiliation(s)
- Minh Thu Vu
- Vietnam Academy of Science and Technology (VAST), University of Science and Technology of Hanoi (USTH), 18 Hoang Quoc Viet, Cau Giay, Hanoi 10000, Vietnam
| | - Thi Thanh Ngan Nguyen
- Vietnam Academy of Science and Technology (VAST), University of Science and Technology of Hanoi (USTH), 18 Hoang Quoc Viet, Cau Giay, Hanoi 10000, Vietnam
| | - Tran Quang Hung
- Vietnam Academy of Science and Technology (VAST), Institute of Chemistry (IOC), 18 Hoang Quoc Viet, Cau Giay, Hanoi 10000, Vietnam
| | | | - Magdalena Osial
- Polish Academy of Sciences, Institute of Fundamental Technological Research, Pawińskiego 5B, Warsaw 02-106, Poland
| | - Philippe Decorse
- Université Paris Cité, ITODYS, CNRS, UMR 7086, 15 rue J.-A. de Baïf, Paris F-75013, France
| | - Thi Thom Nguyen
- Vietnam Academy of Science and Technology (VAST), Institute of Tropical Technology (ITT), 18 Hoang Quoc Viet, Cau Giay, Hanoi 10000, Vietnam
| | - Benoit Piro
- Université Paris Cité, ITODYS, CNRS, UMR 7086, 15 rue J.-A. de Baïf, Paris F-75013, France
| | - Vu Thi Thu
- Vietnam Academy of Science and Technology (VAST), University of Science and Technology of Hanoi (USTH), 18 Hoang Quoc Viet, Cau Giay, Hanoi 10000, Vietnam
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Hu J, Fang C, Jiang X, Zhang D, Cui Z. Ultrathin and Porous 2D PtPdCu Nanoalloys as High-Performance Multifunctional Electrocatalysts for Various Alcohol Oxidation Reactions. Inorg Chem 2022; 61:9352-9363. [PMID: 35674700 DOI: 10.1021/acs.inorgchem.2c01257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We precisely synthesized two-dimensional (2D) PtPdCu nanostructures with the morphology varying from porous circular nanodisks (CNDs) and triangular nanoplates (TNPs) to triangular nanoboomerangs (TNBs) by tuning the molar ratios of metal precursors. The PtPdCu trimetallic nanoalloys exhibit superior electrocatalytic performances to alcohol oxidation reactions due to their unique structural features and the synergistic effect. Impressively, PtPdCu TNBs exhibit a high mass activity of 3.42 mgPt+Pd-1 and 1.06 A·mgPt-1 for ethanol and methanol oxidation compared to PtPd, PtCu, and pure Pt, which is 3.93 and 4.07 times that of commercial Pt/C catalysts, respectively. Moreover, 2D PtPdCu TNPs and PtPdCu CNDs also show a highly improved electrocatalytic activity. Furthermore, as all-in-one electrocatalysts, PtPdCu nanoalloys display excellent electrocatalytic activity and stability toward the oxidation of other alcohol molecules, such as isopropyl alcohol, glycerol, and ethylene glycol. The enhanced mechanism was well proposed to be the abundant active sites and upshifted d-band center based on density functional theory calculations.
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Affiliation(s)
- Jinwu Hu
- College of Chemistry and Materials Science, the Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials, Center for Nano Science and Technology, Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, Anhui Normal University, Wuhu 241000, China
| | - Caihong Fang
- College of Chemistry and Materials Science, the Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials, Center for Nano Science and Technology, Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, Anhui Normal University, Wuhu 241000, China
| | - Xiaomin Jiang
- College of Chemistry and Materials Science, the Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials, Center for Nano Science and Technology, Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, Anhui Normal University, Wuhu 241000, China
| | - Deliang Zhang
- College of Chemistry and Materials Science, the Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials, Center for Nano Science and Technology, Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, Anhui Normal University, Wuhu 241000, China
| | - Zhiqing Cui
- College of Chemistry and Materials Science, the Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials, Center for Nano Science and Technology, Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, Anhui Normal University, Wuhu 241000, China
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Hoang NT, Thuan Nguyen PT, Chung PD, Thu Ha VT, Hung TQ, Nam PT, Thu VT. Electrochemical preparation of monodisperse Pt nanoparticles on a grafted 4-aminothiophenol supporting layer for improving the MOR reaction. RSC Adv 2022; 12:8137-8144. [PMID: 35424755 PMCID: PMC8982339 DOI: 10.1039/d2ra00040g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 03/08/2022] [Indexed: 02/01/2023] Open
Abstract
The methanol oxidation reaction (MOR) has recently gained a lot of attention due to its application in fuel cells and electrochemical sensors. To enhance the MOR, noble metal nanoparticles should be homogeneously dispersed on the electrode surface with the aid of one suitable support. In this work, 4-aminothiophenol (4-ATP) molecules which contain simultaneously amine and thiol groups were electro-grafted onto the electrode surface to provide anchoring sites, limit aggregation and ensure good dispersion of metal nanoparticles. The results showed a high density of platinum nanoparticles (PtNPs) with an average size of 25 nm on the glassy electrode modified with a 4-ATP supporting layer. Consequently, the MOR was improved by 2.1 times with the aid of the grafted 4-ATP layer. The electrochemical sensor based on PtNPs/4-ATP/GCE is able to detect MeOH in a linear range from 1.26 to 21.42 mM with a detection limit of 1.21 mM. Well-dispersed Pt nanoparticles for MOR reaction.![]()
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Affiliation(s)
