[1] LAGIOIA G, SPINELLI M P, AMICARELLI V. Blue and green hydrogen energy to meet European Union decarbonisation objectives. an overview of perspectives and the current state of affairs[J]. International Journal of Hydrogen Energy, 1304(2023).

[2] PANCHENKO V A, DAUS Y V, KOVALEV A A et al. Prospects for the production of green hydrogen: review of countries with high potential[J]. International Journal of Hydrogen Energy, 4551(2023).

[3] LI X, RAORANE C J, XIA C et al. Latest approaches on green hydrogen as a potential source of renewable energy towards sustainable energy: spotlighting of recent innovations, challenges, and future insights[J]. Fuel, 126684(2023).

[4] QURESHI F, YUSUF M, KHAN M A et al. A state-of-the-art review on the latest trends in hydrogen production, storage, and transportation techniques[J]. Fuel, 127574(2023).

[5] KARACA A E, DINCER I. Development of a new photoelectrochemical system for clean hydrogen production and a comparative environmental impact assessment with other production methods[J]. Chemosphere, 139367(2023).

[6] JAYAPRABAKAR J, HARI N S S, BADREENATH M et al. Nano materials for green hydrogen production: technical insights on nano material selection, properties, production routes and commercial applications[J]. International Journal of Hydrogen Energy, 674(2024).

[7] HOTA P, DAS A, MAITI D K. A short review on generation of green fuel hydrogen through water splitting[J]. International Journal of Hydrogen Energy, 523(2023).

[8] VAN DER ZALM J M, QUINTAL J, HIRA S A et al. Recent trends in electrochemical catalyst design for hydrogen evolution, oxygen evolution, and overall water splitting[J]. Electrochimica Acta, 141715(2023).

[9] LI H, GUO J, LI Z et al. Research progress of hydrogen production technology and related catalysts by electrolysis of water[J]. Molecules, 5010(2023).

[10] PLEVOVA M, HNAT J, BOUZEK K. Electrocatalysts for the oxygen evolution reaction in alkaline and neutral media. A comparative review[J]. Journal of Power Sources, 230072(2021).

[11] LAKSHMI K C S, VEDHANARAYANAN B, LIN T W. Electrocatalytic hydrogen and oxygen evolution reactions: role of two-dimensional layered materials and their composites[J]. Electrochimica Acta, 142119(2023).

[12] HOANG A L, BALAKRISHNAN S, HODGES A et al. High- performing catalysts for energy-efficient commercial alkaline water electrolysis[J]. Sustainable Energy & Fuels, 31(2023).

[13] GUO R H, MO Y J, AN S L et al. Cerium oxide hollow sphere: controllable synthesis and its effect on electrocatalytic performance of Pt-based catalysts[J]. Journal of Inorganic Materials, 779(2018).

[14] IQBAL M Z, ZAHID R, KHAN M W et al. Exploration of catalytically active materials for efficient electrochemical hydrogen and oxygen evolution reactions[J]. International Journal of Hydrogen Energy, 8045(2023).

[15] NAGAPPAN S, KARMAKAR A, MADHU R et al. Tuning the active sites and optimizing the d-spacing value in CoFe-LDH by ex situ intercalation of guest anions: an innovative electrocatalyst for overall water splitting reaction[J]. Catalysis Science & Technology, 6377(2023).

[16] HOU Z, FAN F, WANG Z et al. Heterostructural NiSe-CoFe LDH as a highly effective and stable electrocatalyst for the oxygen evolution reaction[J]. Dalton Transactions, 10064(2023).

[17] DENG B, LIANG J, YUE L et al. CoFe-LDH nanowire arrays on graphite felt: a high-performance oxygen evolution electrocatalyst in alkaline media[J]. Chinese Chemical Letters, 890(2022).

[18] GUO T, LI L, WANG Z. Recent development and future perspectives of amorphous transition metal-based electrocatalysts for oxygen evolution reaction[J]. Advanced Energy Materials, 2200827(2022).

[19] GUO C, SHI Y, LU S et al. Amorphous nanomaterials in electrocatalytic water splitting[J]. Chinese Journal of Catalysis, 1287(2021).

