Review of selected 100 recent papers for supercapacitors（Oct. 1，2016 to Jun. 30，2017）

doi:10.12028/j.issn.2095-4239.2017.0135

Abstract

Abstract: This nine months review paper highlights 100 recent published papers on supercapacitors. We searched the Web of Science and found 1811 papers online from October 1, 2016 to June 30, 2017. 100 of them were selected to be highlighted. The researches of electrical double-layer capacitor (EDLC) are mainly focused on new carbon material designed preparation, such as porous carbon materials, graphene, and their effect on supercapacitor performance. The published papers of pseudocapacitor include four aspects, such as metal oxide composites, conductive polymer composite, heteroatom doping carbon materials and new type of pseudocapactive materials. Hybrid supercapacitor includes aqueous hybrid supercapacitor and organic hybrid supercapacitor.

Key words: supercapacitors, electrical double-layer capacitors, pseudocapacitors, hybrid supercapacitors

ZHENG Chao, CHEN Xuedan, GU Yingzhan, WU Yihuan, DING Sheng, PAN Guolin, ZHOU Zhou, LI Linyan, LIU Qiuxiang, YU Xuewen, CHEN Kuan, YUAN Jun, YAN Bin, QIAO Zhijun, FU Guansheng, RUAN Dianbo. Review of selected 100 recent papers for supercapacitors（Oct. 1，2016 to Jun. 30，2017）[J]. Energy Storage Science and Technology, 2017, 6(5): 1128-1144.

References

[1] LI Z Y, AKHTAR M S, KWAK D H, et al. Improvement in the surface properties of activated carbon via steam pretreatment for high performance supercapacitors[J]. Applied Surface, 2017, 404: 88-93.
[2] BOYJOO Y, CHENG Y, ZHONG H, et al. From waste Coca Cola ® to activated carbons with impressive capabilities for CO2 adsorption and supercapacitors[J]. Carbon, 2017, 116: 490-499.
[3] WU H, CHENG L, ZHANG Y, et al. Free-standing activated flax fabrics with tunable meso/micropore ratio for high-rate capacitance[J]. Carbon, 2017, 116: 518-527.
[4] SCHOPF D, ES-SOUNI M. Thin film nanocarbon composites for supercapacitor applications[J]. Carbon, 2017, 115: 449-459.
[5] HWANG J Y, LI M, EL-KADY M F, et al. Next-generation activated carbon supercapacitors: A simple step in electrode processing leads to remarkable gains in energy density[J]. Advanced Functional Materials, 2017, 27(15): 5745-5745.
[6] LI Z H, ZHAO P, LI L Q, et al. Construction of hierarchically one-dimensional core-shell CNT@microporous carbon by covalent bond-induced surface-confined crosslinking for high-performance supercapacitor[J]. ACS Applied Materials & Interfaces, 2017, 9(18): 15557-15565.
[7] JIANG J, LI L P, LIU Y, et al. Uniform implantation of CNTs on total activated carbon surfaces: A smart engineering protocol for commercial supercapacitor applications[J]. Nanotechnology, 2017, 28(14): 145-402.
[8] GUO L, WANG X, WANG Y. Facile synthesis of bimodal nanoporous carbons by templating selective swelling-induced mesoporous block copolymers[J]. Chemical Engineering Journal, 2016, 313: 1295-1301.
[9] FATHY N A, ANNAMALAI K P, TAO Y. Effects of phosphoric acid activation on the nanopore structures of carbon xerogel/carbon nanotubes hybrids and their capacitance storage[J]. Adsorption-journal of the International Adsorption Society, 2017, 23(2/3): 355-360.
[10] HUANG Y Q, HE J, LUAN Y T, et al. Promising biomass-derived hierarchical porous carbon material for high performancesupercapacitor[J]. RSC Advances, 2017, 7(17): 10385-10390.
[11] WEI X, LI Y, GAO S. Biomass-derived interconnected carbon nanoring electrochemical capacitors with high performance in both strongly acidic and alkaline electrolytes[J]. Journal of Materials Chemistry A, 2017, 5: 181-188.
[12] YANG W, YANG W, DING F, et al. Template-free synthesis of ultrathin porous carbon shell with excellent conductivity for high-rate supercapacitors[J]. Carbon, 2017, 111: 419-427.
