Citation: Xiaoli Li, Wenming Xue, Rong Mo, Sui Yang, Hongxing Li, Jianxin Zhong. In situ growth of minimal Ir-incorporated Co_xNi_1-xO nanowire arrays on Ni foam with improved electrocatalytic activity for overall water splitting[J]. Chinese Journal of Catalysis, ;2019, 40(10): 1576-1584. doi: S1872-2067(19)63414-5 shu

In situ growth of minimal Ir-incorporated Co_xNi_1-xO nanowire arrays on Ni foam with improved electrocatalytic activity for overall water splitting

Hunan Key Laboratory for Micro-Nano Energy Materials and Devices, School of Physics and Optoelectronics, Xiangtan University, Xiangtan 411105, Hunan, China

Received Date: 28 April 2019
Revised Date: 30 May 2019

Fund Project: This work was financially supported by the National Natural Science Foundation of China (51772255), the Hunan Provincial Innovation Foundation For Postgraduate (CX2017B274), the National Basic Research Program of China (2015CB921103), and the Program for Changjiang Scholars and Innovative Research Team in University (IRT13093).

Exploration of cost-effective electrocatalysts for boosting the overall water-splitting efficiency is vitally important for obtaining renewable fuels such as hydrogen. Here, earth-abundant Co_xNi_1-xO nanowire arrays were used as a structural framework to dilute Ir incorporation for fabricating electrocatalysts for water splitting. Minimal Ir-incorporated Co_xNi_1-xO nanowire arrays were synthesized through the facile hydrothermal method with subsequent calcination by using Ni foam (NF) as both the substrate and source of Ni. The electrocatalytic water-splitting performance was found to crucially depend on the Ir content of the parent Co_xNi_1-xO nanowire arrays. As a result, for a minimal Ir content, as low as 0.57 wt%, the obtained Ir-Co_xNi_1-xO/NF electrodes exhibited optimal catalytic activity in terms of a low overpotential of 260 mV for the oxygen evolution reaction and 53 mV for the hydrogen evolution reaction at 10 mA cm^-2 in 1 mol L^-1 KOH. When used as bifunctional electrodes in water splitting, the current density of 10 mA cm^-2 was obtained at a low cell voltage of 1.55 V. Density functional theory calculations revealed that the Ir-doped Co_xNi_1-xO arrays exhibited enhanced electrical conductivity and low Gibbs free energy, which contributed to the improved electrocatalytic activity. The present study presents a new strategy for the development of transition metal oxide electrocatalysts with low levels of Ir incorporation for efficient water splitting.
- Co_xNi_1-xO nanowire array,
- Iridium incorporation,
- Electrocatalyst,
- Water splitting,
- Overpotential
1. [1]
2. [2]
3. [3]
4. [4]
5. [5]
6. [6]
7. [7]
8. [8]
9. [9]
10. [10]
11. [11]
12. [12]
13. [13]
14. [14]
15. [15]
16. [16]
17. [17]
18. [18]
19. [19]
20. [20]
21. [21]
22. [22]
23. [23]
24. [24]
25. [25]
26. [26]
27. [27]
28. [28]
29. [29]
30. [30]
31. [31]
32. [32]
33. [33]
34. [34]
35. [35]
36. [36]
37. [37]
38. [38]
39. [39]
40. [40]
41. [41]
42. [42]
43. [43]
44. [44]
45. [45]
46. [46]
47. [47]
48. [48]
49. [49]
50. [50]
51. [51]
52. [52]
53. [53]
54. [54]
1. [1]
  Zhao Lu , Hu Lv , Qinzhuang Liu , Zhongliao Wang . Modulating NH₂ Lewis Basicity in CTF-NH₂ through Donor-Acceptor Groups for Optimizing Photocatalytic Water Splitting. Acta Physico-Chimica Sinica, 2024, 40(12): 2405005-. doi: 10.3866/PKU.WHXB202405005
2. [2]
  Bo YANG , Gongxuan LÜ , Jiantai MA . Nickel phosphide modified phosphorus doped gallium oxide for visible light photocatalytic water splitting to hydrogen. Chinese Journal of Inorganic Chemistry, 2024, 40(4): 736-750. doi: 10.11862/CJIC.20230346
3. [3]
  Hailang JIA , Hongcheng LI , Pengcheng JI , Yang TENG , Mingyun GUAN . Preparation and performance of N-doped carbon nanotubes composite Co₃O₄ as oxygen reduction reaction electrocatalysts. Chinese Journal of Inorganic Chemistry, 2024, 40(4): 693-700. doi: 10.11862/CJIC.20230402
4. [4]
  Bing WEI , Jianfan ZHANG , Zhe CHEN . Research progress in fine tuning of bimetallic nanocatalysts for electrocatalytic carbon dioxide reduction. Chinese Journal of Inorganic Chemistry, 2025, 41(3): 425-439. doi: 10.11862/CJIC.20240201
5. [5]
  Qiangqiang SUN , Pengcheng ZHAO , Ruoyu WU , Baoyue CAO . Multistage microporous bifunctional catalyst constructed by P-doped nickel-based sulfide ultra-thin nanosheets for energy-efficient hydrogen production from water electrolysis. Chinese Journal of Inorganic Chemistry, 2024, 40(6): 1151-1161. doi: 10.11862/CJIC.20230454
6. [6]
