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| 1 | 分级双核壳架构铱基多金属合金催化剂的高效全解水研究(英文)显示文摘电解水制氢是解决环境和能源危机的一种有效策略.本文采用简便的一步油浴法合成分级双核壳架构(HCSA)铱基多金属合金催化剂,并将其应用于酸性环境中的全解水.所制备的IrNiCu HCSA表现出可以与Pt/C相媲美的氢析出(HER)性能和优于IrO2的氧析出(OER)性能. IrNiCu HCSA作为一种双功能催化剂也显示出卓越的全解水性能,在酸性环境中当电流密度为10 mA cm^-2时电压仅为1.53 V,并且在持续催化20 h后性能基本不变,具有很好的稳定性.本研究为新型铱基多金属合金结构的设计与合成奠定了基础,有望应用于电化学催化水分解领域. | 张洁 陈泽霖 刘畅 赵君 刘思靓 饶德伟 聂安民 陈亚楠 邓意达 胡文彬 | 2020 | Science China Materials2020，63，2： | 13 |
| 2 | 2D Layered Double Hydroxide Nanosheets and Their Derivatives Toward E cient Oxygen Evolution Reaction显示文摘Layered double hydroxides(LDHs)have attracted tremendous research interest in widely spreading applications.Most notably,transition-metal-bearing LDHs are expected to serve as highly active electrocatalysts for oxygen evolution reaction(OER)due to their layered structure combined with versatile com-positions.Furthermore,reducing the thickness of platelet LDH crystals to nanometer or even molecular scale via cleavage or delamination provides an important clue to enhance the activity.In this review,recent progresses on rational design of LDH nanosheets are reviewed,including direct synthesis via traditional coprecipitation,homogeneous precipitation,and newly developed topochemical oxidation as well as chemical exfoliation of parent LDH crystals.In addition,diverse strategies are introduced to modulate their electrochemical activity by tuning the composition of host metal cations and intercalated counter-anions,and incorporating dopants,cavi-ties,and single atoms.In particular,hybridizing LDHs with conductive components or in situ growing them on conductive substrates to produce freestanding electrodes can further enhance their intrinsic catalytic activity.A brief discussion on future research directions and prospects is also summarized. | Xueyi Lu Hairong Xue Hao Gong Mingjun Bai Daiming Tang Renzhi Ma Takayoshi Sasaki | 2020 | Nano-Micro Letters2020，12，7： | 8 |
| 3 | In-situ structure reconstitution of NiCo2Px for enhanced electrochemical water oxidation显示文摘Gaining insight into the structure evolution of transition-metal phosphides during anodic oxidation is significant to understand their oxygen evolution reaction(OER) mechanism, and then design highefficiency transition metal-based catalysts. Herein, NiCo_2P_x nanowires(NWs) vertically grown on Ni foam were adopted as the target to explore the in-situ morphology and chemical component reconstitution during the anodic oxidation. The major factors causing the transformation from NiCo_2P_x into the hierarchical NiCo_2P_x@CoNi(OOH)_x NWs are two competing reactions: the dissolution of NiCo_2P_x NWs and the oxidative re-deposition of dissolved Co^(2+) and Ni^(2+) ions, which is based primarily on the anodic bias applied on NiCo2 Px NWs. The well balance of above competing reactions, and local pH on the surface of NiCo_2P_x NW modulated by the anodic oxidation can serve to control the anodic electrodeposition and rearrangement of metal ions on the surface of NiCo_2P_x NWs, and the immediate conversion into CoNi(OOH)_x. Consequently, the regular hexagonal CoNi(OOH)_x nanosheets grew around NiCo_2P_x NWs.Benefiting from the active catalytic sites on the surface and the sufficient conductivity, the resultant NiCo_2P_x@CoNi(OOH)_x arrays also display good OER activity, in terms of the fast kinetics process, the high energy conversion efficiency, especially the excellent durability. The strategy of in-situ structure reconstitution by electrochemical reaction described here offers a reliable and valid way to construct the highly active systems for various electrocatalytic applications. | Xue Bai Zhiyu Ren Shichao Du Huiyuan Meng Jun Wu Yuzhu Xue Xiaojun Zhao Honggang Fu | 2017 | Science Bulletin2017，62，22： | 8 |