[13] MENG X, CAO Q, JIN L, et al. Carbon electrode materials for supercapacitors obtained by co-carbonization of coal-tar pitch and sawdust[J]. Journal of Materials Science, 2017, 52(2): 760-769.
[14] HUANG Y, LIU Y, ZHAO G, et al. Sustainable activated carbon fiber from sawdust by reactivation for high-performance supercapacitors[J]. Journal of Materials Science, 2017, 52(1): 478-488.
[15] SUN K, YU S, HU Z, et al. Oxygen-containing hierarchically porous carbon materials derived from wild jujube pit for high-performance supercapacitor[J]. Electrochimica Acta, 2017, 231: 417-428.
[16] ZHANG D, ZHAO J, FENG C, et al. Scalable synthesis of hierarchical macropore-rich activated carbon microspheres assembled by carbon nanoparticles for high rate performance supercapacitors[J]. Journal of Power Sources, 2017, 342: 363-370.
[17] LI X, ZHOU M, WANG J, et al. Flexible and internal series-connected supercapacitors with high working voltage using ultralight porous carbon nanofilms[J]. Journal of Power Sources, 2017, 342: 762-771.
[18] HUANG Y, ZHAO Y, GONG Q, et al. Experimental and correlative analyses of the ageing mechanism of activated carbon based supercapacitor[J]. Electrochimica Acta, 2017, 228: 214-225.
[19] MENG F, ZHENG L, LUO S, et al. A highly torsionable fiber-shaped supercapacitor[J]. Journal of Materials Chemistry A, 2017, 5: 4397-4403.
[20] JO E H, CHOI J H, PARK S R, et al. Size and structural effect of crumpled graphene balls on the electrochemical properties for supercapacitor application[J]. Electrochimica Acta, 2016, 222: 58-63.
[21] ZHANG G, CHEN H, LIU W, et al. Bamboo chopsticks-derived porous carbon microtubes/flakes composites for supercapacitor electrodes[J]. Materials Letters, 2016, 185: 359-362.
[22] DENG L J, GU Y Z, GAO Y H, et al. Carbon nanotubes/holey graphene hybrid film as binder-free electrode for flexible supercapacitors[J]. Journal of Colloid & Interface Science, 2017, 494: 355-362.
[23] PANMAND R P, PATIL P, SETHI Y, et al. Unique perforated graphene derived from bougainvillea flowers for high-power supercapacitors: A green approach[J]. Nanoscale, 2017, 9(14): 4801-4809.
[24] LI Z S, ZHANG L, LI B L, et al. Convenient and large-scale synthesis of hollow graphene-like nanocages for electrochemical supercapacitor application[J]. Chemical Engineering Journal, 2017, 313: 1242-1250.
[25] SONG B, ZHAO J X, WANG M J, et al. Systematic study on structural and electronic properties of diamine/triamine functionalized graphene networks for supercapacitor application[J]. Nano Energy, 2017, 31: 183-193.
[26] ROMANN T, ANDERSON E, PIKMA P, et al. Reactions at graphene| tetracyanoborate ionic liquid interface-New safety mechanisms for supercapacitors and batteries[J]. Electrochemistry Communications, 2017, 74: 38-41.
[27] RASUL S, ALAZMI A, JAOUEN K, et al. Rational design of reduced graphene oxide for superior performance of supercapacitor electrodes[J]. Carbon, 2017, 111: 774-781.
[28] ZHAN C, ZHANG Y, CUMMINGS P T, et al. Computational insight into the capacitive performance of grapheme edge planes[J]. Carbon, 2017, 116: 278-285.
[29] GONG Y N, PING Y J, LI D L, et al. Preparation of high-quality graphene via electrochemical exfoliation & spark plasma sintering and its applications[J]. Applied Surface Science, 2017, 397: 213-219.
[30] LI C, ZHANG X, WANG K, et al. Scalable self-propagating high-temperature synthesis of graphene for supercapacitors with superior power density and cyclic stability[J]. Advanced Materials, 2017, 29(7): 1604690-1604697.
[31] JANG G G, SONG B, LI L Y, et al. Microscopic vertical orientation of nano-interspaced graphene architectures in deposit films as electrodes for enhanced supercapacitor performance[J]. Nano Energy, 2017, 32: 88-95.
