Volume 21, Issue 9 2411181
Research Article

Platinum/(Carbon-Nanotube) Electrocatalyst Boosts Hydrogen Evolution Reaction in Acidic, Neutral and Alkaline Solutions

Yi Liu

Yi Liu

School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240 P. R. China

Search for more papers by this author
Peng Liu

Peng Liu

School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240 P. R. China

Search for more papers by this author
Yingying Cai

Yingying Cai

State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237 P. R. China

Search for more papers by this author
Minghui Zhu

Minghui Zhu

State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237 P. R. China

Search for more papers by this author
Ning Dou

Ning Dou

Department of Thyroid Breast and Vascular Surgery, Shanghai Fourth People's Hospital Affiliated To Tongji University School of Medicine, Shanghai, 200081 P. R. China

Search for more papers by this author
Lei Zhang

Corresponding Author

Lei Zhang

Department of Vascular Surgery, Changhai Hospital, Naval Medical University, Shanghai, 200433 P. R. China

E-mail: [email protected]; [email protected]

Search for more papers by this author
Yu-Long Men

Yu-Long Men

School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240 P. R. China

Search for more papers by this author
Yun-Xiang Pan

Corresponding Author

Yun-Xiang Pan

School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240 P. R. China

E-mail: [email protected]; [email protected]

Search for more papers by this author
First published: 27 January 2025
Citations: 1

Abstract

Widely used catalysts for electrocatalytic hydrogen (H2) evolution reaction (HER) have high platinum (Pt) contents and show low efficiencies in neutral and alkaline solutions. Herein, a carbon nanotube (CNT) supported Pt catalyst (Pt/CNT45) with 1 wt.% Pt is fabricated. For HER, the mass activity of Pt/CNT45 in acidic (18.76 A mgPt−1), neutral (3.92 A mgPt−1), and alkaline (3.88 A mgPt−1) solutions is respectively much higher than those on commercial Pt/C catalyst with 20 wt.% Pt (acidic: 0.31 A mgPt−1, neutral: 0.03 A mgPt−1, alkaline: 0.07 A mgPt−1). Thus, Pt/CNT45 enhances HER not only in acidic solutions but also in neutral and alkaline solutions. Ptδ+ at Pt-CNT interface on Pt/CNT45 promotes water (H2O) dissociation and hydroxyl (OH) desorption from Pt/CNT45, thus enhancing HER. This work opens a new way for enhancing HER in a wider pH range by catalyst with low Pt content, and helpful for commercialization.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.