4.7 Article

Ternary PtZnCu Intermetallic Nanoparticles as an Efficient Oxygen Reduction Electrocatalyst for Fuel Cells with Ultralow Pt Loading


Volume -, Issue -, Pages -


DOI: 10.1021/acsaem.2c01692


oxygen reduction reaction; intermetallic Pt nanoparticles; N-doped carbon; ultralow Pt loading; fuel cells


  1. National Natural Science Foundation of China
  2. [21771184]

Ask authors/readers for more resources

Developing efficient methods for mass production of Pt-based nanoparticles (NPs) as electrocatalysts is crucial for advancing the commercialization of proton exchange membrane fuel cells (PEMFCs). This study proposes an environmentally friendly approach to prepare PtZnCu intermetallic NPs attached to an N-doped carbon substrate, with potential for large-scale industrial production. The optimized catalyst exhibits impressive performance, with a half-wave potential of 0.93 V and an activity of 0.95 A mgPt-1 at 0.9 V for the oxygen reduction reaction (ORR) in an acidic solution. The assembled PEMFCs show outstanding performance, achieving a power density of 1.1 W cm-2 under an H2/air atmosphere, with Pt loading amount only one seventh of commercial Pt/C.
It is of paramount importance to develop efficient methods for mass production of Pt-based nanoparticles (NPs) as oxygen reduction reaction (ORR) electrocatalysts with high performance to advance the commercialization of proton exchange membrane fuel cells (PEMFCs). Here, we present an environmentally friendly approach to prepare ternary PtZnCu intermetallic NPs attached within an N-doped carbon substrate. The synthesis process has the potential for industrial scale-up production. The optimized catalyst (PtZnCu-F-NC) exhibited impressive performance. The half-wave potential was up to 0.93 V (versus reversible hydrogen electrode) for the ORR in an acidic solution, and the activity reached 0.95 A mgPt-1 at 0.9 V. The assembled PEMFCs showed a fantastic performance of 1.1 W cm-2 under an H2/air atmosphere. The loading amount of Pt in the cathode was 0.04 mgPt cm-2, only one seventh of the commercial Pt/C (60 wt %). This work puts forward an ideal strategy for the large-scale production of advanced Pt-based nanocatalysts, which thus offers significant advantages for future practical PEMFC applications.


I am an author on this paper
Click your name to claim this paper and add it to your profile.


Primary Rating

Not enough ratings

Secondary Ratings

Scientific rigor
Rate this paper


Article Chemistry, Physical

ZrO2 anchored core-shell Pt-Co alloy particles through direct pyrolysis of mixed Pt-Co-Zr salts for improving activity and durability in proton exchange membrane fuel cells

Meihua Huang, Tao Liu, Kun Hou, Feng Sun, Chuxin Wu, Lunhui Guan

Summary: This paper reports the preparation and performance study of Pt-Co alloy nanoparticles anchored on multi-walled carbon nanotubes for oxygen reduction reaction (ORR). The catalyst exhibits high activity and durability, making it a promising candidate for proton exchange membrane fuel cells (PEMFCs).


Article Nanoscience & Nanotechnology

Bead-like carbon fibers consisting of abundantly exposed active sites for the oxygen reduction reaction

Weiya Jiang, Bing Huang, Rongtao Hu, Yaqi Cui, Lunhui Guan

Summary: In this study, we increased the active site loading and exposed area of the final product in the electrospinning process by introducing ZIF-8 and PVP. ZIF-8 provided a rich microporous structure and acted as a nitrogen dopant, while PVP changed the properties of the spinning solution and fiber morphology. The obtained catalyst showed excellent performance in the oxygen reduction reaction.


Article Chemistry, Physical

Atomically dispersed Mn-N4 electrocatalyst with high oxygen reduction reaction catalytic activity from metal-organic framework ZIF-8 by minimal-water-assisted mechanochemical synthesis

Ziyan Kong, Tao Liu, Kun Hou, Lunhui Guan

Summary: This paper reports the preparation of a highly active Mn-N-C catalyst using the metal-organic framework ZIF-8 as the precursor through a mechanochemical method. The mechanochemical method allows for fine dispersion of the manganese salt and efficient alleviation of manganese oxide formation, resulting in a high yield compared to the traditional organic solvent method. The obtained catalyst exhibits high catalytic activity, stability, and potential for practical applications.


