In-situ growth of Co3O4 nanowire-assembled clusters on nickel foam for aqueous rechargeable Zn-Co3O4 and Zn-air batteries

Tan, Peng; Chen, Bin; Xu, Haoran; Cai, Weizi; He, Wei; Ni, Meng

doi:10.1016/j.apcatb.2018.09.017

Cited by 176 publications

(108 citation statements)

References 62 publications

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“…In the long‐term cycling test at 1 A g −1 , the alkaline Co–Zn@CF cell exhibited an 80% capacity retention after 2000 full cycles. Using Co 3 O 4 nanowire‐assembled clusters as the cathode material, a Co–Zn battery could deliver a high energy density of 239 Wh kg −1 and a capacity retention of 84.1% after cycling for 1000 times . In another work, Liu et al reported a prototype Co x Ni 2− x S 2 //TiO 2 battery, which is a new battery system, by integrating reversible Li + and OH − insertion/extraction processes in the anode and cathode part, respectively .…”

Section: Device Designmentioning

confidence: 99%

Recent Advances in Rational Electrode Designs for High‐Performance Alkaline Rechargeable Batteries

Huang

Niu

et al. 2019

Adv Funct Materials

166

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In recent years, noticeable progress is achieved regarding alkaline rechargeable batteries (ARBs). Due to their merits of safety and low cost, ARBs are considered promising energy storage sources for large-scale grid energy storage, electric vehicles, and hybrid electric vehicles, as well as wearable and portable devices. While previous reviews have focused on specific topics associated with ARBs, providing a comprehensive review on rechargeable alkaline batteries is both timely and worthwhile. In this review, the recent progress in ARBs is summarized and the strategies underlying rational electrode designs for cathodes and anodes are highlighted, as well as their applications in full cells including flexible batteries. This review may pave the way for further designs of high-performance alkaline batteries. and a LiMn 2 O 4 cathode in 1994. [10] However, the electrolyzation of H 2 O limits the operating voltage window of ARABs, which are stable within ≈1.23 V. Furthermore, the electrode materials should be selected so that they avoid the electrolysis of H 2 O and maintain chemical stability in H 2 O. [3a] However, the preferred LIB cathodes, such as LiCoO 2 , LiMn 2 O 4 , and LiFePO 4 , which display a reversible capacity of 140, [11] 120, [12] and 170 mAh g −1 , [13] respectively, exhibit narrow working potentials and high stability in aqueous solutions but can take part in one-electron reactions at most. In addition, promising anode materials, such as VO 2 , [14] V 2 O 5 , [15] and H 2 V 3 O 8 , [16] possess the theoretical capacity or show the highest reversible capacity of only 161.6, 200, and 234 mAh g −1 , respectively, [3a] thereby leading to a full cell with a low energy density under the limited operating voltage window in aqueous electrolytes. Although the so-called "water-in-salt" electrolyte and its many variations can enable aqueous batteries with an electrochemical stability window of >3.0 V and an energy density of 200 Wh kg −1 , respectively, the ultrahighly concentrated electrolyte makes the cost too high for practical applications. [17] Since the early 20th century, alkaline rechargeable batteries (ARBs) based on nickel-iron (Ni-Fe) and nickel-cadmium (Ni-Cd) have been established and developed by Jüngner and Edison. [18] These batteries, which use alkaline solution as electrolytes, undergo an entirely different storage mechanism from ARABs and involve H + insertion/extraction and conversion processes from the alkali-metal ion insertion/extraction. Take the reaction mechanism of Ni-Fe batteries as an example

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Section: Device Designmentioning

confidence: 99%

Recent Advances in Rational Electrode Designs for High‐Performance Alkaline Rechargeable Batteries

Huang

Niu

et al. 2019

Adv Funct Materials

166

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“…Exploring non‐noble metal catalysts with desired activity and stability to replace costly Pt‐based ones for the oxygen reduction reaction (ORR) has been a significant challenge,4,5 for the large‐scale commercialization of energy‐related devices, such as rechargeable metal–air batteries6–9 and fuel cells 10,11. Transition metals and their derivatives, including alloys,12,13 oxides,14–16 chalcogenides,17–20 phosphides,21–23 carbides,24–26 and nitrides27–29 have attracted researcher's widely attention because of their intrinsic electrochemical properties and low price. Although the fact that these alternatives were proven effectively, their electrocatalytic performances for the ORR need to be further improved in comparison to that of Pt‐based catalysts, and are not satisfactory to meet the practical requirements.…”

