1
|
Zhang J, Chen Y, Xu F, Zhang Y, Tian J, Guo Y, Chen G, Wang X, Yang L, Wu Q, Hu Z. High-Dispersive Pd Nanoparticles on Hierarchical N-Doped Carbon Nanocages to Boost Electrochemical CO 2 Reduction to Formate at Low Potential. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301577. [PMID: 37140077 DOI: 10.1002/smll.202301577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 04/03/2023] [Indexed: 05/05/2023]
Abstract
Electrochemical CO2 reduction reaction (CO2 RR) to value-added chemicals/fuels is an effective strategy to achieve the carbon neutral. Palladium is the only metal to selectively produce formate via CO2 RR at near-zero potentials. To reduce cost and improve activity, the high-dispersive Pd nanoparticles on hierarchical N-doped carbon nanocages (Pd/hNCNCs) are constructed by regulating pH in microwave-assisted ethylene glycol reduction. The optimal catalyst exhibits high formate Faradaic efficiency of >95% within -0.05-0.30 V and delivers an ultrahigh formate partial current density of 10.3 mA cm-2 at the low potential of -0.25 V. The high performance of Pd/hNCNCs is attributed to the small size of uniform Pd nanoparticles, the optimized intermediates adsorption/desorption on modified Pd by N-doped support, and the promoted mass/charge transfer kinetics arising from the hierarchical structure of hNCNCs. This study sheds light on the rational design of high-efficient electrocatalysts for advanced energy conversion.
Collapse
Affiliation(s)
- Junru Zhang
- Key Laboratory of Mesoscopic Chemistry of MOE, Jiangsu Provincial Laboratory for Nanotechnology, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Yiqun Chen
- Key Laboratory of Mesoscopic Chemistry of MOE, Jiangsu Provincial Laboratory for Nanotechnology, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Fengfei Xu
- Key Laboratory of Mesoscopic Chemistry of MOE, Jiangsu Provincial Laboratory for Nanotechnology, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Yan Zhang
- Key Laboratory of Mesoscopic Chemistry of MOE, Jiangsu Provincial Laboratory for Nanotechnology, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Jingyi Tian
- Key Laboratory of Mesoscopic Chemistry of MOE, Jiangsu Provincial Laboratory for Nanotechnology, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Yue Guo
- Key Laboratory of Mesoscopic Chemistry of MOE, Jiangsu Provincial Laboratory for Nanotechnology, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Guanghai Chen
- Key Laboratory of Mesoscopic Chemistry of MOE, Jiangsu Provincial Laboratory for Nanotechnology, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Xizhang Wang
- Key Laboratory of Mesoscopic Chemistry of MOE, Jiangsu Provincial Laboratory for Nanotechnology, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Lijun Yang
- Key Laboratory of Mesoscopic Chemistry of MOE, Jiangsu Provincial Laboratory for Nanotechnology, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Qiang Wu
- Key Laboratory of Mesoscopic Chemistry of MOE, Jiangsu Provincial Laboratory for Nanotechnology, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Zheng Hu
- Key Laboratory of Mesoscopic Chemistry of MOE, Jiangsu Provincial Laboratory for Nanotechnology, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| |
Collapse
|
2
|
Themsirimongkon S, Chanawanno K, Waenkaew P, Maturos S, Pongpitchayakul N, Fang L, Jakmunee J, Saipanya S. Nanocomposite of electrodeposited Pd on FBOPHY-modified reduced graphene oxide for the electrocatalytic enhancement of formic acid oxidation. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
|
3
|
Iron-Induced Lattice Distortion Generally Boots the Graphene-Supported Nickel Phosphide Nanoparticles Catalysis for Efficient Overall Water Splitting. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
4
|
Liu B, Wu C, Wen C, Li H, Shimura Y, Tatsuoka H, Sa B. Promoting effect of (Co, Ni)O solid solution on Pd catalysts for ethylene glycol electrooxidation in alkaline solution. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.139965] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