[20] KARKEH-ABADI F, GHIYASIYAN-ARANI M, DAWI E A et al. Microstructural study of sonochemical synthesized belt-like Zr (MoO₄)₂/MoO₃ composites for efficient energy storage[J]. Journal of Energy Storage, 107896(2023).

[21] DELICE S, ISIK M, GASANLY N M et al. Growth and temperature-tuned band gap characteristics of LiGd (MoO₄)₂ single crystals for optoelectronic applications[J]. Ceramics International, 25840(2023).

[22] GAJRAJ V, DEVI P, KUMAR R et al. Fabrication of nanocluster- aggregated dense Ce₂(MoO₄)₃ microspherical architectures for high-voltage energy storage and high catalytic energy conversion applications[J]. Energy & Fuels, 7841(2022).

[23] RAY S K, HUR J. A critical review on modulation of NiMoO₄- based materials for photocatalytic applications[J]. Journal of Environmental Management, 111562(2021).

[24] EDA K, KATO Y, OHSHIRO Y et al. Synthesis, crystal structure, and structural conversion of Ni molybdate hydrate NiMoO₄·nH₂O[J]. Journal of Solid State Chemistry, 1334(2010).

[25] ZHAO X, MENG J, YAN Z et al. Nanostructured NiMoO₄ as active electrocatalyst for oxygen evolution[J]. Chinese Chemical Letters, 319(2019).

[26] RAMMAL M B, OMANOVIC S. Synthesis and characterization of NiO, MoO₃, and NiMoO₄ nanostructures through a green, facile method and their potential use as electrocatalysts for water splitting[J]. Materials Chemistry and Physics, 123570(2020).

[27] DABIR M P, MASOUDPANAH S M, MAMIZADEH M. CTAB- assisted hydrothermal synthesis of platelike and nanorod-like NiMoO₄ morphologies for supercapacitor and hydrogen evolution applications[J]. Journal of Energy Storage, 107951(2023).

[28] SILVA M M S, RAIMUNDO R A, SILVA T R et al. Morphology- controlled NiFe₂O₄nanostructures: influence of calcination temperature on structural, magnetic and catalytic properties towards OER[J]. Journal of Electroanalytical Chemistry, 117277(2023).

[29] LI M X, XIAO B, ZHAO Z Y et al. Morphology evolution regulation of dual-doped S, Fe-NiMoO₄ microrods based on precipitation-dissolution equilibrium for oxygen evolution[J]. Fuel, 126769(2023).

[30] PRASAD K, MAHATO N, YOO K et al. Morphology regulated hierarchical rods-, buds-, and sheets-like CoMoO₄ for electrocatalytic oxygen evolution reaction[J]. Energies, 2441(2023).

[31] GAO G, WANG K, WANG X. 2D/2D core/shell structure of FeCo₂O₄@NiMn LDH for efficient oxygen evolution reaction[J]. Journal of Alloys and Compounds, 168478(2023).

[32] ZHANG C, XU W, LI S et al. Core-shell heterojunction engineering of Ni_0.85Se-O/CN electrocatalyst for efficient OER[J]. Chemical Engineering Journal, 140291(2023).

[33] CHEN J, LI X, MA B et al. CoP@Ni core-shell heterostructure nanowire array: a highly efficient electrocatalyst for hydrogen evolution[J]. Journal of Colloid and Interface Science, 354(2023).

[34] YANG S, TIWARI S K, ZHU Z et al. In situ fabrication of Mn-doped NiMoO₄ rod-like arrays as high performance OER electrocatalyst[J]. Nanomaterials, 827(2023).

[35] ZHANG Y, YAO R, WU Y et al. In situ rapid and deep self-reconstruction of Fe-doped hydrate NiMoO₄ for stable water oxidation at high current densities[J]. Chemical Engineering Journal, 142081(2023).

[36] WU X, ZHANG T, WEI J et al. Facile synthesis of Co and Ce dual-doped Ni₃S₂ nanosheets on Ni foam for enhanced oxygen evolution reaction[J]. Nano Research, 2130(2020).

[37] YU L, REN Z. Systematic study of the influence of iR compensation on water electrolysis[J]. Materials Today Physics, 100253(2020).

[38] ZHENG W. iR compensation for electrocatalysis studies: considerations and recommendations[J]. ACS Energy Letters, 1952(2023).

