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Brzęczek-Szafran A, Gwóźdź M, Gaida B, Krzywiecki M, Pawlyta M, Blacha-Grzechnik A, Kolanowska A, Chrobok A, Janas D. Bio-based protic salts as precursors for sustainable free-standing film electrodes. Sci Rep 2024; 14:11106. [PMID: 38750130 PMCID: PMC11096361 DOI: 10.1038/s41598-024-61553-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 05/07/2024] [Indexed: 05/18/2024] Open
Abstract
Transforming amines with low boiling points and high volatilities into protic salts is a versatile strategy to utilize low molecular weight compounds as precursors for N-doped carbon structures in a straightforward carbonization procedure. Herein, conventional mineral acids commonly used for the synthesis of protic salts were replaced by bio-derived phytic acid, which, combined with various amines and amino acids, yielded partially or fully bio-derived protic salts. The biomass-based salts showed higher char-forming ability than their mineral acid-based analogs (up to 55.9% at 800°), simultaneously providing carbon materials with significant porosity (up to 1177 m2g-1) and a considerable level of N,P,O-doping. Here, we present the first comprehensive study on the correlation between the structure of the bio-derived protic precursors and the properties of derived carbon materials to guide future designs of biomass-derived precursors for the one-step synthesis of sustainable carbon materials. Additionally, we demonstrate how to improve the textural properties of the protic-salt-derived carbons (which suffer from high brittleness) by simply upgrading them into highly flexible nanocomposites using high-quality single-walled carbon nanotubes. Consequently, self-standing electrodes for the oxygen reduction reaction were created.
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Affiliation(s)
| | - Magdalena Gwóźdź
- Faculty of Chemistry, Silesian University of Technology, 44-100, Gliwice, Poland
| | - Bartłomiej Gaida
- Faculty of Chemistry, Silesian University of Technology, 44-100, Gliwice, Poland
| | - Maciej Krzywiecki
- Department of Applied Physics, Institute of Physics CSE, Silesian University of Technology, 44-100, Gliwice, Poland
| | - Mirosława Pawlyta
- Materials Research Laboratory, Faculty of Mechanical Engineering, Silesian University of Technology, 44-100, Gliwice, Poland
| | | | - Anna Kolanowska
- Faculty of Chemistry, Silesian University of Technology, 44-100, Gliwice, Poland
| | - Anna Chrobok
- Faculty of Chemistry, Silesian University of Technology, 44-100, Gliwice, Poland
| | - Dawid Janas
- Faculty of Chemistry, Silesian University of Technology, 44-100, Gliwice, Poland.
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Li Y, Yang C, Ge C, Yao N, Yin J, Jiang W, Cong H, Cheng G, Luo W, Zhuang L. Electronic Modulation of Ru Nanosheet by d-d Orbital Coupling for Enhanced Hydrogen Oxidation Reaction in Alkaline Electrolytes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2202404. [PMID: 35754182 DOI: 10.1002/smll.202202404] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/02/2022] [Indexed: 06/15/2023]
Abstract
The alkaline polymer electrolyte fuel cells (APEFCs) hold great promise for using nonnoble metal-based electrocatalysts toward the cathodic oxygen reduction reaction (ORR), but are hindered by the sluggish anodic hydrogen oxidation reaction (HOR) in alkaline electrolytes. Here, a strategy is reported to promote the alkaline HOR performance of Ru by incorporating 3d-transition metals (V, Fe, Co, and Ni), where the conduction band minimum (CBM) level of Ru can be rationally tailored through strong d-d orbital coupling. As expected, the obtained RuFe nanosheet exhibits outstanding HOR performance with the mass activity of 233.46 A gPGM -1 and 23-fold higher than the Ru catalyst, even threefold higher than the commercial Pt/C. APEFC employing this RuFe as anodic catalyst gives a peak power density of 1.2 W cm-2 , outperforming the documented Pt-free anodic catalyst-based APEFCs. Experimental results and density functional theory calculations suggest the enhanced OH-binding energy and reduced formation energy of water derived from the downshifted CBM level of Ru contribute to the enhanced HOR activity.
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Affiliation(s)
- Yunbo Li
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China
| | - Chaoyi Yang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China
| | - Chuangxin Ge
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China
| | - Na Yao
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China
| | - Jinlong Yin
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China
| | - Wenyong Jiang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China
| | - Hengjiang Cong
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China
| | - Gongzhen Cheng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China
| | - Wei Luo
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China
- Suzhou Institute of Wuhan University, Suzhou, Jiangsu, 215123, P. R. China
| | - Lin Zhuang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China
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Zhan X, Tong X, Gu M, Tian J, Gao Z, Ma L, Xie Y, Chen Z, Ranganathan H, Zhang G, Sun S. Phosphorus-Doped Graphene Electrocatalysts for Oxygen Reduction Reaction. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:1141. [PMID: 35407259 PMCID: PMC9000525 DOI: 10.3390/nano12071141] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 03/25/2022] [Accepted: 03/27/2022] [Indexed: 12/12/2022]
Abstract
Developing cheap and earth-abundant electrocatalysts with high activity and stability for oxygen reduction reactions (ORRs) is highly desired for the commercial implementation of fuel cells and metal-air batteries. Tremendous efforts have been made on doped-graphene catalysts. However, the progress of phosphorus-doped graphene (P-graphene) for ORRs has rarely been summarized until now. This review focuses on the recent development of P-graphene-based materials, including the various synthesis methods, ORR performance, and ORR mechanism. The applications of single phosphorus atom-doped graphene, phosphorus, nitrogen-codoped graphene (P, N-graphene), as well as phosphorus, multi-atoms codoped graphene (P, X-graphene) as catalysts, supporting materials, and coating materials for ORR are discussed thoroughly. Additionally, the current issues and perspectives for the development of P-graphene materials are proposed.