Article Chemistry, Multidisciplinary

Highly Dispersive Metal Atoms Anchored on Carbon Matrix Obtained by Direct Rapid Pyrolysis of Metal Complexes

Bing Huang, Minghao Wang, Chuxin Wu, Lunhui Guan

Summary: This study presents a direct rapid pyrolysis method for the synthesis of single atom catalysts (SACs) with high concentrations of transition metals. The optimized Fe, Ni dual-metal catalyst shows excellent oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) activity and stability, with a small difference in potential between ORR and OER. Breaker and solid-state zinc-air batteries based on the optimized catalysts exhibit high powder densities and long-term cycling performance.


Article Nanoscience & Nanotechnology

High-performance manganese and nitrogen codoped carbon (Mn-N-C) oxygen reduction electrocatalyst from Mn2+ coordinated sodium alginate

Ziyan Kong, Huiying Wang, Kun Hou, Lunhui Guan

Summary: The research and development of low-cost, high-performance non-platinum group metal oxygen reduction reaction catalysts is of great significance for the practical application of fuel cells. In this study, a Mn-N-C catalyst with outstanding activity and stability was successfully prepared, showing better performance than commercial Pt/C catalyst.


Article Chemistry, Multidisciplinary

Mechanically Stable All Flexible Supercapacitors with Fracture and Fatigue Resistance under Harsh Temperatures

Jianren Huang, Songjiu Han, Jundong Zhu, Qirui Wu, Hongjie Chen, Anbang Chen, Jiayu Zhang, Bing Huang, Xiaoxiang Yang, Lunhui Guan

Summary: In this work, a mechanically stable supercapacitor is synthesized by in situ polymerization of polyaniline onto a double network hydrogel electrolyte. The highly integrated structure endows the supercapacitor with unprecedented mechanical performance. The device exhibits excellent environmental adaptability and can endure high tensile strain, making it suitable for integrated flexible electronic systems in harsh environments.


Article Engineering, Environmental

Stretchable and self-healing ionic conductive elastomer for multifunctional 3D printable sensor

Qirui Wu, Songjiu Han, Jundong Zhu, Anbang Chen, Jiayu Zhang, Zhen Yan, Jiantao Liu, Jianren Huang, Xiaoxiang Yang, Lunhui Guan

Summary: In this study, solid-state conductive ionogels (SCIg) composed of long-chain copolymer networks were designed and prepared. The SCIg showed outstanding properties, including high tensile strength, conductivity, self-healing efficiency, and UV curable 3D printability. These SCIgs were further applied in the development of resistance-type sensors, capacitive-type sensors, and multifunctional electronic skins, showing great potential in the fields of electronic skin, physiological signal detection, and human-machine interface.


Article Nanoscience & Nanotechnology

Mn-N-C catalysts derived from metal triazole framework with hierarchical porosity for efficient oxygen reduction

Huiying Wang, Ziyan Kong, Minghao Wang, Bing Huang, Lunhui Guan

Summary: Manganese and nitrogen co-doped porous carbon is a promising non-precious metal electrocatalyst for the oxygen reduction reaction. Metal triazole frameworks were used as the carbon substrate to trap and anchor Mn-containing gaseous species. The optimized Mn-N-C electrocatalyst exhibited superior ORR activity and excellent cyclic stability, making it a potential catalyst for practical devices like Zn-air batteries.


Article Chemistry, Multidisciplinary

Tough hydrogel with high water content and ordered fibrous structures as an artificial human ligament

Songjiu Han, Qirui Wu, Jundong Zhu, Jiayu Zhang, Anbang Chen, Shu Su, Jiantao Liu, Jianren Huang, Xiaoxiang Yang, Lunhui Guan

Summary: This study proposes a simple integrated strategy to prepare an anisotropic hierarchical hydrogel architecture for artificial ligaments. The hydrogels exhibit high water content, strength, fatigue resistance, and stress sensitivity, making them suitable for biomedical applications.


