A Stable Imide-Linked Metalphthalocyanine Framework with Atomically Dispersed Fe-N4 Sites and Ultrafine Nickel Oxide Nanoparticles to Boost Reversible Oxygen Electrocatalysis with a Record-Low ΔE of 0.59 V
{"title":"A Stable Imide-Linked Metalphthalocyanine Framework with Atomically Dispersed Fe-N4 Sites and Ultrafine Nickel Oxide Nanoparticles to Boost Reversible Oxygen Electrocatalysis with a Record-Low ΔE of 0.59 V","authors":"Zhen Zhang, Tianping Wang, Weiwen Wang, Xiangnan Wang, Xianglin Luo, Chong Cheng, Xikui Liu","doi":"10.1002/aenm.202300325","DOIUrl":null,"url":null,"abstract":"<p>Metallophthalocyanines (MPcs) hold great promise in the electrochemical reduction of oxygen; however, their practical applications in energy storage and conversion are still limited by their low stability and poor water oxidation activity. Herein, a novel stable 2D imide-linked metalphthalocyanine framework (denoted as FePc-PI) is reported, that has atomically dispersed Fe-N<sub>4</sub> sites deposited on the KB substrate via in situ growth, followed by incorporation of ultrafine nickel oxide nanoparticles (NiO<i><sub>x</sub></i>@FePc-PI/KB) to induce bifunctional electrocatalytic activities for the oxygen reduction reaction and oxygen evolution reaction. Benefitting from the robust aromatic backbone, the engineered catalytic centers, and the unique electronic structures owing to the interaction between the Fe-N<sub>4</sub> sites and NiO<i><sub>x</sub></i> species, the newly developed NiO<i><sub>x</sub></i>@FePc-PI/KB catalyst exhibits excellent reversible oxygen bifunctional activity (<i>E</i><sub>1/2</sub> = 0.926 V, <i>η</i><sub>10</sub> = 285 mV), delivering a record-low overpotential difference (Δ<i>E</i>) of 0.59 V, which far exceeds the noble-metal-based Pt/C+RuO<sub>2</sub> benchmark (Δ<i>E</i> = 0.77 V) and represents the highest level for reported bifunctional electrocatalysts. Furthermore, the rechargeable aqueous Zn-air batteries assembled with the NiO<i><sub>x</sub></i>@FePc-PI/KB catalyst deliver a high peak power density of 232.9 mW cm<sup>−2</sup> and long-term cycling durability over 1400 cycles. Flexible all-solid-state Zn-air batteries exhibit stable cycling at various flat/bent/flat states, thus demonstrating their excellent prospects in realistic implementations.</p>","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":null,"pages":null},"PeriodicalIF":24.4000,"publicationDate":"2023-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Energy Materials","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/aenm.202300325","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 2
Abstract
Metallophthalocyanines (MPcs) hold great promise in the electrochemical reduction of oxygen; however, their practical applications in energy storage and conversion are still limited by their low stability and poor water oxidation activity. Herein, a novel stable 2D imide-linked metalphthalocyanine framework (denoted as FePc-PI) is reported, that has atomically dispersed Fe-N4 sites deposited on the KB substrate via in situ growth, followed by incorporation of ultrafine nickel oxide nanoparticles (NiOx@FePc-PI/KB) to induce bifunctional electrocatalytic activities for the oxygen reduction reaction and oxygen evolution reaction. Benefitting from the robust aromatic backbone, the engineered catalytic centers, and the unique electronic structures owing to the interaction between the Fe-N4 sites and NiOx species, the newly developed NiOx@FePc-PI/KB catalyst exhibits excellent reversible oxygen bifunctional activity (E1/2 = 0.926 V, η10 = 285 mV), delivering a record-low overpotential difference (ΔE) of 0.59 V, which far exceeds the noble-metal-based Pt/C+RuO2 benchmark (ΔE = 0.77 V) and represents the highest level for reported bifunctional electrocatalysts. Furthermore, the rechargeable aqueous Zn-air batteries assembled with the NiOx@FePc-PI/KB catalyst deliver a high peak power density of 232.9 mW cm−2 and long-term cycling durability over 1400 cycles. Flexible all-solid-state Zn-air batteries exhibit stable cycling at various flat/bent/flat states, thus demonstrating their excellent prospects in realistic implementations.
期刊介绍:
Established in 2011, Advanced Energy Materials is an international, interdisciplinary, English-language journal that focuses on materials used in energy harvesting, conversion, and storage. It is regarded as a top-quality journal alongside Advanced Materials, Advanced Functional Materials, and Small.
With a 2022 Impact Factor of 27.8, Advanced Energy Materials is considered a prime source for the best energy-related research. The journal covers a wide range of topics in energy-related research, including organic and inorganic photovoltaics, batteries and supercapacitors, fuel cells, hydrogen generation and storage, thermoelectrics, water splitting and photocatalysis, solar fuels and thermosolar power, magnetocalorics, and piezoelectronics.
The readership of Advanced Energy Materials includes materials scientists, chemists, physicists, and engineers in both academia and industry. The journal is indexed in various databases and collections, such as Advanced Technologies & Aerospace Database, FIZ Karlsruhe, INSPEC (IET), Science Citation Index Expanded, Technology Collection, and Web of Science, among others.