[32] YANG D, BOCK C. Laser reduced graphene for supercapacitor applications[J]. Journal of Power Sources, 2017, 337: 73-81.
[33] RAMADOSS A, YOON K Y, KWAK M J, et al. Fully flexible, lightweight, high performance all-solid-state supercapacitor based on 3-Dimensional-graphene/graphite-paper[J]. Journal of Power Sources, 2017, 337: 159-165.
[34] XIA K, LI Q, ZHENG L, et al. Controllable fabrication of 2D and 3D porous graphene architectures using identical thermally exfoliated graphene oxides as precursors and their application as supercapacitor electrodes[J]. Microporous & Mesoporous Materials, 2017, 237: 228-236.
[35] SOURAV B, ARPAN S, PRASENJIT B, et al. Rational functionalization of reduced graphene oxide with imidazolium-based ionic liquid for supercapacitor application[J]. International Journal of Hydrogen Energy, 2016, 41(47): 22134-22143.
[36] SHINDE P A, LOKHANDE V C, JI T, et al. Facile synthesis of hierarchical mesoporous weirds-like morphological MnO2 thin films on carbon cloth for high performance supercapacitor application[J]. Journal of Colloid & Interface Science, 2017, 498: 202-209.
[37] XIAO X, WANG Y, CHEN G, et al. Mn3O4/activated carbon composites with enhanced electrochemical performances for electrochemical capacitors[J]. Journal of Alloys & Compounds, 2017, 703: 163-173.
[38] NOH J, YOON C M, YUN K K, et al. High performance asymmetric supercapacitor twisted from carbon fiber/MnO2, and carbon fiber/MoO3[J]. Carbon, 2017, 116: 470-478.
[39] ZHANG J, DONG L, XU C, et al. Comprehensive approaches to three-dimensional flexible supercapacitor electrodes based on MnO2/carbon nanotube/activated carbon fiber felt[J]. Journal of Materials Science, 2017, 52(10): 5788-5798.
[40] GOPALAKRISHNAN M, SRIKESH G, MOHAN A, et al. In-situ, synthesis of Co3O4/graphite nanocomposite for high-performance supercapacitor electrode applications[J]. Applied Surface Science, 2017, 403: 578-583.
[41] ZHAO Y, XU L, HUANG S, et al. Facile preparation of TiO2/C3N4, hybrid materials with enhanced capacitive properties for high performance supercapacitors[J]. Journal of Alloys & Compounds, 2017, 702: 178-185.
[42] ZHENG M, DONG H, XIAO Y, et al. Hierarchical NiO mesocrystals with tuneable high-energy facets for pseudocapacitive charge storage[J]. Journal of Materials Chemistry A, 2017, 5: 6921-6927.
[43] LI Y, WANG X, YANG Q, et al. Ultra-fine CuO nanoparticles embedded in three-dimensional graphene network nano-structure for high-performance flexible supercapacitors[J]. Electrochimica Acta, 2017, 234: 63-70.
[44] MIRZAEIAN M, OGWU A A, JIRANDEHI H F, et al. Surface characteristics of silver oxide thin film electrodes for supercapacitor applications[J]. Colloids & Surfaces A: Physicochemical & Engineering Aspects, 2017, 519: 223-230.
[45] CHU J, LU D, MA J, et al. Controlled growth of MnO2, via a facile one-step hydrothermal method and their application in supercapacitors[J]. Materials Letters, 2017, 193: 263-265.
[46] LIU Q, JAVED M S, ZHANG C, et al. Promoting power density by cleaving LiCoO2 into nano-flake structure for high performance supercapacitor[J]. Nanoscale, 2017, 9(17): 5509-5516.
[47] LIU Y, SHI K, ZHITOMIRSKY I. Asymmetric supercapacitor, based on composite MnO2-graphene and N-doped activated carbon coated carbon nanotube electrodes[J]. Electrochimica Acta, 2017, 233: 142-150.
[48] HE X, YOO J, LEE M, et al. Morphology engineering of ZnO nanostructures for high performance supercapacitors: Enhanced electrochemistry of ZnO nanocones compared to ZnO nanowires.[J]. Nanotechnology, 2017, 28(24): doi: 10.1088/1361-6528/aa6bca.
[49] BULAKHE R N, NGUYEN V H, SHIM J J. Layer-structured nanohybrid MoS2@rGO on 3D nickel foam for high performance energy storage applications[J]. New Journal of Chemistry, 2017, 41: 1473-1482.
