单层氧化石墨烯 粉末
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单层氧化石墨烯 粉末
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  • 货号100602
  • CAS号7440-44-0
  • 包装1g
  • 保存条件:4℃避光冷藏
  • 编号XF002-2
  • 规格
  • 保质期:180
  • 价格

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现货库存54件

单层氧化石墨烯 片状 经典

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大片径氧化石墨烯片

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货号 CAS号 编号 包装 参数 库存 补货期 价格
100602 7440-44-0 XF002-2 1g 片径:0.5~5μm厚度:0.8-1.2nm 54 2个工作日 登录后查看价格
100603 7440-44-0 XF002-2 500 mg 片径:0.5~5 μm厚度:0.8- 1.2nm 4 2个工作日 登录后查看价格
103080 7440-44-0 XF002-2 10g 片径:0.5~5 μm厚度:0.8- 1.2nm 5 5个工作日 登录后查看价格
103081 7440-44-0 XF002-2 5g 片径:0.5~5 μm厚度:0.8- 1.2nm 6 2个工作日 登录后查看价格

High-sensitive humidity sensor based on MoS2/graphene oxide quantum dot nanocomposite

作者:Guo, Lifang and Li, Xiaoyu and Li, Wenxiang and Gou, Chenchen and Zheng, Meifang and Zhang, Yong and Chen, Zhiyu and Hong, Yu

链接:https://sciencedirect.53yu.com/science/article/pii/S0254058422004527

Developing a three-input cascade DNA logic gate based on the biological characteristics of metal ion--GO, combined with analysis and verification

作者:Wang, Luhui and Hu, Mengyang and Wang, Yue and Xi, Sunfan and Cheng, Meng and Niu, Li and Dong, Yafei

链接:https://pubsrsc.53yu.com/en/content/articlehtml/2021/ay/d1ay01309b

Facilitating laser ignition and combustion of boron with a mixture of graphene oxide and graphite fluoride

作者:Jiang, Yue and Demko, Andrew R and Baek, Jihyun and Shi, Xinjian and Vallez, Lauren and Ning, Rui and Zheng, Xiaolin

链接:https://sciencedirect.53yu.com/science/article/pii/S2666352X20300133

Facile synthesis of sandwich-like rGO/CuS/polypyrrole nanoarchitectures for efficient electromagnetic absorption

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链接:https://www.mdpi.com/619710

Electrochemical investigation of adsorption of graphene oxide at an interface between two immiscible electrolyte solutions

作者:Qiu, Haiyan and Jiang, Tao and Wang, Xiaoyuan and Zhu, Lin and Wang, Qingwei and Zhao, Yun and Ge, Jianjian and Chen, Yong

链接:https://pubsrsc.53yu.com/en/content/articlehtml/2020/ra/d0ra02560g

Electrochemical investigation of adsorption of graphene oxide at an interface between two immiscible electrolyte solutions

作者:Qiu, Haiyan and Jiang, Tao and Wang, Xiaoyuan and Zhu, Lin and Wang, Qingwei and Zhao, Yun and Ge, Jianjian and Chen, Yong

链接:https://pubsrsc.53yu.com/en/content/articlehtml/2020/ra/d0ra02560g

Interfacial Engineering of Solution-Processed Bi2te3-Based Thermoelectric Nanocomposites Via Synergistic Control of Graphene Addition and Liquid-Phase-Sintering Process

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链接:https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3980302

Lateral size effect of graphene on mechanical properties of aluminum matrix nanolaminated composites

作者:Zhao, Mei and Xiong, Ding-Bang and Tan, Zhanqiu and Fan, Genlian and Guo, Qiang and Guo, Cuiping and Li, Zhiqiang and Zhang, Di

链接:https://sciencedirect.53yu.com/science/article/pii/S1359646217303214

CuCo2S4/reduced graphene oxide nanocomposites synthesized by one-step solvothermal method as anode materials for sodium ion batteries

作者:Gong, Yanmei and Zhao, Jiachang and Wang, Hongxia and Xu, Jingli

链接:https://sciencedirect.53yu.com/science/article/pii/S0013468618322035

Graphene oxide as an antimicrobial agent can extend the vase life of cut flowers

作者:He, Yijia and Qian, Lichao and Liu, Xu and Hu, Ruirui and Huang, Meirong and Liu, Yule and Chen, Guoqiang and Losic, Dusan and Zhu, Hongwei

链接:https://linkspringer.53yu.com/article/10.1007/s12274-018-2115-8

Fabrication of zirconium (IV)-loaded chitosan/Fe3O4/graphene oxide for efficient removal of alizarin red from aqueous solution

作者:Liu, Mingyu and Zhang, Xiaoting and Li, Zhaohui and Qu, Lingbo and Han, Runping

链接:https://sciencedirect.53yu.com/science/article/pii/S0144861720309656

Label-free colorimetric sensor for ultrasensitive detection of heparin based on color quenching of gold nanorods by graphene oxide

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Microstructure and tribological properties of in-situ carbide/CoCrFeNiMn high entropy alloy composites synthesized by flake powder metallurgy

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链接: https://sciencedirect.53yu.com/science/article/pii/S0301679X23000828

Ultrafine oxygenophilic nanoalloys induced by multifunctional interstitial boron for methanol oxidation reaction

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链接: https://sciencedirect.53yu.com/science/article/pii/S0021979722016794

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

 

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