Design and synthesis of Cu modified cobalt oxides with hollow polyhedral nanocages as efficient electrocatalytic and photocatalytic water oxidation catalysts | |
Department | OSSO国家重点实验室 |
Zhang, Yan1; Zhou, Xichen1; Zhang, Fuming1; Tian, Tian1; Ding Y(丁勇)1,2; Gao, Hong1; Ding Y(丁勇) | |
2017 | |
Source Publication | Journal of Catalysis |
ISSN | 0021-9517 |
Volume | 352Pages:246-255 |
Abstract | Cobalt oxides have been modified with Cu using different methods to obtain the catalysts of Cu-ZIF-400 (copper-doped cobalt oxide), CuO/Co3O4 and Co3O4 with identical morphology of hollow polyhedral nanocages. These catalysts were investigated simultaneously for electrocatalytic and photocatalytic water oxidation for the first time. Among them, Cu-ZIF-400 can act as the best electrochemical water oxidation catalyst with a low oxygen evolution reaction (OER) overpotential of 342 mV at 10.0 mA cm-2 in alkaline electrolyte. At the same time, a high turnover frequency (TOF) of 2.1 x 10-3 s-1 per metal atom was obtained over Cu-ZIF-400 at neutral conditions, which is comparable to those documented cobalt based catalysts. The different performances of catalysts can be attributed to the different doping methods. We hypothesize that the electrophilic Cu2+ makes the Co more electron-drawing and facilitates the nucleophilic addition of water, which enhanced OER activity of Cu-ZIF-400 catalyst. |
Keyword | Water Oxidation Copper-doped Cobalt Oxide Metal-organic Framework Electrocatalysis Photocatalysis |
Subject Area | 物理化学与绿色催化 |
DOI | 10.1016/j.jcat.2017.05.020 |
Funding Organization | the National Natural Science Foundation of China (Grants Nos. 21173105);Fundamental Research Funds for the Central Universities (lzujbky–2016–k08) |
Indexed By | SCI |
If | 6.844 |
Language | 英语 |
compositor | 第二作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/22461 |
Collection | 羰基合成与选择氧化国家重点实验室(OSSO) |
Corresponding Author | Gao, Hong; Ding Y(丁勇) |
Affiliation | 1.Lanzhou Univ, State Key Lab Appl Organ Chem, Key Lab Nonferrous Met Chem & Resources Utilizat, Coll Chem & Chem Engn, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, State Key Lab Oxo Synth & Select Oxidat, Lanzhou Inst Chem Phys, Lanzhou 730000, Gansu, Peoples R China |
Recommended Citation GB/T 7714 | Zhang, Yan,Zhou, Xichen,Zhang, Fuming,et al. Design and synthesis of Cu modified cobalt oxides with hollow polyhedral nanocages as efficient electrocatalytic and photocatalytic water oxidation catalysts[J]. Journal of Catalysis,2017,352:246-255. |
APA | Zhang, Yan.,Zhou, Xichen.,Zhang, Fuming.,Tian, Tian.,Ding Y.,...&丁勇.(2017).Design and synthesis of Cu modified cobalt oxides with hollow polyhedral nanocages as efficient electrocatalytic and photocatalytic water oxidation catalysts.Journal of Catalysis,352,246-255. |
MLA | Zhang, Yan,et al."Design and synthesis of Cu modified cobalt oxides with hollow polyhedral nanocages as efficient electrocatalytic and photocatalytic water oxidation catalysts".Journal of Catalysis 352(2017):246-255. |
Files in This Item: | ||||||
File Name/Size | DocType | Version | Access | License | ||
1-s2.0-S002195171730(2679KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment