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Zhang C, Zhang Z, Niu J, Li Z, Wang F. Preparation of Sub-5 nm Pt Nanotetrahedra Without Surfactant and Their Electrocatalytic Properties. Catal Letters 2023. [DOI: 10.1007/s10562-023-04284-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Liu H, Zhao J, Li X. Controlled Synthesis of Carbon-Supported Pt-Based Electrocatalysts for Proton Exchange Membrane Fuel Cells. ELECTROCHEM ENERGY R 2022; 5. [PMID: 36212026 PMCID: PMC9536324 DOI: 10.1007/s41918-022-00173-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 05/18/2021] [Accepted: 10/15/2021] [Indexed: 10/26/2022]
Abstract
AbstractProton exchange membrane fuel cells are playing an increasing role in postpandemic economic recovery and climate action plans. However, their performance, cost, and durability are significantly related to Pt-based electrocatalysts, hampering their large-scale commercial application. Hence, considerable efforts have been devoted to improving the activity and durability of Pt-based electrocatalysts by controlled synthesis in recent years as an effective method for decreasing Pt use, and consequently, the cost. Therefore, this review article focuses on the synthesis processes of carbon-supported Pt-based electrocatalysts, which significantly affect the nanoparticle size, shape, and dispersion on supports and thus the activity and durability of the prepared electrocatalysts. The reviewed processes include (i) the functionalization of a commercial carbon support for enhanced catalyst–support interaction and additional catalytic effects, (ii) the methods for loading Pt-based electrocatalysts onto a carbon support that impact the manufacturing costs of electrocatalysts, (iii) the preparation of spherical and nonspherical Pt-based electrocatalysts (polyhedrons, nanocages, nanoframes, one- and two-dimensional nanostructures), and (iv) the postsynthesis treatments of supported electrocatalysts. The influences of the supports, key experimental parameters, and postsynthesis treatments on Pt-based electrocatalysts are scrutinized in detail. Future research directions are outlined, including (i) the full exploitation of the potential functionalization of commercial carbon supports, (ii) scaled-up one-pot synthesis of carbon-supported Pt-based electrocatalysts, and (iii) simplification of postsynthesis treatments. One-pot synthesis in aqueous instead of organic reaction systems and the minimal use of organic ligands are preferred to simplify the synthesis and postsynthesis treatment processes and to promote the mass production of commercial carbon-supported Pt-based electrocatalysts.
Graphical Abstract
This review focuses on the synthesis process of Pt-based electrocatalysts/C to develop aqueous one-pot synthesis at large-scale production for PEMFC stack application.
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3
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Sahoo L, Mondal S, Nayana CB, Gautam UK. Facile d-band tailoring in Sub-10 nm Pd cubes by in-situ grafting on nitrogen-doped graphene for highly efficient organic transformations. J Colloid Interface Sci 2021; 590:175-185. [PMID: 33548601 DOI: 10.1016/j.jcis.2020.12.118] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/28/2020] [Accepted: 12/29/2020] [Indexed: 02/07/2023]
Abstract
We demonstrate for the first time the in-situ synthesis of Pd nanocubes (PdNC) on nitrogen-doped reduced graphene oxide (NRGO) for facile organic transformations wherein the cubic morphology of Pd can only be realized by precision-controlled acid additions in the tune of 0.02 pH variations in the reaction medium. Due to the intimate contact arising from atom-by-atom addition of Pd on NRGO, the composite has exhibited a pronounced catalyst to support charge transfer effect, shift in the d-band center, and lowering of charge-transfer resistance when compared with PdNC-NRGO ex-situ composites prepared by mixing of the preformed components of PdNC and NRGO or PdNCs alone. The activities of these catalysts were tested for the Suzuki coupling and nitroarene reduction reactions using water as an industry-friendly solvent. In both, the in-situ deposited sample exhibited substantially higher catalytic activity as well as stability when compared with an ex-situ sample or pure PdNCs. We show that a very high turnover frequency of ~31300 h-1 and ~900 h-1 are achievable by using the in-situ deposited PdNC-NRGO composite for Suzuki coupling reactions and nitroarene reduction respectively, better than the state-of-the-art catalysts developed recently, in addition to high recyclability.
