Catkin-derived mesoporous carbon-supported molybdenum disulfide and nickel hydroxyl oxide hybrid as a bifunctional electrocatalyst for driving overall water splitting

Liu, Jiameng; Zhao, Shuangrun; Wang, Changbao; Ma, Yashen; He, Linghao; Liu, Baozhong; Zhang, Zhihong

doi:10.1016/j.jcis.2021.10.069

Cited by 23 publications

(17 citation statements)

References 62 publications

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“…The huge consumption of unsustainable carbon-emitting fossil fuels is the primary culprit for the current energy crunch and environmental concerns. , Hydrogen, a carbon-free energy source is a favorable response to confront the energy crisis and environmental issues such as global warming. , Discovering a completely new, environmentally benign, cheap, and efficacious strategy to generate hydrogen is a persistent challenge. Electrochemical water splitting stands out among other systems regarding its benefits including hydrogen production with high purity and leaving no carbon footprints. − This process consists of two half-reactions, namely, hydrogen evolution reaction (HER) on the cathode and oxygen evolution reaction (OER) on the anode. , So far, precious-metal-based electrocatalysts such as Pt/C and RuO 2 have been identified as state-of-the-art materials to drive the reaction and lower the overpotential higher than the theoretical one, 1.23 V. , …”

Section: Introductionmentioning

confidence: 99%

Microwave-Assisted Auto-Combustion Synthesis of Binary/Ternary Co_xNi_1−xFerrite for Electrochemical Hydrogen and Oxygen Evolution

et al. 2021

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Enormous efforts have been dedicated to engineering low-cost and efficient electrocatalysts for both hydrogen evolution and oxygen evolution reactions (HER and OER, respectively). For this, the current contribution reports the successful synthesis of binary/ternary metal ferrites (Co x Ni 1−x Ferrite; x = 0.0, 0.1, 0.3, 0.5, 0.7, and 1.0) by a simple one-step microwave technique and subsequently discusses its chemical and electrochemical properties. The X-ray diffraction analysis substantiated the phase purity of the as-obtained catalysts with various compositions. Additionally, the morphology of the nanoparticles was identified via transmission electron microscopy. Further, the vibrating sample magnetometer justified the ferromagnetic character of the as-prepared products. The electrochemical measurements revealed that the as-prepared materials required the overpotentials of 422−600 and 419−467 mV for HER and OER, respectively, to afford current densities of 10 mA cm −2 . In the general sense, Ni cation substitution with Co influenced favorably toward both HER and OER. Among all synthesized electrocatalysts, Co 0.9 Ni 0.1 Ferrite displayed the highest performance in terms of OER in 1 M KOH solution, which is related to the synergistic effect of multiple parameters including the optimal substitution amount of Co, the highest Brunauer−Emmett−Teller surface area, the smallest particle size among all samples (26.71 nm), and the lowest charge transfer resistance. The successful synthesis of ternary ferrites carried out for the first time via a microwave-assisted auto-combustion route opens up a new path for their applications in renewable energy technologies.

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Section: Introductionmentioning

confidence: 99%

Microwave-Assisted Auto-Combustion Synthesis of Binary/Ternary Co_xNi_1−xFerrite for Electrochemical Hydrogen and Oxygen Evolution

et al. 2021

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“…Liu et al developed the MoS 2 @NiOOH hybrid on mesoporous carbon support synthesized from catkin (MoS 2 @NiOOH@C-MC) via a three-step process (Fig. 14d) [194]. By combining the high OER activity of NiOOH, HER activity of MoS 2 , as well as C-MC's efficient charge transfer kinetics, the multicomponent MoS 2 @NiOOH@C-MC performs better than the Pt/C||IrO 2 couple for OWE regarding catalytic activity and performance durability (Fig.…”

Section: Waste-derived Carbon-based Heterostructures For Owementioning

confidence: 99%

“…e Stability test of the Pt/C||IrO 2 and MoS 2 @NiOOH@C-MC||MoS 2 @NiOOH@C-MC couples for OWE, at 10 mA cm −2 . f The time-dependent of the experimental and theoretical H 2 and O 2 production amounts during OWE using the MoS 2 @NiOOH@C-MC catalyst[194]. Copyright 2022, Elsevier.…”

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confidence: 99%

Waste-Derived Catalysts for Water Electrolysis: Circular Economy-Driven Sustainable Green Hydrogen Energy

Chen

Yun

et al. 2022

Nano-Micro Lett.

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The sustainable production of green hydrogen via water electrolysis necessitates cost-effective electrocatalysts. By following the circular economy principle, the utilization of waste-derived catalysts significantly promotes the sustainable development of green hydrogen energy. Currently, diverse waste-derived catalysts have exhibited excellent catalytic performance toward hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and overall water electrolysis (OWE). Herein, we systematically examine recent achievements in waste-derived electrocatalysts for water electrolysis. The general principles of water electrolysis and design principles of efficient electrocatalysts are discussed, followed by the illustration of current strategies for transforming wastes into electrocatalysts. Then, applications of waste-derived catalysts (i.e., carbon-based catalysts, transitional metal-based catalysts, and carbon-based heterostructure catalysts) in HER, OER, and OWE are reviewed successively. An emphasis is put on correlating the catalysts’ structure–performance relationship. Also, challenges and research directions in this booming field are finally highlighted. This review would provide useful insights into the design, synthesis, and applications of waste-derived electrocatalysts, and thus accelerate the development of the circular economy-driven green hydrogen energy scheme.

