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Zhou CA, Ma K, Zhuang Z, Ran M, Shu G, Wang C, Song L, Zheng L, Yue H, Wang D. Tuning the Local Environment of Pt Species at CNT@MO 2-x (M = Sn and Ce) Heterointerfaces for Boosted Alkaline Hydrogen Evolution. J Am Chem Soc 2024; 146:21453-21465. [PMID: 39052434 DOI: 10.1021/jacs.4c04189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
As the most promising hydrogen evolution reaction (HER) electrocatalysts, platinum (Pt)-based catalysts still struggle with sluggish kinetics and expensive costs in alkaline media. Herein, we accelerate the alkaline hydrogen evolution kinetics by optimizing the local environment of Pt species and metal oxide heterointerfaces. The well-dispersed PtRu bimetallic clusters with adjacent MO2-x (M = Sn and Ce) on carbon nanotubes (PtRu/CNT@MO2-x) are demonstrated to be a potential electrocatalyst for alkaline HER, exhibiting an overpotential of only 75 mV at 100 mA cm-2 in 1 M KOH. The excellent mass activity of 12.3 mA μg-1Pt+Ru and specific activity of 32.0 mA cm-2ECSA at an overpotential of 70 mV are 56 and 64 times higher than those of commercial Pt/C. Experimental and theoretical investigations reveal that the heterointerfaces between Pt clusters and MO2-x can simultaneously promote H2O adsorption and activation, while the modification with Ru further optimizes H adsorption and H2O dissociation energy barriers. Then, the matching kinetics between the accelerated elementary steps achieved superb hydrogen generation in alkaline media. This work provides new insight into catalytic local environment design to simultaneously optimize the elementary steps for obtaining ideal alkaline HER performance.
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Affiliation(s)
- Chang-An Zhou
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Kui Ma
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Zechao Zhuang
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Meiling Ran
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Guoqiang Shu
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Chao Wang
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Lei Song
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Lirong Zheng
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Hairong Yue
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610207, China
| | - Dingsheng Wang
- Department of Chemistry, Tsinghua University, Beijing 100084, China
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2
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Guo X, Cao SM, Liu X, Huang C, Zhou J. Facile solvothermal preparation of an organic hybrid dysprosium selenidoantimonate for an efficient oxygen evolution reaction. Dalton Trans 2023; 52:14297-14302. [PMID: 37791600 DOI: 10.1039/d3dt02492j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
To overcome the issue of the sluggish kinetics in the oxygen evolution reaction (OER), the development of an efficient OER electrocatalyst with high intrinsic activity is very desirable for green hydrogen energy utilization from electrochemical water splitting. Herein, a facile and feasible solvothermal reaction of Sb, Se, DyCl3 and triethylenetetramine (teta) at 170 °C for 7 days achieved a new organic hybrid dysprosium selenidoantimonate [Dy(teta)2][SbSe4] (SbSe-1), which comprises discrete [SbSe4]3- and [Dy(teta)2]3+ ions. SbSe-1 was utilized in combination with acetylene black (AB), Ni nanoparticles and the porous Ni foam (NF) support to fabricate a Ni/SbSe-1@AB/NF electrode as an efficient anodic electrocatalyst, showing excellent OER electrocatalytic performance with a low overpotential of 269 mV at 10 mA cm-2. Although some antimony chalcogenides are used as electrocatalysts for the water splitting, organic hybrid lanthanide chalcogenidoantimonates applied as OER electrocatalysts have not emerged. Therefore, SbSe-1 offers the first example of an organic hybrid lanthanide chalcogenido-antimonate as an OER electrocatalyst.
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Affiliation(s)
- Xin Guo
- Chongqing Key Laboratory of Inorganic Functional Materials, College of Chemistry, Chongqing Normal University, Chongqing 401331, P. R. China.
| | - Shu-Mei Cao
- Chongqing Key Laboratory of Inorganic Functional Materials, College of Chemistry, Chongqing Normal University, Chongqing 401331, P. R. China.
| | - Xing Liu
- Chongqing Key Laboratory of Inorganic Functional Materials, College of Chemistry, Chongqing Normal University, Chongqing 401331, P. R. China.
| | - Chunmei Huang
- Chongqing Key Laboratory of Inorganic Functional Materials, College of Chemistry, Chongqing Normal University, Chongqing 401331, P. R. China.
| | - Jian Zhou
- Chongqing Key Laboratory of Inorganic Functional Materials, College of Chemistry, Chongqing Normal University, Chongqing 401331, P. R. China.