| 4 | Layered double hydroxides with atomic-scale defects for superior electrocatalysis显示文摘原子作文调节和缺点工程是有效策略 toenhance 由 improvingthe 的 multicomponent 催化剂的催化表演合作效果;然而,戏剧性地通过同时的缺点 engineeringat 在 multicomponent 材料上调节活跃地点仍然保持挑战性原子规模因为本地环境的类似。此处,把氧进化反应(OER ) 用作探查反应,我们 deliberatelyintroduced 底可溶的 Zn (II ) 或艾尔(III ) 地点进 NiFe 分层的双氢氧化物(LDH ) ,它是最好的 OER 催化剂之一。然后, Zn (II ) 或 siteswere 有选择地蚀刻创造原子 M (II ) 的艾尔(III )/M (III ) 背叛,哪个 dramaticallyenhanced OER 活动。在 20 妈的当前的密度?? | Oixian Xie Zhao Cai Pengsong Li Daojin Zhou Yongmin Bi Xuya Xiong Enyuan Hu Yaping Li Yun Kuang Xiaoming Sun | 2018 | Nano Research2018，11，9： | 8 |
| 5 | Effects of redox-active interlayer anions on the oxygen evolution reactivity of NiFe-layered double hydroxide nanosheets显示文摘镍铁分层的双氢氧化物(NiFe-LDH ) nanosheets 显示出最佳的氧进化反应(OER ) 性能;然而,在 OER 活动的设置的离子的角色仍然保持不清楚。在这个工作,我们证明 NiFe-LDHs 的活动能被设置的阴离子与不同氧化还原作用潜力定制。而 NiFe-LDHs 与高氧化还原作用潜力(低减少能力)的阴离子设置了,有低氧化还原作用潜力(高减少能力)的阴离子的置闰例如次磷酸盐,与 240 mV 的低 OER 过电位和 36.9 mV/dec 的一个小 Tafel 斜坡导致 NiFe-LDHs ,例如 fluorion ,显示出 370 mV 的高过电位和 80.8 mV/dec 的一个 Tafel 斜坡。OER 活动与标准氧化还原作用潜力显示出令人吃惊的线性关联。密度功能的理论计算和 X 光检查光电子光谱学分析显示设置的阴离子改变在表面暴露了的金属原子的电子结构。有低标准氧化还原作用潜力和强壮的减少能力的阴离子把更多的电子转移到氢氧化物层。这增加表面金属地点的电子密度并且稳定他们的高原子价的状态,其形成在 OER 过程以前作为关键步被知道。 | Daojin Zhou Zhao Cai Yongmin Bi Weiliang Tian Ma Luo Qian Zhang Qixian Xie Jindi Wang Yaping Li Yun Kuang Xue Duan Michal Bajdich Samira Siahrostami Xiaoming Sun | 2018 | Nano Research2018，11，3： | 6 |
| 6 | 基于富缺陷镍铁水滑石材料的高效析氧电极(英文)显示文摘探索低成本高效率的析氧电极对于工业电解水技术的发展至关重要.尽管镍铁水滑石已被公认为是一种高效析氧的非贵金属催化剂,但其本征活性还有待进一步提高.本研究通过将氧空位缺陷引入镍铁水滑石,设计出一种低成本高效率的析氧电极.通过精确电子结构调控,暴露更多活性位点,提高电极导电性,富缺陷镍铁水滑石电极展现出1.40 V(vs.RHE)的低起峰电位.同时,它仅需200 m V过电势就能达到10 m A cm^(-2)的电流密度,这相比未经处理的镍铁水滑石降低了48 m V.我们进一步通过密度泛函理论计算发现,氧空位缺陷的引入使Fe的价态降低,带隙减小,使得催化过程中电子更容易被激发到导带中,从而降低反应过电势并使析氧活性增强. | 熊旭亚 蔡钊 周道金 张国新 张倩 贾茵 段欣旋 谢启贤 赖仕斌 谢添慧 李亚平 孙晓明 段雪 | 2018 | Science China Materials2018，61，7： | 6 |
| 7 | 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 |
| 8 | 变废为宝:富缺陷镍掺杂磷酸铁锂用于高效电催化析氧反应显示文摘在电池废弃物可持续管理中,锂离子电池(LIB)电极材料的高效回收是一个重要而又具有挑战性的工作.本文报道了一种简单且经济有效的方法,将废旧电池正极材料磷酸铁锂(LiFePO_(4))转化为高性能的镍铁氧/氢氧化物(NiFeOxHy)催化剂用于析氧反应(oxygen evolution reaction,OER).采用湿法浸渍合成的Ni-LiFePO_(4)在电化学氧化过程中进一步转变成了富缺陷的NiFeOxHy纳米片.镍促进剂的引入和前驱物形貌的原位转化增强了金属位点之间的电子相互作用,同时产生了大量的缺陷.电化学测试结果表明,转化后的Ni-LiFePO_(4)在10 mA cm^(-2)电流密度下的过电位仅为285 mV,Tafel斜率为45 mV dec^(-1),优于前驱物LiFePO_(4),甚至优于基准贵金属催化剂RuO_(2).密度泛函理论(density functional theory,DFT)计算表明,Ni的引入优化了*OOH中间体的自由能,从而有效激活了Fe位点;而丰富的氧缺陷促进了氧解吸步骤,二者协同提高了LiFePO_(4)的催化析氧反应性能.作为一种绿色和通用的方法,该研究为基于废旧电池材料规模化制备优良电催化剂提供了新的机遇. | 崔柏桦 刘畅 张金凤 陆继军 刘丝靓 陈方帅 周伟 钱国余 王志 邓意达 陈亚楠 胡文彬 | 2021 | Science China Materials2021，64，11： | 3 |