[50] MA Y Y, YI G B, WANG J C, et al. Shape-controllable and -tailorable multi-walled carbon nanotube/MnO2/shape-memory polyurethane composite film for supercapacitor[J]. Synthetic Metals, 2017, 233: 67-72.
[51] QIU H X, HAN X B, LI J, et al. Microwave involved synthesis of graphene/polyaniline nanocomposite with superior electrochemical performance[C]//Journal of Nano Research. Trans Tech Publications, 2017, 46: 212-224.
[52] WAN C, JIAO Y, LI J. Flexible, highly conductive, and free-standing reduced graphene oxide/polypyrrole/cellulose hybrid papers for supercapacitor electrodes[J]. Journal of Materials Chemistry A, 2017: doi: 10.1039/C6TA04844G.
[53] LIU R, MA L, HUANG S, et al. A flexible polyaniline/graphene/bacterial cellulose supercapacitor electrode[J]. New Journal of Chemistry, 2017, doi: 10.1039/C6NJ03107B.
[54] WEN L, LI K, LIU J, et al. Graphene/polyaniline@carbon cloth composite as a high-performance flexible supercapacitor electrode prepared by a one-step electrochemical co-deposition method[J]. RSC Advances, 2017, 7(13): 7688-7693.
[55] SONG Y, GUO Z, HU Z, et al. Electrochemical self-assembly of nano-polyaniline film by forced convection and its capacitive performance[J]. RSC Advances, 2017, 7(7): 3879-3887.
[56] VAN H N, QUYEN T T H, VAN H N, et al. Three-dimensional reduced graphene oxide-grafted polyaniline aerogel as an active material for high performance supercapacitors[J]. Synthetic Metals, 2017, 223: 192-198.
[57] AMBADE R B, AMBADE S B, SHRESTHA N K, et al. Controlled growth of polythiophene nanofibers in TiO2 nanotube arrays for supercapacitor applications[J]. Journal of Materials Chemistry A, 2017, 5(1): 172-180.
[58] PARVEEN N, ANSARI M O, HAN T H, et al. Simple and rapid synthesis of ternary polyaniline/titanium oxide/graphene by simultaneous TiO2 generation and aniline oxidation as hybrid materials for supercapacitor applications[J]. Journal of Solid State Electrochemistry, 2017, 21(1): 57-68.
[59] LI H, SONG J, WANG L, et al. Flexible all-solid-state supercapacitors based on polyaniline orderly nanotubes array[J]. Nanoscale, 2017, 9(1): 193-200.
[60] FENG E, MA G, SUN K, et al. Superior performance of active electrolyte enhanced supercapacitor based on toughened porous network gel polymer[J]. New Journal of Chemistry, 2017, 41: 1986-1992.
[61] KAFY A, AKTHER A, ZHAI L, et al. Porous cellulose/graphene oxide nanocomposite as flexible and renewable electrode material for supercapacitor[J]. Synthetic Metals, 2017, 223: 94-100.
[62] CHEN J, SONG J, FENG X. Facile synthesis of graphene/polyaniline composite hydrogel for high-performance supercapacitor[J]. Polymer Bulletin, 2017, 74(1): 27-37.
[63] YI Z, BETTINI L G, TOMASELLO G, et al. Flexible conducting polymer transistors with supercapacitor function[J]. Journal of Polymer Science Part B Polymer Physics, 2017, 55(1): 96-103.
[64] ZHANG S, GAO H, HUANG M, et al. One-step hydrothermal synthesis of nitrogen doping graphene based cobalt oxide and its supercapacitive properties[J]. Journal of Alloys & Compounds, 2017, 705: 801-805.
[65] ZHU J, XU D, WANG C, et al. Ferric citrate-derived N-doped hierarchical porous carbons for oxygen reduction reaction and electrochemical supercapacitors[J]. Carbon, 2017, 115: 1-10.
[66] YANG X Q, MA H, ZHANG G. Nitrogen-doped mesoporous carbons for supercapacitor electrode with high specific volumetric capacitance[J]. Langmur, 2017, 33(16): 3975-3981.
