High-sensitive humidity sensor based on MoS2/graphene oxide quantum dot nanocomposite
发布时间：2022
Developing a three-input cascade DNA logic gate based on the biological characteristics of metal ion--GO, combined with analysis and verification
发布时间：2021
Facilitating laser ignition and combustion of boron with a mixture of graphene oxide and graphite fluoride
发布时间：2020
Facile synthesis of sandwich-like rGO/CuS/polypyrrole nanoarchitectures for efficient electromagnetic absorption
发布时间：2020
Electrochemical investigation of adsorption of graphene oxide at an interface between two immiscible electrolyte solutions
发布时间：2020
Electrochemical investigation of adsorption of graphene oxide at an interface between two immiscible electrolyte solutions
发布时间：2020
Interfacial Engineering of Solution-Processed Bi2te3-Based Thermoelectric Nanocomposites Via Synergistic Control of Graphene Addition and Liquid-Phase-Sintering Process
Lateral size effect of graphene on mechanical properties of aluminum matrix nanolaminated composites
发布时间：2017
CuCo2S4/reduced graphene oxide nanocomposites synthesized by one-step solvothermal method as anode materials for sodium ion batteries
发布时间：2018
Graphene oxide as an antimicrobial agent can extend the vase life of cut flowers
发布时间：2018
Fabrication of zirconium (IV)-loaded chitosan/Fe3O4/graphene oxide for efficient removal of alizarin red from aqueous solution
发布时间：2020
Label-free colorimetric sensor for ultrasensitive detection of heparin based on color quenching of gold nanorods by graphene oxide
发布时间：2012
Microstructure and tribological properties of in-situ carbide/CoCrFeNiMn high entropy alloy composites synthesized by flake powder metallurgy
发布时间：2023
Ultrafine oxygenophilic nanoalloys induced by multifunctional interstitial boron for methanol oxidation reaction
发布时间：2023
In Situ Facile Fabrication of Ultrathin Co (OH) 2-CoO/Graphene Oxide Nanosheet Hybrids with Superior Oxygen Evolution Reaction Performance
发布时间：2023
Micronleaf-shape graphene interfaces on wood transverse sections as advanced photothermal evaporators for water purification
发布时间：2024
Enhanced energy delivery of direct-write fabricated reactive materials with energetic graphene oxide
发布时间：2024
Toward high performance microwave absorber by implanting La0. 8CoO3 nanoparticles on rGO
发布时间：2024
Integration strategies of ternary hierarchical nanocomposite designs with activated ultraviolet lights and surface acoustic waves for enhancing NO2 sensing at Room-Temperature
发布时间：2024
Micronleaf-shape graphene interfaces on wood transverse sections as advanced photothermal evaporators for water purification
发布时间：2024
Toward high performance microwave absorber by implanting La0. 8CoO3 nanoparticles on rGO
发布时间：2024
Concanavalin A as carrier for sensitive electrochemical immunosensor based on AgNPs-rGO signal amplification
发布时间：2024
Graphene oxide modified sodium alginate/polyethylene glycol phase change material hydrogel scaffold composite with photothermal temperature control for potential bone tissue regeneration
发布时间：2024
构筑Janus空心石墨烯的Ni-N4和Fe-N4双原子中心用于选择性氧电催化
文章内容概述：
在这个工作中，我们以K2[Ni(CN)4]、带正电的SiO2纳米球模板和氧化石墨烯(GO)以及肽菁亚铁(FePc)通过一步一步自组装的方法合成中间体SiO2@[Ni(CN)4]2-@GO@FePc，直接高温裂解中间体并碱洗除去模板后最终得到单原子Ni和单原子Fe分别负载于石墨烯空心球内层和外层的Janus材料Ni-N4/GHSs/Fe-N4。经过研究，石墨烯空心球的直径为150-200 nm，Ni和Fe都以单原子的形式分别负载于石墨烯空心球的内外表面，同步辐射吸收光谱(XAS)表明单原子Ni和Fe都分别与四个N配位。电化学研究表明，外层的Fe-N4组分对ORR具有较高的催化活性，半波电位(E1/2)为0.83 V，内层的Ni-N4组分对OER具有较高的催化活性，过电位(Ej10)为0.39 V，实验结果与理论计算相符。在实用性方面，Ni-N4/GHSs/Fe-N4基锌空电池充放电循环600圈（大约200 h）后，未出现明显衰减，充放电效率保持在52.2%，且比容量和能量密度分别为777.6 mAhgZn-1和970.4 Wh kgZn-1,为理论容量(820 mAhgZn-1)和能量密度(1084 Wh kgZn-1)的94.8%和89.5%，明显优于Pt/C+RuO2基锌空电池（659.6 mAhgZn-1和844.3 Wh kgZn-1）。说明所合成的Janus材料Ni-N4/GHSs/Fe-N4是一种同时有利于ORR和OER的双功能催化剂，实用性上，Ni-N4/GHSs/Fe-N4基锌空电池具有较大的比容量、能量密度，较高的充放电效率以及较好的循环稳定性。
创新点：
通过一步一步自组装的方法，首次将两种不同的电催化活性组分在同一个催化剂中分开，从而形成Janus结构；通过空间限域效应，将具有高OER活性的Ni和具有高ORR活性的Fe以单原子的形式分别锚定在石墨烯层两个不同的表面，并各自表现出优异的ORR和OER活性。在锌空电池测试中所合成的Janus材料表现出优异的循环稳定性，600次循环后充放电效率仍然稳定；较高的比容量和能量密度，分别为理论值的94.8%和89.5%。
产品使用感受：
我们购买的是1000mg/瓶规格的单层氧化石墨烯（XF002-2）用来合成样品。这个产品给我的感受就是氧化石墨烯非常的轻，而且很亲水，容易分散，基本每次都能成功合成样品，形貌也很稳定。之前也用过其他品牌的氧化石墨烯，整体偏灰黑色，便宜许多，但亲水性不好，不易分散，导致很多情况下合成样品的形貌都是塌的，现在实验室都是用的先丰纳米的石墨烯了。
课题组方向：
导师：唐亚文 教授
电催化方向：ORR，OER，HER，MOR，锌空电池，全解水
使用先丰产品发表的文章
Dual Single-Atomic Ni-N4 and Fe-N4 Sites Constructing Janus Hollow Graphene for Selective Oxygen Electrocatalysis，Adv. Mater. 2020, 32, 2003134