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Peng C, Long T, Luo S, Ouyang M, Luo H, Xu D, Lin Q. Visualizing and sorbing Hg(II) with a cellulose-based red fluorescence aerogel: Simultaneous detection and removal. Int J Biol Macromol 2024; 264:130563. [PMID: 38431018 DOI: 10.1016/j.ijbiomac.2024.130563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/10/2024] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Abstract
Both sensing and removal of Hg(II) are important to environment and human health in view of the high toxicity and wide applications of mercury in industry. This study aims to develop a cellulose-based fluorescent aerogel for simultaneous Hg(II) sensing and removal via conveniently cross-linking two nanomaterials cellulose nanocrystals and bovine serum albumin-functionalized gold nanoclusters (BSA-AuNCs) with epichlorohydrin. The aerogel exhibited strong homogeneous red fluorescence at the non-edged regions under UV light due to highly dispersed BSA-AuNCs in it, and its fluorescence could be quenched by Hg(II). Through taking pictures with a smartphone, Hg(II) in the range of 0-1000 μg/L could be quantified with a detection limit of 12.7 μg/L. The sorption isotherm of Hg(II) by the aerogel followed Freundlich model with an equation of Qe = 0.329*Ce1/0.971 and a coefficient of 0.999. The maximum sorption capacity can achieve 483.21 mg/g for Hg(II), much higher than many reported sorbents. The results further confirmed Hg(II) strong sorption and sensitive detection are due to its complexation and redox reaction with the chemical groups in aerogels and its strong fluorescence quenching effect. Due to extensive sources and low cost, cellulose is potential to be developed into aerogels with multiple functions for sophisticated applications.
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Affiliation(s)
- Chenzhan Peng
- National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha, 410004, China; Hunan Province Key Laboratory of Edible forestry Resources Safety and Processing Utilization, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Tiantian Long
- National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha, 410004, China; Hunan Province Key Laboratory of Edible forestry Resources Safety and Processing Utilization, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Shan Luo
- National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha, 410004, China; Hunan Province Key Laboratory of Edible forestry Resources Safety and Processing Utilization, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Min Ouyang
- National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha, 410004, China; Hunan Province Key Laboratory of Edible forestry Resources Safety and Processing Utilization, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Hongmei Luo
- National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha, 410004, China; Hunan Province Key Laboratory of Edible forestry Resources Safety and Processing Utilization, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Dong Xu
- National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha, 410004, China; Hunan Province Key Laboratory of Edible forestry Resources Safety and Processing Utilization, Central South University of Forestry and Technology, Changsha, 410004, China.
| | - Qinlu Lin
- National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha, 410004, China
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Pan Z, Yu S, Wang L, Li C, Meng F, Wang N, Zhou S, Xiong Y, Wang Z, Wu Y, Liu X, Fang B, Zhang Y. Recent Advances in Porous Carbon Materials as Electrodes for Supercapacitors. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13111744. [PMID: 37299646 DOI: 10.3390/nano13111744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/13/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023]
Abstract
Porous carbon materials have demonstrated exceptional performance in various energy and environment-related applications. Recently, research on supercapacitors has been steadily increasing, and porous carbon materials have emerged as the most significant electrode material for supercapacitors. Nonetheless, the high cost and potential for environmental pollution associated with the preparation process of porous carbon materials remain significant issues. This paper presents an overview of common methods for preparing porous carbon materials, including the carbon-activation method, hard-templating method, soft-templating method, sacrificial-templating method, and self-templating method. Additionally, we also review several emerging methods for the preparation of porous carbon materials, such as copolymer pyrolysis, carbohydrate self-activation, and laser scribing. We then categorise porous carbons based on their pore sizes and the presence or absence of heteroatom doping. Finally, we provide an overview of recent applications of porous carbon materials as electrodes for supercapacitors.
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Affiliation(s)
- Zhengdao Pan
- School of Energy Sciences and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Sheng Yu
- Department of Chemistry, Washington State University, Pullman, Washington, DC 99164, USA
| | - Linfang Wang
- School of Energy Sciences and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Chenyu Li
- School of Energy Sciences and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Fei Meng
- School of Energy Sciences and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Nan Wang
- School of Energy Sciences and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Shouxin Zhou
- School of Energy Sciences and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Ye Xiong
- Kucap Smart Technology (Nanjing) Co., Ltd., Nanjing 211106, China
| | - Zhoulu Wang
- School of Energy Sciences and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yutong Wu
- School of Energy Sciences and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Xiang Liu
- School of Energy Sciences and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Baizeng Fang
- Department of Energy Storage Science and Technology, University of Science and Technology Beijing, 30 College Road, Beijing 100083, China
| | - Yi Zhang
- School of Energy Sciences and Engineering, Nanjing Tech University, Nanjing 211816, China
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Waste Biomass Based Carbon Aerogels Prepared by Hydrothermal-carbonization and Their Ethanol Cracking Performance for H2 Production. Processes (Basel) 2023. [DOI: 10.3390/pr11030892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023] Open
Abstract
Biomass occupies a significant proportion of municipal solid waste. For the high-value processing of waste biomass, a hydrothermal-carbonization method was chosen because of the advantages of effective and mild conditions. Four typical types of waste biomass (banana peel, mangosteen peel, orange peel, and pomelo peel) were used in this work to prepare high-value carbon aerogels (CA) via hydrothermal-carbonization treatment for cracking ethanol. Four kinds of CA all had good performances in the ethanol cracking reaction and improved the yield of H2 from 21 wt% to about 40 wt%. The banana peel-based carbon aerogel (BPCA) showed the best performance in the reaction; it cracked ethanol and obtained 41.86 wt% of H2. The mechanism of ethanol cracking by CA was revealed: On one hand, the self-cracking of ethanol was improved due to the extension of residence time, which benefited from the abundant pores in CA. On the other hand, the heterogeneous reaction occurred on the surface of CA where the inorganic components, mainly Ca, Mg, and K, can promote the bond-breaking and reorganization in ethanol. The CO2 in byproducts was also fixed by Ca and Mg, improving the positive cracking reaction.