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Zhu Y, Yao J, Lu T, Pan Y. In-situ constructing self-supported NiO/RuO 2 heterostructure for reinforced alkaline hydrogen evolution reaction. J Colloid Interface Sci 2023; 633:32-42. [PMID: 36434933 DOI: 10.1016/j.jcis.2022.11.076] [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: 08/04/2022] [Revised: 10/04/2022] [Accepted: 11/15/2022] [Indexed: 11/21/2022]
Abstract
Rationally designing a strongly coupled heterostructure with rich functional sites and high catalytic stability is essential for efficient energy conversion. This work synthesizes a self-supported NiO/RuO2 heterostructure for hydrogen production via facile dealloying following an in-situ electrochemical oxidation method. It only requires 88 ± 1 mV to drive a current density of -100 mA/cm2 in the alkaline electrolyte during hydrogen evolution reaction (HER), outperforming NiO, RuO2, and Pt foil. The higher anodic potential applied to the dealloyed ribbons results in lower overpotentials and faster reaction kinetics. Meanwhile, the catalytic activity and stability of the individual NiO can be significantly improved once coupled with a small amount of heterogeneous RuO2. The strong synergistic effect between NiO and RuO2 contributes to exposing abundant active sites, optimizing electronic structure, facilitating charge transfer at the interface, and most importantly, maintaining structural stability. These advantages make the self-supported NiO/RuO2 heterostructure a promising candidate for replacing the Pt-based catalysts.
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Affiliation(s)
- Yin'an Zhu
- School of Materials Science and Engineering, Jiangsu Key Laboratory of Advanced Metallic Materials, Southeast University, Nanjing 211189, China
| | - Jia Yao
- School of Materials Science and Engineering, Jiangsu Key Laboratory of Advanced Metallic Materials, Southeast University, Nanjing 211189, China
| | - Tao Lu
- School of Materials Science and Engineering, Jiangsu Key Laboratory of Advanced Metallic Materials, Southeast University, Nanjing 211189, China
| | - Ye Pan
- School of Materials Science and Engineering, Jiangsu Key Laboratory of Advanced Metallic Materials, Southeast University, Nanjing 211189, China.
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4
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Liu Y, Zuo L, Zhou Z, Zhang J, Kang Z, Zhu J, Zhu G. Ultrathin Ru-Ni nanounits as hydrogen oxidation catalysts with an alkaline electrolyte. Dalton Trans 2022; 51:15467-15474. [PMID: 36156615 DOI: 10.1039/d2dt02373c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The development of hydrogen-oxygen fuel cells with an alkaline electrolyte was highly limited by the sluggish kinetics of the hydrogen oxidation reaction (HOR). Here, with a pyrolysis-reduction route, a new RuNi-based electrocatalyst was prepared, which presents an ultrathin nanowire-like structure. In alkaline media, this catalyst shows an excellent catalytic performance with an exchange current density of 1.10 mA cm-2disk for hydrogen oxidation. The exchange current density and mass activity of this catalyst are much higher than those of its single-metal counterparts and even the commercial Pt/C catalyst containing 20% Pt. Such a remarkable catalytic activity can be explained by the interaction between Ru and Ni; the incorporation of Ni may induce an electronic effect on the optimization of the Ru-Had strength and provide a functional surface that can absorb OH species, thus boosting the catalytic activity. These findings may cast a new light on the exploration of low-cost but high-efficiency catalysts for fuel cells.
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Affiliation(s)
- Yuanjun Liu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China.
| | - Longkun Zuo
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China.
| | - Zhihang Zhou
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China.
| | - Junhao Zhang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China.
| | - Ziliang Kang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China.
| | - Jun Zhu
- Faculty of Transportation Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Guoxing Zhu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China.