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“…42 More recently, the MoS 2 heterojunction with NiOOH has been successfully assembled on catkin-derived mesoporous material to develop an excellent bifunctional electrocatalyst for overall water splitting. 38 Nevertheless, there is quite a challenge to synergistically regulate the active sites and water dissociation toward MoS 2 -based materials for realizing highly efficient alkaline HER. It originates from the following two aspects; one is that the more nickel atoms are doped into MoS 2 , the more Ni(OH) 2 will be formed in subsequent alkaline HER.…”

Section: ■ Introductionmentioning

confidence: 99%

“…On the other hand, water dissociation is commonly considered as a critical rate-determining step in alkaline HER. It has been proven that diverse Ni species, such as Ni(OH) 2, Ni(HCO 3 ) 2, nickel hydroxyl oxide (NiOOH), and NiO, − can exhibit strong water dissociation ability under such conditions. Following this viewpoint, the strategy for integrating Ni(OH) 2 with MoS 2 has been demonstrated to fabricate efficient electrocatalysts with a low energy barrier in the initial water decomposition step .…”

Section: Introductionmentioning

confidence: 99%

Engineering Rich Active Sites and Efficient Water Dissociation for Ni-Doped MoS₂/CoS₂ Hierarchical Structures toward Excellent Alkaline Hydrogen Evolution

et al. 2022

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Besides improving charge transfer, there are two key factors, such as increasing active sites and promoting water dissociation, to be deeply investigated to realize high-performance MoS 2 -based electrocatalysts in alkaline hydrogen evolution reaction (HER). Herein, we have demonstrated the synergistic engineering to realize rich unsaturated sulfur atoms and activated O−H bonds toward the water for Ni-doped MoS 2 /CoS 2 hierarchical structures by an approach to Ni doping coupled with in situ sulfurizing for excellent alkaline HER. In this work, the Ni-doped atoms are evolved into Ni(OH) 2 during alkaline HER. Interestingly, the extra unsaturated sulfur atoms will be modulated into MoS 2 nanosheets by breaking Ni−S bonds during the formation of Ni(OH) 2 . On the other hand, the higher the mass of the Ni precursor (m Ni ) for the fabrication of our samples, the more Ni(OH) 2 is evolved, indicating a stronger ability for water dissociation of our samples during alkaline HER. Our results further reveal that regulating m Ni is crucial to the HER activity of the assynthesized samples. By regulating m Ni to 0.300 g, a balance between increasing active sites and promoting water dissociation is achieved for the Ni-doped MoS 2 /CoS 2 samples to boost alkaline HER. Consequently, the optimal samples present the highest HER activity among all counterparts, accompanied by reliable long-term stability. This work will promise important applications in the field of electrocatalytic hydrogen evolution in alkaline environments.

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Catkin-derived mesoporous carbon-supported molybdenum disulfide and nickel hydroxyl oxide hybrid as a bifunctional electrocatalyst for driving overall water splitting

Cited by 23 publications

References 62 publications

Microwave-Assisted Auto-Combustion Synthesis of Binary/Ternary Co_xNi_1−xFerrite for Electrochemical Hydrogen and Oxygen Evolution

Microwave-Assisted Auto-Combustion Synthesis of Binary/Ternary Co_xNi_1−xFerrite for Electrochemical Hydrogen and Oxygen Evolution

Waste-Derived Catalysts for Water Electrolysis: Circular Economy-Driven Sustainable Green Hydrogen Energy

Engineering Rich Active Sites and Efficient Water Dissociation for Ni-Doped MoS₂/CoS₂ Hierarchical Structures toward Excellent Alkaline Hydrogen Evolution

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Catkin-derived mesoporous carbon-supported molybdenum disulfide and nickel hydroxyl oxide hybrid as a bifunctional electrocatalyst for driving overall water splitting

Cited by 23 publications

References 62 publications

Microwave-Assisted Auto-Combustion Synthesis of Binary/Ternary CoxNi1−xFerrite for Electrochemical Hydrogen and Oxygen Evolution

Microwave-Assisted Auto-Combustion Synthesis of Binary/Ternary CoxNi1−xFerrite for Electrochemical Hydrogen and Oxygen Evolution

Waste-Derived Catalysts for Water Electrolysis: Circular Economy-Driven Sustainable Green Hydrogen Energy

Engineering Rich Active Sites and Efficient Water Dissociation for Ni-Doped MoS2/CoS2 Hierarchical Structures toward Excellent Alkaline Hydrogen Evolution

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Product

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Microwave-Assisted Auto-Combustion Synthesis of Binary/Ternary Co_xNi_1−xFerrite for Electrochemical Hydrogen and Oxygen Evolution

Microwave-Assisted Auto-Combustion Synthesis of Binary/Ternary Co_xNi_1−xFerrite for Electrochemical Hydrogen and Oxygen Evolution

Engineering Rich Active Sites and Efficient Water Dissociation for Ni-Doped MoS₂/CoS₂ Hierarchical Structures toward Excellent Alkaline Hydrogen Evolution