Article
Chemistry, Physical
Wenjin Liu, Shuxian Di, Fanghui Wang, Hong Zhu
Summary: A catalyst with an ionic liquid layer, fct-PtCo/C@ILs, was prepared by modifying the chemically ordered platinum-cobalt catalyst, fct-PtCo/C, using a hydrophobic ionic liquid, [BMIM] [TFSI], with high oxygen solubility. The modified catalyst showed significantly improved mass activity, specific activity, electrochemical durability, and power density compared to the commercial Pt/C catalyst. The addition of the ionic liquid reduced the generation of oxygenated species and promoted the release of catalytic active sites, resulting in the formation of a conductive layer that protected the catalyst surfaces from dissolution and corrosion.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Review
Chemistry, Multidisciplinary
Gui-Rong Zhang, Bastian J. M. Etzold
Summary: The concept of solid catalysts with ionic liquid layer (SCILL) offers a unique way to regulate catalytic activity and selectivity, and has been applied in the field of electrocatalysis for key energy storage/conversion processes.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Qiuyue Gao, Guoru Li, Gideon Kofie, Biaohua Chen, Fengxiang Yin
Summary: In this study, N,S,C co-doped carbon-encapsulated catalysts were used to enhance the catalytic activity of oxygen reduction reaction (ORR). The experimental results demonstrated that N,S co-doped carbon-coated Co(9)S(8) nanoparticles catalysts were obtained through high-temperature treatment. Among them, 600-ZIF-67-C(1:1.5)-30IL catalyst showed the best performance, with a half-wave potential of 0.88 V vs. RHE and a limiting current density of 4.70 mA cm(-2).
Article
Engineering, Environmental
Yu Liu, Jialong Zhang, Xingyu Lu, Gui-Rong Zhang, Ke Qi, Yunli Bai, Wei Qi
Summary: The electrocatalytic performance of acetylene black can be tailored by regulating the electrode-electrolyte interfacial structure using ionic liquid (IL) and surfactant. The presence of IL and surfactant can greatly increase the selectivity of hydrogen peroxide, showcasing the importance of rational design and regulation of the cathode-electrolyte interface for improving the oxygen reduction reaction (ORR) activity.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Green & Sustainable Science & Technology
S. Wan, Y. Li, L. Xu, W. Zhang, R. Cao
Summary: Different manganese oxides have been widely studied as catalysts for water oxidation, but the optimal structure for electrocatalytic water oxidation is still debated. By synthesizing autologous Mn oxides with similar physical properties and different phase structures, it was observed that Mn2O3 exhibited the best catalytic performance, which was attributed to the easy generation of Mn-III.
MATERIALS TODAY SUSTAINABILITY
(2022)
Article
Nanoscience & Nanotechnology
Neelam Gupta, Sayan Kanungo, Ravi Prakash Behere, Priti Singh, Sayan Kanungo, Mudit Dixit, Chanchal Chakraborty, Biplab Kumar Kuila
Summary: Conjugated polymer frameworks (CPFs) have shown great potential in various applications and have been studied for their electrocatalytic activity in oxygen evolution reaction (OER). In this study, two triazine-based CPFs with different side chains were developed, and CPF2 showed superior activity compared to CPF1. The presence of a more polar oxygen-containing ethylene glycol side chain in CPF2 enhanced surface hydrophilicity, ion/charge and mass transfer, and accessibility of the active sites.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Jiankang Liu, Tingting Zhang, Feng Ji, Zhongyi Liu, Zhiyuan Wang
Summary: In this study, a series of perovskite electrocatalysts with different deficiencies were synthesized and their catalytic activities for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in alkaline electrolytes were studied. It was found that there are two distinct oxygen reduction potential regions and the catalyst with the highest deficiency showed the highest activity. This work provides guidance for the further development of easily prepared and highly active perovskite metal oxides.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Zhongjie Yang, Yang Gao, Lulu Zuo, Chang Long, Caoyu Yang, Xiaofei Zhang
Summary: A diatomic hetero-cyclization strategy was employed to construct efficient 2e-ORR catalysts based on poly-benzimidazole, poly-benzoxazole, and poly-benzothiazole. The sulfuration of poly-benzothiazole resulted in higher H2O2 selectivity and electrochemical durability, achieving one of the highest values for PBXs as 2e-ORR catalysts.