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Affiliation(s)
- Xinxing Zhan
- School of Chemistry and Material Science, Guizhou Normal University, Guiyang 550001, China; (X.Z.); (M.G.); (J.T.); (Z.G.); (L.M.)
| | - Xin Tong
- School of Chemistry and Material Science, Guizhou Normal University, Guiyang 550001, China; (X.Z.); (M.G.); (J.T.); (Z.G.); (L.M.)
- Key Laboratory of Low-Dimensional Materials and Big data, Guizhou Minzu University, Guiyang 550025, China;
| | - Manqi Gu
- School of Chemistry and Material Science, Guizhou Normal University, Guiyang 550001, China; (X.Z.); (M.G.); (J.T.); (Z.G.); (L.M.)
| | - Juan Tian
- School of Chemistry and Material Science, Guizhou Normal University, Guiyang 550001, China; (X.Z.); (M.G.); (J.T.); (Z.G.); (L.M.)
| | - Zijian Gao
- School of Chemistry and Material Science, Guizhou Normal University, Guiyang 550001, China; (X.Z.); (M.G.); (J.T.); (Z.G.); (L.M.)
| | - Liying Ma
- School of Chemistry and Material Science, Guizhou Normal University, Guiyang 550001, China; (X.Z.); (M.G.); (J.T.); (Z.G.); (L.M.)
| | - Yadian Xie
- Key Laboratory of Low-Dimensional Materials and Big data, Guizhou Minzu University, Guiyang 550025, China;
| | - Zhangsen Chen
- Centre Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique (INRS), 1650 Boulevard Lionel-Boulet, Varennes, QC J3X 1P7, Canada; (Z.C.); (H.R.); (G.Z.)
| | - Hariprasad Ranganathan
- Centre Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique (INRS), 1650 Boulevard Lionel-Boulet, Varennes, QC J3X 1P7, Canada; (Z.C.); (H.R.); (G.Z.)
| | - Gaixia Zhang
- Centre Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique (INRS), 1650 Boulevard Lionel-Boulet, Varennes, QC J3X 1P7, Canada; (Z.C.); (H.R.); (G.Z.)
| | - Shuhui Sun
- Centre Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique (INRS), 1650 Boulevard Lionel-Boulet, Varennes, QC J3X 1P7, Canada; (Z.C.); (H.R.); (G.Z.)
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Zhang X, Xu X, Yao S, Hao C, Pan C, Xiang X, Tian ZQ, Shen PK, Shao Z, Jiang SP. Boosting Electrocatalytic Activity of Single Atom Catalysts Supported on Nitrogen-Doped Carbon through N Coordination Environment Engineering. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2105329. [PMID: 35023622 DOI: 10.1002/smll.202105329] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 12/01/2021] [Indexed: 06/14/2023]
Abstract
Nonprecious group metal (NPGM)-based single atom catalysts (SACs) hold a great potential in electrocatalysis and dopant engineering has been extensively exploited to boost their catalytic activity, while the coordination environment of dopant, which also significantly affects the electronic structure of SACs, and consequently their electrocatalytic performance, have been largely ignored. Here, by adopting a precursor modulation strategy, the authors successfully synthesize single cobalt atom catalysts embedded in nitrogen-doped carbon, Co-N/C, with similar overall Co and N concentrations but different N types, that is, pyridinic N (NP ), graphitic N (NG ), and pyrrolic N (NPY ). Co-N/C with the Co-N4 moieties coordinated with NG displays far superior activity for oxygen reduction (ORR) and evolution reactions, and superior activity and stability in both zinc-air batteries and proton exchange membrane fuel cells. Density functional theory calculation indicates that coordinated N species in particular NG functions as electron donors to the Co core of Co-N4 active sites, leading to the downshift of d-band center of Co-N4 and weakening the binding energies of the intermediates on Co-N4 sites, thus, significantly promoting catalytic kinetics and thermodynamics for ORR in a full pH range condition.
