|
|
Preparation and electrocatalytic performance of Ag@Cu2+1O/MWNTs catalysts towards oxygen reoxygen reduction catalyst for aluminum-air battery |
YIN Liankun, ZHANG Yansong, YU Jiaxin, LUO Zhihong |
Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China |
|
|
Abstract Ag@Cu2+1O/MWNTs catalysts were prepared by one-step method with THPC as reducing agent and MWNTs as support. The structure, morphology, and composition of the catalyst were characterized by X-ray diffractometry, transmission electron microscopy, and X-ray photoelectron spectroscopy. In addition, the catalyst load and ORR performance were tested. It can be seen that the Ag and Cu2+1O loading (mass fraction, %) of Ag@Cu2+1O/MWNTs catalyst are 9.32% and 5.90%, respectively, and the average particle size of Ag@Cu2+1O catalyst is about 7 nm. Ag@Cu2+1O/MWNTs catalyzes direct four-electron oxygen reduction in alkaline medium, the half-wave potential of Ag@Cu2+1O/MWNTs is 0.75 V, the limit diffusion current density is close to 5.5 mA/cm2 at 1 600 r/min and the slope of Tafel is 92 mV/dec, which is equivalent to the performance of 20%Pt/C and is more outstanding than Ag/MWNTs catalyst with 17.5%Ag loading capacity. Meanwhile, Ag@Cu2+1O/MWNTs has the same stability as 20%Pt/C and better resistance to methanol poisoning. When used as cathode catalyst for aluminum-air battery, Ag@Cu2+1O/MWNTs exhibits power density (148.7 mW/cm2), capacity (1 260 mAh/g) and stability which is comparable to that of 20%Pt/C.
|
Received: 19 November 2021
Published: 19 July 2022
|
|
|
|
|
[1] WU S, HU S, ZHANG Q, et al.Hybrid high-concentration electrolyte significantly strengthens the practicability of alkaline aluminum-air battery[J]. Energy Storage Materials, 2020, 31(6): 310-317. [2] WU S, ZHANG Q, MA J, et al.Interfacial design of Al electrode for efficient aluminum-air batteries: issues and advances[J]. Materials Today Energy, 2020, 18(10):100499. [3] LIU D, TIAN J, TANG Y, et al.High-power double-face flow Al-air battery enabled by CeO2 decorated MnOOH nanorods catalyst[J]. Chemical Engineering Journal, 2021, 406(15): 126772. [4] WANG Y, HAO J, YU J, et al.Hierarchically porous N-doped carbon derived from biomass as oxygen reduction electrocatalyst for high-performance Al-air battery[J]. Journal of Energy Chemistry, 2020, 45(6): 119-125. [5] LIU Y S, SUN Q, LI W Z, et al.A comprehensive review on recent progress in aluminum-air batteries[J]. Green Energy and Environment, 2017, 2(3): 246-277. [6] CHENG F Y, CHEN J.Metal-air batteries: from oxygen reduction electrochemistry to cathode catalysts[J]. Chemical Society Reviews, 2012, 6(41): 2172-2192. [7] SUN J, GUO N K, SHAO X Y, et al.A facile strategy to construct amorphous spinel-based electrocatalysts with massive oxygen vacancies using ionic liquiddopant[J]. Advanced Energy Materials, 2018, 8(27): 100980. [8] LIU D P, TIAN J, TANG Y G, et al.High-power double-face flow Al-air battery enabled by CeO2 decorated MnOOH nanorods catalyst[J]. Chemical Engineering Journal, 2021, 406(15):126772. [9] XIN L, ZHANG Z, WANG Z, et al.Carbon supported Ag nanoparticles as high-performance cathode catalyst for H2/O2 anion exchange membrane fuel cell[J]. Frontiers in Chemistry, 2013, 1(7): 16-20. [10] NOORI M T, JAIN S C, GHANGREKAR M M, et al.Biofouling inhibition and enhancing performance of microbial fuel cell using silver nano-particles as fungicide and cathode catalyst[J]. Bioresource Technology, 2016, 220(11): 183-189. [11] CHENG Y, LI W, FAN X.Modified multi-walled carbon nanotube/Ag nanoparticle compositecatalyst for the oxygen reduction reaction in alkaline solution[J]. Electrochimica Acta, 2013, 111(6): 635-641. [12] MAHESWARI S, SRIDHAR P, PITCHUMANI S.Carbon- supported silver as cathode electrocatalyst for alkaline polymer electrolyte membrane fuel cells[J]. Electrocatalysis, 2012, 3(1): 13-21. [13] TANG Q, JIANG L, QI J, et al.One step synthesis of carbon- supported Ag/MnyOx composites for oxygen reduction reaction in alkaline media[J]. Applied Catalysis B: Environmental, 2011, 103(3): 337-345. [14] WALANDA D K, LAWRANCE G A, DONNE S W.Hydrothermal MnO2: synthesis, structure, morphology and discharge performance[J]. Journal of Power Sources, 2014, 139(1): 325-341. [15] GOH F W T, LIU Z, GE X, et al. Ag-nanoparticles-modified MnO2 nanorods catalysts for use as an air electrode in zinc-air battery[J]. Electrochimica Acta, 2013, 114(30): 598-604. [16] NORSKOV J K, ROSSMEISL J, LOGADOTTIR A, et al.Origin of the overpotential for oxygen reduction at a fuel-cell cathode[J]. Journal of Physical Chenistry B, 2004, 108(46): 17886-17892. [17] STAMENKOVIC V, MUN B S, MAYRHOFER K J J, et al. Changing the activity of electrocatalysts for oxygen reduction by tuning the surface electronic structure[J]. Angewandte Chemie- International Edition, 2006, 45(18): 2897-2901. [18] TRIPKOVIC V, SKULASON E, SIAHROSTAMI S, et al.The oxygen reduction reaction mechanism on Pt(111) from density functional theory calculations[J]. Electrochim Acta, 2010, 55(27): 7975-7981. [19] 李长玉, 刘守新, 马跃. 可见光响应Cu-Cu2+1O复合材料的水热法一步合成[J]. 物理化学学报, 2009, 25(8):1555-1560. LI Changyu, LIU Shouxin, MA Yue.Preparation of visible-light response Cu-Cu2+1O composites by aone-step hydrothermal method[J]. Acta Physicao-Chimica Sinica, 2009, 25(8): 1555-1560. [20] XIANG L, LUO Z, HU C, et al.Gold nanoparticle/multi-walled carbon nanotube hybrid as a stable catalyst for the oxygen reduction reaction[J]. ChemElectroChem, 2018, 5(7): 1073-1079. [21] GUO L, XIANG L, Li F, et al.Silver nanoparticle/multiwalled carbon nanotube hybrid as an efficient electrocatalyst for the oxygen reduction reaction in alkaline medium[J]. ChemElectroChem, 2019, 6(9): 2489-2496. |
|
|
|