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Yao C, Qin Y, Li Y, An Q, Xiao Z, Wang C, Zhai S. Activation of peroxymonosulfate by cobalt-embedded carbon aerogels: preparation and singlet oxygen-dominated catalytic degradation insight. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Liu G, Hou F, Wang X, Fang B. Robust Porous TiN Layer for Improved Oxygen Evolution Reaction Performance. MATERIALS (BASEL, SWITZERLAND) 2022; 15:ma15217602. [PMID: 36363193 PMCID: PMC9653776 DOI: 10.3390/ma15217602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 10/19/2022] [Accepted: 10/27/2022] [Indexed: 05/07/2023]
Abstract
The poor reversibility and slow reaction kinetics of catalytic materials seriously hinder the industrialization process of proton exchange membrane (PEM) water electrolysis. It is necessary to develop high-performance and low-cost electrocatalysts to reduce the loss of reaction kinetics. In this study, a novel catalyst support featured with porous surface structure and good electronic conductivity was successfully prepared by surface modification via a thermal nitriding method under ammonia atmosphere. The morphology and composition characterization-confirmed that a TiN layer with granular porous structure and internal pore-like defects was established on the Ti sheet. Meanwhile, the conductivity measurements showed that the in-plane electronic conductivity of the as-developed material increased significantly to 120.8 S cm−1. After IrOx was loaded on the prepared TiN-Ti support, better dispersion of the active phase IrOx, lower ohmic resistance, and faster charge transfer resistance were verified, and accordingly, more accessible catalytic active sites on the catalytic interface were developed as revealed by the electrochemical characterizations. Compared with the IrOx/Ti, the as-obtained IrOx/TiN-Ti catalyst demonstrated remarkable electrocatalytic activity (η10 mA cm−2 = 302 mV) and superior stability (overpotential degradation rate: 0.067 mV h−1) probably due to the enhanced mass adsorption and transport, good dispersion of the supported active phase IrOx, increased electronic conductivity and improved corrosion resistance provided by the TiN-Ti support.
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Affiliation(s)
- Gaoyang Liu
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
- Correspondence: (G.L.); (B.F.)
| | - Faguo Hou
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Xindong Wang
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Baizeng Fang
- Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada
- Correspondence: (G.L.); (B.F.)
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Liu G, Hou F, Wang X, Fang B. Stainless Steel-Supported Amorphous Nickel Phosphide/Nickel as an Electrocatalyst for Hydrogen Evolution Reaction. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3328. [PMID: 36234456 PMCID: PMC9565715 DOI: 10.3390/nano12193328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 09/21/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
Recently, nickel phosphides (Ni-P) in an amorphous state have emerged as potential catalysts with high intrinsic activity and excellent electrochemical stability for hydrogen evolution reactions (HER). However, it still lacks a good strategy to prepare amorphous Ni-P with rich surface defects or structural boundaries, and it is also hard to construct a porous Ni-P layer with favorable electron transport and gas-liquid transport. Herein, an integrated porous electrode consisting of amorphous Ni-P and a Ni interlayer was successfully constructed on a 316L stainless steel felt (denoted as Ni-P/Ni-316L). The results demonstrated that the pH of the plating solution significantly affected the grain size, pore size and distribution, and roughness of the cell-like particle surface of the amorphous Ni-P layer. The Ni-P/Ni-316L prepared at pH = 3 presented the richest surface defects or structural boundaries as well as porous structure. As expected, the as-developed Ni-P/Ni-316L demonstrated the best kinetics, with η10 of 73 mV and a Tafel slope of ca. 52 mV dec-1 for the HER among all the electrocatalysts prepared at various pH values. Furthermore, the Ni-P/Ni-316L exhibited comparable electrocatalytic HER performance and better durability than the commercial Pt (20 wt%)/C in a real water electrolysis cell, indicating that the non-precious metal-based Ni-P/Ni-316L is promising for large-scale processing and practical use.
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Affiliation(s)
- Gaoyang Liu
- Department of Energy Storage Science and Technology, University of Science and Technology Beijing, 30 College Road, Beijing 100083, China
- Department of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, 30 College Road, Beijing 100083, China
| | - Faguo Hou
- Department of Energy Storage Science and Technology, University of Science and Technology Beijing, 30 College Road, Beijing 100083, China
- Department of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, 30 College Road, Beijing 100083, China
| | - Xindong Wang
- Department of Energy Storage Science and Technology, University of Science and Technology Beijing, 30 College Road, Beijing 100083, China
- Department of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, 30 College Road, Beijing 100083, China
| | - Baizeng Fang
- Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada
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Zhang L, Lei Y, He P, Wu H, Guo L, Wei G. Carbon Material-Based Aerogels for Gas Adsorption: Fabrication, Structure Design, Functional Tailoring, and Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3172. [PMID: 36144967 PMCID: PMC9504413 DOI: 10.3390/nano12183172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/02/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
Carbon material-based aerogels (CMBAs) have three-dimensional porous structure, high specific surface area, low density, high thermal stability, good electric conductivity, and abundant surface-active sites, and, therefore, have shown great application potential in energy storage, environmental remediation, electrochemical catalysis, biomedicine, analytical science, electronic devices, and others. In this work, we present recent progress on the fabrication, structural design, functional tailoring, and gas adsorption applications of CMBAs, which are prepared by precursor materials, such as polymer-derived carbon, carbon nanotubes, carbon nanofibers, graphene, graphene-like carbides, fullerenes, and carbon dots. To achieve this aim, first we introduce the fabrication methods of various aerogels, and, then, discuss the strategies for regulating the structures of CMBAs by adjusting the porosity and periodicity. In addition, the hybridization of CMBAs with other nanomaterials for enhanced properties and functions is demonstrated and discussed through presenting the synthesis processes of various CMBAs. After that, the adsorption performances and mechanisms of functional CMBAs towards CO2, CO, H2S, H2, and organic gases are analyzed in detail. Finally, we provide our own viewpoints on the possible development directions and prospects of this promising research topic. We believe this work is valuable for readers to understand the synthesis methods and functional tailoring of CMBAs, and, meanwhile, to promote the applications of CMBAs in environmental analysis and safety monitoring of harmful gases.