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5
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Williams CK, McCarver GA, Chaturvedi A, Sinha S, Ang M, Vogiatzis KD, Jiang J“J. Electrocatalytic Hydrogen Evolution Using A Molecular Antimony Complex under Aqueous Conditions: An Experimental and Computational Study on Main‐Group Element Catalysis. Chemistry 2022; 28:e202201323. [DOI: 10.1002/chem.202201323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Caroline K. Williams
- Department of Chemistry University of Cincinnati P.O. Box 210172 Cincinnati Ohio 45221 USA
| | - Gavin A. McCarver
- Department of Chemistry University of Tennessee Knoxville Tennessee 37996-1600 USA
| | - Ashwin Chaturvedi
- Department of Chemistry University of Cincinnati P.O. Box 210172 Cincinnati Ohio 45221 USA
| | - Soumalya Sinha
- Department of Chemistry University of Cincinnati P.O. Box 210172 Cincinnati Ohio 45221 USA
| | - Marcus Ang
- Department of Chemistry University of Cincinnati P.O. Box 210172 Cincinnati Ohio 45221 USA
| | | | - Jianbing “Jimmy” Jiang
- Department of Chemistry University of Cincinnati P.O. Box 210172 Cincinnati Ohio 45221 USA
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Chen Z, Yang H, Kang Z, Driess M, Menezes PW. The Pivotal Role of s-, p-, and f-Block Metals in Water Electrolysis: Status Quo and Perspectives. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2108432. [PMID: 35104388 DOI: 10.1002/adma.202108432] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 01/19/2022] [Indexed: 05/27/2023]
Abstract
Transition metals, in particular noble metals, are the most common species in metal-mediated water electrolysis because they serve as highly active catalytic sites. In many cases, the presence of nontransition metals, that is, s-, p-, and f-block metals with high natural abundance in the earth-crust in the catalytic material is indispensable to boost efficiency and durability in water electrolysis. This is why alkali metals, alkaline-earth metals, rare-earth metals, lean metals, and metalloids receive growing interest in this research area. In spite of the pivotal role of these nontransition metals in tuning efficiency of water electrolysis, there is far more room for developments toward a knowledge-based catalyst design. In this review, five classes of nontransition metals species which are successfully utilized in water electrolysis, with special emphasis on electronic structure-catalytic activity relationships and phase stability, are discussed. Moreover, specific fundamental aspects on electrocatalysts for water electrolysis as well as a perspective on this research field are also addressed in this account. It is anticipated that this review can trigger a broader interest in using s-, p-, and f-block metals species toward the discovery of advanced polymetal-containing electrocatalysts for practical water splitting.
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Affiliation(s)
- Ziliang Chen
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, P. R. China
- Department of Chemistry, Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Hongyuan Yang
- Department of Chemistry, Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Zhenhui Kang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, P. R. China
| | - Matthias Driess
- Department of Chemistry, Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Prashanth W Menezes
- Department of Chemistry, Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
- Material Chemistry Group for Thin Film Catalysis - CatLab, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489, Berlin, Germany
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Hao JG, Chen HQ, Xie L, Li ZX, Zhang JL, Huang WY, Deng T, Lu KQ, Yang K. Rationally designed Sb2S3/PDI composites with enhanced visible light photoactivity. CATAL COMMUN 2022. [DOI: 10.1016/j.catcom.2021.106368] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
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8
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Zhang Y, Zhang Y, Zhang H, Bai L, Hao L, Ma T, Huang H. Defect engineering in metal sulfides for energy conversion and storage. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214147] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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9
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Zhao R, Yue X, Li Q, Fu G, Lee JM, Huang S. Recent Advances in Electrocatalysts for Alkaline Hydrogen Oxidation Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2100391. [PMID: 34159714 DOI: 10.1002/smll.202100391] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/18/2021] [Indexed: 06/13/2023]
Abstract
With the rapid development of anion-exchange membrane technology and adequate supply of high-performance non-noble metal oxygen reduction reaction (ORR) catalysts in alkaline media, the commercialization of anion exchange membrane fuel cells (AEMFCs) become possible. However, the kinetics of the anodic hydrogen oxidation reaction (HOR) in AEMFCs is significantly decreased compared to the HOR in proton exchange membrane fuel cells (PEMFCs). Therefore, it is urgent to develop HOR catalysts with low price, high activity, and robust stability. However, comprehensive timely reviews on this specific subject do not exist enough yet and it is necessary to update reported major achievements and to point out future investigation directions. In this review, the current reaction mechanisms on HOR are summarized and deeply understood. The debates between the mechanisms are greatly harmonized. Recent advances in developing highly active and stable electrocatalysts for the HOR are reviewed. Moreover, the side reaction control is for the first time systematically introduced. Finally, the challenges and future opportunities in the field of HOR catalysis are outlined.