Review
Chemistry, Physical
Juan Wang, Chang-Xin Zhao, Jia-Ning Liu, Yun-Wei Song, Jia-Qi Huang, Bo-Quan Li
Summary: This review systematically summarizes the current advances of dual-atom catalysts for ORR and OER electrocatalysis. The intrinsic advantages of dual-atom catalysts and the mechanisms focusing on the electronic structure of active sites are discussed. The structure-activity relationship is comprehensively discussed based on theoretical simulations and experimental results, providing a methodology for rational structural design. The current synthesis methods and performance comparison are presented, and future perspectives for the development of advanced dual-atom catalysts for ORR and OER electrocatalysis are highlighted.
Article
Chemistry, Multidisciplinary
Xianling Wu, Dumei Wang, Xueming Kang, Dongtang Zhang, Yong Yan, Guangsheng Guo, Zaicheng Sun, Xiayan Wang
Summary: The development of methanol-tolerant catalysts is essential for commercializing fuel cells. In this study, we reported a facile synthesis of graphene-supported Pt/Bi catalysts with high oxygen reduction activity and methanol poisoning tolerance. The catalyst showed great potential in the application of direct methanol fuel cells.
Review
Nanoscience & Nanotechnology
Amr Radwan, Huihui Jin, Daping He, Shichun Mu
Summary: The significant progress of MOFs-derived electrocatalysts in ORR, OER, and HER applications is mainly attributed to their high-porosity structure, large surface area, and abundant active centers.
NANO-MICRO LETTERS
(2021)
Article
Chemistry, Physical
Kumar Kashyap Hazarika, Yusuke Yamada, Ekaterina V. Matus, Mikhail Kerzhentsev, Pankaj Bharali
Summary: The transition metal oxide based electrocatalyst with mixed valence state exhibits high activity and stability, showing promising potential for oxygen electrocatalysis.
JOURNAL OF POWER SOURCES
(2021)
Review
Chemistry, Multidisciplinary
Zhen Zhang, Peizhi Liu, Yanhui Song, Ying Hou, Bingshe Xu, Ting Liao, Haixia Zhang, Junjie Guo, Ziqi Sun
Summary: This review summarizes the recent progress of 2D superlattice materials in electrocatalysis applications, focusing on the rational design and fabrication of 2D superlattices, as well as their specific applications in electrocatalysis. The challenges and strategies for the future design of 2D superlattice materials are also outlined.
Article
Chemistry, Physical
Da Huo, Fangfang Song, Jianguo Hu, Junhua Yuan, Li Niu, Ai-jun Wang
Summary: The study synthesized mesoporous carbon-coated nickel phosphide nanoparticles with excellent catalytic activity towards oxygen reduction and evolution reactions, showing high stability. This work provides a new avenue for the design of bifunctional catalysts with superior OER/ORR activity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Chemistry, Multidisciplinary
Bin Wu, Haibing Meng, Dulce M. Morales, Feng Zeng, Junjiang Zhu, Bao Wang, Marcel Risch, Zhichuan J. Xu, Tristan Petit
Summary: Nitrogen-doped carbons are a rapidly growing class of materials for oxygen electrocatalysis, offering low cost, environmental friendliness, excellent conductivity, and scalable synthesis. They have the potential to replace precious metal-based electrocatalysts and reduce costs in energy conversion and storage systems.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Thuan-Nguyen Pham-Truong, Qing Wang, Jalal Ghilane, Hyacinthe Randriamahazaka
Article
Chemistry, Multidisciplinary
Celia Belkessam, Selma Bencherif, Mourad Mechouet, Naima Idiri, Jalal Ghilane
Article
Electrochemistry
Thuan-Nguyen Pham-Truong, Hyacinthe Randriamahazaka, Jalal Ghilane
ELECTROCHIMICA ACTA
(2020)
Article
Materials Science, Multidisciplinary
Manh B. Nguyen, Dau Thi Ngoc Nga, Vu Thi Thu, Benoit Piro, Thuan Nguyen Pham Truong, Pham Thi Hai Yen, Giang H. Le, Le Quoc Hung, Tuan A. Vu, Vu Thi Thu Ha
Summary: A novel nanoscale metal-organic-framework material (Yb-MOF) was prepared using a hydrothermal approach under aqueous conditions, exhibiting a highly porous structure with a high specific active area. A sensing platform was constructed by drop-casting Yb-MOF onto a glassy carbon electrode for detecting heavy metal ion pollutants in water sources, showing promising detection limits for Cd2+ and Pb2+ species. This work provides a new electrochemical sensing platform for fast and sensitive in-situ detection of water contaminants.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Chemistry, Physical
Selma Bencherif, Mourad Mechouet, Jalal Ghilane
Summary: This study immobilized thin ionic layer onto glassy carbon and used it as a platform for the electrochemical growth of metallic nanoparticles. The presence of the ionic layer enhanced the catalytic performances of the investigated metallic nanoparticles, probably due to a synergistic effect between the grafted ionic layer and the metallic nanoparticles. The physico-chemical properties of the generated modified electrodes were studied by surfaces analysis and electrochemical methods.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Review
Chemistry, Multidisciplinary
Hao-Zheng Yu, Selma Bencherif, Thuan-Nguyen Pham-Truong, Jalal Ghilane
Summary: Ionic liquids (ILs) have drawn continuous attention due to their unique chemical and physical properties, and their successful integration in various applications. Recently, ILs have transitioned from being used solely as solvents to being immobilized onto surfaces, providing new properties to the interface. The flexible design of these new families allows for the transfer of some properties to the substrate, ultimately improving the electrocatalytic activity for the hydrogen evolution reaction (HER).
