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| 1 | Self-magnetic-attracted NixFe(1-x)@NixFe(1-x)O nanoparticles on nickel foam as highly active and stable electrocatalysts towards alkaline oxygen evolution reaction显示文摘A facile self-magnetic-attracted approach was developed for highly active and stable NixFe(1-x)@NixFe(1-x)O/NF electrocatalysts towards alkaline oxygen evolution reaction.Firstly,a low-cost and scalable synthesis method was developed to synthesis 4-5 nm hydrophilic NixFe(1-x)@NixFe(1-x)O core-shell nanocrystals with superparamagnetism.Then,these NixFe(1-x)@NixFe(1-x)O nanoparticles(NPs)could be easily supported on nickel foam without any binders or additives.Optimized by the composition effect,the Ni0.7Fe0.3@Ni0.7Fe0.3O/NF exhibits excellent activity for oxygen evolution reaction(OER),requires only 215 mV at 10 mA·cm^-2 and 260 mV at 100 mA-cm-2,with a Tafel slope of 47.4 mV·dec^-1 in 1.0 M KOH.Moreover,the underlying mechanism was carefully studied by X-ray diffraction(XRD),Raman,X-ray photoelectron spectroscopy(XPS)and X-ray absorption near-edge spectra(XANES)analysis and density functional theory(DFT)calculations.Due to the self-magnetic attraction,the catalyst shows outstanding stability throughout the electrocatalysis,surpassing than most self-supported catalysts.This work provides a new strategy for the construction of highly active and stable OER electrocatalysts,the nearly monodisperse magnetic NixFe(1-x)@NixFe(1-x)O NPs also serve an ideal building block for fundamental research of nickel-iron based catalyst. | Zuobo Yang Xin Liang | 2020 | Nano Research2020，13，2： | 5 |
| 2 | Recent Advances on MOF Derivatives for Non-Noble Metal Oxygen Electrocatalysts in Zinc-Air Batteries显示文摘Oxygen electrocatalysts are of great importance for the air electrode in zinc-air batteries(ZABs).Owing to the high specific surface area,controllable pore size and unsaturated metal active sites,metal-organic frameworks(MOFs)derivatives have been widely studied as oxygen electrocatalysts in ZABs.To date,many strategies have been developed to generate efficient oxygen electrocatalysts from MOFs for improving the performance of ZABs.In this review,the latest progress of the MOF-derived non-noble metal-oxygen electrocatalysts in ZABs is reviewed.The performance of these MOF-derived catalysts toward oxygen reduction,and oxygen evolution reactions is discussed based on the categories of metal-free carbon materials,single-atom catalysts,metal cluster/carbon composites and metal compound/carbon composites.Moreover,we provide a comprehensive overview on the design strategies of various MOF-derived non-noble metal-oxygen electrocatalysts and their structure-performance relationship.Finally,the challenges and perspectives are provided for further advancing the MOF-derived oxygen electrocatalysts in ZABs. | Yuting Zhu Kaihang Yue Chenfeng Xia Shahid Zaman Huan Yang Xianying Wang Ya Yan Bao Yu Xia | 2021 | Nano-Micro Letters2021，13，9： | 5 |