5
|
Peng D, Wang Y, Lv L, Zhou Z, Wang Y, Lv A, Lin TW, Xin Z, Zhang B, Qian X. Insight into degradation mechanism of Pd nanoparticles on NCNTs catalyst for ethanol electrooxidation: A combined identical-location transmission electron microscopy and X-ray photoelectron spectroscopy study. Chem Phys 2021. [DOI: 10.1016/j.chemphys.2021.111244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
6
|
Recent developments of nanocarbon based supports for PEMFCs electrocatalysts. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63736-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
7
|
Wang M, Ding R, Xiao Y, Wang H, Wang L, Chen CM, Mu Y, Wu GP, Lv B. CoP/RGO-Pd Hybrids with Heterointerfaces as Highly Active Catalysts for Ethanol Electrooxidation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:28903-28914. [PMID: 32470287 DOI: 10.1021/acsami.0c07703] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The ethanol oxidation reaction is of critical importance to the commercial viability of direct ethanol fuel cell technology. However, owing to the poor C-C bond cleavage capability, almost all ethanol oxidation is incomplete and suffers from low selectivity toward the C1 pathway. Herein, under the support of theoretical calculations that the heterointerfaces between CoP and Pd can reduce the energy barrier of C-C bond cleavage, rich heterointerfaces in CoP/RGO-Pd hybrids were designed to improve ethanol electrooxidation performance through enhancing the selectivity toward the C1 pathway. The experimental results show that the faradaic efficiency of the C1 pathway of CoP/RGO-Pd hybrids is as high as 27.6%, surpassing most reported catalysts in the literature. As a result of this enhancement, CoP/RGO-Pd10 exhibits mass activity as high as 4597 mA·mgPd-1 and specific activity as high as 10 mA·cm-2, which are much higher than those of other Pd-based electrocatalysts.
Collapse
Affiliation(s)
- Mengchao Wang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
- University of Chinese Academy of Science, Center of Materials Science and Optoelectronics Engineering, Beijing 100049, China
| | - Ruimin Ding
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Yicong Xiao
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Huixiang Wang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Liancheng Wang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Cheng-Meng Chen
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Yuewen Mu
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
| | - Gang-Ping Wu
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Baoliang Lv
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| |
Collapse
|
8
|
Kim H, Kim W, Cho S, Park J, Jung GY. Molecular Sieve Based on a PMMA/ZIF-8 Bilayer for a CO-Tolerable H 2 Sensor with Superior Sensing Performance. ACS APPLIED MATERIALS & INTERFACES 2020; 12:28616-28623. [PMID: 32466637 DOI: 10.1021/acsami.0c05369] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Semiconductor sensors equipped with Pd catalysts are promising candidates as low-powered and miniaturized surveillance devices that are used to detect flammable hydrogen (H2) gas. However, the following issues remain unresolved: (i) a sluggish sensing speed at room temperature and (ii) deterioration of sensing performance caused by interfering gases, particularly, carbon monoxide (CO). Herein, a bilayer comprising poly(methyl methacrylate) (PMMA) and zeolitic imidazolate framework-8 (ZIF-8) is utilized as a molecular sieve for diode-type H2 sensors based on a Pd-decorated indium-gallium-zinc oxide film on a p-type silicon substrate. While the PMMA effectively blocks the penetration of CO gas molecules into the sensing entity, the ZIF-8 improves sensing performances by modifying the catalytic activity of Pd, which is preferable for splitting H2 and O2 molecules. Consequently, the bilayer-covered sensor achieves outstanding CO tolerance with superior sensing figures of merit (response/recovery times of <10 s and sensing response of >5000% at 1% H2).
