Efficient oxygen evolution on mesoporous IrOx nanosheets

Jiang Bo; Kim Jeonghun; Guo YannaWu Kevin C. W.Alshehri Saad M.Ahamad TansirAlhokbany NorahHenzie JoelYamachi Yusuke

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Efficient oxygen evolution on mesoporous IrOx nanosheets

机译：高效的氧在介孔IrOx进化nanosheets

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Amorphous iridium oxide (IrOx) is a 5d rare metal-based catalyst that has high activity towards the oxygen evolution reaction (OER) over a broad range of pH values. The scarcity of the elemental Ir makes large-scale applications more challenging, so increasing the material utilization efficiency is critical. We developed a sophisticated soft-templating method to synthesize mesoporous nanosheets via solution-based assembly of close-packed polymeric micelles in the presence of metal precursors and reducing agents. Heating the mesoporous nanosheets caused them to form amorphous IrOx perforated with a semi-regular arrangement of similar to 13 nm diameter holes. Mesoporous nanosheets have a unique mixture of 2D and 3D topologies that enable superior electrocatalytic activities for the OER, and good stabilities under both acidic and basic conditions.

机译：非晶氧化铱(IrOx)是一个5 d罕见金属催化剂具有较高的活性对氧进化反应(OER)结束广泛的pH值。元素红外使更大规模的应用有挑战性,所以增加了材料利用效率是至关重要的。一个复杂的极富方法合成介孔nanosheets通过拥挤不堪的聚合物为基础的解决方案组装金属前体和胶束减少代理。nanosheets使他们形成非晶态IrOx穿孔的正规的安排类似于13纳米直径的孔。nanosheets有一个独特的2 d和3 d的混合物拓扑,使electrocatalytic优越OER的活动,和良好的稳定性在酸性和基本条件。

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来源
《Catalysis science & technology》 |2019年第14期|3697-3702|共6页
作者
Jiang Bo; Kim Jeonghun; Guo YannaWu Kevin C. W.Alshehri Saad M.Ahamad TansirAlhokbany NorahHenzie JoelYamachi Yusuke;
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作者单位

King Saud Univ, Dept Chem, Coll Sci, Riyadh 11451, Saudi Arabia;

Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton WPI MANA, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan;

Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, Key Lab Ecochem Engn, Qingdao 266042, Shandong, Peoples R ChinaNatl Taiwan Univ, Dept Chem Engn, 1,Sec 4,Roosevelt Rd, Taipei 10617, Taiwan;

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正文语种英语
中图分类汉语教学;
关键词
PH; oxygen production; mesoporous materialsmaterial utilizationNanosheetsReducing Agentsacidic;

机译：PH值;氧气生产;介孔materialsmaterialutilizationNanosheetsReducing Agentsacidic;

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1. Band Engineering and Morphology Control of Oxygen‑Incorporated Graphitic Carbon Nitride Porous Nanosheets for Highly Efficient Photocatalytic Hydrogen Evolution [J] . Yunyan Wu, Pan Xiong, Jianchun Wu, 纳微快报：英文版 . 2021,第003期
2. Amorphous nickel-cobalt bimetal-organic framework nanosheets with crystalline motifs enable efficient oxygen evolution reaction: Ligands hybridization engineering [J] . Yang Li, Zhonggui Gao, Huiming Bao, 天然气化学（英文版） . 2021,第002期
3. Ultra-small Co/CoO_(x) nanoparticles dispersed on N-doped carbon nanosheets for highly efficient electrocatalytic oxygen evolution reaction [J] . Chen Chen, Zhuojun Yang, Wei Liang, 能源化学：英文版 . 2021,第004期
4. Amorphous nickel-cobalt bimetal-organic framework nanosheets with crystalline motifs enable efficient oxygen evolution reaction: Ligands hybridization engineering [J] . Yang Li, Zhonggui Gao, Huiming Bao, 能源化学：英文版 . 2021,第002期
5. Efficient oxygen evolution on mesoporous IrOx nanosheets (vol 9, pg 3697, 2019) [J] . Jiang Bo, Kim Jeonghun, Guo YannaWu Kevin C. W.Alshehri Saad M.Ahamad TansirAlhokbany NorahHenzie JoelYamauchi Yusuke Catalysis science & technology . 2019,第15期

机译：高效的氧在介孔IrOx进化nanosheets(9卷,3697 pg, 2019)
6. Configuration of gradient-porous ultrathin FeCo2S4 nanosheets vertically aligned on Ni foam as a noncarbonaceous freestanding oxygen electrode for lithium-oxygen batteries [J] . Nanoscale . 2020,第3期

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7. Atom probe study of erbium and oxygen co-implanted silicon [C] . Yasuo Shimizu, Yuan Tu, Ayman Abdelghafar, Silicon Nanoelectronics Workshop . 2017

机译：oxygen氧共注入硅的原子探针研究
8. Crystal growth, Raman scattering and optical properties of the superconductor cadmium rhenium oxide (oxygen-16, oxygen-18) [D] . Hajialamdari, Mojtaba 2008

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9. Unraveling the Photocatalytic Mechanisms on TiO2 Surfaces Using the Oxygen-18 Isotopic Label Technique [O] . Xibin Pang, Chuncheng Chen, Hongwei Ji, 2014

机译：使用Oxygen-18同位素标记技术揭示TiO2表面上的光催化机理
10. Nitrogen enriched mesoporous carbon as a high capacity cathode in lithium-oxygen batteries [O] . Nie Hongjiao, Zhang Huamin, Zhang Yining, 2013

机译：Nitrogen enriched mesoporous carbon as a high capacity cathode in lithium-oxygen batteries
11. Aligned Mesoporous Architectures and Devices [R] . Brinker, J. C., Lu, Y. 2011

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Efficient oxygen evolution on mesoporous IrOx nanosheets

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