Co2P4O12/NF nanowire arrays for water splitting in an alkaline environment

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Abstract Co₂P₄O₁₂ array was constructed on the surface of nickel foam by solvothermal method and phosphating at 300 ℃ using CoCl₂·6H₂O as raw material. The diameter of Co₂P₄O₁₂ nanowires is about 200 nm. SEM, TEM and XRD were used to characterize the morphology and crystallographic characteristics, and a three-electrode system was constructed to measure the electrochemical performance in alkaline environment. In the process of hydrogen evolution, only 122 mV overpotential is needed to achieve a current density of 10 mA·cm^-2. In the process of oxygen evolution, only 334 mV of overpotential is needed to reach the current density of 15 mA·cm^-2. The assembled electrolytic cell works for 40 h at the current density of 15 mA·cm^-2, and the cell voltage didn’t change significantly, showing good stability. The above tests proved that Co₂P₄O₁₂/NF is a potential bifunctional catalyst.

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	ZHANG Weiguo
	LU Yipeng
	WANG Hongzhi
	YAO Suwei

Keywords： Co₂P₄O₁₂ nanowire array hydrogen evolution process oxygen evolution process bifunctional catalyst

Received 2021-04-14;

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ZHANG Weiguo, LU Yipeng, WANG Hongzhi, YAO Suwei.Co₂P₄O₁₂/NF nanowire arrays for water splitting in an alkaline environment[J] Chemcial Industry and Engineering, 2023,V40(2): 17-24

