Defect-Engineered 3D hierarchical NiMo3S4 nanoflowers as bifunctional electrocatalyst for overall water splitting

Kong, Dezhi; Wang, Ye; Huang, Shaozhuan; Lim, Yew Von; Wang, Minglang; Xu, Tingting; Zang, Jinhao; Li, Xinjian; Yang, Hui

doi:10.1016/j.jcis.2021.10.020

Cited by 54 publications

(21 citation statements)

References 64 publications

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“…[21][22][23][24][25] It is worth noting that bimetallic metal sulfides display superior HER and OER performances compared with MoS 2 due to the tailored morphological and electronic effects upon the introduction of 3d transition metals (i.e., Co, Fe, or Ni). [26][27][28][29][30] In particular, a combination of MoS 2 and Co usually possesses excellent catalytic activity compared with Fe or Ni. A synergistic effect between MoS 2 and Co can adjust the electronic structure of MoS 2 and regulate the electron density of Mo, enhancing the HER kinetics efficiently and exposing more reactive sites for the OER, thus leading to remarkable bifunctional activity.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical CoMoS_3.13/MoS₂hollow nanosheet arrays as bifunctional electrocatalysts for overall water splitting

Cao

Chen

et al. 2022

Dalton Trans.

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Section: Introductionmentioning

confidence: 99%

Hierarchical CoMoS_3.13/MoS₂hollow nanosheet arrays as bifunctional electrocatalysts for overall water splitting

Cao

Chen

et al. 2022

Dalton Trans.

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“…These characteristics provide efficient mass and electron transport to enhance electrocatalytic activity. [ 213,228–237 ] Wang et al. [ 228 ] prepared PtNi nanoparticles (NPs) immobilized on 3D CNF mats (PtNi/CNFs) using an electrospinning method and followed by carbonization.…”

Section: Fabrication Of Nanostructures On Binder‐free Electrodesmentioning

confidence: 99%

“…These characteristics provide efficient mass and electron transport to enhance electrocatalytic activity. [213,[228][229][230][231][232][233][234][235][236][237] Wang et al [228] prepared PtNi nanoparticles (NPs) immobilized on 3D CNF mats (PtNi/CNFs) using an electrospinning method and followed by carbonization. CNFs provide distinctive advantages as a support material, including removing the need for polymer binders and providing a strong interaction between the NPs and CNFs.…”

Section: Carbon Nanofibers (Cnfs)/carbon Nanotubes (Cnts)mentioning

confidence: 99%

Developments and Perspectives on Robust Nano‐ and Microstructured Binder‐Free Electrodes for Bifunctional Water Electrolysis and Beyond

Chandrasekaran

Khandelwal

Fan

et al. 2022

Advanced Energy Materials

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Ni, Fe, and Cu foams to form robust binder-free electrodes for high-performance electrocatalytic reactions. [55][56][57][58][59] Interestingly, multidimensional electrocatalysts grown at the nanoscale on a range of current collectors, namely substrates and will benefit from a strong adhesion with the current collector to avoid catalyst delamination, limited active sites, and charge transfer blockage to enhance catalytic reactions (Figure 1b-d). [9,[60][61][62][63][64] Key Prospects, Insights, and the Dynamic Properties of Nano-and Microstructured Binder-Free Electrocatalysts and Their Direct Impact on Electrochemical ReactionsWater splitting has become one of the most important technologies to produce hydrogen (H 2 ) in high purity form. Water splitting includes two half-reactions, namely the cathodic HER and anodic OER. [8,65] Generally, the electrocatalytic performance and activity are highly sensitive to local reaction conditions and is largely valued by the energy required for adsorption/desorption of reaction intermediates and the rupture/creation of chemical bonds. Hence, the conventional powder form of precious metals such as Pt/C for the HER and RuO 2 or IrO 2 for the OER are considered ideal electrocatalysts. [66] In addition, several nonprecious 1D, 2D, and 3D nano-and microstructured powder catalysts such as MoS 2 , WS 2 , Ni 3 S 2 , NiCo 2 S 4 are also of interest for the HER and OER reactions. [54,[67][68][69][70][71][72][73][74] However, for commercial purposes and practical applica-