Collapse
Affiliation(s)
- Hyeonghun Kim
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Woochul Kim
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Sungjun Cho
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Jiyoon Park
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Gun Young Jung
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| |
Collapse
|
9
|
Jiang H, Liu L, Zhao K, Liu Z, Zhang X, Hu S. Effect of pyridinic- and pyrrolic-nitrogen on electrochemical performance of Pd for formic acid electrooxidation. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.135758] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
10
|
Pinheiro VS, Souza FM, Gentil TC, Böhnstedt P, Paz EC, Parreira LS, Hammer P, Batista BL, Santos MC. Insights in the Study of the Oxygen Reduction Reaction in Direct Ethanol Fuel Cells using Hybrid Platinum‐Ceria Nanorods Electrocatalysts. ChemElectroChem 2019. [DOI: 10.1002/celc.201901253] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Victor S. Pinheiro
- Laboratório de Eletroquímica e Materiais Nanoestruturados (LEMN) Centro de Ciências Naturais e Humanas (CCNH)Universidade Federal do ABC (UFABC), CEP 09.210-170 Rua Santa Adélia 166, Bairro Bangu Santo André, SP Brazil
| | - Felipe M. Souza
- Laboratório de Eletroquímica e Materiais Nanoestruturados (LEMN) Centro de Ciências Naturais e Humanas (CCNH)Universidade Federal do ABC (UFABC), CEP 09.210-170 Rua Santa Adélia 166, Bairro Bangu Santo André, SP Brazil
| | - Tuani C. Gentil
- Laboratório de Eletroquímica e Materiais Nanoestruturados (LEMN) Centro de Ciências Naturais e Humanas (CCNH)Universidade Federal do ABC (UFABC), CEP 09.210-170 Rua Santa Adélia 166, Bairro Bangu Santo André, SP Brazil
| | - Paula Böhnstedt
- Laboratório de Eletroquímica e Materiais Nanoestruturados (LEMN) Centro de Ciências Naturais e Humanas (CCNH)Universidade Federal do ABC (UFABC), CEP 09.210-170 Rua Santa Adélia 166, Bairro Bangu Santo André, SP Brazil
| | - Edson C. Paz
- Laboratório de Eletroquímica e Materiais Nanoestruturados (LEMN) Centro de Ciências Naturais e Humanas (CCNH)Universidade Federal do ABC (UFABC), CEP 09.210-170 Rua Santa Adélia 166, Bairro Bangu Santo André, SP Brazil
- Instituto Federal de EducaçãoCiência e Tecnologia do Maranhão (IFMA), Campus Açailândia, CEP 65.930-000, R. Projetada, s/n Açailândia, MA Brazil
| | - Luanna S. Parreira
- Instituto de Química (IQ)Universidade de São Paulo (USP), CEP 05.508-000 Av. Prof. Lineu Prestes, 748 São Paulo, SP Brazil
| | - Peter Hammer
- Instituto de Química, UNESPUniversidade Estadual Paulista, CEP 14800-060 Araraquara, SP Brazil
| | - Bruno L. Batista
- Laboratório de Eletroquímica e Materiais Nanoestruturados (LEMN) Centro de Ciências Naturais e Humanas (CCNH)Universidade Federal do ABC (UFABC), CEP 09.210-170 Rua Santa Adélia 166, Bairro Bangu Santo André, SP Brazil
| | - Mauro C. Santos
- Laboratório de Eletroquímica e Materiais Nanoestruturados (LEMN) Centro de Ciências Naturais e Humanas (CCNH)Universidade Federal do ABC (UFABC), CEP 09.210-170 Rua Santa Adélia 166, Bairro Bangu Santo André, SP Brazil
| |
Collapse
|
11
|
Lei C, Zhou W, Feng Q, Lei Y, Zhang Y, Chen Y, Qin J. Charge Engineering of Mo 2C@Defect-Rich N-Doped Carbon Nanosheets for Efficient Electrocatalytic H 2 Evolution. NANO-MICRO LETTERS 2019; 11:45. [PMID: 34138010 PMCID: PMC7770866 DOI: 10.1007/s40820-019-0279-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 05/15/2019] [Indexed: 05/21/2023]
Abstract
Charge engineering of carbon materials with many defects shows great potential in electrocatalysis, and molybdenum carbide (Mo2C) is one of the noble-metal-free electrocatalysts with the most potential. Herein, we study the Mo2C on pyridinic nitrogen-doped defective carbon sheets (MoNCs) as catalysts for the hydrogen evolution reaction. Theoretical calculations imply that the introduction of Mo2C produces a graphene wave structure, which in some senses behaves like N doping to form localized charges. Being an active electrocatalyst, MoNCs demonstrate a Tafel slope as low as 60.6 mV dec-1 and high durability of up to 10 h in acidic media. Besides charge engineering, plentiful defects and hierarchical morphology also contribute to good performance. This work underlines the importance of charge engineering to boost catalytic performance.