[39] YAO L, LI R, ZHANG H et al. Interface engineering of NiTe@CoFe LDH for highly efficient overall water-splitting[J]. International Journal of Hydrogen Energy, 32394(2022).

[40] LI H B, YU M H, WANG F X et al. Amorphous nickel hydroxide nanospheres with ultrahigh capacitance and energy density as electrochemical pseudocapacitor materials[J]. Nature Communications, 1894(2013).

[41] LIU W, LIU H, DANG L et al. Amorphous cobalt-iron hydroxide nanosheet electrocatalyst for efficient electrochemical and photo- electrochemical oxygen evolution[J]. Advanced Functional Materials, 1603904(2017).

[42] JIANG G, ZHENG C, JIN Z. Hexagonal CdS assembled with lamellar NiCo LDH form S-scheme heterojunction for photocatalytic hydrogen evolution[J]. Materials Science in Semiconductor Processing, 106128(2021).

[43] BO X, LI Y, CHEN X et al. Operando Raman spectroscopy reveals Cr-induced-phase reconstruction of NiFe and CoFe oxyhydroxides for enhanced electrocatalytic water oxidation[J]. Chemistry of Materials, 4303(2020).

[44] SHEN Y, DASTAFKAN K, SUN Q et al. Improved electrochemical performance of nickel-cobalt hydroxides by electrodeposition of interlayered reduced graphene oxide[J]. International Journal of Hydrogen Energy, 3658(2019).

[45] YANG F, SLIOZBERG K, SINEV I et al. Synergistic effect of cobalt and iron in layered double hydroxide catalysts for the oxygen evolution reaction[J]. ChemSusChem, 156(2017).

[46] QIN M, WANG Y, ZHANG H et al. Hierarchical Co(OH)F/CoFe-LDH heterojunction enabling high-performance overall water-splitting[J]. CrystEngComm, 6018(2022).

[47] FANG D, HE F, XIE J et al. Calibration of binding energy positions with C1s for XPS results[J]. Journal of Wuhan University of Technology-Materials Science Edition, 711(2020).

[48] JIN L, WANG Q, WANG K et al. Engineering NiMoO₄/NiFe LDH/rGO multicomponent nanosheets toward enhanced electrocatalytic oxygen evolution reaction[J]. Dalton Transactions, 6448(2022).

[49] YAO B, ZHANG W W, SHE L et al. Controlled direct electrodeposition of crystalline NiFe/amorphous NiFe-(oxy) hydroxide on NiMo alloy as a highly efficient bifunctional electrocatalyst for overall water splitting[J]. Chemical Engineering Journal, 137420(2022).

[50] DURAI L, GOPALAKRISHNAN A, BADHULIKA S. A low-cost and facile electrochemical sensor for the trace-level recognition of flutamide in biofluids using large-area bimetallic NiCo₂O₄ micro flowers[J]. New Journal of Chemistry, 3383(2022).

[51] GUO L, CHI J, ZHU J et al. Dual-doping NiMoO₄ with multi-channel structure enable urea-assisted energy-saving H₂ production at large current density in alkaline seawater[J]. Applied Catalysis B: Environmental, 121977(2023).

[52] LI Y, ZHAO Q, ZHANG M et al. Fabricating heterostructures for boosting the structure stability of Li-rich cathodes[J]. ACS Omega, 6720(2023).

[53] WANG J, CHEN K, PENG R et al. Synergistically enhanced alkaline hydrogen evolution reaction by coupling CoFe layered double hydroxide with NiMoO₄ prepared by two-step electrodeposition[J]. New Journal of Chemistry, 20825(2021).

[54] PAYNE B P, BIESINGER M C, MCINTYRE N S. X-ray photoelectron spectroscopy studies of reactions on chromium metal and chromium oxide surfaces[J]. Journal of Electron Spectroscopy and Related Phenomena, 29(2011).

[55] YI T, SHI L, HAN X et al. Approaching high-performance lithium storage materials by constructing hierarchical CoNiO₂@CeO₂ nanosheets[J]. Energy & Environmental Materials, 586(2021).

[56] YANG R, ZHOU Y, XING Y et al. Synergistic coupling of CoFe-LDH arrays with NiFe-LDH nanosheet for highly efficient overall water splitting in alkaline media[J]. Applied Catalysis B: Environmental, 131(2019).

