Recent Progress in Oxygen Electrocatalysts for Zinc–Air Batteries

Yang, Dongjiang; Zhang, Lijie; Yan, Xuecheng; Yao, Xiangdong

doi:10.1002/smtd.201700209

Cited by 191 publications

(123 citation statements)

References 136 publications

(109 reference statements)

Supporting

Mentioning

123

Contrasting

Order By: Relevance

“…With the mounting influence of energy crisis and environmental pollution, it is urgent to design a series of new energy materials and technology which are sustainable and renewable 1–3. 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.…”

Section: Introductionmentioning

confidence: 99%

Gadolinium‐Induced Valence Structure Engineering for Enhanced Oxygen Electrocatalysis

Wang

Yang

et al. 2020

Advanced Energy Materials

124

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 99%

Gadolinium‐Induced Valence Structure Engineering for Enhanced Oxygen Electrocatalysis

Wang

Yang

et al. 2020

Advanced Energy Materials

124

View full text Add to dashboard Cite

show abstract

“…[85] [a] h = Overpotential; CC = carbon cloth;C F = carbon fiber;C NT = carbon nanotube;N iF = nickelf oam;N W = nanowire;O P = onset potential;T S = Tafel slope. In the charging procedure, H 2 Oi so xidizeda tt he anode and them etal is deposited (reduced)a tt he cathode.…”

Section: Future Perspectivesmentioning

confidence: 99%

Nickel‐Based Transition Metal Nitride Electrocatalysts for the Oxygen Evolution Reaction

et al. 2019

View full text Add to dashboard Cite

Electrocatalysis is an efficient and promising means of energy conversion, with minimal environmental footprint. To enhance reaction rates, catalysts are required to minimize overpotential. Alternatives to noble metal electrocatalysts are essential to address these needs on a large scale. In this context, transition metal nitride (TMN) nanoparticles have attracted much attention owing to their high catalytic activity, distinctive electronic structures, and enhanced surface morphologies. Nickel‐based materials are an ideal choice for electrocatalysts given nickel's abundance and low cost in comparison to noble metals. In this Minireview, advancements made specifically in Ni‐based binary and ternary TMNs as electrocatalysts for the oxygen evolution reaction (OER) are critically evaluated. When used as OER electrocatalysts, Ni‐based nanomaterials with 3 D architectures on a suitable support (e.g., a foam support) speed up electron transfer as a result of well‐oriented crystal structures and also assist intermediate diffusion, during reaction, of evolved gases. 2 D Ni‐based nitride sheet materials synthesized without supports usually perform better than 3 D supported electrocatalysts. The focus of this Minireview is a systematic description of OER activity for state‐of‐the‐art Ni‐based nitrides as nanostructured electrocatalysts.

show abstract

“…Compared with LIBs, the commercialization future of non‐Li metal–O 2 batteries is still vague, which is primarily due to the slow intrinsic reaction kinetics, the high overpotentials, and the low round‐trip efficiency of the oxygen redox chemistry in these batteries. Currently, one of major research goals for non‐Li metal–O 2 batteries is the exploration of efficient catalysts for enhancing the reversibility of oxygen‐involved reactions, which has been verified to be an effective solution that could significantly boost the overall battery performance …”

Section: Introductionmentioning

confidence: 99%

Toward Promising Cathode Catalysts for Nonlithium Metal–Oxygen Batteries

Mei

Liao

Liang

et al. 2019

Advanced Energy Materials

110

View full text Add to dashboard Cite

The success of Li–air/O2 batteries has brought extensive attention to the development of various promising non‐Li metal–O2 batteries, such as Zn–O2, Al–O2, Mg–O2 batteries, etc., which have exhibited unique advantages, such as low production cost, high energy density, and much enhanced safety. The versatile non‐Li metal–O2 batteries provide a better opportunity for meeting the practical requirements for sustainable energy supplies in various applications. A high‐performance cathode in non‐Li metal–O2 batteries that can effectively trigger both oxygen reduction and evolution reactions and thus boost the overall battery performance is of great research interest. In this article, a comprehensive review on the development of Li‐free metal–O2 batteries and particularly focusing on the oxygen catalytic cathodes for both primary and secondary non‐Li metal–O2 batteries is carefully performed. The current challenges and potential solutions are also outlined and proposed. Through carefully selecting and rationally designing promising catalytic cathodes, a series of non‐Li metal–oxygen batteries toward practical energy storage applications are highly anticipated.

show abstract

Recent Progress in Oxygen Electrocatalysts for Zinc–Air Batteries

Cited by 191 publications

References 136 publications

Gadolinium‐Induced Valence Structure Engineering for Enhanced Oxygen Electrocatalysis

Gadolinium‐Induced Valence Structure Engineering for Enhanced Oxygen Electrocatalysis

Nickel‐Based Transition Metal Nitride Electrocatalysts for the Oxygen Evolution Reaction

Toward Promising Cathode Catalysts for Nonlithium Metal–Oxygen Batteries

Contact Info

Product

Resources

About