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Affiliation(s)
- Lipipuspa Sahoo
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali, Sector 81, Mohali, SAS Nagar, Punjab 140306, India
| | - Sanjit Mondal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali, Sector 81, Mohali, SAS Nagar, Punjab 140306, India
| | - C B Nayana
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali, Sector 81, Mohali, SAS Nagar, Punjab 140306, India
| | - Ujjal K Gautam
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali, Sector 81, Mohali, SAS Nagar, Punjab 140306, India.
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Sahoo L, Dhindsa PK, P NC, Gautam UK. 'Pre-optimization' of the solvent of nanoparticle synthesis for superior catalytic efficiency: a case study with Pd nanocrystals. Nanoscale Adv 2021; 3:2366-2376. [PMID: 36133759 PMCID: PMC9417607 DOI: 10.1039/d0na01006e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 02/15/2021] [Indexed: 06/16/2023]
Abstract
In view of a limited rationale available for designing metal nanocrystals (NCs) to achieve high catalytic activities across various chemical transformations, we offer a new perspective on the optimization of the 'solvent-of-nanocrystal-synthesis' that, to an extent, would help bypass the tedious characterization needs. A systematic improvement in a catalyst is hindered because (i) it relies on size & shape control protocols, surface characterization, understanding molecular transformation mechanisms, and the energetics of the reactant-catalyst interactions, requiring the involvement of different domains experts, and (ii) the insights developed using model reactions may not easily extend to other reactions, although the current studies count on such a hypothesis. In support of (ii), by taking Pd NCs as catalysts and two distinct reaction types, viz. Suzuki coupling and nitroarene reduction, we show to what great extent the reaction rates may vary even for the seemingly similar reactions by using the same NCs. More importantly, for challenge (i), we demonstrate how the addition of a single-step to the current protocol of 'catalyst-synthesis and activity test' can potentially lead to the development of highly active catalysts by first finding a suitable solvent for the NC synthesis, while such solvent-effects are barely considered unlike the same in organic transformation reactions as a matter of routine, for example.
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Affiliation(s)
- Lipipuspa Sahoo
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali Sector 81 SAS Nagar Mohali Punjab 140306 India
| | - Parmeet Kaur Dhindsa
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali Sector 81 SAS Nagar Mohali Punjab 140306 India
| | - Nihal C P
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali Sector 81 SAS Nagar Mohali Punjab 140306 India
| | - Ujjal K Gautam
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali Sector 81 SAS Nagar Mohali Punjab 140306 India
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Rana M, Mondal S, Sahoo L, Chatterjee K, Karthik PE, Gautam UK. Emerging Materials in Heterogeneous Electrocatalysis Involving Oxygen for Energy Harvesting. ACS Appl Mater Interfaces 2018; 10:33737-33767. [PMID: 30222309 DOI: 10.1021/acsami.8b09024] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Water-based renewable energy cycle involved in water splitting, fuel cells, and metal-air batteries has been gaining increasing attention for sustainable generation and storage of energy. The major challenges in these technologies arise due to the poor kinetics of the oxygen reduction reaction (ORR) and the oxygen evolution reactions (OER), besides the high cost of the catalysts. Attempts to address these issues have led to the development of many novel and inexpensive catalysts as well as newer mechanistic insights, particularly so in the last three-four years when more catalysts have been investigated than ever before. With the growing emphasis on bifunctionality, that is, materials that can facilitate both reduction and evolution of oxygen, this review is intended to discuss all major families of ORR, OER, and bifunctional catalysts such as metals, alloys, oxides, other chalcogenides, pnictides, and metal-free materials developed during this period in a single platform, while also directing the readers to specific and detailed review articles dealing with each family. In addition, each section highlights the latest theoretical and experimental insights that may further improve ORR/OER performances. The bifunctional catalysts being sufficiently new, no consensus appears to have emerged about the efficiencies. Therefore, a statistical analysis of their performances by considering nearly all literature reports that have appeared in this period is presented. The current challenges in rational design of these catalysts as well as probable strategies to improve their performances are presented.
