Ligand effect of PdRu on Pt-enriched surface for glucose complete electro-oxidation to carbon dioxide and abiotic direct glucose fuel cells

Yichi Guan; Dezhi Su; Yan Zhang; Bowen Zhang; Yanyi Liu; Pengcheng Liu; Lishou Ban; Tao Qin; Kaili Wang; Ganghui Chu; Xijun Liu; Jia He

doi:10.1002/cssc.202401108

Ligand effect of PdRu on Pt-enriched surface for glucose complete electro-oxidation to carbon dioxide and abiotic direct glucose fuel cells

ChemSusChem. 2024 Jul 18:e202401108. doi: 10.1002/cssc.202401108. Online ahead of print.

Authors

Yichi Guan¹, Dezhi Su², Yan Zhang³, Bowen Zhang⁴, Yanyi Liu⁵, Pengcheng Liu⁵, Lishou Ban⁵, Tao Qin⁵, Kaili Wang⁶, Ganghui Chu⁴, Xijun Liu⁷, Jia He⁸

Affiliations

¹ Kashi University, Laboratory of Xinjiang Native Medicinal and Edible Plant Resources Chemistry, Kashi University; School of Chemistry and Chemical Engineering, Tianjin University of Technology, CHINA.
² Tianjin University of Science and Technology, School of Chemistry and Chemical Engineering, Tianjin University of Technology, CHINA.
³ Nankai University, College of Chemistry, Research Center for Analytical Sciences, Central Laboratory, Nankai University, Tianjin, CHINA.
⁴ Kashi University, Laboratory of Xinjiang Native Medicinal and Edible Plant Resources Chemistry, Kashi University, CHINA.
⁵ Tianjin University of Technology, School of Chemistry and Chemical Engineering, Tianjin University of Technology, CHINA.
⁶ Weifang University, School of Chemistry & Chemical Engineering and Environmental Engineering, Weifang University, CHINA.
⁷ Guangxi University, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, CHINA.
⁸ Tianjin University of Technology, School of Chemistry and Chemical Engineering, Binshuixidao 391, 300384, Tianjin, CHINA.

PMID: 39022814
DOI: 10.1002/cssc.202401108

Abstract

The development of advanced electrocatalysts for the abiotic direct glucose fuel cells (ADGFCs) is critical in the implantable devices in living organisms. The ligand effect in the Pt shell-alloy core nanocatalysts is known to influence the electrocatalytic reaction in interfacial structure. Herein, we reported the synthesis of ternary Pt@PdRu nanoalloy aerogels with ligand effect of PdRu on Pt-enriched surface through electrochemical cycling. Pt@PdRu aerogels with optimized Pt surface electronic structure exhibited high mass activity and specific activity of Pt@PdRu about 450 mA·mgPt-1 and 1.09 mA·cm-2, which were 1.4 and 1.6 times than that of commercial Pt/C. Meanwhile, Pt@PdRu aerogels have higher electrochemical stability comparable to commercial Pt/C. In-situ FTIR spectra results proved that the glucose oxidation reaction on Pt@PdRu aerogels followed the CO-free direct pathway reaction mechanism and part of the products are CO2 by completed oxidation. Furthermore, the ADGFC with Pt@PdRu ultrathin anode catalyst layer showed a much higher power density of 6.2 mW·cm-2 than commercial Pt/C (3.8 mW·cm-2). To simulate the blood fuel cell, the Pt@PdRu integrated membrane electrode assembly was exposed to glucose solution and a steady-state open circuit of approximately 0.6 V was achieved by optimizing the glucose concentration in cell system.

Keywords: Pt@PdRu core-shell aerogels Ligand effect Glucose oxidation reaction Abiotic direct glucose fuel cells.