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Affiliation(s)
- Lianming Zhang
- Engineering Research Center of Green Process, School of Resources and Environmental Engineering, Shandong Agriculture and Engineering University, Jinan 250100, China
| | - Yu Lei
- Institute of Biomedical Engineering, College of Life Science, Qingdao University, Qingdao 266071, China
| | - Peng He
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Hao Wu
- Institute of Biomedical Engineering, College of Life Science, Qingdao University, Qingdao 266071, China
| | - Lei Guo
- Institute of Biomedical Engineering, College of Life Science, Qingdao University, Qingdao 266071, China
| | - Gang Wei
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
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Lin S, Tang J, Zhang W, Zhang K, Chen Y, Gao R, Yin H, Yu X, Qin LC. Facile preparation of flexible binder-free graphene electrodes for high-performance supercapacitors. RSC Adv 2022; 12:12590-12599. [PMID: 35480379 PMCID: PMC9039804 DOI: 10.1039/d2ra01658c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 04/14/2022] [Indexed: 11/21/2022] Open
Abstract
A facile two-step strategy to prepare flexible graphene electrodes has been developed for supercapacitors using thermal reduction of graphene oxide (GO) and thermally reduced graphene oxide (TRGO) composite films. The tunable porous structure of the GO/TRGO film provided channels to release the high pressure generated by CO2 gas. The graphene electrode obtained from reduced-GO/TRGO (1 : 1 in mass ratio) film showed great flexibility and high film density (0.52 g cm−3). Using the EMI-BF4 electrolyte with a working voltage of 3.7 V, the as-fabricated free-standing reduced-GO/TRGO (1 : 1) film achieved a great gravimetric capacitance of 180 F g−1 (delivering a gravimetric energy density of 85.6 W h kg−1), a volumetric capacitance of 94 F cm−3 (delivering a volumetric energy density of 44.7 W h L−1), and a 92% retention after 10 000 charge/discharge cycles. In addition, the solid state flexible supercapacitor with the free-standing reduced-GO/TRGO (1 : 1) film as the electrodes and the EMI-BF4/poly (vinylidene fluoride hexafluopropylene) (PVDF-HFP) gel as the electrolyte also demonstrated a high gravimetric capacitance of 146 F g−1 with excellent mechanical flexibility, bending stability, and electrochemical stability. The strategy developed in this study provides great potentials for the synthesis of flexible graphene electrodes for supercapacitors. A supercapacitor electrode is developed with a free-standing graphene film by a facile two-step strategy. The graphene electrode achieved a gravimetric capacitance of 180 F g−1 and a volumetric capacitance of 94 F cm−3.![]()
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Affiliation(s)
- Shiqi Lin
- National Institute for Materials Science 1-2-1 Sengen Tsukuba Ibaraki 305-0047 Japan .,University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305-0006 Japan
| | - Jie Tang
- National Institute for Materials Science 1-2-1 Sengen Tsukuba Ibaraki 305-0047 Japan .,University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305-0006 Japan
| | - Wanli Zhang
- National Institute for Materials Science 1-2-1 Sengen Tsukuba Ibaraki 305-0047 Japan .,University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305-0006 Japan
| | - Kun Zhang
- National Institute for Materials Science 1-2-1 Sengen Tsukuba Ibaraki 305-0047 Japan
| | - Youhu Chen
- National Institute for Materials Science 1-2-1 Sengen Tsukuba Ibaraki 305-0047 Japan
| | - Runsheng Gao
- National Institute for Materials Science 1-2-1 Sengen Tsukuba Ibaraki 305-0047 Japan
| | - Hang Yin
- National Institute for Materials Science 1-2-1 Sengen Tsukuba Ibaraki 305-0047 Japan .,University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305-0006 Japan
| | - Xiaoliang Yu
- National Institute for Materials Science 1-2-1 Sengen Tsukuba Ibaraki 305-0047 Japan
| | - Lu-Chang Qin
- Department of Physics and Astronomy, University of North Carolina at Chapel Hill Chapel Hill NC 27599-3255 USA
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Aghazadeh M, Rad HF, Cheraghali R. Ready-to-use binder-free Co(OH) 2 plates@porous rGO layers/Ni foam electrode for high-performance supercapacitors. RSC Adv 2022; 12:9276-9291. [PMID: 35424885 PMCID: PMC8985096 DOI: 10.1039/d1ra08683a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 02/23/2022] [Indexed: 01/07/2023] Open
Abstract
