A facile approach to synthesize stable CNTs@MnO electrocatalyst for high energy lithium oxygen batteries

Luo, Wen; Chou, Shulei; Wang, Jiazhao; Zhai, Yuchun; Liu, Huan

doi:10.1038/srep08012

Cited by 35 publications

(13 citation statements)

References 39 publications

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“… 2012 ; Kodali et al. 2015 ). The activated Nrf2 translocates from the cytoplasm to the nucleus and binds to the ARE promoter region to positively upregulate the expression of cytoprotective factors like HO-1, which might be the reason for the upregulation of Nrf2 and HO-1 protein expression in RESV-treated rats.…”

Section: Discussionmentioning

confidence: 99%

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Resveratrol mitigates the oxidative stress mediated by hypoxic-ischemic brain injury in neonatal rats via Nrf2/HO-1 pathway

Gao

Wang

et al. 2018

Pharmaceutical Biology

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Context: Hypoxic-ischemic encephalopathy (HIE) has a high morbidity and mortality rate. Resveratrol possesses numerous biological properties including antioxidant, anti-inflammatory and neuroprotective activities. Objective: The current experiment investigates the neuroprotective efficacy of resveratrol (RESV) against HIE by modulating Nrf2/HO-1 pathway in neonatal rats. Materials and methods: Seven-day-old pups (n = 48) were divided into four groups. Group-I rats receiving 2% DMSO saline (sham), group-II rats underwent unilateral carotid artery ligation and hypoxia (92% N2 and 8% O2) for 2.5 h (hypoxia-ischemia; HI), group-III and IV rats received 20 (RESV 20 + HI) or 40 mg/kg (RESV 40 + HI; group-IV) of RESV via intraperitoneal injection (ip), respectively, for 7 days prior to HI induction. Results: Pre-treatment with RESV (20 or 40) markedly reduced (p < 0.01) the cerebral oedema (86.23–71.26 or 65.24%), infarct area (33.85–19.81 or 14.30%), lipid peroxidation products, inflammatory markers [IL-1β 186–110 or 82; IL-6 255–146 or 103; TNF-α 310–204 or 137; NF-κB 205–115 or 91) p65 subunit] and significantly restored (p < 0.01) the antioxidative status by enhancing the activities of glutathione peroxidase (GPx) 5.22–6.49 or 7.78; catalase (CAT) 51–55 or 59, superoxide dismutase (SOD) 2.5–3.05 or 3.25; through marked upregulation (p < 0.01) of heme oxygenase 1 (HO-1) 0.65–0.69 or 0.73; and nuclear factor erythroid 2 related factor 2 (Nrf2) 0.73–0.86 or 0.91. Discussion and Conclusions: RESV displays its neurotherapeutic potential via upregulating the protein expression of Nrf2 and HO-1 signalling pathway and thereby attenuates oxidative stress and inflammatory response in HI-induced neonatal rats.

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Section: Discussionmentioning

confidence: 99%

“… 2015 ; Kodali et al. 2015 ). Furthermore, RESV could readily cross through the blood-brain barrier (BBB), which makes it as a suitable candidate for a neuroprotective drug (Wang et al.…”

Section: Introductionmentioning

confidence: 99%

Resveratrol mitigates the oxidative stress mediated by hypoxic-ischemic brain injury in neonatal rats via Nrf2/HO-1 pathway

Gao

Wang

et al. 2018

Pharmaceutical Biology

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“…However, LABs are still at an early stage of development currently due to their unrealized specific capacity/energy density, rate discharge-ability, capacity sustainability as well as round-trip efficiency 4 6 . It has been identified that among various issues affecting LAB performance, low performing air cathode, especially the cathode catalyst, is the dominating challenge 7 8 9 10 although Li anode 11 , operating atmosphere 12 , binder 13 , cathode process 14 , and solvents 15 as well as lithium salts 16 in the electrolyte could also make contributions to the overall battery performance.…”

