Improved Ethylene Glycol Electro-Oxidation Using xPtyPd Electrocatalysts on Aza-BODIPY-Modified Carbon Black DOI
Suwaphid Themsirimongkon, Kullapa Chanawanno, Paralee Waenkaew

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 29, 2025

This study presents an innovative approach for synthesizing bimetallic platinum (Pt) and palladium (Pd) electrocatalysts supported on aza-boron-dipyrromethene (aza-BODIPY, or DP)-modified carbon black (DP-C) to enhance the catalytic oxidation of ethylene glycol (EG) in alkaline media. DP as a modifier optimizes interaction between active metal nanoparticles support, improving activity. Pt Pd alloy were electrodeposited DP-C via cyclic voltammetry (CV), forming catalyst denoted xPtyPd/DP-C. The catalysts characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), photoelectron spectroscopy (XPS), revealing spherical with varying surface areas. Electrochemical tests, including CV, chronoamperometry (CA), electrochemical impedance (EIS), show that xPtyPd/DP-C exhibits superior EG performance, transfer, CO resistance, durability. mass specific activities PtPdPtPd/DP-C 1.4 1.2 times higher than Pt/C. Chemical doping heteroatoms tailors its properties, enhancing performance support formation metals. work provides promising strategy developing high-performance anode direct fuel cells.

Language: Английский

Surface structure optimization by selective dissolution to improve the oxygen reduction performance of SmMn2O5 DOI
Shaohui Huang, Jie Wu, Jing Chi

et al.

Journal of Electroanalytical Chemistry, Journal Year: 2025, Volume and Issue: 984, P. 119052 - 119052

Published: Feb. 28, 2025

Language: Английский

Citations

0
Thiol‐Modulation‐Induced Mesoporous Nanosheets with an Alloy/Intermetallic Heterophase for Efficient Electrochemical Ethylene Glycol‐Assisted Water Splitting DOI Creative Commons

Fukai Feng,

Sumei Han,

Chaoqun Ma

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 25, 2025

Abstract Ligand modification has been widely utilized to tune the coordination environment of active sites in noble metal‐based electrocatalysts enhance their catalytic activity and selectivity. However, ligand‐induced structure transition catalyst its effect on performance is not clear. In this study, a thiol strategy developed prepare sulfur‐capped mesoporous PtPbBi nanosheets (S‐PtPbBi MNSs) with an alloy/intermetallic compound heterophase inhomogeneous tensile strain (≈3%). The obtained S‐PtPbBi MNSs exhibit excellent electrocatalytic for ethylene glycol oxidation reaction (EGOR), achieving Faradic efficiency up 92% converting EG glycolic acid. EG‐assisted electrochemical water splitting, only require low cell voltage 0.60 V achieve current density 10 mA cm −2 . anion exchange membrane electrolyzer utilizing can drive 500 at 1.63 V, along exceptional stability 200 h. Density functional theory calculations reveal that facilitates adsorption reactants enhances electron transfer between key intermediate. This work provides deep insights into ligand modification‐induced construction novel catalysts creates new opportunities small molecule‐assisted splitting efficient production hydrogen.

Language: Английский

Citations

0
Improved Ethylene Glycol Electro-Oxidation Using xPtyPd Electrocatalysts on Aza-BODIPY-Modified Carbon Black DOI
Suwaphid Themsirimongkon, Kullapa Chanawanno, Paralee Waenkaew

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 29, 2025

This study presents an innovative approach for synthesizing bimetallic platinum (Pt) and palladium (Pd) electrocatalysts supported on aza-boron-dipyrromethene (aza-BODIPY, or DP)-modified carbon black (DP-C) to enhance the catalytic oxidation of ethylene glycol (EG) in alkaline media. DP as a modifier optimizes interaction between active metal nanoparticles support, improving activity. Pt Pd alloy were electrodeposited DP-C via cyclic voltammetry (CV), forming catalyst denoted xPtyPd/DP-C. The catalysts characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), photoelectron spectroscopy (XPS), revealing spherical with varying surface areas. Electrochemical tests, including CV, chronoamperometry (CA), electrochemical impedance (EIS), show that xPtyPd/DP-C exhibits superior EG performance, transfer, CO resistance, durability. mass specific activities PtPdPtPd/DP-C 1.4 1.2 times higher than Pt/C. Chemical doping heteroatoms tailors its properties, enhancing performance support formation metals. work provides promising strategy developing high-performance anode direct fuel cells.

Language: Английский

Citations

0