Synergistic effects of NiPtCo/Ti0.7W0.3O2 hybrid electrocatalysts for accelerating formic acid electro-oxidation performance

Anh Quoc Khuong Nguyen; Tai Thien Huynh; Nam Nguyen Dang; Hau Quoc Pham

doi:10.1039/d4cc05884d

Synergistic effects of NiPtCo/Ti_0.7W_0.3O₂ hybrid electrocatalysts for accelerating formic acid electro-oxidation performance

Chem Commun (Camb). 2024 Nov 28;60(96):14268-14271. doi: 10.1039/d4cc05884d.

Authors

Anh Quoc Khuong Nguyen¹, Tai Thien Huynh², Nam Nguyen Dang^{3

4}, Hau Quoc Pham^{3

4}

Affiliations

¹ Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City, 70000, Vietnam.
² Ho Chi Minh City University of Natural Resources and Environment (HCMUNRE), Ho Chi Minh City, 700000, Vietnam.
³ Future Materials & Devices Lab., Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, 700000, Vietnam.
⁴ The Faculty of Environmental and Chemical Engineering, Duy Tan University, Da Nang, 550000, Vietnam.

PMID: 39540779
DOI: 10.1039/d4cc05884d

Abstract

We herein report the fabrication strategy of a robust catalyst for the formic acid electro-oxidation reaction (FAOR) via combining the advantages of a TiO₂-related support and the synergistic effects of NiPtCo alloy. With the predominant dehydrogenation pathway, the NiPtCo/Ti_0.7W_0.3O₂ catalyst shows remarkable FAOR mass activity and specific activity of 0.45 A mg_Metal^-1 and 1.25 mA cm^-2, being 3.75- and 4.81-time higher than those of the commercially available Pt/C, respectively. The as-made FAOR electrocatalyst shows superior CO-tolerance and electrocatalytic stability during long-term operation conditions due to the synergistic contributions of each component in the overall catalyst system.