Synthesis of NiMoS<sub>4</sub>for High-Performance Hybrid Supercapacitors

Du, Dongwei; Lan, Rong; Humphreys, John; Xu, Wei; Xie, Kui; Wang, Huanting; Tao, Shanwen

doi:10.1149/2.0071713jes

Cited by 62 publications

(25 citation statements)

References 47 publications

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“…As shown in Figure D, the diffusion‐controlled Faradic contribution can occupy 85% of total charge at a low scan rate of 1 mV/s, which then decreases with increasing scan rate, reaching 56% at a high‐scan rate of 20 mV/s. The Faradaic redox process dominates at lower scan rates while the capacitive effect at higher scan rates, which is similar with the previous report …”

Section: Resultsmentioning

confidence: 59%

“…The electrochemical behaviors of the assembled hybrid devices were recorded in a two‐electrode architecture. The specific capacity ( C M or C′ M , mAh/g), energy ( E , Wh/kg), and power ( P , W/kg) were determined in the light of Equations

C = \frac{i \times ∆ t}{3.6 \times m}

italicCs = \frac{i \times ∆ t}{∆ v \times m}

C_{M} = \frac{i \times ∆ t}{3.6 \times M}

C'_{M} = \frac{\int i \times normald V}{3.6 \times M \times S \times ∆ V}

E = \frac{C_{M} \times ∆ V}{2}

P = \frac{3600 \times E}{∆ t}

where i (A) and Δ t (s) refer to the discharge current and time; Δ v (V) and m (g) are the potential range and quality of the active materials in a single electrode; Δ V (V), S (V/s), and M (g) correspond to the potential range, scan rate, and total quality of the active materials for the device, respectively.…”

Section: Methodsmentioning

confidence: 89%

“…The specific capacity (C M or C 0 M , mAh/g), energy (E, Wh/kg), and power (P, W/kg) were determined in the light of Equations (3) to (5). [24][25][26]…”

Section: Electrochemical Measurementsmentioning

confidence: 99%

See 2 more Smart Citations

Boosting the energy storage performance of cobalt molybdate microspheres constructed from urotropin‐induced ultrathin nanosheets

Wei

Zhang

et al. 2019

Int J Energy Res

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Summary The CoMoO4 microspheres constructed from ultrathin nanosheets were synthesized by means of a simple chemical precipitation using urotropin (C6H12N4) as a soft template, which were used as the electrode materials for supercapacitors. It was found that the CoMoO4 sample with 3 mmol of added urotropin (vs 1 mmol CoCl2) exhibits the uppermost specific capacity value of 89 mAh/g at a current density of 0.25 A/g due to its unique mesoporous structure and large specific surface area. In addition, a hybrid supercapacitor was established by the CoMoO4 microspheres (positive electrode) and activated carbon (AC, negative electrode). The obtained CoMoO4//AC hybrid supercapacitor possesses a specific energy value of 34 Wh/kg at 375 W/kg. Most importantly, this device owns excellent cycle stability with no capacity decay observed after 10 000 cycles. These good electrochemical properties of CoMoO4 microspheres are promising in the practical use fields.

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Section: Resultsmentioning

confidence: 59%

C = \frac{i \times ∆ t}{3.6 \times m}

italicCs = \frac{i \times ∆ t}{∆ v \times m}

C_{M} = \frac{i \times ∆ t}{3.6 \times M}

C'_{M} = \frac{\int i \times normald V}{3.6 \times M \times S \times ∆ V}

E = \frac{C_{M} \times ∆ V}{2}

P = \frac{3600 \times E}{∆ t}

Section: Methodsmentioning

confidence: 89%

See 1 more Smart Citation

Boosting the energy storage performance of cobalt molybdate microspheres constructed from urotropin‐induced ultrathin nanosheets

Wei

Zhang

et al. 2019

Int J Energy Res

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“…when these is lack of renewable supply) [16]. Among these value-added products, carbon monoxide (CO) [17,18], hydrocarbons (CH4 or C2H4) [19,20], alcohols (CH3OH or C2H6O) [21,22] or formic acid (HCOOH) [23,24] can be obtained.…”

Section: Introductionmentioning

confidence: 99%

CO2 electroreduction to formate: Continuous single-pass operation in a filter-press reactor at high current densities using Bi gas diffusion electrodes

