Ionic liquid modifying conductivity and hydrophobicity of B4C for enhanced electrosynthesis of H2O2

被引:0
作者
Fang, Wenjuan [1 ]
Cui, Xuejiao [1 ]
Wang, Yabing [1 ]
Li, Yuanan [1 ]
Xu, Na [1 ]
Zhang, Shijie [1 ]
Zhong, Haochong [1 ]
Bao, Zhikang [2 ]
Wang, Jianguo [1 ]
机构
[1] Zhejiang Univ Technol, Inst Ind Catalysis, Coll Chem Engn, State Key Lab Breeding Base Green Chem Synth Techn, Hangzhou 310032, Peoples R China
[2] Quzhou Univ, Coll Chem & Mat Engn, Quzhou 324000, Peoples R China
基金
中国国家自然科学基金;
关键词
Ionic liquid; B4C; Conductivity; Hydrophobicity; Hydrogen peroxide; OXYGEN REDUCTION REACTION; HYDROGEN-PEROXIDE; PERFORMANCE; ELECTROCATALYSTS; CATALYSTS;
D O I
10.1016/j.cej.2024.157961
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Electrosynthesis of hydrogen peroxide (H2O2) via two-electron oxygen reduction reaction (2e(-) ORR) is an attractive energy-efficient and decentralized alternative to the conventional anthraquinone process. However, designing non-precious metal catalysts with high activity, selectivity and stability is a great challenge. Here, we report a facile and effective approach to improve the catalytic performance of commercial boron carbide (B4C) by loading ionic liquid (IL), which exploits the complementary properties of high electrical conductivity and hydrophobicity of IL. The B4C catalyst with optimal IL loading possesses the highest conductivity and O-2 adsorption, exhibiting high H2O2 selectivity in both neutral (similar to 96 %) and alkaline (similar to 93 %) electrolyte, which are nearly similar to 34 % and similar to 19 % higher than pristine B4C, respectively. Moreover, its production rate is similar to 1.5 times that of pristine B4C at 130 mA cm(-2) current density, resulting in a high concentration of H2O2 (5.93 wt%) produced in flow-cell reactor. The long-term cycle test demonstrates the desirable stability of IL@B4C/GDE, which is attributed to the high hydrophobicity and tight bonding between IL@B4C and the substrate, giving a strong flood-proof capability at the three-phase interface and avoiding rapid flooding by the electrolyte. This work provides new insights into designing non-precious metal electrocatalysts for efficient electrosynthesis of H2O2, emphasizing the role of IL in interface engineering.
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页数:9
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共 52 条
  • [1] Designing Tailored Gas Diffusion Layers with Pore Size Gradients via Electrospinning for Polymer Electrolyte Membrane Fuel Cells
    Balakrishnan, Manojkumar
    Shrestha, Pranay
    Ge, Nan
    Lee, ChungHyuk
    Fahy, Kieran F.
    Zeis, Roswitha
    Schulz, Volker P.
    Hatton, Benjamin D.
    Bazylak, Aimy
    [J]. ACS APPLIED ENERGY MATERIALS, 2020, 3 (03): : 2695 - 2707
  • [2] Review of gas diffusion cathodes for alkaline fuel cells
    Bidault, F.
    Brett, D. J. L.
    Middleton, P. H.
    Brandon, N. P.
    [J]. JOURNAL OF POWER SOURCES, 2009, 187 (01) : 39 - 48
  • [3] Carbon-Based Electrocatalysts for Efficient Hydrogen Peroxide Production
    Bu, Yunfei
    Wang, Yaobin
    Han, Gao-Feng
    Zhao, Yunxia
    Ge, Xinlei
    Li, Feng
    Zhang, Zhihui
    Zhong, Qin
    Baek, Jong-Beom
    [J]. ADVANCED MATERIALS, 2021, 33 (49)
  • [4] Durable and Selective Electrochemical H2O2 Synthesis under a Large Current Enabled by the Cathode with Highly Hydrophobic Three-Phase Architecture
    Cao, Peike
    Quan, Xie
    Zhao, Kun
    Zhao, Xueyang
    Chen, Shuo
    Yu, Hongtao
    [J]. ACS CATALYSIS, 2021, 11 (22) : 13797 - 13808
  • [5] Application of hard ceramic materials B4C in energy storage: Design B4C@C core-shell nanoparticles as electrodes for flexible all-solid-state micro-supercapacitors with ultrahigh cyclability
    Chang, Yukai
    Sun, Xiaohui
    Ma, Mengdong
    Mu, Congpu
    Li, Penghui
    Li, Lei
    Li, Mengzhu
    Nie, Anmin
    Xiang, Jianyong
    Zhao, Zhisheng
    He, Julong
    Wen, Fusheng
    Liu, Zhongyuan
    Tian, Yongjun
    [J]. NANO ENERGY, 2020, 75
  • [6] Defective Carbon-Based Materials for the Electrochemical Synthesis of Hydrogen Peroxide
    Chen, Shucheng
    Chen, Zhihua
    Siahrostami, Samira
    Kim, Taeho Roy
    Nordlund, Dennis
    Sokaras, Dimosthenis
    Nowak, Stanislaw
    To, John W. F.
    Higgins, Drew
    Sinclair, Robert
    Norskov, Jens K.
    Jaramillo, Thomas F.
    Bao, Zhenan
    [J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 2018, 6 (01): : 311 - 317
  • [7] Hydrogen Peroxide: A Key Chemical for Today's Sustainable Development
    Ciriminna, Rosaria
    Albanese, Lorenzo
    Meneguzzo, Francesco
    Pagliaro, Mario
    [J]. CHEMSUSCHEM, 2016, 9 (24) : 3374 - 3381
  • [8] An anti-electrowetting carbon film electrode with self-sustained aeration for industrial H2O2 electrosynthesis
    Cui, Lele
    Chen, Bin
    Zhang, Longshun
    He, Chen
    Shu, Chen
    Kang, Hongyu
    Qiu, Jian
    Jing, Wenheng
    Ostrikov, Kostya
    Zhang, Zhenghua
    [J]. ENERGY & ENVIRONMENTAL SCIENCE, 2024, 17 (02) : 655 - 667
  • [9] Recent advances in catalytic asymmetric epoxidation using the environmentally benign oxidant hydrogen peroxide and its derivatives
    De Faveri, Giorgio
    Ilyashenko, Gennadiy
    Watkinson, Michael
    [J]. CHEMICAL SOCIETY REVIEWS, 2011, 40 (03) : 1722 - 1760
  • [10] H2O2 Electrogeneration from O2 Electroreduction by N-Doped Carbon Materials: A Mini-Review on Preparation Methods, Selectivity of N Sites, and Prospects
    Ding, Yani
    Zhou, Wei
    Gao, Jihui
    Sun, Fei
    Zhao, Guangbo
    [J]. ADVANCED MATERIALS INTERFACES, 2021, 8 (10)