[67] CHEN C, ZHANG Q, MA T, et al. Synthesis and electrochemical properties of nitrogen-doped graphene/copper sulphide nanocomposite for supercapacitor[J]. Journal of Nanoscience & Nanotechnology, 2017, 17(4): 2811-2816.
[68] WANG Y, WEI Z, NIE Y, et al. Generation of three dimensional pore-controlled nitrogen-doped graphene hydrogels for high-performance supercapacitor by employing formamide as modulator[J]. Journal of Materials Chemistry A, 2017, 5: 1442-1445.
[69] HAO Y, XU F, QIAN M, et al. Low-cost and massive preparation of nitrogen-doped porous carbon for supercapacitor application[J]. RSC Advances, 2017, 7: 10901-10905.
[70] FU, Q S, WEN J, ZHANG N, et al. Free-standing Ti3C2Tx electrode with ultrahigh volumetric capacitance[J]. RSC Advances, 2017, 7: 11998-12005.
[71] TIAN J, LIU Z, LI Z, et al. Hierarchical S-doped porous carbon derived from by-product lignin for high-performance supercapacitors[J]. RSC Advances, 2017, 7(20): 12089-12097.
[72] LIU L, XU S D, WANG F Y, et al. Nitrogen-doped carbon materials with cubic ordered mesostructure: low-temperature autoclaving synthesis for electrochemical supercapacitor and CO2 capture[J]. RSC Advances, 2017, 7(21): 12524-12533.
[73] CHEN K Y, HUANG X B, WAN C Y, et al. Heteroatom-doped hollow carbon microspheres based on amphiphilic supramolecular vesicles and highly crosslinked polyphosphazene for high performance supercapacitor electrode materials[J]. Elecctrochimica Acta, 2016, 222: 543-550.
[74] WANG Y Q, JIANG M H, YANG Y L, et al. Hybrid electrode material of vanadium nitride and carbon fiber with cigarette butt/metal ions wastes as the precursor for supercapacitors[J]. Elecctrochimica Acta, 2016, 222: 1914-1921.
[75] QIN T F, WAN ZY, WANG Z L, et al. 3D flexible O/N Co-doped graphene foams for supercapacitor electrodes with high volumetric and areal capacitances[J]. Journal of Power Sources, 2016, 336: 455-464.
[76] YANG Y L, SHEN K W, LIU Y, et al. Novel hybrid nanoparticles of vanadium nitride/porous carbon as an anode material for symmetrical supercapacitor[J]. Nano Letters, 2017, 9(1): doi: 10.1007/s40820-016-0105-5.
[77] SHAO J Q, MA F W, WU G, et al. Facile preparation of 3D Nanostructured O/N co-doped porous carbon constructed by interconnected carbon nanosheets for excellent-performance supercapacitors[J]. Elecctrochimica Acta, 2016, 222: 793-805.
[78] EHSANI A, KHODAYARI J, HADI M, et al. Nanocomposite of p-type conductive polymer/Cu(II)-based metal-organic frameworks as a novel and hybrid electrode material for highly capacitive pseudocapacitors[J]. Ionics, 2017, 23(1): 131-138.
[79] KHAN A F, DOWN M P, SMITH G C, et al. Surfactant-exfoliated 2D hexagonal boron nitride (2D-hBN): Role of surfactant upon the electrochemical reduction of oxygen and capacitance applications[J]. Journal of Materials Chemistry A, 2017, 5(8): 4103-4113.
[80] WEI B B, LIANG H F, ZHANG D F, et al. CrN thin films prepared by reactive DC magnetron sputtering for symmetric supercapacitors[J]. Journal of Materials Chemistry A, 2017, 5(6): 2844-2851.
[81] LIU M, WANG Z J, LIU J X, et al. Synthesis of few-layer 1T '-MoTe2 ultrathin nanosheets for high-performance pseudocapacitors[J]. Journal of Materials Chemistry A, 2017, 5(3): 1035-1042.
[82] WANG B J, WU Q Q, SUN H. An intercalated graphene/ (molybdenum disulfide) hybrid fiber for capacitive energy storage[J]. Journal of Materials Chemistry A, 2017, 5(3): 925-930.
[83] GAI Y, SHANG Y, GONG L, et al. A self-template synthesis of porous ZnCo2O4 microspheres for high-performance quasi-solidstate asymmetric supercapacitors[J]. RSC Advances, 2017, 7: 1038-1044.