In this work, an outstanding nano-structured composite electrode is fabricated through the co-deposition of Co(OH)2 nanoplates and porous reduced GO (p-rGO) nanosheets onto Ni foam (NF). Through field emission scanning electron microscopy and transmission electron microscopy observations, it was confirmed that porous reduced graphene oxide sheets are completely wrapped by uniform hexagonal Co(OH)2 plates. Due to the unique architecture of both components of the prepared composite, a high surface area of 234.7 m2 g−1 and mean pore size of 3.65 nm were observed for the Co(OH)2@p-rGO composite. The constructed Co(OH)2@p-rGO/NF composite electrode shows higher energy storage capability compared to that of Co(OH)2/NF and p-rGO/NF electrodes. The Co(OH)2/NF electrode shows specific capacitances of 902 and 311 F g–1 at 5 and 30 A g–1, while the Co(OH)2@p-rGO/NF electrode delivers 1688 and 1355 F g–1 under the same current loads, respectively. Furthermore, when the current load was increased from 1 to 30 A g–1, 74.5% capacitance retention was observed for the Co(OH)2@p-rGO/NF electrode, indicating its outstanding high-power capability, while the Co(OH)2/NF electrode retained only 38.5% of its initial capacitance. The fabricated Co(OH)2@p-rGO/NF//rGO/NF ASC device shows an areal capacitance of 3.29 F cm−2, cycling retention of 91.2% after 4500 cycles at 5 A g−1 and energy density of 68.7 W h kg−1 at a power density of 895 W kg−1. The results of electrochemical tests prove that Co(OH)2@p-rGO/NF exhibits good performance as a positive electrode for use in an asymmetric supercapacitor device. The prepared porous composite electrode is thus a promising candidate for use in supercapacitor applications. Fabrication mechanism of a ready-to-use Co(OH)2@p-rGO/NF electrode: (a) base generation step, (b) electrophoretic deposition of rGO onto NF and (c) chemical formation of Co(OH)2 on rGO.![]()
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Affiliation(s)
- Mustafa Aghazadeh
- Nuclear Fuel Research School, Nuclear Science and Technology Research Institute (NSTRI) Tehran Iran
| | - Hamzeh Forati Rad
- Nuclear Fuel Research School, Nuclear Science and Technology Research Institute (NSTRI) Tehran Iran
| | - Ramin Cheraghali
- Department of Chemistry, Islamic Azad University Saveh Branch Saveh Iran
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Yu Y, Wang X, Zhang H, Cao Z, Wu H, Jia B, Yang JJ, Qu X, Qin M. Large-scale synthesis of ultrafine Fe 3C nanoparticles embedded in mesoporous carbon nanosheets for high-rate lithium storage. RSC Adv 2022; 12:6508-6514. [PMID: 35424622 PMCID: PMC8981923 DOI: 10.1039/d1ra08516f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 03/31/2022] [Accepted: 01/27/2022] [Indexed: 11/21/2022] Open
Abstract
Fe3C modified by the incorporation of carbon materials offers excellent electrical conductivity and interfacial lithium storage, making it attractive as an anode material in lithium-ion batteries. In this work, we describe a time- and energy-saving approach for the large-scale preparation of Fe3C nanoparticles embedded in mesoporous carbon nanosheets (Fe3C-NPs@MCNSs) by solution combustion synthesis and subsequent carbothermal reduction. Fe3C nanoparticles with a diameter of ∼5 nm were highly crystallized and compactly dispersed in mesoporous carbon nanosheets with a pore-size distribution of 3–5 nm. Fe3C-NPs@MCNSs exhibited remarkable high-rate lithium storage performance with discharge specific capacities of 731, 647, 481, 402 and 363 mA h g−1 at current densities of 0.1, 1, 2, 5 and 10 A g−1, respectively, and when the current density reduced back to 0.1 A g−1 after 45 cycles, the discharge specific capacity could perfectly recover to 737 mA h g−1 without any loss. The unique structure could promote electron and Li-ion transfer, create highly accessible multi-channel reaction sites and buffer volume variation for enhanced cycling and good high-rate lithium storage performance. Fe3C modified by the incorporation of carbon materials offers excellent electrical conductivity and interfacial lithium storage, making it attractive as an anode material in lithium-ion batteries.![]()
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Affiliation(s)
- Ying Yu
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China
- China United Test & Certification Co., Ltd, China
- GRINM Group Corporation Limited, China
| | - Xuanli Wang
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China
| | - Hongkun Zhang
- China United Test & Certification Co., Ltd, China
- GRINM Group Corporation Limited, China
| | - Zhiqin Cao
- College of Vanadium and Titanium, Panzhihua University, Panzhihua 617000, China
| | - Haoyang Wu
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China
| | - Baorui Jia
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China
| | - Jun Jun Yang
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China
| | - Xuanhui Qu
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China
- Beijing Advanced Innovation Center of Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Mingli Qin
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China
- Beijing Advanced Innovation Center of Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China
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Huang Y, Wang Z, Shen S, Huang L, Zhong W, Pan J, Li C. Double-wall carbon nanotube assisted phase engineering in CoO xS y complex for efficient oxygen evolution reaction. CrystEngComm 2022. [DOI: 10.1039/d2ce00660j] [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
Sluggish electron kinetics in oxygen evolution reaction (OER) is one of the main factors restricting the development of hydrogen production technology from electrical water splitting, while the key to break...