[1] JARAMILLO T F, JϕRGENSEN K P, BONDE J, et al. Identification of active edge sites for electrochemical H₂ evolution from MoS₂ nanocatalysts[J]. Science, 2007, 317(5834): 100-102
[2] KIBSGAARD J, CHEN Z, REINECKE B N, et al. Engineering the surface structure of MoS₂ to preferentially expose active edge sites for electrocatalysis[J]. Nature Materials, 2012, 11(11): 963-969
[3] HU C, ZHANG L, GONG J. Recent progress made in the mechanism comprehension and design of electrocatalysts for alkaline water splitting[J]. Energy & Environmental Science, 2019, 12(9): 2620-2645
[4] CONWAY B E, TILAK B V. Interfacial processes involving electrocatalytic evolution and oxidation of H₂, and the role of chemisorbed H[J]. Electrochimica Acta, 2002, 47(22/23): 3571-3594
[5] CHEREVKO S, GEIGER S, KASIAN O, et al. Oxygen and hydrogen evolution reactions on Ru, RuO₂, Ir, and IrO₂ thin film electrodes in acidic and alkaline electrolytes: A comparative study on activity and stability[J]. Catalysis Today, 2016, 262: 170-180
[6] ZHANG J, WANG T, POHL D, et al. Interface engineering of MoS₂/Ni₃S₂ heterostructures for highly enhanced electrochemical overall-water-splitting activity[J]. Angewandte Chemie International Edition, 2016, 55(23): 6702-6707
[7] PENG S, LI L, ZHANG J, et al. Engineering Co₉S₈/WS₂ array films as bifunctional electrocatalysts for efficient water splitting[J]. Journal of Materials Chemistry A, 2017, 5(44): 23361-23368
[8] WANG D, ZHANG X, BAO S, et al. Phase engineering of a multiphasic 1T/2H MoS₂ catalyst for highly efficient hydrogen evolution[J]. Journal of Materials Chemistry A, 2017, 5(6): 2681-2688
[9] LIU T, MA X, LIU D, et al. Mn doping of CoP nanosheets array: An efficient electrocatalyst for hydrogen evolution reaction with enhanced activity at all pH values[J]. ACS Catalysis, 2017, 7(1): 98-102
[10] LI Y, ZHANG H, JIANG M, et al. 3D self-supported Fe-doped Ni₂P nanosheet arrays as bifunctional catalysts for overall water splitting[J]. Advanced Functional Materials, 2017, doi: 10.1002/adfm.201702513
[11] WANG X, CHEN H, XU Y, et al. Self-supported NiMoP₂ nanowires on carbon cloth as an efficient and durable electrocatalyst for overall water splitting[J]. Journal of Materials Chemistry A, 2017, 5(15): 7191-7199
[12] LI M, ZHU Y, WANG H, et al. Ni strongly coupled with Mo₂C encapsulated in nitrogen-doped carbon nanofibers as robust bifunctional catalyst for overall water splitting[J]. Advanced Energy Materials, 2019, doi:10.1002/aenm.201803185
[13] YANG S, WANG Y, ZHANG H, et al. Unique three-dimensional Mo₂C@MoS₂ heterojunction nanostructure with S vacancies as outstanding all-pH range electrocatalyst for hydrogen evolution[J]. Journal of Catalysis, 2019, 371: 20-26
[14] GENG S, YANG W, YU Y. Fabrication of NiC/MoC/NiMoO₄ heterostructured nanorod arrays as stable bifunctional electrocatalysts for efficient overall water splitting[J]. Chemistry, an Asian Journal, 2019, 14(7): 1013-1020
[15] WU A, XIE Y, MA H, et al. Integrating the active OER and HER components as the heterostructures for the efficient overall water splitting[J]. Nano Energy, 2018, 44: 353-363
[16] ZHANG B, XIAO C, XIE S, et al. Iron-nickel nitride nanostructures in situ grown on surface-redox-etching nickel foam: Efficient and ultrasustainable electrocatalysts for overall water splitting [J]. Chemistry of Materials, 2016, 28(19): 6934-6941
[17] JIN H, WANG J, SU D, et al. In situ cobalt-cobalt oxide/N-doped carbon hybrids as superior bifunctional electrocatalysts for hydrogen and oxygen evolution[J]. Journal of the American Chemical Society, 2015, 137(7): 2688-2694
[18] PATIL D R, KOTESWARARAO B, BEGARI K, et al. Cobalt cyclotetraphosphate (Co₂P₄O₁₂): A new high-performance electrode material for supercapacitors[J]. ACS Applied Energy Materials, 2019, 2(4): 2972-2981
[19] LV C, XU S, YANG Q, et al. Promoting electrocatalytic activity of cobalt cyclotetraphosphate in full water splitting by titanium-oxide-accelerated surface reconstruction[J]. Journal of Materials Chemistry A, 2019, 7(20): 12457-12467
[20] DUAN J, CHEN S, VASILEFF A, et al. Anion and cation modulation in metal compounds for bifunctional overall water splitting[J]. ACS Nano, 2016, 10(9): 8738-8745
[21] HUANG Z, CHEN Z, CHEN Z, et al. Ni₁₂P₅ nanoparticles as an efficient catalyst for hydrogen generation via electrolysis and photoelectrolysis[J]. ACS Nano, 2014, 8(8): 8121-8129
[22] OLBERTZ A, STACHEL D, SVOBODA I, et al. Redetermination of the crystal structures of nickel cyclotetraphosphate, Ni₂P₄O₁₂ and of cobalt cyclotetraphosphate, Co₂P₄O₁₂ [J]. Zeitschrift Fur Kristallographie-New Crystal Structures, 1998, 213(2): 241-242
[23] LUKOWSKI M A, DANIEL A S, MENG F, et al. Enhanced hydrogen evolution catalysis from chemically exfoliated metallic MoS₂ nanosheets[J]. Journal of the American Chemical Society, 2013, 135(28): 10274-10277
[24] YANG Y, LUN Z, XIA G, et al. Non-precious alloy encapsulated in nitrogen-doped graphene layers derived from MOFs as an active and durable hydrogen evolution reaction catalyst[J]. Energy & Environmental Science, 2015, 8(12): 3563-3571
[25] ZHANG W, LIU Y, ZHOU H, et al. A high-performance electrocatalyst of CoMoP@NF nanosheet arrays for hydrogen evolution in alkaline solution[J]. Journal of Materials Science, 2019, 54(17): 11585-11595
[26] Wu C, Yang Y, Dong D, et al. In situ coupling of CoP polyhedrons and carbon nanotubes as highly efficient hydrogen evolution reaction electrocatalyst[J]. Small Small, 2017, doi: 10.1002/small.201602873
[27] FABBRI E, HABEREDER A, WALTAR K, et al. Developments and perspectives of oxide-based catalysts for the oxygen evolution reaction[J]. Catal Sci Technol, 2014, 4(11): 3800-3821
[28] YANG Y, YAO H, YU Z, et al. Hierarchical nanoassembly of MoS₂/Co₉S₈/Ni₃S₂/Ni as a highly efficient electrocatalyst for overall water splitting in a wide pH range[J]. Journal of the American Chemical Society, 2019, 141(26): 10417-10430
[29] GUO Y, TANG J, WANG Z, et al. Elaborately assembled core-shell structured metal sulfides as a bifunctional catalyst for highly efficient electrochemical overall water splitting[J]. Nano Energy, 2018, 47: 494-502
[30] LIANG Q, JIN H, WANG Z, et al. Metal-organic frameworks derived reverse-encapsulation Co-NC@Mo₂C complex for efficient overall water splitting[J]. Nano Energy, 2019, 57: 746-752
[31] ZHANG Y, SHAO Q, LONG S, et al. Cobalt-molybdenum nanosheet arrays as highly efficient and stable earth-abundant electrocatalysts for overall water splitting[J]. Nano Energy, 2018, 45: 448-455
[32] LIN Q, LIANG J, LIU J, et al. Hierarchical amorphous carbon-coated Co/Co₉S₈ nanoparticles on MoS₂ toward synergetic electrocatalytic water splitting[J]. Industrial & Engineering Chemistry Research, 2019, 58(51): 23093-23098
[33] GUO M, LIU Y, DONG S, et al. Co₉S₈-catalyzed growth of thin-walled graphite microtubes for robust, efficient overall water splitting[J]. ChemSusChem, 2018, 11(23): 4150-4155
[34] YU L, ZHOU H, SUN J, et al. Hierarchical Cu@CoFe layered double hydroxide core-shell nanoarchitectures as bifunctional electrocatalysts for efficient overall water splitting[J]. Nano Energy, 2017, 41: 327-336
[35] LI L, GUO Y, WANG X, et al. Ultraeven Mo-doped CoP nanocrystals as bifunctional electrocatalyst for efficient overall water splitting[J]. Langmuir: the ACS Journal of Surfaces and Colloids, 2021, 37(19): 5986-5992
[36] KONG T, SUI Y, QI J, et al. In situ transformation of sea urchin-like Ni_xCo_yP@NF as an efficient bifunctional electrocatalyst for overall water splitting[J]. Journal of Materials Science: Materials in Electronics, 2021, 32(2): 1951-1961