Díaz‐Sainz

Alvarez‐Guerra

Solla-Gullón

et al. 2019

Journal of CO2 Utilization

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“…). [68][69][70][71][72][73][74] It is worth mentioning that conducting polymers, as an important class of Faradaic materials, can exhibit both pseudocapacitive and battery-type charge storage. A recent in situ atomic force microscopy study revealed the hybrid battery-pseudocapacitive behavior of conducting polymers in ionic liquids, where the conducting polymers demonstrate pseudocapacitive behavior at a high charging condition, and a battery-type behavior at a low charging condition.…”

mentioning

confidence: 99%

Advances in Si and SiC Materials for High‐Performance Supercapacitors toward Integrated Energy Storage Systems

Nguyen

Aberoumand

Dao

2021

Small

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recently attracted considerable research attention thanks to its low mass density (2.33 g cm −3 ), nontoxicity, and biocompatibility. [6,7] Besides, the intrinsic semiconductor and tunable on-chip characteristics enable Si to be a central platform of several applications, including optoelectronics, [8,9] microelectronics, [10] smart sensors, [11,12] solar cells, [13][14][15] and drug-delivery systems. [16] From an energy perspective, seamless integration of energy storage systems onto these Si-based functional devices is highly desirable toward portable and wearable applications, or when the power supply is intermittent. Therefore, significant research has focused on Sibased energy storage, including Si-based batteries (mainly Li-ion batteries) and Sibased supercapacitors.In Li-ion batteries, Si has been intensively studied as a promising anode candidate due to the low working potential of 0.4 V (vs Li + /Li) and high theoretical capacity (3579 mAh g −1 ), compared to the conventional graphite anode. [17] However, as an alloy-type material, Si anode notoriously suffers from huge volume expansion/shrinkage during lithiation/delithiation (over 300%), leading to severe delamination and pulverization of electrodes, together with unstable and nonuniform solid electrolyte interphase layers. [18] These characteristics considerably affect the cyclic stability of Si-anode Li-ion batteries. Several strategies have been implemented to address the aforementioned challenges, including composite and coating materials design, [19][20][21][22][23][24] binder design, [25][26][27][28] and electrolyte modification. [29][30][31][32] These approaches nevertheless are mainly based on wet-chemistry methods with complicated synthesis techniques, which are not suitable for an integrated system. A very thin layer of Si has been proven to accommodate the mechanical stress during alloying/ dealloying. [33][34][35] Inspired by this concept, several studies have focused on thin film Si-anode batteries based on integrated circuit (IC)-compatible routes, and their potentials to be integrated with other functional Si-based devices. [36][37][38][39] However, the intricate charge storage mechanism of Si-based batteries inevitably limits their applications. In particular, batteries suffer from low power performance. Although parallel and/or series connections of batteries can guarantee high power, the device volume will be increased, which is not desirable for an integrated system. Furthermore, owing to their inferior stability and lifetime, batteries unavoidably require frequent replacements, meaning that they cannot be applied in devices such as bioimplant chips, biosensors, and harsh-environment sensors. [40,41] Silicon (Si), as the second most abundant element on Earth, has been a central platform of modern electronics owing to its low mass density and unique semiconductor properties. From an energy perspective, all-in-one integration of power supply systems onto Si-based functional devices is highly desirable, which inspires significant study ...

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Synthesis of NiMoS₄for High-Performance Hybrid Supercapacitors

Cited by 62 publications

References 47 publications

Boosting the energy storage performance of cobalt molybdate microspheres constructed from urotropin‐induced ultrathin nanosheets

Boosting the energy storage performance of cobalt molybdate microspheres constructed from urotropin‐induced ultrathin nanosheets

CO2 electroreduction to formate: Continuous single-pass operation in a filter-press reactor at high current densities using Bi gas diffusion electrodes

Advances in Si and SiC Materials for High‐Performance Supercapacitors toward Integrated Energy Storage Systems

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Synthesis of NiMoS4for High-Performance Hybrid Supercapacitors

Cited by 62 publications

References 47 publications

Boosting the energy storage performance of cobalt molybdate microspheres constructed from urotropin‐induced ultrathin nanosheets

Boosting the energy storage performance of cobalt molybdate microspheres constructed from urotropin‐induced ultrathin nanosheets

CO2 electroreduction to formate: Continuous single-pass operation in a filter-press reactor at high current densities using Bi gas diffusion electrodes

Advances in Si and SiC Materials for High‐Performance Supercapacitors toward Integrated Energy Storage Systems

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Synthesis of NiMoS₄for High-Performance Hybrid Supercapacitors