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12
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Shang Y, Lu S, Zheng W, Wang R, Liang Z, Huang Y, Mei J, Yang Y, Zeng W, Zhan H. Facile synthesis of carbon and oxygen vacancy co-modified TiNb 6O 17 as an anode material for lithium-ion batteries. RSC Adv 2022; 12:13127-13134. [PMID: 35497001 PMCID: PMC9053084 DOI: 10.1039/d2ra01757a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 04/15/2022] [Indexed: 11/21/2022] Open
Abstract
Titanium niobium oxides (TNOs), benefitting from their large specific capacity and Wadsley–Roth shear structure, are competitive anode materials for high-energy density and high-rate lithium-ion batteries. Herein, carbon and oxygen vacancy co-modified TiNb6O17 (A-TNO) was synthesized through a facile sol–gel reaction with subsequent heat treatment and ball-milling. Characterizations indicated that A-TNO is composed of nanosized primary particles, and the carbon content is about 0.7 wt%. The nanoparticles increase the contact area of the electrode and electrolyte and shorten the lithium-ion diffusion distance. The carbon and oxygen vacancies decrease the charge transfer resistance and enhance the Li-ion diffusion coefficient of the obtained anode material. As a result of these advantages, A-TNO exhibits excellent rate performance (208 and 177 mA h g−1 at 10C and 20C, respectively). This work reveals that A-TNO possesses good electrochemical performance and has a facile preparation process, thus A-TNO is believed to be a potential anode material for large-scale applications. Carbon and oxygen vacancy co-modified TiNb6O17 is synthesized through a facile sol–gel reaction. It possesses good electrochemical performance, thus is believed to be a potential anode material for large-scale applications.![]()
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Affiliation(s)
- Yunfan Shang
- Chengdu Development Center of Science and Technology, China Academy of Engineering Physics, Chengdu 610200, China
| | - Suyang Lu
- Chengdu Development Center of Science and Technology, China Academy of Engineering Physics, Chengdu 610200, China
| | - Wei Zheng
- Sichuan Global Creatives Corporation Battery Material CO., LTD, Meishan 620000, China
| | - Rui Wang
- Sichuan Global Creatives Corporation Battery Material CO., LTD, Meishan 620000, China
| | - Zi Liang
- Sichuan Global Creatives Corporation Battery Material CO., LTD, Meishan 620000, China
| | - Yushuo Huang
- Chengdu Development Center of Science and Technology, China Academy of Engineering Physics, Chengdu 610200, China
| | - Jun Mei
- Chengdu Development Center of Science and Technology, China Academy of Engineering Physics, Chengdu 610200, China
| | - Ye Yang
- Chengdu Development Center of Science and Technology, China Academy of Engineering Physics, Chengdu 610200, China
| | - Wenwen Zeng
- Chengdu Development Center of Science and Technology, China Academy of Engineering Physics, Chengdu 610200, China
| | - Haoran Zhan
- Chengdu Development Center of Science and Technology, China Academy of Engineering Physics, Chengdu 610200, China
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13
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Mi Z, Hu D, Lin J, Pan H, Chen Z, Li Y, Liu Q, Zhu S. Anchoring nanoarchitectonics of 1T’-MoS2 nanoflakes on holey graphene sheets for lithium-ion batteries with outstanding high-rate performance. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2021.139711] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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Liu G, Yang Z, Wang X, Fang B. Ordered Porous TiO 2@C Layer as an Electrocatalyst Support for Improved Stability in PEMFCs. NANOMATERIALS 2021; 11:nano11123462. [PMID: 34947811 PMCID: PMC8707524 DOI: 10.3390/nano11123462] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/15/2021] [Accepted: 12/17/2021] [Indexed: 11/21/2022]
Abstract
Proton exchange membrane fuel cells (PEMFCs) are the most promising clean energy source in the 21st century. In order to achieve a high power density, electrocatalytic performance, and electrochemical stability, an ordered array structure membrane electrode is highly desired. In this paper, a new porous Pt-TiO2@C ordered integrated electrode was prepared and applied to the cathode of a PEMFC. The utilization of the TiO2@C support can significantly decrease the loss of catalyst caused by the oxidation of the carbon from the conventional carbon layer due to the strong interaction of TiO2 and C. Furthermore, the thin carbon layer coated on TiO2 provides the rich active sites for the Pt growth, and the ordered support and catalyst structure reduces the mass transport resistance and improves the stability of the electrode. Due to its unique structural characteristics, the ordered porous Pt-TiO2@C array structure shows an excellent catalytic activity and improved Pt utilization. In addition, the as-developed porous ordered structure exhibits superior stability after 3000 cycles of accelerated durability test, which reveals an electrochemical surface area decay of less than 30%, considerably lower than that (i.e., 80%) observed for the commercial Pt/C.
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Affiliation(s)
- Gaoyang Liu
- Department of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, 30 College Road, Beijing 100083, China; (Z.Y.); (X.W.)
- Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, University of Science and Technology Beijing, 30 College Road, Beijing 100083, China
- Correspondence: (G.L.); (B.F.)
| | - Zhaoyi Yang
- Department of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, 30 College Road, Beijing 100083, China; (Z.Y.); (X.W.)
- Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, University of Science and Technology Beijing, 30 College Road, Beijing 100083, China
| | - Xindong Wang
- Department of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, 30 College Road, Beijing 100083, China; (Z.Y.); (X.W.)
- Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, University of Science and Technology Beijing, 30 College Road, Beijing 100083, China
| | - Baizeng Fang
- Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada
- Correspondence: (G.L.); (B.F.)