Section: Introductionmentioning

confidence: 99%

Gadolinium‐Induced Valence Structure Engineering for Enhanced Oxygen Electrocatalysis

Wang

Yang

et al. 2020

Advanced Energy Materials

135

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Rare earth doped materials with unique electronic ground state configurations are considered emerging alternatives to conventional Pt/C for the oxygen reduction reaction (ORR). Herein, gadolinium (Gd)‐induced valence structure engineering is, for the first, time investigated for enhanced oxygen electrocatalysis. The Gd2O3–Co heterostructure loaded on N‐doped graphene (Gd2O3–Co/NG) is constructed as the target catalyst via a facile sol–gel assisted strategy. This synthetic strategy allows Gd2O3–Co nanoparticles to distribute uniformly on an N‐graphene surface and form intimate Gd2O3/Co interface sites. Upon the introduction of Gd2O3, the ORR activity of Gd2O3–Co/NG is significantly increased compared with Co/NG, where the half‐wave potential (E1/2) of Gd2O3–Co/NG is 100 mV more positive than that of Co/NG and even close to commercial Pt/C. The density functional theory calculation and spectroscopic analysis demonstrate that, owing to intrinsic charge redistribution at the engineered interface of Gd2O3/Co, the coupled Gd2O3–Co can break the OOH*–OH* scaling relation and result in a good balance of OOH* and OH* binding on Gd2O3–Co surface. For practical application, a rechargeable Zn–air battery employing Gd2O3–Co/NG as an air–cathode achieves a large power density and excellent charge–discharge cycle stability.

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“…One of the central challenges in the development of Zn–air batteries is the lack of effective bifunctional electrocatalysts during discharging (oxygen reduction reaction, ORR) and during charging (oxygen evolution reaction, OER) . Despite noble metal–based materials, such as Pt, Ru, and their derivatives, are known as the best oxygen catalysts, their high cost, scarcity, and insufficient bifunctional property limit their large‐scale application . Therefore, it is urgently needed to develop an effective non‐noble metal electrocatalyst for Zn–air batteries by a variety of strategies.…”

mentioning

confidence: 99%

Oxygen Vacancy–Rich In‐Doped CoO/CoP Heterostructure as an Effective Air Cathode for Rechargeable Zn–Air Batteries

Jin

Chen

et al. 2019

Small

159

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An efficient and low‐cost electrocatalyst for reversible oxygen electrocatalysis is crucial for improving the performance of rechargeable metal−air batteries. Herein, a novel oxygen vacancy–rich 2D porous In‐doped CoO/CoP heterostructure (In‐CoO/CoP FNS) is designed and developed by a facile free radicals–induced strategy as an effective bifunctional electrocatalyst for rechargeable Zn–air batteries. The electron spin resonance and X‐ray absorption near edge spectroscopy provide clear evidence that abundant oxygen vacancies are formed in the interface of In‐CoO/CoP FNS. Owing to abundant oxygen vacancies, porous heterostructure, and multiple components, In‐CoO/CoP FNS exhibits excellent oxygen reduction reaction activity with a positive half‐wave potential of 0.81 V and superior oxygen evolution reaction activity with a low overpotential of 365 mV at 10 mA cm−2. Moreover, a home‐made Zn–air battery with In‐CoO/CoP FNS as an air cathode delivers a large power density of 139.4 mW cm−2, a high energy density of 938 Wh kgZn−1, and can be steadily cycled over 130 h at 10 mA cm−2, demonstrating great application potential in rechargeable metal–air batteries.

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In-situ growth of Co3O4 nanowire-assembled clusters on nickel foam for aqueous rechargeable Zn-Co3O4 and Zn-air batteries

Cited by 176 publications

References 62 publications

Recent Advances in Rational Electrode Designs for High‐Performance Alkaline Rechargeable Batteries

Recent Advances in Rational Electrode Designs for High‐Performance Alkaline Rechargeable Batteries

Gadolinium‐Induced Valence Structure Engineering for Enhanced Oxygen Electrocatalysis

Oxygen Vacancy–Rich In‐Doped CoO/CoP Heterostructure as an Effective Air Cathode for Rechargeable Zn–Air Batteries

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