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“…This often leads to greater capacity/capacitance results than the pristine or single-phase composites, which is gaining a potential interest in the energy storage field. [36][37][38] Recently, Kong et al 39 and co-workers reported the growth of three-dimensional (3D) hierarchical NiMo 3 S 4 nanoflowers on conductive carbon textile. The grown NiMo 3 S 4 nanoflowers consisted of defective sites and were further employed as a bifunctional electrocatalyst for overall water splitting.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, Kong et al 39 and co‐workers reported the growth of three‐dimensional (3D) hierarchical NiMo 3 S 4 nanoflowers on conductive carbon textile. The grown NiMo 3 S 4 nanoflowers consisted of defective sites and were further employed as a bifunctional electrocatalyst for overall water splitting.…”

Section: Introductionmentioning

confidence: 99%

Transition metal dichalcogenide nanostructured electrodes without calcination for aqueous asymmetric supercapacitors

Hussain

Krishna

2022

Intl J of Energy Research

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The controlled development of mixed phases of transition metal dichalcogenide (TMDC) electrodes with hierarchical nanostructures overcomes the limited contribution of pure TMDC compositions, which is desirable to achieve superior electrochemical performance. Herein, the flower-like NiMo 3 S 4 /NiS 2 (NMS/NS) nanostructures with mixed-phase nature were grown on conductive carbon cloth (ie, NMS/NS@CC-210) at 210 C (24 h) by a hydrothermal method. Importantly, the uniform flower-like nanostructured NMS/NS@CC-210 electrode revealed battery-like performance with a superior specific capacitance of 1448 F g À1 (480 C g À1 at 1 A g À1 ) than the other NMS/NS@CC (180 C, 190 C, and 200 C) electrodes at different reaction temperatures as well as single counterparts of MoS 2 (MS)@CC-210 and NiS 2 (NS)@CC-210 electrodes. The presence of plenty of lattice defects in NMS/NS@CC-210 electrode structure is favored to the exposure of several electrochemical active sites for rapid transportation of electron and electrolyte diffusion, resulting in better cycling retention (83%) behavior than the pure MoS 2 @CC (50%) and NiS 2 @CC (68%) electrodes after successive 5000 cycles.

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Defect-Engineered 3D hierarchical NiMo3S4 nanoflowers as bifunctional electrocatalyst for overall water splitting

Cited by 54 publications

References 64 publications

Hierarchical CoMoS_3.13/MoS₂hollow nanosheet arrays as bifunctional electrocatalysts for overall water splitting

Hierarchical CoMoS_3.13/MoS₂hollow nanosheet arrays as bifunctional electrocatalysts for overall water splitting

Developments and Perspectives on Robust Nano‐ and Microstructured Binder‐Free Electrodes for Bifunctional Water Electrolysis and Beyond

Transition metal dichalcogenide nanostructured electrodes without calcination for aqueous asymmetric supercapacitors

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Defect-Engineered 3D hierarchical NiMo3S4 nanoflowers as bifunctional electrocatalyst for overall water splitting

Cited by 54 publications

References 64 publications

Hierarchical CoMoS3.13/MoS2hollow nanosheet arrays as bifunctional electrocatalysts for overall water splitting

Hierarchical CoMoS3.13/MoS2hollow nanosheet arrays as bifunctional electrocatalysts for overall water splitting

Developments and Perspectives on Robust Nano‐ and Microstructured Binder‐Free Electrodes for Bifunctional Water Electrolysis and Beyond

Transition metal dichalcogenide nanostructured electrodes without calcination for aqueous asymmetric supercapacitors

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Hierarchical CoMoS_3.13/MoS₂hollow nanosheet arrays as bifunctional electrocatalysts for overall water splitting

Hierarchical CoMoS_3.13/MoS₂hollow nanosheet arrays as bifunctional electrocatalysts for overall water splitting