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15
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Chen D, Zhang Y, Wang D, Wang W, Xu Y, Qian G. Al‐Incorporated Mesoporous Silica Supported ZnFe
2
O
4
for Photocatalytic Hydrogen Evolution. ChemistrySelect 2021. [DOI: 10.1002/slct.202102163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Dan Chen
- School of Environmental and Chemical Engineering Shanghai University No. 99 Shangda Road Shanghai 200444 China
| | - Yingying Zhang
- School of Environmental and Chemical Engineering Shanghai University No. 99 Shangda Road Shanghai 200444 China
| | - Daoyuan Wang
- School of Environmental and Chemical Engineering Shanghai University No. 99 Shangda Road Shanghai 200444 China
| | - Weide Wang
- Department of Marine Biochemistry Shandong Industrial Technical School No.6789, West Ring Road Weifang 261053 China
| | - Yao Xu
- School of Environmental and Chemical Engineering Shanghai University No. 99 Shangda Road Shanghai 200444 China
| | - Guangren Qian
- School of Environmental and Chemical Engineering Shanghai University No. 99 Shangda Road Shanghai 200444 China
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16
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Kweon Y, Noh S, Shim JH. Low content Ru-incorporated Pd nanowires for bifunctional electrocatalysis. RSC Adv 2021; 11:28775-28784. [PMID: 35478580 PMCID: PMC9038088 DOI: 10.1039/d1ra05577a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 08/17/2021] [Indexed: 01/17/2023] Open
Abstract
This paper reports the facile synthesis and characterization of carbon supported Pd nanowires with low Ru contents (nRuPd/C). An anti-galvanic replacement reaction involving the reduction of Ru(iii) ions by nanoporous Pd nanowires to form nRuPd alloy nanowires was observed. A series of nRuPd/C materials with various Ru/Pd ratios were prepared by the spontaneous deposition of a Ru cluster on a Pd nanowire core using different Ru precursor concentrations (RuCl3 = 0.5, 1.0, 5.0 mM). The successful formation of low content Ru-incorporated Pd nanowires without individual Ru clusters were confirmed using physicochemical characterization. The electrocatalytic activity of the nRuPd/C for the oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER) in alkaline media was measured by RDE polarization experiments. The electrocatalytic activity varied greatly depending on the Ru content on the Pd nanowires. Among the catalysts, the prepared Pd nanowires incorporated with a very small amount of Ru (ca. 1.4 wt%) exhibited excellent electrocatalytic activity toward the ORR and HER: positive ORR/HER onset and E1/2 potentials, higher n value, and lower Tafel slope. The catalytic activity of Pd nanowires with low Ru contents showed superior bifunctional electrocatalytic performance towards both ORR and HER compared to the benchmarking Pt/C.![]()
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Affiliation(s)
- Yongdeog Kweon
- Department of Chemistry, Institute of Basic Science, Daegu University Gyeongsan 38453 Republic of Korea
| | - Sunguk Noh
- Department of Chemistry, Institute of Basic Science, Daegu University Gyeongsan 38453 Republic of Korea
| | - Jun Ho Shim
- Department of Chemistry, Institute of Basic Science, Daegu University Gyeongsan 38453 Republic of Korea
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17
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Chen D, Xu Y, Zhang Y, Sheng W, Qian G. Nickel hydroxide as a non-noble metal co-catalyst decorated on Cd 0.5Zn 0.5S solid solution for enhanced hydrogen evolution. RSC Adv 2021; 11:20479-20485. [PMID: 35479893 PMCID: PMC9033972 DOI: 10.1039/d1ra03938e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 05/27/2021] [Indexed: 12/04/2022] Open
Abstract
The study of non-noble metal photocatalysts provides practical significance for hydrogen evolution applications. Herein, new Cd0.5Zn0.5S/Ni(OH)2 catalysts were fabricated through simple hydrothermal and precipitation methods. The photocatalytic performance of the Cd0.5Zn0.5S/Ni(OH)2 composites under visible light was significantly improved, which was attributed to the wider visible light absorption range and less recombination of electron–hole pairs. The composite with a Ni(OH)2 content of 10% showed the best hydrogen evolution rate of 46.6 mmol g−1 h−1, which was almost 9 times higher than that of pristine Cd0.5Zn0.5S. The severe photo-corrosion of Cd0.5Zn0.5S was greatly improved, and the Cd0.5Zn0.5S/Ni(OH)2 composite exhibited a very high hydrogen evolution rate after three repeated tests. The excellent photocatalytic performance was due to the non-noble metal Ni(OH)2 co-catalyst. The excited electrons were transferred to the co-catalyst, which reduced electron–hole recombination. Moreover, the co-catalyst offered more sites for photocatalytic reactions. This study researched the mechanism of a co-catalyst composite, providing new possibilities for non-noble metal photocatalysts. This study researched the mechanism of a co-catalyst composite, providing new possibilities for non-noble metal photocatalysts.![]()
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Affiliation(s)
- Dan Chen
- School of Environmental and Chemical Engineering, Shanghai University No. 99 Shangda Road Shanghai 200444 China
| | - Yao Xu
- School of Environmental and Chemical Engineering, Shanghai University No. 99 Shangda Road Shanghai 200444 China
| | - Yingying Zhang
- School of Environmental and Chemical Engineering, Shanghai University No. 99 Shangda Road Shanghai 200444 China
| | - Wenyu Sheng
- School of Environmental and Chemical Engineering, Shanghai University No. 99 Shangda Road Shanghai 200444 China
| | - Guangren Qian
- School of Environmental and Chemical Engineering, Shanghai University No. 99 Shangda Road Shanghai 200444 China
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18
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Peng X, Hou J, Mi Y, Sun J, Qi G, Qin Y, Zhang S, Qiu Y, Luo J, Liu X. Bifunctional single-atomic Mn sites for energy-efficient hydrogen production. NANOSCALE 2021; 13:4767-4773. [PMID: 33650623 DOI: 10.1039/d0nr09104a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The electrocatalytic hydrogen evolution reaction (HER) for H2 production is essential for future renewable and clean energy technology. Screening energy-saving, low-cost, and highly active catalysts efficiently, however, is still a grand challenge due to the sluggish kinetics of the oxygen evolution reaction (OER) in electrolyzing water. Herein, we present a single atomic Mn site anchored on a boron nitrogen co-doped carbon nanotube array (Mn-SA/BNC), which is perfectly combined with the hydrazine electrooxidation reaction (HzOR) boosted water electrolysis concept. The obtained catalyst achieves 51 mV overpotential at the current density of -10 mA cm-2 for the cathodic HER and 132 mV versus the reversible hydrogen electrode for HzOR, respectively. Besides, in a two-electrode overall hydrazine splitting (OHzS) system, the Mn-SA/BNC catalyst only needs a cell voltage of only 0.41 V to output 10 mA cm-1, with strong durability and nearly 100% faradaic efficiency for H2 production. This work highlights a low-cost and high-efficiency energy-saving H2 production pathway.