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confidence: 99%

Novel Flower-like Nickel Sulfide as an Efficient Electrocatalyst for Non-aqueous Lithium-Air Batteries

Yuan

Zhang

et al. 2015

Sci Rep

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In this paper, metal sulfide materials have been explored for the first time as a new choice of bifunctional cathode electrocatalyst materials for non-aqueous lithium-air batteries (LABs). Nickel sulfides with two different morphologies of flower-like (f-NiS) and rod-like (r-NiS) are successfully synthesized using a hydrothermal method with and without the assistance of cetyltrimethyl ammonium bromide. As LAB cathode catalysts, both f-NiS and r-NiS demonstrate excellent catalytic activities towards the formation and decomposition of Li2O2, resulting in improved specific capacity, reduced overpotentials and enhanced cycling performance when compared to those of pure Super P based electrode. Moreover, the morphology of NiS materials can greatly affect LAB performance. Particularly, the f-NiS is more favorable than r-NiS in terms of their application in LABs. When compared to both r-NiS and pure super P materials as LAB cathode materials, this f-NiS catalyst material can give the highest capacity of 6733 mA h g−1 and the lowest charge voltage of 4.24 V at the current density of 75 mA g−1 and also exhibit an quite stable cycling performance.

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“…3 Although noble metals such as Pt, Pd, Ru, Au and Ag display good catalytic activity towards the ORR and OER, their low abundance and high cost impede their scalability for practical applications. [4][5][6] In recent years, economically favorable transition metal oxide catalysts (such as MnO 2 , Co 3 O 4 , Fe 3 O 4 and their composites) 1,[6][7][8][9][10] and carbon-based materials (such as carbon black, graphene and carbon nanotubes) 3,[11][12][13] have attracted great attention as electrocatalysts for metal-air batteries. Among the transition metal oxides, MnO 2 has drawn particular attention as an electrocatalyst owing to its low cost, high abundance and excellent ORR and OER catalytic activities in alkaline media.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical urchin-shaped α-MnO2 on graphene-coated carbon microfibers: a binder-free electrode for rechargeable aqueous Na–air battery

et al. 2016

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With the increasing demand of cost-effective and high-energy devices, sodium-air (Na-air) batteries have attracted immense interest due to the natural abundance of sodium in contrast to lithium. In particular, an aqueous Na-air battery has fundamental advantage over non-aqueous batteries due to the formation of highly water-soluble discharge product, which improve the overall performance of the system in terms of energy density, cyclic stability and round-trip efficiency. Despite these advantages, the rechargeability of aqueous Na-air batteries has not yet been demonstrated when using non-precious metal catalysts. In this work, we rationally synthesized a binder-free and robust electrode by directly growing urchin-shaped MnO 2 nanowires on porous reduced graphene oxide-coated carbon microfiber (MGC) mats and fabricated an aqueous Na-air cell using the MGC as an air electrode to demonstrate the rechargeability of an aqueous Na-air battery. The fabricated aqueous Na-air cell exhibited excellent rechargeability and rate capability with a low overpotential gap (0.7 V) and high round-trip efficiency (81%). We believe that our approach opens a new avenue for synthesizing robust and binder-free electrodes that can be utilized to build not only metal-air batteries but also other energy systems such as supercapacitors, metal-ion batteries and fuel cells.

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A facile approach to synthesize stable CNTs@MnO electrocatalyst for high energy lithium oxygen batteries

Cited by 35 publications

References 39 publications

Resveratrol mitigates the oxidative stress mediated by hypoxic-ischemic brain injury in neonatal rats via Nrf2/HO-1 pathway

Resveratrol mitigates the oxidative stress mediated by hypoxic-ischemic brain injury in neonatal rats via Nrf2/HO-1 pathway

Novel Flower-like Nickel Sulfide as an Efficient Electrocatalyst for Non-aqueous Lithium-Air Batteries

Hierarchical urchin-shaped α-MnO2 on graphene-coated carbon microfibers: a binder-free electrode for rechargeable aqueous Na–air battery

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