  Wenlong LI , Xinyu JIA , Jie LING , Mengdan MA , Anning ZHOU . Photothermal catalytic CO₂ hydrogenation over a Mg-doped In₂O_3-x catalyst. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 919-929. doi: 10.11862/CJIC.20230421
7. [7]
  Tian TIAN , Meng ZHOU , Jiale WEI , Yize LIU , Yifan MO , Yuhan YE , Wenzhi JIA , Bin HE . Ru-doped Co₃O₄/reduced graphene oxide: Preparation and electrocatalytic oxygen evolution property. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 385-394. doi: 10.11862/CJIC.20240298
8. [8]
  Hao WANG , Kun TANG , Jiangyang SHAO , Kezhi WANG , Yuwu ZHONG . Electro-copolymerized film of ruthenium catalyst and redox mediator for electrocatalytic water oxidation. Chinese Journal of Inorganic Chemistry, 2024, 40(11): 2193-2202. doi: 10.11862/CJIC.20240176
9. [9]
  Juan WANG , Zhongqiu WANG , Qin SHANG , Guohong WANG , Jinmao LI . NiS and Pt as dual co-catalysts for the enhanced photocatalytic H₂ production activity of BaTiO₃ nanofibers. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1719-1730. doi: 10.11862/CJIC.20240102
10. [10]
  Qin Hu , Liuyun Chen , Xinling Xie , Zuzeng Qin , Hongbing Ji , Tongming Su . Ni掺杂构建电子桥及激活MoS₂惰性基面增强光催化分解水产氢. Acta Physico-Chimica Sinica, 2024, 40(11): 2406024-. doi: 10.3866/PKU.WHXB202406024
11. [11]
  Wei Zhong , Dan Zheng , Yuanxin Ou , Aiyun Meng , Yaorong Su . K原子掺杂高度面间结晶的g-C₃N₄光催化剂及其高效H₂O₂光合成. Acta Physico-Chimica Sinica, 2024, 40(11): 2406005-. doi: 10.3866/PKU.WHXB202406005
12. [12]
  Xi YANG , Chunxiang CHANG , Yingpeng XIE , Yang LI , Yuhui CHEN , Borao WANG , Ludong YI , Zhonghao HAN . Co-catalyst Ni₃N supported Al-doped SrTiO₃: Synthesis and application to hydrogen evolution from photocatalytic water splitting. Chinese Journal of Inorganic Chemistry, 2025, 41(3): 440-452. doi: 10.11862/CJIC.20240371
13. [13]
  Jinyi Sun , Lin Ma , Yanjie Xi , Jing Wang . Preparation and Electrocatalytic Nitrogen Reduction Performance Study of Vanadium Nitride@Nitrogen-Doped Carbon Composite Nanomaterials: A Recommended Comprehensive Chemistry Experiment. University Chemistry, 2024, 39(4): 184-191. doi: 10.3866/PKU.DXHX202310094
14. [14]
  Yang WANG , Xiaoqin ZHENG , Yang LIU , Kai ZHANG , Jiahui KOU , Linbing SUN . Mn single-atom catalysts based on confined space: Fabrication and the electrocatalytic oxygen evolution reaction performance. Chinese Journal of Inorganic Chemistry, 2024, 40(11): 2175-2185. doi: 10.11862/CJIC.20240165
15. [15]
  Jiapei Zou , Junyang Zhang , Xuming Wu , Cong Wei , Simin Fang , Yuxi Wang . A Comprehensive Experiment Based on Electrocatalytic Nitrate Reduction into Ammonia: Synthesis, Characterization, Performance Exploration, and Applicable Design of Copper-based Catalysts. University Chemistry, 2024, 39(6): 373-382. doi: 10.3866/PKU.DXHX202312081
16. [16]
  Zelong LIANG , Shijia QIN , Pengfei GUO , Hang XU , Bin ZHAO . Synthesis and electrocatalytic CO₂ reduction performance of metal-organic framework catalysts loaded with silver particles. Chinese Journal of Inorganic Chemistry, 2025, 41(1): 165-173. doi: 10.11862/CJIC.20240409
17. [17]
  Kai CHEN , Fengshun WU , Shun XIAO , Jinbao ZHANG , Lihua ZHU . PtRu/nitrogen-doped carbon for electrocatalytic methanol oxidation and hydrogen evolution by water electrolysis. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1357-1367. doi: 10.11862/CJIC.20230350
18. [18]
  Jingzhao Cheng , Shiyu Gao , Bei Cheng , Kai Yang , Wang Wang , Shaowen Cao . 4-氨基-1H-咪唑-5-甲腈修饰供体-受体型氮化碳光催化剂的构建及其高效光催化产氢研究. Acta Physico-Chimica Sinica, 2024, 40(11): 2406026-. doi: 10.3866/PKU.WHXB202406026
19. [19]
  Ke QIAO , Yanlin LI , Shengli HUANG , Guoyu YANG . Advancements in asymmetric catalysis employing chiral iridium (ruthenium) complexes. Chinese Journal of Inorganic Chemistry, 2024, 40(11): 2091-2104. doi: 10.11862/CJIC.20240265
20. [20]
  Zhuo WANG , Junshan ZHANG , Shaoyan YANG , Lingyan ZHOU , Yedi LI , Yuanpei LAN . Preparation and photocatalytic performance of CeO₂-reduced graphene oxide by thermal decomposition. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1708-1718. doi: 10.11862/CJIC.20240067

Get Citation

PDF

XML

Metrics

PDF Downloads(6)
Abstract views(872)
HTML views(93)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

In situ growth of minimal Ir-incorporated CoxNi1-xO nanowire arrays on Ni foam with improved electrocatalytic activity for overall water splitting

Metrics

通讯作者: 陈斌, bchen63@163.com

In situ growth of minimal Ir-incorporated Co_xNi_1-xO nanowire arrays on Ni foam with improved electrocatalytic activity for overall water splitting