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Affiliation(s)
- Ruopeng Zhao
- Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage Devices, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, P. R. China
- School of Chemical and Biomedical Engineering, Nanyang Technology University, Singapore, 637459, Singapore
| | - Xin Yue
- Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage Devices, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, P. R. China
| | - Qinghua Li
- Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage Devices, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, P. R. China
| | - Gengtao Fu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation, Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Jong-Min Lee
- School of Chemical and Biomedical Engineering, Nanyang Technology University, Singapore, 637459, Singapore
| | - Shaoming Huang
- Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage Devices, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, P. R. China
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10
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Guntern YT, Okatenko V, Pankhurst J, Varandili SB, Iyengar P, Koolen C, Stoian D, Vavra J, Buonsanti R. Colloidal Nanocrystals as Electrocatalysts with Tunable Activity and Selectivity. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04403] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yannick T. Guntern
- Laboratory of Nanochemistry for Energy (LNCE), Department of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, CH-1950 Sion, Switzerland
| | - Valery Okatenko
- Laboratory of Nanochemistry for Energy (LNCE), Department of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, CH-1950 Sion, Switzerland
| | - James Pankhurst
- Laboratory of Nanochemistry for Energy (LNCE), Department of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, CH-1950 Sion, Switzerland
| | - Seyedeh Behnaz Varandili
- Laboratory of Nanochemistry for Energy (LNCE), Department of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, CH-1950 Sion, Switzerland
| | - Pranit Iyengar
- Laboratory of Nanochemistry for Energy (LNCE), Department of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, CH-1950 Sion, Switzerland
| | - Cedric Koolen
- Laboratory of Nanochemistry for Energy (LNCE), Department of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, CH-1950 Sion, Switzerland
| | - Dragos Stoian
- Laboratory of Nanochemistry for Energy (LNCE), Department of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, CH-1950 Sion, Switzerland
| | - Jan Vavra
- Laboratory of Nanochemistry for Energy (LNCE), Department of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, CH-1950 Sion, Switzerland
| | - Raffaella Buonsanti
- Laboratory of Nanochemistry for Energy (LNCE), Department of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, CH-1950 Sion, Switzerland
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11
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Ghosh K, Srivastava SK. Superior supercapacitor performance of Bi 2S 3 nanorod/reduced graphene oxide composites. Dalton Trans 2020; 49:16993-17004. [PMID: 33191423 DOI: 10.1039/d0dt03594g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present work is focused on the synthesis of bismuth sulfide (Bi2S3) nanorod/reduced graphene oxide (RGO) composites via a one-step hydrothermal method using GO and bismuth nitrate in 5 : 1, 3 : 1 and 2 : 1 weight ratios and their characterization. The morphological studies revealed the formation of homogeneously dispersed Bi2S3 nanorods on RGO sheets along with occasional wrapping in the Bi2S3 nanorod/RGO (3 : 1) composite. XRD, FTIR, Raman and XPS studies suggested the incorporation of Bi2S3 in RGO sheets. The galvanostatic charge-discharge measurements showed that the Bi2S3 nanorod/RGO (3 : 1) composite exhibited the highest specific capacitance (1932 F g-1) at 1 A g-1 in the presence of 2 M aqueous KOH in a three-electrode cell. This is ascribed to the enhanced contact area between metal sulfide nanoparticles and RGO, increased conductivity and synergistic effect of Bi2S3 and RGO. The optimized Bi2S3 nanorod/RGO (3 : 1) composite also maintained an excellent cycling stability with ∼100% capacitance retention after 700 cycles. It is noted that the supercapacitor performance of the Bi2S3 nanorod/RGO (3 : 1) composite was better than group V and VI metal chalcogenides and their nanocomposites reported in several previous studies.
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Affiliation(s)
- Kalyan Ghosh
- Department of Chemistry, Indian Institute of Technology, Kharagpur-721302, India.