| 3 | Photodeposition fabrication of hierarchical layered Co-doped Ni oxyhydroxide(NixCo1−xOOH)catalysts with enhanced electrocatalytic performance for oxygen evolution reaction显示文摘Highly active,durable and inexpensive oxygen evolution reaction(OER)catalysts are crucial for achieving practical and high-efficiency water splitting.Herein,hierarchical interconnected NixCo1−xOOH nanosheet arrays supported on TiO2/Ti substrate have been fabricated through a facile photodeposition method.Compared with pristine NiOOH,the obtained NixCo1−xOOH nanosheet arrays possess larger exposed electrochemical active surface area,faster transfer and collection of electrons and stronger electronic interaction,showing a low overpotential of 350 mV at a current density of 10 mA·cm−2 and a small Tafel slope of 41 mV·dec−1 in basic solutions,with the OER performance superior to pristine NiOOH and most Ni-based catalysts.Furthermore,the NixCo1−xOOH electrode demonstrates excellent stability at the current density of 10 mA·cm−2 for 24 hours,which is attributed to the structural maintenance caused by the good adhesion of the catalyst and the substrate.Our study provides an alternative approach for the rational design of highly active and promising OER electrocatalysts. | Liang-ai Huang Zhishun He Jianfeng Guo Shi-en Pei Haibo Shao Jianming Wang | 2020 | Nano Research2020，13，1： | 5 |
| 4 | Prompt Electrodeposition of Ni Nanodots on Ni Foam to Construct a High-Performance Water-Splitting Electrode:Efficient, Scalable,and Recyclable显示文摘In past decades,Ni-based catalytic materials and electrodes have been intensively explored as low-cost hydrogen evolution reaction(HER)and oxygen evolution reaction(OER)catalysts for water splitting.With increasing demands for Ni worldwide,simplifying the fabrication process,increasing Ni recycling,and reducing waste are tangible sustainability goals.Here,binder-free,heteroatom-free,and recyclable Ni-based bifunctional catalytic electrodes were fabricated via a one-step quick electrodeposition method.Typically,active Ni nanodot(NiND)clusters are electrodeposited on Ni foam(NF)in Ni(NO3)2 acetonitrile solution.After drying in air,NiO/NiND composites are obtained,leading to a binder-free and heteroatom-free NiO/NiNDs@NF catalytic electrode.The electrode shows high efficiency and long-term stability for catalyzing hydrogen and oxygen evolution reactions at low overpotentials(10ηHER= 119 mV and 50ηOER=360 mV)and can promote water catalysis at 1.70 V@ 10mA cm-2.More importantly,the recovery of raw materials(NF and Ni(NO3)2)is quite easy because of the solubility of NiO/NiNDs composites in acid solution for recycling the electrodes.Additionally,a large-sized(S^70 cm2)NiO/NiNDs@NF catalytic electrode with high durability has also been constructed.This method provides a simple and fast technology to construct high-performance,low-cost,and environmentally friendly Ni-based bifunctional electrocatalytic electrodes for water splitting. | Hongtao Yu Ting Quan Shilin Mei Zdravko Kochovski Wei Huang Hong Meng Yan Lu | 2019 | Nano-Micro Letters2019，11，3： | 2 |
| 5 | 钢基电解水制氢催化剂的研究进展显示文摘廉价电催化剂是电解水制氢的研究热点之一。目前,针对钢基电解水制氢催化剂的系统性分析尚不充分。本文归纳了近40年来不锈钢、低碳钢等钢基电解水制氢电催化剂的研究进展,分别对其作为析氧电催化剂、析氢电催化剂、析氢-析氧双功能电催化剂进行了介绍和剖析。通过对钢基电催化剂的不同制备方法、制备流程以及电催化反应条件等的分析,指出了其作为阳极析氧以及阴极析氢的活性、稳定性和耐受性的影响因素,归纳了不同制备方法存在的问题和电催化剂的使用条件。分析发现,析氧电催化剂和析氢-析氧双功能电催化剂主要以不锈钢为基体制备而成,而析氢电催化剂则主要以低碳钢为基体制备而成。在此基础上,本文提出了后期研究钢基电催化剂的重点、方向以及改进方式,为制备高性能电解水制氢电催化剂及其工业化应用提供参考。 | 吴明珠 杨义斌 卢立娟 常禹 陈瑞雪 赵洋洋 宋阳 董莉娟 李应 | 2022 | 世界科技研究与发展2022，44，4： | 2 |