| 9 | Smoke suppressant in flame retarded thermoplastic polyurethane composites: Synergistic effect and mechanism study显示文摘Considerable smoke and toxic volatiles generation has compromised the application of thermoplastic polyurethane (TPU) and caused a great threat to human life. Here, nano-MgFe layered double hydroxide (MgFe-LDH) with uniform particle size was synthesized to reduce smoke density and toxic gases of TPU composites using ammonium polyphosphate (APP) as a flame retardant agent. The results show that the combination of 16 wt.% APP and 4 wt.% MgFe-LDH greatly decreased the smoke density (D20min and Ds, max), smoke production rate (SPR) and heat release rate (HRR) of TPU composites. Furthermore, the MgFe-LDH synergist demonstrated high efficiency in decreasing total volatiled products and toxic volatiles evolved, such as the CO, HCN and isocyanates. The reason was mainly attributed to the chemical reaction between MgFe-LDH and APP, which can promote the compactness of char layers with fine microstructure formed in the decomposition process of MgFe-LDH/APP/TPU composites. The protective char layers could act as barriers between combustion zone and matrix to protect the unburned substrate and promote smoke suppression effect. | Hongyuan Ren Kelan Qing Ying Chen Yanjun Lin Xue Duan | 2021 | Nano Research2021，14，11： | 2 |
| 10 | 层状双金属氢氧化物电催化剂的合成与应用研究进展显示文摘层状双金属氢氧化物(LDHs)具有层内离子可变、层间阴离子可交换以及反应表面较大的特点,因而表现出优异的电催化析氢和析氧性能。此外,基于LDHs的衍生物能够实现催化剂材料的多功能化和性能的增强,使其在众多领域均表现出显著的优势和良好的应用前景。系统分析了LDHs层板结构的可调变性、可剥层及组装性、结构记忆效应等性质,以及剥层法、共沉淀法和水热合成法等LDHs高效电催化剂的常用制备方法,综述了LDHs及其复合衍生物在电解水析氧反应、析氢反应、乙醇电催化氧化反应、氧还原反应等电催化领域的应用研究,并对LDHs所涉及的问题和解决方案进行了分析及展望。 | 许雪容 彭祥 | 2022 | 石油化工高等学校学报2022，35，5： | 2 |
| 11 | Advances and challenges in two-dimensional materials for oxygen evolution显示文摘Oxygen evolution reaction(OER)plays an important role in many energy conversions and storage technologies,such as water splitting,rechargeable metal air batteries,renewable fuel cells,and electrocatalytic carbon dioxide reduction and nitrogen reduction,but its slow kinetics and high overpotential seriously affect the energy efficiency.Fabrication of high-performance and well-stocked OER catalysts is the key to the large-scale implementation of these energy-related technologies.Two-dimensional(2D)materials get a lot of attention as OER catalysts due to their large specific surface area,abundant active sites,and adjustable structures and compositions.Here,an overview is presented for the latest achievements in design and synthesis of 2D materials(including layered double hydroxides,metal-organic frameworks and their derivatives,covalent-organic frameworks,graphene,and black phosphorus)for the OER,emphasizing novel strategies(including metal/nonmetal doping,defect engineering,interface engineering,lattice strain,and fabrication of heterojunction)for achieving high electrocatalytic activity.Peculiarly,the structure–function relationship is analyzed in detail to gain deeper insight into the reaction mechanism,which is crucial to rational design of more high-performance 2D materials for the OER.Finally,the remaining challenges to improve the OER performance of 2D electrocatalysts are put forward to indicate possible future development of 2D materials. | Tianmi Tang Saisai Li Jianrui Sun Zhenlu Wang Jingqi Guan | 2022 | Nano Research2022，15，10： | 1 |
| 12 | LDHs的制备及在电催化领域研究的进展显示文摘介绍层状双金属氢氧化物(LDHs)的制备方法;综述LDHs作为氧气电催化电极材料,通过与不同材料复合制备碳基复合LDHs纳米材料,以提高电催化性能的研究进展。这些材料主要有碳纳米管(CNT)、石墨烯(G)和金属有机框架等。 | 曹磊 宋爱玲 白磊 邵光杰 | 2018 | 电池2018，48，3： | 1 |
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