- Nguyen Tien Hoang
- University of Science and Technology of Hanoi (USTH), Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam
| | | | - Pham Do Chung
- Hanoi National University of Education (HNUE 134 Xuan Thuy, Cau Giay Hanoi Vietnam
| | - Vu Thi Thu Ha
- Institute of Chemistry (IOC), Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam
| | - Tran Quang Hung
- Institute of Chemistry (IOC), Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam
| | - Pham Thi Nam
- Institute of Tropical Technology (ITT), Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam
| | - Vu Thi Thu
- University of Science and Technology of Hanoi (USTH), Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam
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Gao Z, Li Z, Zhao C, Li T, Lu Y, Song YY. Construction of Bi-Component CoNi Nanosheet coated TiO2 Nanotube Arrays for Photocatalysis-Assisted Poisoning Tolerance toward Methanol Oxidation Reaction. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.01.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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6
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Sawut N, Jamal R, Abdiryim T, Ali A, Kadir A, Helil Z, Niyaz M, Liu Y. Enhanced electrocatalytic performance of hydroxyl‑grafted PProDOT:PSS/YRFC/Pt composites for direct alcohol fuel cells. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2021.139724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Naeem R, Afzal S, Mansoor MA, Munawar K, Sherino B, Ahmed R. A composite approach to synthesize a high-performance Pt/WO 3–carbon catalyst for optical and electrocatalytic applications. NEW J CHEM 2022. [DOI: 10.1039/d2nj01497a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Optical and electrocatalytic activity of the synthesized Pt/WO3–C nanocomposite in acidic and alkaline media.
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Affiliation(s)
- Rabia Naeem
- Department of Chemistry, Government College University, Lahore, Pakistan
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Saba Afzal
- Department of Chemistry, Sardar Bahadur Khan Women's University, Quetta, Pakistan
| | - Muhammad Adil Mansoor
- Department of Chemistry, School of Natural Sciences, National University of Sciences and Technology (NUST), H-12 Campus, Islamabad, Pakistan
| | - Khadija Munawar
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Bibi Sherino
- Department of Chemistry, Sardar Bahadur Khan Women's University, Quetta, Pakistan
| | - Riaz Ahmed
- Department of Chemistry, Quaid-i-Azam University, Islamabad-45320, Pakistan
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Artal R, Serrà A, Michler J, Philippe L, Gómez E. Electrodeposition of Mesoporous Ni-Rich Ni-Pt Films for Highly Efficient Methanol Oxidation. NANOMATERIALS 2020; 10:nano10081435. [PMID: 32717944 PMCID: PMC7466700 DOI: 10.3390/nano10081435] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 07/17/2020] [Accepted: 07/20/2020] [Indexed: 02/06/2023]
Abstract
The use of soft templates for the electrosynthesis of mesoporous materials has shown tremendous potential in energy and environmental domains. Among all the approaches that have been featured in the literature, block copolymer-templated electrodeposition had robustness and a simple method, but it practically cannot be used for the synthesis of mesoporous materials not based on Pt or Au. Nonetheless, extending and understanding the possibilities and limitations of block copolymer-templated electrodeposition to other materials and substrates is still challenging. Herein, a critical analysis of the role of the solution’s primary electroactive components and the applied potential were performed in order to understand their influences on the mesostructure of Ni-rich Ni-Pt mesoporous films. Among all the components, tetrahydrofuran and a platinum (IV) complex were shown to be crucial for the formation of a truly 3D mesoporous network. The electrosynthesized well-ordered mesoporous Ni-rich Ni-Pt deposits exhibit excellent electrocatalytic performance for methanol oxidation in alkaline conditions, improved stability and durability after 1000 cycles, and minimal CO poisoning.
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Affiliation(s)
- Raül Artal
- Thin Films and Nanostructures Electrodeposition Group (GE-CPN), Department of Materials Science and Physical Chemistry, University of Barcelona, Martí i Franquès 1, E-08028 Barcelona, Spain; (R.A.); (E.G.)
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Mechanics of Materials and Nanostructures, Feuerwerkerstrasse 39, CH-3602 Thun, Switzerland; (J.M.); (L.P.)
| | - Albert Serrà
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Mechanics of Materials and Nanostructures, Feuerwerkerstrasse 39, CH-3602 Thun, Switzerland; (J.M.); (L.P.)
- Correspondence:
| | - Johann Michler
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Mechanics of Materials and Nanostructures, Feuerwerkerstrasse 39, CH-3602 Thun, Switzerland; (J.M.); (L.P.)
| | - Laëtitia Philippe
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Mechanics of Materials and Nanostructures, Feuerwerkerstrasse 39, CH-3602 Thun, Switzerland; (J.M.); (L.P.)
| | - Elvira Gómez
- Thin Films and Nanostructures Electrodeposition Group (GE-CPN), Department of Materials Science and Physical Chemistry, University of Barcelona, Martí i Franquès 1, E-08028 Barcelona, Spain; (R.A.); (E.G.)
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, E-08028 Barcelona, Spain
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