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Thuan-Nguyen Pham-Truong, Jalal Ghilane
Summary: This work investigated the localized electrochemical behavior of a redox molecule in an ionic liquid using scanning electrochemical microscopy. The electrochemical response of a ferrocenyl-imidazolium redox mediator was studied on a conducting and insulating substrate in an undiluted ionic liquid. The approach curves displayed different behaviors on the two substrates, with positive feedback on the conducting substrate and varying shapes on the insulating substrate depending on the approach speed. Thin film behavior was observed at very close distances between the UME and the insulating substrate.
Article
Electrochemistry
Thuan-Nguyen Pham-Truong, Hazar Guemiza, Hugo Lavilluniere, Cedric Vancaeyzeele, Pierre-Henri Aubert
Summary: Metal-organic frameworks (MOFs) based materials have gained attention for developing high-performing supercapacitors. In this study, Ni3(HITP)2 MOF was successfully synthesized as an ultra-stable thin film electrode. The presence of the active layer was confirmed through various techniques. The formation of the film within the diffusion layer improved the electrochemical accessible surface area and minimized the low electrical conductivity of MOF based materials. This approach also enhanced the cycling stability, with 100% capacitance retention over 170,000 cycles at 0.9 V.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Multidisciplinary
H. -Z. Yu, J. Ghilane
Summary: Surface modification using electrochemical-based approach is proposed to generate metallic particles-supported graphite rod (GR) for electrocatalysis. The electrocatalytic performances depend on various parameters, and Pt/Li-GR shows the best activity and stability for the hydrogen evolution reaction, while Pd/Li-GR exhibits higher performance compared to other reported Pd-based catalysts.
MATERIALS TODAY CHEMISTRY
(2022)
Review
Chemistry, Physical
Quentin Lenne, Zaynab Atyf, Jalal Ghilane
Summary: Immobilizing thin organic layers with specific functional groups onto materials is a key strategy for controlling properties and developing task-specific surfaces. Recent attention has been given to the combination of ionic liquids (ILs) and diazonium compounds to create organized interfaces. This review explores the grafting procedures of diazonium in IL, including electrochemical assisted grafting, and highlights the properties of the resulting layers and the advantages of using IL as a grafting medium.
CURRENT OPINION IN ELECTROCHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Minh Thu Vu, Thi Thanh Ngan Nguyen, Tran Quang Hung, Thuan-Nguyen Pham-Truong, Magdalena Osial, Philippe Decorse, Thi Thom Nguyen, Benoit Piro, Vu Thi Thu
Summary: This study investigates the effect of chemical functional groups (thiol and amine) on the morphology and catalytic activity of platinum nanoparticles for methanol oxidation. It is found that functionalized graphene oxide supports can achieve good dispersion of nanoparticles and enhance the durability of the catalysts.
Article
Chemistry, Multidisciplinary
Nguyen Tien Hoang, Pham Truong Thuan Nguyen, Pham Do Chung, Vu Thi Thu Ha, Tran Quang Hung, Pham Thi Nam, Vu Thi Thu
Summary: In this study, noble metal nanoparticles were uniformly dispersed on the electrode surface by electrochemically embedding a 4-ATP layer, leading to improved methanol oxidation reaction (MOR) and enabling detection of methanol.