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12
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Wang J, Zeng HC. Hybrid OER Electrocatalyst Combining Mesoporous Hollow Spheres of N, P-Doped Carbon with Ultrafine Co 2NiO x. ACS APPLIED MATERIALS & INTERFACES 2020; 12:50324-50332. [PMID: 33108167 DOI: 10.1021/acsami.0c12305] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A heterostructure combining mesoporous hollow spheres of N, P-doped carbon (meso-NPC) with ultrafine Co2NiOx nanoparticles has been synthesized as a highly active electrocatalyst, named meso-NPC/Co2NiOx. The meso-NPC hollow spheres were first fabricated via a novel nanocasting method using mesoporous SiO2 as the "mold" and the atomic ratio of P in the meso-NPC can be tuned by controlling the amount of one of the filling organics, etidronic acid. Because of the large surface area and abundant surface hydroxyls, the meso-NPC formed strong bonding with the Co2NiOx nanoparticles (<2 nm in size) loaded on it. Serving as an OER electrocatalyst, the heterogeneous meso-NPC/Co2NiOx shows great working enhancement compared to its single-component counterparts. Through further mechanism study by X-ray photoelectron spectroscopy, a strong effect of electron transfer is found from the Co2NiOx to the meso-NPC, which leads to increases in the oxidation state of transition metals (TMs). Most importantly, we also reveal that the increase in the amount of the P dopant in the meso-NPC/Co2NiOx system can efficiently facilitate this metal-to-support charge transfer, which also implies that the biphasic interaction between the Co2NiOx nanoparticles and the meso-NPC hollow spheres generates active catalytic sites of both TM-N-C and TM-P-C surface species.
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Affiliation(s)
- Jingjing Wang
- Department of Chemical and Biomolecular Engineering, Faculty of Engineering, National University of Singapore, 10 Kent Ridge Crescent, 119260, Singapore
| | - Hua Chun Zeng
- Department of Chemical and Biomolecular Engineering, Faculty of Engineering, National University of Singapore, 10 Kent Ridge Crescent, 119260, Singapore
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13
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Xu S, Li Z, Chu K, Yao G, Xu Y, Niu P, Zheng F. NiRu nanoparticles encapsulated in a nitrogen-doped carbon matrix as a highly efficient electrocatalyst for the hydrogen evolution reaction. Dalton Trans 2020; 49:13647-13654. [PMID: 32975258 DOI: 10.1039/d0dt02961k] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The design and fabrication of low-cost, efficient, and robust electrocatalysts for the hydrogen evolution reaction (HER) is of great importance in accelerating the development of water electrolysis technology. Herein, NiRu alloy nanostructures embedded in a nitrogen-doped carbon matrix (NiRu@NC) have been fabricated through a facile metal-organic framework-derived (MOF-derived) strategy. Benefiting from their advantages in the unique structures and components, the resulting NiRu@NC possesses excellent activity and durability towards the HER, which exhibits low overpotentials of 85 and 53 mV at a current density of 10 mA cm-2 in acidic and alkaline electrolytes, respectively. Furthermore, NiRu2@NC-600 also exhibits excellent hydrogen oxidation reaction (HOR) activity in an alkaline electrolyte. Therefore, this work provides a facile MOF-derived strategy for the design and synthesis of low-cost and efficient electrocatalysts for the HER.
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Affiliation(s)
- Shikai Xu
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Anhui University, Ministry of Education, Hefei, Anhui 230601, People's Republic of China. and Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, People's Republic of China
| | - Zhiqiang Li
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Anhui University, Ministry of Education, Hefei, Anhui 230601, People's Republic of China. and Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, People's Republic of China
| | - Kainian Chu
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Anhui University, Ministry of Education, Hefei, Anhui 230601, People's Republic of China. and Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, People's Republic of China
| | - Ge Yao
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Anhui University, Ministry of Education, Hefei, Anhui 230601, People's Republic of China. and Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, People's Republic of China
| | - Yang Xu
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Anhui University, Ministry of Education, Hefei, Anhui 230601, People's Republic of China. and Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, People's Republic of China
| | - Ping Niu
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Anhui University, Ministry of Education, Hefei, Anhui 230601, People's Republic of China. and Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, People's Republic of China
| | - Fangcai Zheng
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Anhui University, Ministry of Education, Hefei, Anhui 230601, People's Republic of China. and Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, People's Republic of China
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