[84] KIRUBASANKAR B, MURUGADOSS V, ANGAIAH S. Hydrothermal assisted in situ growth of CoSe onto graphene nanosheets as a nanohybrid positive electrode for asymmetric supercapacitors[J]. RSC Advances, 2017, 7(10): 5853-5862.
[85] EDE S R, ANANTHARAJ S, KUMARAN K T, et al. One step synthesis of Ni/Ni(OH)2 nano sheets (NSs) and their application in asymmetric supercapacitors[J]. RSC Advances, 2017, 7(10): 5898-5911.
[86] LU K, ZHANG J, WANG Y, et al. Interfacial deposition of three-dimensional nickel hydroxide nanosheet-graphene aerogel on ni wire for flexible fiber asymmetric supercapacitors[J]. ACS Sustainable Chemistry & Engineering, 2017, 5(1): 821-827.
[87] KOPCZYŃSKI K, KOLANOWSKI Ł, BARANIAK M, et al. Highly amorphous PbO2, as an electrode in hybrid electrochemical capacitors[J]. Current Applied Physics, 2017, 17(1): 66-71.
[88] WEN J, LI S, CHEN T, et al. Three-dimensional hierarchical NiCo hydroxide@Ni3S2, nanorod hybrid structure as high performance positive material for asymmetric supercapacitor[J]. Electrochimica Acta, 2016, 222: 965-975.
[89] ZHAO Y, LIU Z, GU W, et al. Enhanced energy density of a supercapacitor using 2D CoMoO4 ultrathin nanosheets and asymmetric configuration[J]. Nanotechnology, 2016, 27(50): doi: 10.1088/0957-4484/27/50/505401.
[90] SUBRAMANI K, SUDHAN N, DIVYA R, et al. All-solid-state asymmetric supercapacitors based on cobalt hexacyanoferrate-derived CoS and activated carbon[J]. RSC Advances, 2017, 7: 6648-6659.
[91] HEYDARI H, GHOLIVAND M B. An all-solid-state asymmetric device based on a polyaniline hydrogel for a high energy flexible supercapacitor[J]. New Journal of Chemistry, 2016, 41(1): 237-244.
[92] ZHANG X, LUO J, TANG P, et al. A universal strategy for metal oxide anchored and binder-free carbon matrix electrode: A supercapacitor case with superior rate performance and high mass loading[J]. Nano Energy, 2017, 31: 311-321.
[93] GARAKANI M A, ABOUALI S, XU Z L, et al. Heterogeneous, mesoporous NiCo2O4-MnO2/graphene foam for asymmetric supercapacitors with ultrahigh specific energies[J]. Journal of Materials Chemistry A, 2017, 5: 3547-3557.
[94] SAITO Y, MEGURO M, ASHIZAWA M, et al. Manganese dioxide nanowires on carbon nanofiber frameworks for efficient electrochemical device electrodes[J]. RSC Advances, 2017, 7(20): 12351-12358.
[95] DU D, LAN R, XIE K, et al. Synthesis of Li2Ni2(MoO4)3 as a high-performance positive electrode for asymmetric supercapacitors[J]. RSC Advances, 2017, 7: 13304-13311.
[96] WANG R, JIN D, ZHANG Y, et al. Engineering metal organic framework derived 3D nanostructures for high performance hybrid supercapacitors[J]. Journal of Materials Chemistry A, 2017, 5(1): 292-302.
[97] MAENG J C, YOON J R. The electric characteristics of asymmetric hybrid supercapacitor modules with Li4Ti5O11 electrode[J]. Transactions of the Korean Institute of Electrical Engineers, 2017, 66(2): 357-362.
[98] QUE L F, YU F D, WANG Z B, et al. Hierarchical hydrogen titanate nanowire arrays/anatase TiO2 heterostructures as binder-free anodes for Li-ion capacitors[J]. Electrochimica Acta, 2016, 222: 27-35.
[99] LEE B G, LEE S H. Application of hybrid supercapacitor using granule Li4Ti5O12/activated carbon with variation of current density[J]. Journal of Power Sources, 2017, 343: 545-549.
[100] KHAIRY M, FAISAL K, MOUSA M A. High-performance hybrid supercapacitor based on pure and doped Li4Ti5O12, and graphene[J]. Journal of Solid State Electrochemistry, 2017, 21(3): 873-882.