[57] XU H, WU J, LI C et al. Investigation of polyaniline films doped with Fe³⁺ as the electrode material for electrochemical supercapacitors[J]. Electrochimica Acta, 14(2015).

[58] PENG L, YANG N, YANG Y et al. Atomic cation-vacancy engineering of NiFe-layered double hydroxides for improved activity and stability towards the oxygen evolution reaction[J]. Angewandte Chemie International Edition, 24612(2021).

[59] NIE F, LI Z, DAI X et al. Interfacial electronic modulation on heterostructured NiSe@CoFe LDH nanoarrays for enhancing oxygen evolution reaction and water splitting by facilitating the deprotonation of OH to O[J]. Chemical Engineering Journal, 134080(2022).

[60] ZHANG S, CEN M, WANG Q et al. Complete reconstruction of NiMoO₄/NiFe LDH for enhanced oxygen evolution reaction[J]. Chemical Communications, 3427(2023).

[61] CHEN L, DENG Z, CHEN Z et al. Building Ni₉S₈/MoS₂nanosheets decorated NiMoO₄ nanorods heterostructure for enhanced water splitting[J]. Advanced Materials Interfaces, 2101483(2021).

[62] LI Q, ZHANG K, LI X et al. Enhanced electrocatalytic performance of uniformly spherical Ni-MOF decorated with NiMoO₄ nanorods for oxygen evolution reaction[J]. Journal of Alloys and Compounds, 165941(2022).

[63] CHEN L, XU G C, XU G et al. Co-based coordination polymer-derived Co₃S₄ nanotube decorated with NiMoO₄ nanosheets for effective oxygen evolution reaction[J]. International Journal of Hydrogen Energy, 30463(2020).

[64] WANG F, LIU Z, ZHANG K et al. Ce-doped Ni-S nanosheets on Ni foam supported NiMoO₄ micropillars: fast electrodeposition, improved electrocatalytic activity and ultralong durability for the oxygen evolution reaction in various electrolytes[J]. Dalton Transactions, 17774(2021).

[65] YUAN J, CHEN S, ZHANG Y et al. Structural regulation of coupled phthalocyanine-porphyrin covalent organic frameworks to highly active and selective electrocatalytic CO₂ reduction[J]. Advanced Materials, 2203139(2022).

[66] ZHENG W, LIU M, LEE L Y S. Best practices in using foam-type electrodes for electrocatalytic performance benchmark[J]. ACS Energy Letters, 3260(2020).

[67] REN Y, WANG J, WANG W et al. Boride-mediated synthesis of a highly active cobalt-based electrocatalyst for alkaline hydrogen evolution reaction[J]. Journal of Materials Chemistry A, 1328(2023).

[68] WANG J, LI L, MENG L et al. Morphology engineering of nickel molybdate hydrate nanoarray for electrocatalytic overall water splitting: from nanorod to nanosheet[J]. RSC Advances, 35131(2018).

[69] YANG F, LUO Y, YU Q et al. A durable and efficient electrocatalyst for saline water splitting with current density exceeding 2000 mA·cm^-2[J]. Advanced Functional Materials, 2010367(2021).

[70] AHMED J, UBIADULLAH M, ALHOKBANY N et al. Synthesis of ultrafine NiMoO₄ nano-rods for excellent electro-catalytic performance in hydrogen evolution reactions[J]. Materials Letters, 126696(2019).

[71] AN L, FENG J, ZHANG Y et al. Epitaxial heterogeneous interfaces on N-NiMoO₄/NiS₂ nanowires/nanosheets to boost hydrogen and oxygen production for overall water splitting[J]. Advanced Functional Materials, 1805298(2019).

[72] JIANG R, ZHAO D, FAN H et al. Phosphorus doping and phosphates coating for nickel molybdate/nickel molybdate hydrate enabling efficient overall water splitting[J]. Journal of Colloid and Interface Science, 384(2022).

[73] DU X, LI N, ZHANG X. Controlled synthesis of Co₃O₄@NiMoO₄ core-shell nanorod arrays for efficient water splitting[J]. Dalton Transactions, 12071(2018).

[74] WANG X D, CHEN H Y, XU Y F 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, 7191(2017).