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Affiliation(s)
- Moumita Rana
- IMDEA Materials Institute , C/Eric Kandel 2, Parque de Tecnogetafe , Getafe 28906 , Spain
| | - Sanjit Mondal
- Department of Chemical Sciences , Indian Institute of Science Education and Research-Mohali , Sector 81 , Mohali, SAS Nagar , Punjab 140306 , India
| | - Lipipuspa Sahoo
- Department of Chemical Sciences , Indian Institute of Science Education and Research-Mohali , Sector 81 , Mohali, SAS Nagar , Punjab 140306 , India
| | - Kaustav Chatterjee
- Department of Chemical Sciences , Indian Institute of Science Education and Research-Mohali , Sector 81 , Mohali, SAS Nagar , Punjab 140306 , India
| | - Pitchiah E Karthik
- Department of Chemical Sciences , Indian Institute of Science Education and Research-Mohali , Sector 81 , Mohali, SAS Nagar , Punjab 140306 , India
| | - Ujjal K Gautam
- Department of Chemical Sciences , Indian Institute of Science Education and Research-Mohali , Sector 81 , Mohali, SAS Nagar , Punjab 140306 , India
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Huang K, Hou J, Zhang Q, Ou G, Ning D, Hussain N, Xu Y, Ge B, Liu K, Wu H. Ultrathin two-dimensional metals with fully exposed (111) facets. Chem Commun (Camb) 2018; 54:160-163. [DOI: 10.1039/c7cc07923k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Large-size ultrathin two-dimensional (2D) metals with a fully exposed (111) surface have been synthesized by a heat-pressing process.
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Singh SK, Kashyap V, Manna N, Bhange SN, Soni R, Boukherroub R, Szunerits S, Kurungot S. Efficient and Durable Oxygen Reduction Electrocatalyst Based on CoMn Alloy Oxide Nanoparticles Supported Over N-Doped Porous Graphene. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01983] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Santosh K. Singh
- Physical
and Materials Chemistry Division, National Chemical Laboratory (CSIR), Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
- Academy of Scientific and Innovative Research, Anusandhan Bhawan, 2 Rafi Marg, New Delhi 110 001, India
| | - Varchaswal Kashyap
- Physical
and Materials Chemistry Division, National Chemical Laboratory (CSIR), Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
- Academy of Scientific and Innovative Research, Anusandhan Bhawan, 2 Rafi Marg, New Delhi 110 001, India
| | - Narugopal Manna
- Physical
and Materials Chemistry Division, National Chemical Laboratory (CSIR), Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
- Academy of Scientific and Innovative Research, Anusandhan Bhawan, 2 Rafi Marg, New Delhi 110 001, India
| | - Siddheshwar N. Bhange
- Physical
and Materials Chemistry Division, National Chemical Laboratory (CSIR), Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
- Academy of Scientific and Innovative Research, Anusandhan Bhawan, 2 Rafi Marg, New Delhi 110 001, India
| | - Roby Soni
- Physical
and Materials Chemistry Division, National Chemical Laboratory (CSIR), Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
- Academy of Scientific and Innovative Research, Anusandhan Bhawan, 2 Rafi Marg, New Delhi 110 001, India
| | - Rabah Boukherroub
- Univ. Lille, CNRS, Centrale Lille, ISEN, Univ. Valenciennes, UMR 8520 - IEMN, F-59000 Lille, France
| | - Sabine Szunerits
- Univ. Lille, CNRS, Centrale Lille, ISEN, Univ. Valenciennes, UMR 8520 - IEMN, F-59000 Lille, France
| | - Sreekumar Kurungot
- Physical
and Materials Chemistry Division, National Chemical Laboratory (CSIR), Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
- Academy of Scientific and Innovative Research, Anusandhan Bhawan, 2 Rafi Marg, New Delhi 110 001, India
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Shen Y, Zhou Y, Gong B, Xiao K, Wang L, Xi J. One-pot synthesis of ultrafine decahedral platinum crystal decorated graphite nanosheets for the electro-oxidation of formic acid. J Catal 2017. [DOI: 10.1016/j.jcat.2016.11.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Zhang K, Dong H, Dai W, Meng X, Lu H, Wu T, Zhang X. Fabricating Pt/Sn–In2O3 Nanoflower with Advanced Oxygen Reduction Reaction Performance for High-Sensitivity MicroRNA Electrochemical Detection. Anal Chem 2016; 89:648-655. [DOI: 10.1021/acs.analchem.6b02858] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Kai Zhang
- Research Center for Bioengineering and Sensing Technology, Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Bioengineering, University of Science & Technology Beijing, Beijing 100083, P.R. China
| | - Haifeng Dong
- Research Center for Bioengineering and Sensing Technology, Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Bioengineering, University of Science & Technology Beijing, Beijing 100083, P.R. China
| | - Wenhao Dai
- Research Center for Bioengineering and Sensing Technology, Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Bioengineering, University of Science & Technology Beijing, Beijing 100083, P.R. China
