Ultra-small Cu–Ni nanoalloy as a high-performance supercapacitor electrode material and highly durable methanol oxidation electrocatalyst

다국어 초록 (Multilingual Abstract)

Ultra-small, pristine nanoalloy particles have attracted considerable attention for applications rangingfrom electrocatalysis to electrochemical energy storage owing to their high conductivity and large specificsurface area. However, their practical deployment relies on a controllable process is low-cost, scalable,and results in numerous monodispersed particles. In this work, we demonstrate an alcohothermal processthat is scalable to obtain ultra-small (r < 4 nm) and monodispersed (~4.1 ± 0.5 nm) Cu–Ni nanoalloyparticles. Ethylene-glycol was used as a reaction medium that also acts as an in situ reducing and cappingagent responsible for nanoalloy formation. The prepared nanoalloy particles were electrochemicallytested for supercapacitor and methanol-oxidation applications. The nanoalloy electrode showed a desirablespecific capacitance of 858F g 1 at a current density of 1 Ag 1 with good cyclic stability. As a catalystfor methanol-oxidation, the nanoalloy showed a high current density of ~191.5 mA cm 2. The methanoloxidationreaction current reached 156 mA while maintaining 83% of its initial value, even after 300cycles. The observed superior electrochemical performance is attributed to the high conductivity, fastelectron transport, and large specific surface associated with ultra-small Cu-Ni nanoalloy particles.

참고문헌 (Reference)

1 C. Liu, 22 : E28-E62, 2010

2 Y. An, 49 (49): 1646-1651, 2020

3 H. Wang, 7 : 1601709-, 2017

4 R. Santhosh, 276 : 284-292, 2018

5 Y. Luan, 308 : 121-130, 2019

6 Y. Li, 309 : 2020

7 U. Kurtan, 32 : 2020

8 I. S. Pieta, 244 : 272-283, 2019

9 X. Wang, 7 (7): 1-13, 2017

10 T. Bhusankar, 685 : 84-88, 2017

11 T. Bhusankar, 265 : 771-778, 2018

12 T. Bhusankar, 116 : 122-130, 2018

13 S. Rana, 7 (7): 2869-2879, 2017

14 Lijuan Sun, 7 : 17781-17787, 2017

15 T. Xia, 14 (14): 5741-5744, 2012

16 G. H. Mohamed Saeed, 2010 : 2010

17 U. Holzwarth, 6 (6): 534-534, 2011

18 J. Stergar, 48 (48): 1344-1347, 2012

19 U. Naveen, 6 : 1255-1272, 2019

20 M. Salanne, 1 : 1-10, 2016

21 N. Abdullah, 13 (13): 1-13, 2018

22 A. Khouchaf, 4 (4): 97-105, 2016

23 Jiangmin, Jiang, 1700110-, 2017

24 Q. Yang, 370 : 666-676, 2019

25 X. Ma, 24 (24): 529-537, 2018

26 K. Kong, 437 : 2019

27 A. Yuda, 1-103, 2020

28 S. Wu, 7 (7): 22935-22940, 2015

29 S. Wasmus, 461 (461): 14-31, 1999

30 J. Ahmed, 331 (331): 206-212, 2008

31 P. Wu, 14 (14): 1801479-, 2018

32 S. Shan, 4 (4): 42654-42669, 2014

33 Q. Q. Y. W. Chen, 113 : 7497-, 2009

34 G. Balakrishnan, 145 : 443-466, 2010

35 J. D. Schiffman, 258 : 1191-1214, 2018

36 S. Zhang, 14 (14): 2019

37 Ediga Umeshbabu, "Synthesis of mesoporous NiCo2O4–rGO by a solvothermal method for charge storage applications" Royal Society of Chemistry (RSC) 5 (5): 66657-66666, 2015

38 Suba Lakshmi Madaswamy, "Polyaniline-based nanocomposites for direct methanol fuel cells (DMFCs) - A Recent Review" 한국공업화학회 97 : 79-94, 2021

39 이광세, "Novel structure of bacteria doped ZnO particles: Facile and green synthesis route to prepare hybrid material for supercapacitor electrodes" 한국공업화학회 97 : 250-255, 2021

40 Ediga Umeshbabu, "NiCo 2 O 4 hexagonal nanoplates anchored on reduced graphene oxide sheets with enhanced electrocatalytic activity and stability for methanol and water oxidation" Elsevier BV 213 : 717-729, 2016

41 Min Fu, "Microwave deposition synthesis of Ni(OH)2/sorghum stalk biomass carbon electrode materials for supercapacitors" Elsevier BV 846 : 156376-, 2020

42 Ediga Umeshbabu, "Magnetic, optical and electrocatalytic properties of urchin and sheaf-like NiCo2O4 nanostructures" Elsevier BV 165 : 235-244, 2015

43 Min Fu, "In situ growth of manganese ferrite nanorods on graphene for supercapacitors" Elsevier BV 46 (46): 28200-28205, 2020

44 G RAJESHKHANNA, "In situ grown nano-architectures of Co3O4 on Ni-foam for charge storage application" Springer Science and Business Media LLC 129 (129): 157-166, 2017

45 Zitong Zhu, "Growth of MnCo2O4 hollow nano-spheres on activated carbon cloth for flexible asymmetric supercapacitors" Elsevier BV 492 : 229669-, 2021

46 김윤기, "Functionalized phosphorene/polypyrrole hybrid nanomaterial by covalent bonding and its supercapacitor application" 한국공업화학회 94 : 122-126, 2021

47 Min Fu, "Facile synthesis of strontium ferrite nanorods/graphene composites as advanced electrode materials for supercapacitors" Elsevier BV 588 : 795-803, 2021

48 Min Fu, "Facile synthesis of V2O5/graphene composites as advanced electrode materials in supercapacitors" Elsevier BV 862 : 158006-, 2021

49 Dengfeng Wu, "Facile Synthesis of Cu/NiCu Electrocatalysts Integrating Alloy, Core–Shell, and One-Dimensional Structures for Efficient Methanol Oxidation Reaction" American Chemical Society (ACS) 9 (9): 19843-19851, 2017

50 ROY ANIMESH, "Electrochemical deposition of self-supported bifunctional copper oxide electrocatalyst for methanol oxidation and oxygen evolution reaction" 한국공업화학회 76 : 515-523, 2019

51 Shahid Ali, "Co@Pt core–shell nanoparticles supported on carbon nanotubes as promising catalyst for methanol electro-oxidation" 한국공업화학회 28 : 344-350, 2015

52 Bal Sydulu Singu, "Carbon Nanotube–Manganese oxide nanorods hybrid composites for high-performance supercapacitor materials" 한국공업화학회 97 : 239-249, 2021