Manageable Bubble Release Through 3D Printed Microcapillary for Highly Efficient Overall Water Splitting

Zeng, Tianbiao1; Guo, Binbin2; Xu, Zhiyao2; Mo, Funian3; Chen, Xiaoteng2; Wang, Liping2; Ding, Yihong1; Bai, Jiaming2

2023-02-01

10.1002/advs.202207495

ADVANCED SCIENCE   Impact Factor & Quartile

2198-3844

Porous metal foams (e.g., Ni/Cu/Ti) are applied as catalyst supports extensively for water splitting due to their large specific area and excellent conductivity, however, intrinsic bubble congestion is unavoidable because of the irregular three-dimensional (3D) networks, resulting in high polarization and degraded electrocatalytic performances. To boost the H2O decomposition kinetics, the immediate bubble removal and water supply sequential in the gas-liquid-solid interface is essential. Inspired by the high efficiency of water/nutrient transport in the capillaries plants, this work designs a graphene-based capillary array with side holes as catalyst support to manage the bubble release and water supply via a Z-axis controllable digital light processing (DLP) 3D printing technology. Like planting rice, a low-cost, high-active CoNi carbonate hydroxide (CoNiCH) is planted on support. A homemade cell can reach 10 mA cm(-2) in 1.51 V, and be kept at 30 mA cm(-2) for 60 h without noticeable degradation, surpassing most of the known cells. This research provides a promising avenue to design and prepare advanced catalysts in various fields, including energy applications, pollutant treatment, and chemical synthesis.

3D printing bubbles release management capillary force water splitting

SCI

English

Corresponding

National Key R&D Program of China[2022YFE0197100] ; National Natural Science Foundation of China["22073069","21773082"] ; Shenzhen Science and Technology Innovation Commission["GJHZ20200731095606021","KQTD20190929172505711","20200925155544005"] ; Shenzhen Municipality under Project of Start-up Grant for Shenzhen Oversea High-Level Talents[DD11409018]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000937880300001

WILEY

Web of Science

1.Wenzhou Univ, Coll Chem & Mat Engn, Key Lab Carbon Mat Zhejiang Prov, Wenzhou Key Lab Adv Energy Storage & Convers,Zheji, R China, Wenzhou 325035, Zhejiang, Peoples R China
2.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen Key Lab Addit Mfg High performance Mat, Shenzhen 518055, Peoples R China
3.Harbin Inst Technol, Shenzhen Key Lab Flexible Printed Elect Technol Ct, Shenzhen, Peoples R China

Zeng, Tianbiao,Guo, Binbin,Xu, Zhiyao,et al. Manageable Bubble Release Through 3D Printed Microcapillary for Highly Efficient Overall Water Splitting[J]. ADVANCED SCIENCE,2023.

Zeng, Tianbiao.,Guo, Binbin.,Xu, Zhiyao.,Mo, Funian.,Chen, Xiaoteng.,...&Bai, Jiaming.(2023).Manageable Bubble Release Through 3D Printed Microcapillary for Highly Efficient Overall Water Splitting.ADVANCED SCIENCE.

Zeng, Tianbiao,et al."Manageable Bubble Release Through 3D Printed Microcapillary for Highly Efficient Overall Water Splitting".ADVANCED SCIENCE (2023).