Metal Organic Framework-Based CoNi Composites on Carbonized Wood as Advanced Freestanding Electrodes for Supercapacitors

Tian, Ren‐Rong; Duan, Chengyuan; Feng, Yi; Mu, Chundi; Yao, Jianfeng

doi:10.1021/acs.energyfuels.1c00186

Cited by 20 publications

(8 citation statements)

References 28 publications

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“…It is worth noting that the 0.6 mm thick monolithic electrode is also an important performance indicator when assembling the SC. In order to further evaluate the energy storage performance of materials, the data of energy/power density of different SC devices are compared in Table S2 [ 39 , 47 , 48 , 49 , 50 , 51 , 52 , 53 ]. The excellent energy density of Zn-Co 3 O 4 @CW-230//Zn-Co 3 O 4 @CW-230 SC is significantly higher than other SC equipment.…”

Section: Resultsmentioning

confidence: 99%

Semi-Embedding Zn-Co3O4 Derived from Hybrid ZIFs into Wood-Derived Carbon for High-Performance Supercapacitors

et al. 2022

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Transition metal oxides (TMOs) can provide high theoretical capacitance due to the change of multiple valence states of transition metals. However, their intrinsic drawbacks, including poor electrical conductivity, lower energy density, and huge volume expansion, will result in the pulverization of electrode materials and restricted electrochemical kinetics, thus leading to poor rate capability and rapid capacity fading. Composite electrodes based on transition metal oxides and carbon-based materials are considered to be promising candidates for overcoming these limitations. Herein, we reported a preparation method of hybrid ZIFs derived Zn-doped Co3O4/carbon (Zn-Co3O4/C-230) particles semi-embedded in wood-derived carbon skeleton for integrated electrodes. A large specific surface area, excellent conductivity, and electrochemical stability provide a larger electrochemical activity and potential window for the electrode. Prepared Zn-Co3O4@CW-230 electrode (0.6 mm thick) displays ultrahigh area specific capacitances of 7.83 and 6.46 F cm−2 at the current densities of 5 and 30 mA cm−2, respectively. Moreover, a symmetric supercapacitor assembled by two identical Zn-Co3O4@CW-230 electrodes delivers a superior area-specific capacitance of 2.61 F cm−2 at the current densities of 5 mA cm−2 and great energy densities of 0.36 mWh cm−2 (6.0 mWh cm−3) at 2.5 mW cm−2, while maintaining 97.3% of initial capacitance over 10,000 cycles. It notably outperforms those of most carbon-based metal oxides, endowing the Zn-Co3O4@CW-230 with extensive prospects for practical application.

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Section: Resultsmentioning

confidence: 99%

Semi-Embedding Zn-Co3O4 Derived from Hybrid ZIFs into Wood-Derived Carbon for High-Performance Supercapacitors

et al. 2022

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“…Moreover, the hydrophilicity and porous connectivity of CW@CoNiP‐C can be enhanced with the existence of CoNiP nanoparticles to guarantee a high rate capacitance. [ 95 ]…”

Section: Wood‐structured Thick Electrode For Emerging Energy Storage ...mentioning

confidence: 99%

“…Reproduced with permission. [ 95 ] Copyright 2021, American Chemical Society. e) Fabrication procedure of carbonized porous wood as an effective scaffold for loading flower‐like CoS, NiS nanofibers with Co, Ni nanoparticles, CLFW@(Co, Ni)‐(CoS, NiS) hybrid, served as electrode material for high‐performance supercapacitors.…”

Section: Wood‐structured Thick Electrode For Emerging Energy Storage ...mentioning

confidence: 99%

“…Moreover, the hydrophilicity and porous connectivity of CW@CoNiP-C can be enhanced with the existence of CoNiP nanoparticles to guarantee a high rate capacitance. [95] Additionally, Xiong et al loaded flower-like CoS, NiS nanofibers attaching Co, Ni nanoparticles onto carbonized ligninfree wood to prepare a hybrid electrode for high-performance supercapacitor (Figure 11e). Note that, the naturally tubular structure of porous wood triggered the low-tortuous channels for electrolyte ions.…”

Section: Supercapacitorsmentioning

confidence: 99%

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Rational Design of Wood‐Structured Thick Electrode for Electrochemical Energy Storage

Lei

Ming

et al. 2022

Adv Funct Materials

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It is a natural choice to realize the vision of wood‐inspired functional materials for energy engineering. Apart from being naturally abundant, renewable, and biodegradable, wood‐based devices possess hierarchically porous structures, mechanical integrity and flexibility, and tunable functionalities, holding the potential to significantly push the boundaries of efficient energy storage and conversion. Meanwhile, the hunting of batteries with superior energy/power output to redeem the ever‐growing energy demand has ignited a thick electrode conception, which is deemed as a burgeoning technic to maneuver the maximum active material loading at the device‐scale. As an integrated carbonaceous scaffold with hierarchical architecture and aligned channels, wood thick electrode ameliorates the ion/electron conductivities to strengthen the charge transfer kinetics. In this review, the rational design and unique prospects in the construction of wood thick electrodes that concerns over structural optimization and low‐tortuosity for integrated cell configuration are summarized. To trap the structure‐feature‐performance interplays, advanced wood thick electrode that opens an avenue in emerging energy chemistries such as supercapacitors, lithium‐ion/metal and post‐rechargeable batteries are also spotlighted with a standpoint on task‐tailored modification. Ultimately, the blueprint over ongoing challenges and upcoming opportunities for wood‐structured thick electrode is drawn to broaden their brand‐new energy talents.

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“…37 However, the reported materials contain only small amounts of MOF. There are also reports of MOF-composite materials using wood-based materials such as wood aerogel and carbonized wood or carbonized MOF@wood materials, [38][39][40][41][42][43][44] but most of these materials lose mechanical stability after delignification or carbonization. Huang et al were able to increase the MOF loading without delignification of the wood by deploying the method of localized magnetic induction heating (LMIH), where the wood was first functionalized by Fe 2 O 3 nanoparticles and the MOF synthesis was conducted in a magnetic field.…”

Section: Introductionmentioning

confidence: 99%

Wood modification for the synthesis of MOF@wood composite materials with increased metal–organic framework (MOF) loading

Spieß

Wiebe

Iwaschko

et al. 2022

Mol. Syst. Des. Eng.

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Metal Organic Framework-Based CoNi Composites on Carbonized Wood as Advanced Freestanding Electrodes for Supercapacitors

Cited by 20 publications

References 28 publications

Semi-Embedding Zn-Co3O4 Derived from Hybrid ZIFs into Wood-Derived Carbon for High-Performance Supercapacitors

Semi-Embedding Zn-Co3O4 Derived from Hybrid ZIFs into Wood-Derived Carbon for High-Performance Supercapacitors

Rational Design of Wood‐Structured Thick Electrode for Electrochemical Energy Storage

Wood modification for the synthesis of MOF@wood composite materials with increased metal–organic framework (MOF) loading

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