Collapse
Affiliation(s)
- Chunsheng Lei
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, People's Republic of China
- College of Environmental and Safety Engineering, Changzhou University, Changzhou, 213164, People's Republic of China
| | - Wen Zhou
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, People's Republic of China
- College of Environmental and Safety Engineering, Changzhou University, Changzhou, 213164, People's Republic of China
| | - Qingguo Feng
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, and Institute of Materials Dynamics, Southwest Jiaotong University, Chengdu, 610031, Sichuan, People's Republic of China
| | - Yongpeng Lei
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, People's Republic of China.
- Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China.
| | - Yi Zhang
- Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China
| | - Yin Chen
- Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China
| | - Jiaqian Qin
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, 10330, Thailand
| |
Collapse
|
12
|
Lin Z, Wang H, Lei M. Solvent Engineering of Highly Conductive and Porous Fullerene Ammonium Iodide for Immobilizing Pd Nanoparticles with Enhanced Electrocatalytic Activity Toward Ethanol Oxidation. Electrocatalysis (N Y) 2019. [DOI: 10.1007/s12678-019-00535-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
13
|
One-pot carbonization of chitosan/P123/PdCl2 blend hydrogel membranes to N-doped carbon supported Pd catalytic composites for Ullmann reactions. Int J Biol Macromol 2019; 125:213-220. [DOI: 10.1016/j.ijbiomac.2018.12.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 11/29/2018] [Accepted: 12/01/2018] [Indexed: 12/26/2022]
|
14
|
Mineralization of paracetamol using a gas diffusion electrode modified with ceria high aspect ratio nanostructures. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.10.097] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
15
|
Wang HH, Sun X, Lin ZC, Pang ZF, Kong XQ, Lei M, Li YF. Self-assembly of highly conductive self-n-doped fullerene ammonium halides and their application in the in situ solution-processable fabrication of working electrodes for alcohol electrooxidation. RSC Adv 2018; 8:9503-9511. [PMID: 35541847 PMCID: PMC9078672 DOI: 10.1039/c8ra00100f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 02/20/2018] [Indexed: 01/03/2023] Open
Abstract
Stable and highly conductive self-n-doped fullerene ammonium halides are promising optoelectronic materials. It is necessary to thoroughly understand their structure-function relationship and to develop their applications. Here, the assembly behaviors of the self-n-doped fullerene ammonium halides, as well as the functional areas in the well-developed 2D-3D lamellar structures in their ordered aggregates are systematically characterized using comprehensive methods. In the self-assembly, the solvation effect of DMSO promotes the flexibility of side-chains and drives the formation of fullerene ammonium halides into ordered bilayer structures. The conductivity-active area, which contains tightly packed halide anions sandwiched between fullerenes, provides good electron transfer property. Remarkably, residual DMSO in the side-chain area can induce aqueous Pd precursor into the highly conductive framework. After reduction, Pd nanoparticles are immobilized in the confined spaces within the conductive support. The resulting electrode can be used to electrooxidize ethanol. This study provides a facile solution strategy for the in situ fabrication of electrocatalysts on working electrodes, which can be applied in direct alcohol fuel cells.