| 6 | Electrosynthesis of hierarchical NiLa-layered double hydroxide electrode for efficient oxygen evolution reaction显示文摘Oxygen evolution reaction(OER) is a key process for electrochemical water splitting due to its intrinsic large overpotential. Recently, layered double hydroxides(LDHs), especially Ni Fe-LDH, have been regarded as highly performed electrocatalysts for OER in alkaline condition. Here we first present a new class of Ni La-LDH electrocatalyst synthesized by an electrochemical process for efficient water splitting. The as-prepared NiL a-LDH nanosheet arrays(NSAs) give remarkable electrochemical activity and durability under alkaline environments, with a low overpotential of 209 mV for OER to deliver a current density of 10 mA cm^-2, surpassing most of previous reported LDHs eletrocatalysts. The presence of NiLa-LDH in this work extends the studies about LDHs-based electrocatalysts, which will benefit the development of electrochemical energy storage and conversion systems. | Shan Jiang Yunke Liu Wenfu Xie Mingfei Shao | 2019 | Journal of Energy Chemistry2019，28，6： | 1 |
| 7 | 三元镍基硫属化物纳米棒阵列的简单合成及其高效的电催化析氧性能显示文摘通过一步溶剂热法成功合成了泡沫镍(NF)支撑的三元镍基硫属化物(Ni_(3)(Se_(x)S_(1−x))_(2))纳米棒阵列。结构表征结果表明,所得三元Ni_(3)(Se_(x)S_(1−x))_(2)纳米棒属于三方物相,在泡沫镍基底上形成了有序的阵列结构。由于其快速的载流子传输效率、丰富的活性位点和多阴离子的协同效应,Ni_(3)(Se_(0.3)S_(0.7))_(2)/NF纳米棒阵列具有最佳的电催化性能。在1.0 mol/L的KOH溶液中,电流密度为50 mA/cm2时,过电势仅为344 mV,塔菲尔斜率为40.17 mV/dec,同时具有优异的电化学稳定性。更重要的是,以商用Pt/C为阴极,Ni_(3)(Se_(0.3)S_(0.7))_(2)/NF纳米棒阵列为阳极进行全分解水实验,仅需要1.49 V的电池电位即可提供10 mA/cm2的电解电流,表现出良好的电解水效果。该研究为电解水技术领域提供了一种高效的电催化剂,也为电化学能源技术中非贵重电催化剂的合理构建提供了有价值的见解。 | 杜卫民 刘欣 朱琳 付佳敏 郭文山 杨晓晴 双培硕 | 2022 | 应用化学2022，39，8： | 0 |
| 8 | Carbon Dots Promote the Performance of Anodized Nickel Passivation Film on Ethanol Oxidation by Enhancing Oxidation of the Intermediate显示文摘Ethanol is considered a better fuel than methanol in direct alcohol fuel cells because of the high energy density and low toxicity.Compared with noble metal catalysts,nickel-based catalysts are much cheaper in price.However,present nickel-based catalysts still surfer from some disadvantages such as low activity and high overpotential.In this paper;we show a new and high efficient nickel-based catalyst for ethanol oxidation.A layer of anodized nickel passivation film(Ni-APF)was formed on the surface of nickel sheet by anodic oxidation method with carbon dots(CDs)as co-catalyst.At the current density of 110 mA·cm^(-2),the potential for Ni-APF/CDs was only 0.541 V(vs.Ag/AgCI),which was 18.8% lower than that of Ni-APF.Low overpotential could reduce electrode thermal loss and increase output energy.Ni-APF/CDs showed 144.4 mA·cm^(-2) peak current density at peak potential 0.662 V(vs.Ag/AgCI),which was 31% higher than that of Ni-APF(110.3 mA·cm^(-2)).In this system,CDs mainly function in the increase of charge-transfer capacity and the promotion oxidation of carbonaceous intermediates. | Yandi Shi Fan Liao Wenxiang Zhu Huixian Shi Kui Yin Mingwang Shao | 2021 | Chinese Journal of Chemistry2021，39，5： | 0 |
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