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Affiliation(s)
- Xiaoran Zhang
- Collaborative Innovation Center of Sustainable Energy Materials, School of Physical Science and Technology, Guangxi University, Guangxi Key Laboratory of Electrochemical Energy Materials, Key Laboratory of New Processing Technology for Non-ferrous Metal and Materials, Ministry of Education, Nanning, 530004, China
- WA School of Mines: Minerals, Energy & Chemical Engineering, Curtin University, Perth, Western Australia, 6102, Australia
| | - Xiaomin Xu
- WA School of Mines: Minerals, Energy & Chemical Engineering, Curtin University, Perth, Western Australia, 6102, Australia
| | - Sixian Yao
- Collaborative Innovation Center of Sustainable Energy Materials, School of Physical Science and Technology, Guangxi University, Guangxi Key Laboratory of Electrochemical Energy Materials, Key Laboratory of New Processing Technology for Non-ferrous Metal and Materials, Ministry of Education, Nanning, 530004, China
| | - Chao Hao
- Collaborative Innovation Center of Sustainable Energy Materials, School of Physical Science and Technology, Guangxi University, Guangxi Key Laboratory of Electrochemical Energy Materials, Key Laboratory of New Processing Technology for Non-ferrous Metal and Materials, Ministry of Education, Nanning, 530004, China
| | - Can Pan
- Collaborative Innovation Center of Sustainable Energy Materials, School of Physical Science and Technology, Guangxi University, Guangxi Key Laboratory of Electrochemical Energy Materials, Key Laboratory of New Processing Technology for Non-ferrous Metal and Materials, Ministry of Education, Nanning, 530004, China
| | - Xue Xiang
- Collaborative Innovation Center of Sustainable Energy Materials, School of Physical Science and Technology, Guangxi University, Guangxi Key Laboratory of Electrochemical Energy Materials, Key Laboratory of New Processing Technology for Non-ferrous Metal and Materials, Ministry of Education, Nanning, 530004, China
| | - Zhi Qun Tian
- Collaborative Innovation Center of Sustainable Energy Materials, School of Physical Science and Technology, Guangxi University, Guangxi Key Laboratory of Electrochemical Energy Materials, Key Laboratory of New Processing Technology for Non-ferrous Metal and Materials, Ministry of Education, Nanning, 530004, China
| | - Pei Kang Shen
- Collaborative Innovation Center of Sustainable Energy Materials, School of Physical Science and Technology, Guangxi University, Guangxi Key Laboratory of Electrochemical Energy Materials, Key Laboratory of New Processing Technology for Non-ferrous Metal and Materials, Ministry of Education, Nanning, 530004, China
| | - Zongping Shao
- WA School of Mines: Minerals, Energy & Chemical Engineering, Curtin University, Perth, Western Australia, 6102, Australia
| | - San Ping Jiang
- WA School of Mines: Minerals, Energy & Chemical Engineering, Curtin University, Perth, Western Australia, 6102, Australia
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Boudet A, Henrotte O, Limani N, El Orf F, Oswald F, Jousselme B, Cornut R. Unraveling the Link between Catalytic Activity and Agglomeration State with Scanning Electrochemical Microscopy and Atomic Force Microscopy. Anal Chem 2022; 94:1697-1704. [PMID: 35020356 DOI: 10.1021/acs.analchem.1c04256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In this article, we set up a methodology to investigate the relationship between the catalytic activity and the agglomeration state of platinum group metal-free ORR catalysts. To this end, we have developed a statistical approach based on scanning electrochemical microscopy (SECM) and atomic force microscopy (AFM). Two catalysts are investigated at very low loadings in order to access their intrinsic activity. Differences in terms of dispersion, stability of the inks, and adherence on the substrate are observed, highlighting the importance of measuring the exact amount and agglomeration state of the materials under study. The agglomeration state of the deposits measured by AFM explains the differences in activity measured by SECM. The performances of the catalysts are compared, and the contributions of the intrinsic activity and the agglomeration state are identified. This work paves the way toward various applications ranging from the benchmarking of new catalysts to the optimization of an ink formulation, for ORR and beyond.
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Affiliation(s)
- Alice Boudet
- Université Paris-Saclay, CEA, CNRS, NIMBE, LICSEN, 91191 Gif-sur-Yvette, France
| | - Olivier Henrotte
- Université Paris-Saclay, CEA, CNRS, NIMBE, LICSEN, 91191 Gif-sur-Yvette, France
| | - Ndrina Limani
- Université Paris-Saclay, CEA, CNRS, NIMBE, LICSEN, 91191 Gif-sur-Yvette, France
| | - Fatima El Orf
- Université Paris-Saclay, CEA, CNRS, NIMBE, LICSEN, 91191 Gif-sur-Yvette, France
| | - Frédéric Oswald
- Université Paris-Saclay, CEA, CNRS, NIMBE, LICSEN, 91191 Gif-sur-Yvette, France
| | - Bruno Jousselme
- Université Paris-Saclay, CEA, CNRS, NIMBE, LICSEN, 91191 Gif-sur-Yvette, France
| | - Renaud Cornut
- Université Paris-Saclay, CEA, CNRS, NIMBE, LICSEN, 91191 Gif-sur-Yvette, France
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