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Affiliation(s)
- Xianyun Peng
- Institute for New Energy Materials & Low-Carbon Technologies and Tianjin Key Lab for Photoelectric Materials & Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China.
| | - Junrong Hou
- Institute for New Energy Materials & Low-Carbon Technologies and Tianjin Key Lab for Photoelectric Materials & Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China.
| | - Yuying Mi
- Institute for New Energy Materials & Low-Carbon Technologies and Tianjin Key Lab for Photoelectric Materials & Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China.
| | - Jiaqiang Sun
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi, China
| | - Gaocan Qi
- Tianjin Key Lab for Photoelectric Materials & Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China.
| | - Yongji Qin
- Institute for New Energy Materials & Low-Carbon Technologies and Tianjin Key Lab for Photoelectric Materials & Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China.
| | - Shusheng Zhang
- College of Chemistry, Zhengzhou University, Zhengzhou 450000, China
| | - Yuan Qiu
- Institute for New Energy Materials & Low-Carbon Technologies and Tianjin Key Lab for Photoelectric Materials & Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China.
| | - Jun Luo
- Institute for New Energy Materials & Low-Carbon Technologies and Tianjin Key Lab for Photoelectric Materials & Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China.
| | - Xijun Liu
- Institute for New Energy Materials & Low-Carbon Technologies and Tianjin Key Lab for Photoelectric Materials & Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China. and Key Laboratory of Civil Aviation Thermal Hazards Prevention and Emergency Response, Civil Aviation University of China, Tianjin 300300, China
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19
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Lu L, Wang B, Wu D, Zou S, Fang B. Engineering porous Pd-Cu nanocrystals with tailored three-dimensional catalytic facets for highly efficient formic acid oxidation. NANOSCALE 2021; 13:3709-3722. [PMID: 33544114 DOI: 10.1039/d0nr09164b] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Rational synthesis of bi- or multi-metallic nanomaterials with both dendritic and porous features is appealing yet challenging. Herein, with the cubic Cu2O nanoparticles composed of ultrafine Cu2O nanocrystals as a self-template, a series of Pd-Cu nanocrystals with different morphologies (e.g., aggregates, porous nanodendrites, meshy nanochains and porous nanoboxes) are synthesized through simply regulating the molar ratio of the Pd precursor to the cubic Cu2O, indicating that the galvanic replacement and Kirkendall effect across the alloying process are well controlled. Among the as-developed various Pd-Cu nanocrystals, the porous nanodendrites with both dendritic and hollow features show superior electrocatalytic activity toward formic acid oxidation. Comprehensive characterizations including three-dimensional simulated reconstruction of a single particle and high-resolution transmission electron microscopy reveal that the surface steps, defects, three-dimensional architecture, and the electronic/strain effects between Cu and Pd are responsible for the outstanding catalytic activity and excellent stability of the Pd-Cu porous nanodendrites.
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Affiliation(s)
- Linfang Lu
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Bing Wang
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Di Wu
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Shihui Zou
- Key Lab of Applied Chemistry of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310027, China.
| | - Baizeng Fang
- Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, BC V6 T 1Z3, Canada.
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20
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Li YW, Wu Q, Ma RC, Sun XQ, Li DD, Du HM, Ma HY, Li DC, Wang SN, Dou JM. A Co-MOF-derived Co 9S 8@NS-C electrocatalyst for efficient hydrogen evolution reaction. RSC Adv 2021; 11:5947-5957. [PMID: 35423155 PMCID: PMC8694845 DOI: 10.1039/d0ra10864b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Accepted: 01/15/2021] [Indexed: 12/12/2022] Open
Abstract
The exploitation of efficient hydrogen evolution reaction (HER) electrocatalysts has become increasingly urgent and imperative; however, it is also challenging for high-performance sustainable clean energy applications. Herein, novel Co9S8 nanoparticles embedded in a porous N,S-dual doped carbon composite (abbr. Co9S8@NS-C-900) were fabricated by the pyrolysis of a single crystal Co-MOF assisted with thiourea. Due to the synergistic benefit of combining Co9S8 nanoparticles with N,S-dual doped carbon, the composite showed efficient HER electrocatalytic activities and long-term durability in an alkaline solution. It shows a small overpotential of -86.4 mV at a current density of 10.0 mA cm-2, a small Tafel slope of 81.1 mV dec-1, and a large exchange current density (J 0) of 0.40 mA cm-2, which are comparable to those of Pt/C. More importantly, due to the protection of Co9S8 nanoparticles by the N,S-dual doped carbon shell, the Co9S8@NS-C-900 catalyst displays excellent long-term durability. There is almost no decay in HER activities after 1000 potential cycles or it retains 99.5% of the initial current after 48 h.