Collapse
Affiliation(s)
- H H Wang
- Department of Chemistry, Zhejiang University Hangzhou 310027 China
| | - X Sun
- Department of Chemistry, Zhejiang University Hangzhou 310027 China
| | - Z C Lin
- Department of Chemistry, Zhejiang University Hangzhou 310027 China
| | - Z F Pang
- Department of Chemistry, Zhejiang University Hangzhou 310027 China
| | - X Q Kong
- Department of Chemistry, Zhejiang University Hangzhou 310027 China
| | - M Lei
- Department of Chemistry, Zhejiang University Hangzhou 310027 China
| | - Y F Li
- CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| |
Collapse
|
16
|
Guo F, Li Y, Fan B, Liu Y, Lu L, Lei Y. Carbon- and Binder-Free Core-Shell Nanowire Arrays for Efficient Ethanol Electro-Oxidation in Alkaline Medium. ACS APPLIED MATERIALS & INTERFACES 2018; 10:4705-4714. [PMID: 29333855 DOI: 10.1021/acsami.7b16615] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
To achieve high electrochemical surface area (ECSA) and avoid carbon support and binder in the anode catalyst of direct ethanol fuel cell, herein, we design freestanding core-shell nickel@palladium-nickel nanowire arrays (Ni@Pd-Ni NAs) without carbon support and binder for high-efficiency ethanol electro-oxidation. Bare Ni nanowire arrays (Ni NAs) are first prepared using the facile template-assistant electrodeposition method. Subsequently, the Ni@Pd-Ni NAs are formed using one-step solution-based alloying reaction. The optimized Ni@Pd-Ni NA electrode with a high ECSA of 64.4 m2 g-1Pd exhibits excellent electrochemical performance (peak current density: 622 A g-1Pd) and cycling stability for ethanol electro-oxidation. The facilely obtained yet high-efficiency core-shell Ni@Pd-Ni NA electrode is a promising electrocatalyst, which can be utilized for oxygen reduction reaction, urea, hydrazine hydrate, and hydrogen peroxide electro-oxidation, not limited to the ethanol electro-oxidation.
Collapse
Affiliation(s)
- Fen Guo
- Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology , Wuhan 430081, P. R. China
| | - Yiju Li
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University , Harbin 150001, P. R. China
- Department of Materials Science and Engineering, University of Maryland at College Park , College Park, Maryland 20742, United States
| | - Baoan Fan
- Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology , Wuhan 430081, P. R. China
| | - Yi Liu
- Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology , Wuhan 430081, P. R. China
| | - Lilin Lu
- Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology , Wuhan 430081, P. R. China
| | - Yang Lei
- Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology , Wuhan 430081, P. R. China
| |
Collapse
|
17
|
Yang X, Chen J, Chen Y, Feng P, Lai H, Li J, Luo X. Novel Co 3O 4 Nanoparticles/Nitrogen-Doped Carbon Composites with Extraordinary Catalytic Activity for Oxygen Evolution Reaction (OER). NANO-MICRO LETTERS 2018; 10:15. [PMID: 30393664 PMCID: PMC6199064 DOI: 10.1007/s40820-017-0170-4] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 10/08/2017] [Indexed: 05/22/2023]
Abstract
Herein, Co3O4 nanoparticles/nitrogen-doped carbon (Co3O4/NPC) composites with different structures were prepared via a facile method. Structure control was achieved by the rational morphology design of ZIF-67 precursors, which were then pyrolyzed in air to obtain Co3O4/NPC composites. When applied as catalysts for the oxygen evolution reaction (OER), the M-Co3O4/NPC composites derived from the flower-like ZIF-67 showed superior catalytic activities than those derived from the rhombic dodecahedron and hollow spherical ZIF-67. The former M-Co3O4/NPC composite displayed a small over-potential of 0.3 V, low onset potential of 1.41 V, small Tafel slope of 83 mV dec-1, and a desirable stability. (94.7% OER activity was retained after 10 h.) The excellent performance of the flower-like M-Co3O4/NPC composite in the OER was attributed to its favorable structure.