| | - Xiangdan Meng
- Research Center for Bioengineering and Sensing Technology, Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Bioengineering, University of Science & Technology Beijing, Beijing 100083, P.R. China
| | - Huiting Lu
- Department of Environmental Science and Engineering, School of Chemistry and Environment, Beijing University of Aeronautics & Astronautics, Beijing 100083, P.R. China
| | - Tingting Wu
- Research Center for Bioengineering and Sensing Technology, Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Bioengineering, University of Science & Technology Beijing, Beijing 100083, P.R. China
| | - Xueji Zhang
- Research Center for Bioengineering and Sensing Technology, Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Bioengineering, University of Science & Technology Beijing, Beijing 100083, P.R. China
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Hong JW, Kim Y, Kwon Y, Han SW. Noble-Metal Nanocrystals with Controlled Facets for Electrocatalysis. Chem Asian J 2016; 11:2224-39. [PMID: 27258679 DOI: 10.1002/asia.201600462] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Revised: 05/27/2016] [Indexed: 11/06/2022]
Abstract
Noble-metal nanocrystals (NCs) show excellent catalytic performance for many important electrocatalysis reactions. The crystallographic properties of the facets by which the NCs are bound, closely associated with the shape of the NCs, have a profound influence on the electrocatalytic function of the NCs. To develop an efficient strategy for the synthesis of NCs with controlled facets as well as compositions, understanding of the growth mechanism of the NCs and their interaction with the chemical species involved in NC synthesis is quite important. Furthermore, understanding the facet-dependent catalytic properties of noble-metal NCs and the corresponding mechanisms for various electrocatalysis reactions will allow for the rational design of robust electrocatalysts. In this review, we summarize recently developed synthesis strategies for the preparation of mono- and bimetallic noble-metal NCs by classifying them by the type of facets through which they are enclosed and discuss the electrocatalytic applications of noble-metal NCs with controlled facets, especially for reactions associated with fuel-cell applications, such as the oxygen reduction reaction and fuel (methanol, ethanol, and formic acid) oxidation reactions.
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Affiliation(s)
- Jong Wook Hong
- Center for Nanotectonics, Department of Chemistry and KI for the NanoCentury, KAIST, Daejeon, 34141, Korea.,Department of Chemistry, University of Ulsan, Ulsan, 44610, Korea
| | - Yena Kim
- Center for Nanotectonics, Department of Chemistry and KI for the NanoCentury, KAIST, Daejeon, 34141, Korea
| | - Yongmin Kwon
- Center for Nanotectonics, Department of Chemistry and KI for the NanoCentury, KAIST, Daejeon, 34141, Korea
| | - Sang Woo Han
- Center for Nanotectonics, Department of Chemistry and KI for the NanoCentury, KAIST, Daejeon, 34141, Korea.
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Rana M, Patil PK, Chhetri M, Dileep K, Datta R, Gautam UK. Pd–Pt alloys nanowires as support-less electrocatalyst with high synergistic enhancement in efficiency for methanol oxidation in acidic medium. J Colloid Interface Sci 2016; 463:99-106. [DOI: 10.1016/j.jcis.2015.10.042] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Revised: 10/14/2015] [Accepted: 10/16/2015] [Indexed: 10/22/2022]
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Abstract
A novel process is developed to prepare highly efficient single site Pt(111) hexagonal nanocrystals on a carbon support for the asymmetric hydrogenation of α-ketoesters.
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Affiliation(s)
- Poonam Sharma
- Department of Chemistry
- Indian Institute of Technology Jodhpur
- India
| | - Rakesh K. Sharma
- Department of Chemistry
- Indian Institute of Technology Jodhpur
- India
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13
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Zhao Y, Li X, Schechter JM, Yang Y. Revisiting the oxidation peak in the cathodic scan of the cyclic voltammogram of alcohol oxidation on noble metal electrodes. RSC Adv 2016. [DOI: 10.1039/c5ra24249e] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The origin of the oxidation peak in the cathodic scan of alcohol oxidation is elucidated with suggestion of new performance indicators.
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Affiliation(s)
- Yangzhi Zhao
- Department of Chemistry
- Colorado School of Mines
- Golden
- USA
| | - Xuemin Li
- Department of Chemistry
- Colorado School of Mines
- Golden
- USA
| | | | - Yongan Yang
- Department of Chemistry
- Colorado School of Mines
- Golden
- USA
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