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Affiliation(s)
- Yun-Wu Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University Liaocheng 252000 P. R. China
| | - Qian Wu
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University Liaocheng 252000 P. R. China
| | - Rui-Cong Ma
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University Liaocheng 252000 P. R. China
| | - Xiao-Qi Sun
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University Liaocheng 252000 P. R. China
| | - Dan-Dan Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University Liaocheng 252000 P. R. China
| | - Hong-Mei Du
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University Liaocheng 252000 P. R. China
| | - Hui-Yan Ma
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University Liaocheng 252000 P. R. China
| | - Da-Cheng Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University Liaocheng 252000 P. R. China
| | - Su-Na Wang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University Liaocheng 252000 P. R. China
| | - Jian-Min Dou
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University Liaocheng 252000 P. R. China
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21
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Pan J, Zhang W, Xu X, Hu J. The mechanism of enhanced photocatalytic activity for water-splitting of ReS 2 by strain and electric field engineering. RSC Adv 2021; 11:23055-23063. [PMID: 35480430 PMCID: PMC9034362 DOI: 10.1039/d1ra03821d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Accepted: 06/16/2021] [Indexed: 11/24/2022] Open
Abstract
To enhance the photocatalytic water splitting performance of 2D ReS2, we theoretically propose a feasible strategy to engineer its band structure by applying strain or an electric field. Our calculated results show that the strains greatly tune the electronic structure of ReS2 especially band gap and band edge positions, because the strains significantly alter the crystal structure and then cause rearrangement of the surface charge. However, electric fields have little influence on band gap but obviously affect the band edge positions. This is because the electric fields have little effect on the crystal structure of ReS2 but easily produce an in-plane electric dipole moment. The shifts in band edge position mainly arise from competition between the surface charge and the in-plane electric dipole. For an applied strain, the shifts are dominated by rearrangement of surface charge; for an applied electric field, the shifts are determined by an induced electric dipole moment. Importantly, functionalized ReS2 with a bi-axial strain of −4% or an electronic field of −0.1 V Å−1 may be good candidates for water-splitting photocatalysts owing to their suitable band edge positions for water splitting, ideal band gaps, good stability, reduced electron–hole recombination and high carrier mobility. We hope our findings will stimulate experimental efforts to develop new photocatalysts based on functionalized ReS2. This work proposes applying the strain and electric filed to engineer the band structure of 2D ReS2 and enhance its photocatalytic activity for hydrogen production through water-splitting.![]()
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Affiliation(s)
- Jing Pan
- College of Physics Science and Technology
- Yangzhou University
- Yangzhou
- China
| | - Wannian Zhang
- College of Physics Science and Technology
- Yangzhou University
- Yangzhou
- China
| | - Xiaoyong Xu
- College of Physics Science and Technology
- Yangzhou University
- Yangzhou
- China
| | - Jingguo Hu
- College of Physics Science and Technology
- Yangzhou University
- Yangzhou
- China
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22
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Yang Z, Chen M, Fang B, Liu G. Ordered SnO 2@C Flake Array as Catalyst Support for Improved Electrocatalytic Activity and Cathode Durability in PEMFCs. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2412. [PMID: 33276659 PMCID: PMC7761613 DOI: 10.3390/nano10122412] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 11/26/2020] [Accepted: 11/30/2020] [Indexed: 01/16/2023]
Abstract
Pt-SnO2@C-ordered flake array was developed on carbon paper (CP) as an integrated cathode for proton exchange membrane fuel cell through a facile hydrothermal method. In the integrated cathode, Pt nanoparticles were deposited uniformly with a small particle size on the SnO2@C/CP support. Electrochemical impedance spectroscopy analysis revealed lower impedance in a potential range of 0.3-0.5 V for the ordered electrode structure. An electrochemically active surface area and oxygen reduction peak potential determined by cyclic voltammetry measurement verified the synergistic effect between Pt and SnO2, which enhanced the electrochemical catalytic activity. Besides, compared with the commercial carbon-supported Pt catalyst, the as-developed SnO2@C/CP-supported Pt catalyst demonstrated better stability, most likely due to the positive interaction between SnO2 and the carbon coating layer.
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Affiliation(s)
- Zhaoyi Yang
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, 30 College Road, Beijing 100083, China; (Z.Y.); (M.C.)
- Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, University of Science and Technology Beijing, 30 College Road, Beijing 100083, China
| | - Ming Chen
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, 30 College Road, Beijing 100083, China; (Z.Y.); (M.C.)
- Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, University of Science and Technology Beijing, 30 College Road, Beijing 100083, China
| | - Baizeng Fang
- Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada
| | - Gaoyang Liu
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, 30 College Road, Beijing 100083, China; (Z.Y.); (M.C.)
- Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, University of Science and Technology Beijing, 30 College Road, Beijing 100083, China
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23
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Cai X, Li H, Guo X, Qiu F, Liu R, Zheng X. A facile synthesis of hierarchically porous carbon derived from serum albumin by a generated-templating method for efficient oxygen reduction reaction. RSC Adv 2020; 10:39589-39595. [PMID: 35515409 PMCID: PMC9057421 DOI: 10.1039/d0ra08061f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 10/15/2020] [Indexed: 11/21/2022] Open
Abstract
Hierarchically porous carbons (HPCs), with large specific surface area, abundant porous channels and adequate anchor points, act as one type of ideal carbon supports for the preparation of single-atom electrocatalysts. In this study, the blood plasma-derived HPC with an interconnected porous framework is constructed via a generated-template method, with the formation of ZnS nanoparticles from the abundant disulfide bonds (–S–S–) in serum albumin. After the thermal activation with heme-containing molecules (also from the bovine-blood biowaste), the HPC exhibits high-exposure and low-spin-state Fe(ii)–N4 atomic active sites, and thereby presents a superior oxygen reduction reaction activity (the half wave potential of 0.87 V) and excellent stability (a 4 mV negative shift after 3000 potential cycles), even comparable with the benchmark Pt/C. This work delivers a new insight into the design and synthesis of porous carbons and carbon-based electrocatalysts to develop bio-derived materials in the field of clean energy conversion and storage. A high-performance Fe–N–HPC electrocatalyst derived from bovine blood.![]()
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Affiliation(s)
- Xiaobin Cai
- Electric Power Research Institute of Yunnan Power Grid Co., Ltd
- Kunming
- P. R. China
| | - Hanyu Li
- Electric Power Research Institute of Yunnan Power Grid Co., Ltd
- Kunming
- P. R. China
| | - Xinliang Guo
- Electric Power Research Institute of Yunnan Power Grid Co., Ltd
- Kunming
- P. R. China
| | - Fangcheng Qiu
- Electric Power Research Institute of Yunnan Power Grid Co., Ltd
- Kunming
- P. R. China
| | - Ronghai Liu
- Electric Power Research Institute of Yunnan Power Grid Co., Ltd
- Kunming
- P. R. China
| | - Xin Zheng
- Electric Power Research Institute of Yunnan Power Grid Co., Ltd
- Kunming
- P. R. China
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