Collapse
Affiliation(s)
- Xiaobing Yang
- College of Ecology and Resource Engineering, Wuyi University, Wuyishan, 354300, Fujian, People's Republic of China
- Fujian Provincial Key Laboratory of Eco-Industrial Green Technology, Wuyi University, Wuyishan, 354300, Fujian, People's Republic of China
| | - Juan Chen
- Department of Pharmacy, Zhongshan Hospital, Xiamen University, Xiamen, 361004, Fujian, People's Republic of China
| | - Yuqing Chen
- Fujian Key Laboratory of Advanced Materials, College of Materials, Xiamen University, Xiamen, 361005, Fujian, People's Republic of China
| | - Pingjing Feng
- Fujian Key Laboratory of Advanced Materials, College of Materials, Xiamen University, Xiamen, 361005, Fujian, People's Republic of China
| | - Huixian Lai
- Fujian Key Laboratory of Advanced Materials, College of Materials, Xiamen University, Xiamen, 361005, Fujian, People's Republic of China
| | - Jintang Li
- Fujian Key Laboratory of Advanced Materials, College of Materials, Xiamen University, Xiamen, 361005, Fujian, People's Republic of China
| | - Xuetao Luo
- Fujian Key Laboratory of Advanced Materials, College of Materials, Xiamen University, Xiamen, 361005, Fujian, People's Republic of China.
| |
Collapse
|
18
|
Pd supported on carbon containing nickel, nitrogen and sulfur for ethanol electrooxidation. Sci Rep 2017; 7:15479. [PMID: 29133796 PMCID: PMC5684197 DOI: 10.1038/s41598-017-15060-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 10/06/2017] [Indexed: 11/12/2022] Open
Abstract
Carbon material containing nickel, nitrogen and sulfur (Ni-NSC) has been synthesized using metal-organic frameworks (MOFs) as precursor by annealing treatment with a size from 200 to 300 nm. Pd nanoparticles supported on the Ni-NSC (Pd/Ni-NSC) are used as electrocatalysts for ethanol oxidation in alkaline media. Due to the synergistic effect between Pd and Ni, S, N, free OH radicals can form on the surface of Ni, N and S atoms at lower potentials, which react with CH3CO intermediate species on the Pd surface to produce CH3COO− and release the active sites. On the other hand, the stronger binding force between Pd and co-doped N and S is responsible for enhancing dispersion and preventing agglomeration of the Pd nanoparticles. The Pd(20 wt%)/Ni-NSC shows better electrochemical performance of ethanol oxidation than the traditional commercial Pd(20 wt%)/C catalyst. Onset potential on the Pd(20 wt%)/Ni-NSC electrode is 36 mV more negative compared with that on the commercial Pd(20 wt%)/C electrode. The Pd(20 wt%)/Ni-NSC in this paper demonstrates to have excellent electrocatalytic properties and is considered as a promising catalyst in alkaline direct ethanol fuel cells.
Collapse
|
19
|
Soroka IL, Tarakina NV, Hermansson A, Bigum L, Widerberg R, Andersson MS, Mathieu R, Paulraj AR, Kiros Y. Radiation-induced synthesis of nanoscale Co- and Ni-based electro-catalysts on carbon for the oxygen reduction reaction. Dalton Trans 2017; 46:9995-10002. [DOI: 10.1039/c7dt01162h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile synthesis of 3d-metal based electro-catalysts directly incorporated into a carbon support was carried out by γ-radiation.
Collapse
Affiliation(s)
- Inna L. Soroka
- School of Chemical Science & Engineering
- KTH Royal Institute of Technology
- S-100 44 Stockholm
- Sweden
| | - Nadezda V. Tarakina
- School of Engineering and Materials Science
- Queen Mary University of London
- London E1 4NS
- UK
| | - Anton Hermansson
- School of Chemical Science & Engineering
- KTH Royal Institute of Technology
- S-100 44 Stockholm
- Sweden
| | - Lukas Bigum
- School of Chemical Science & Engineering
- KTH Royal Institute of Technology
- S-100 44 Stockholm
- Sweden
| | - Rickard Widerberg
- School of Chemical Science & Engineering
- KTH Royal Institute of Technology
- S-100 44 Stockholm
- Sweden
| | | | - Roland Mathieu
- Department of Engineering Sciences
- Uppsala University
- SE-75121
- Sweden
| | - Alagar R. Paulraj
- School of Chemical Science & Engineering
- KTH Royal Institute of Technology
- S-100 44 Stockholm
- Sweden
| | - Yohannes Kiros
- School of Chemical Science & Engineering
- KTH Royal Institute of Technology
- S-100 44 Stockholm
- Sweden
| |
Collapse
|