Article Chemistry, Multidisciplinary

Dense-Packed RuO2 Nanorods with In Situ Generated Metal Vacancies Loaded on SnO2 Nanocubes for Proton Exchange Membrane Water Electrolyzer with Ultra-Low Noble Metal Loading

Bing Huang, Yaqi Cui, Xuwei Liu, Caixia Zheng, Hao Wang, Lunhui Guan

Summary: In this study, a catalyst with RuO2 nanorods coated outside SnO2 nanocubes is designed, which forms continuous networks and provides high conductivity, allowing for the reduction of Ru contents in catalysts. Furthermore, the structure evolutions on the RuO2 surface are carefully investigated, and the etched RuO2 surfaces are seen as the consequence of Co leaching, which is more effective in driving oxygen evolution. Electrochemical tests show that the catalysts with 23 wt% Ru exhibit an overpotential of 178 mV at 10 mA cm(-2), which is higher than most state-of-art oxygen evolution catalysts. In practical PEMWE, the noble metal Ru loading on the anode side is only 0.3 mg cm(-2), and the cell achieves 1.61 V at 1 A cm(-2) and proper stability at 500 mA cm(-2), demonstrating the effectiveness of the designed catalyst.

SMALL (2023)

Article Chemistry, Multidisciplinary

Tough and Robust Mechanically Interlocked Gel-Elastomer Hybrid Electrode for Soft Strain Gauge

Jianren Huang, Anbang Chen, Songjiu Han, Qirui Wu, Jundong Zhu, Jiayu Zhang, Yujia Chen, Jiantao Liu, Lunhui Guan

Summary: Soft strain gauges offer a flexible and versatile alternative to traditional gauges, with improved fracture energy, fatigue threshold, and sensing performance. A mechanically interlocked gel-elastomer hybrid material is utilized for the strain gauge, providing exceptional strength and stretchability. The resulting electrode demonstrates excellent detection capabilities for human-related vibrations, enabling the measurement of physiological parameters and the development of an intelligent motion detection system.


Article Chemistry, Physical

Internal interface engineering of yolk-shell structure toward fast and robust potassium storage

Yanmei Gan, Lizhong Liu, Qixin Zhang, Jianren Huang, Songjiu Han, Bingbing Chen, Yang Liu, Qiangmin Yu, Lunhui Guan, Tianhua Zhou, Min Han, Yi Zhao, Wei Huang

Summary: Advanced anode materials with stable and fast K-ion storage behavior are developed by encapsulating core-shell NiS2@C nanoparticles within MOF-derived hollow carbon shell. The internal interfacial engineering enhances the charge transport kinetics, pseudocapacitive behavior, and mitigates mechanical stress in the outer carbon shell. The yolk-shell NiS2@C@C composite exhibits ultrahigh capacity and excellent cycle stability, making it highly competitive for potassium-ion batteries.


Article Chemistry, Physical

All-in-One Configured Flexible Supercapacitor for Wide-Temperature Operation and Integrated Application

Jundong Zhu, Songjiu Han, Qirui Wu, Jiayu Zhang, Anbang Chen, Bing Huang, Jianren Huang, Lunhui Guan

Summary: In this study, a poly(vinyl electrolyte) was prepared by a one-pot method, followed by in situ polymerization of aniline to fabricate all-in-one polyaniline supercapacitor devices. These devices demonstrated good mechanical and electrochemical performance over a wide temperature range, making them suitable for human health monitoring and wearable electronics applications.


Article Chemistry, Physical

Self-adhesive electronic skin for ultra-sensitive healthcare monitoring

Anbang Chen, Jiayu Zhang, Jundong Zhu, Zhen Yan, Qirui Wu, Songjiu Han, Jianren Huang, Lunhui Guan

Summary: In this study, a hydrogel with high resilience and adhesion was prepared by introducing glycerol into a dual-network structure. A conductive layer of graphene oxide and carbon nanotubes was sprayed on the hydrogel to achieve high strain sensing. The integrated sensor showed high sensitivity, wide strain range, and good adhesion, providing a feasible solution for improving wearable electronic devices for healthcare monitoring.


Article Materials Science, Multidisciplinary

Approaching Superior Potassium Storage of Carbonaceous Anode Through a Combined Strategy of Carbon Hybridization and Sulfur Doping

Qianqian Yao, Yanmei Gan, Zuju Ma, Xiangying Qian, Suzhi Cai, Yi Zhao, Lunhui Guan, Wei Huang

Summary: Carbonaceous materials show promise as anode candidates for potassium-ion batteries due to their high conductivity, stable properties, and abundant resources. A superior carbonaceous anode was developed in this study through a combined strategy of carbon hybridization and heteroatom doping, resulting in high capacity and superior rate capability. The use of graphene/amorphous carbon interface and sulfur doping played a key role in enhancing the electronic structure and ion adsorption/transport properties of the composite, leading to its excellent performance.


No Data Available