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Develop an aqueous dual-ligand seed-mediated strategy to synthesize uniform sub-5 nm bimetallic and trimetallic nanoparticles by resolving reduction potential mismatches between noble and base metals.

August 15, 2026Angewandte Chemie International Edition

Synthesizing Colloidal Bimetallic Nanoparticles in Water Using a Dual‐Ligand Strategy

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Authors

PCPin‐Hung Chung AHAlex M. Fontani Herreros JOJinwon Oh

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Overview

Experimental study demonstrates a dual-ligand aqueous synthesis of uniform sub-5 nm bimetallic nanoparticles, highlighting enhanced catalytic carbon dioxide hydrogenation to ethanol.

Key Points

Develop an aqueous dual-ligand seed-mediated strategy to synthesize uniform sub-5 nm bimetallic and trimetallic nanoparticles by resolving reduction potential mismatches between noble and base metals.
Utilized polyvinylpyrrolidone (PVP) as a steric stabilizer for seed formation and polyethyleneimine (PEI) as a chelating agent to regulate base metal reduction on seed surfaces.
Synthesized pairs of noble metal seeds (Pt, Pd, Rh) with base metals (Cu, Ni, Co, Fe) across tunable atomic ratios and extended the method to trimetallic systems.
Tested the catalytic performance of the synthesized bimetallic nanoparticles in carbon dioxide (CO2) hydrogenation.
Successfully produced uniform bimetallic nanoparticles with tunable noble-to-base metal atomic ratios ranging from 3:1 to 1:2, as well as Pt/Cu/Co and Pt/Cu/Ni trimetallic nanoparticles.
Optimized Rh-Fe interfaces and active Rh sites to significantly boost catalytic activity and ethanol selectivity in CO2 hydrogenation.

Cite This Study

Chung et al. (2026) studied this question.

synapsesocial.com/papers/6a8019bb75c2e31742c85e11 https://doi.org/10.1002/anie.5050054

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August 15, 2026Angewandte Chemie International Edition

Synthesizing Colloidal Bimetallic Nanoparticles in Water Using a Dual‐Ligand Strategy

View Full Paper

Ask AI

Bookmark

Authors

PCPin‐Hung Chung AHAlex M. Fontani Herreros JOJinwon Oh

Discussion

Member takes

Overview

Experimental study demonstrates a dual-ligand aqueous synthesis of uniform sub-5 nm bimetallic nanoparticles, highlighting enhanced catalytic carbon dioxide hydrogenation to ethanol.

Key Points

Develop an aqueous dual-ligand seed-mediated strategy to synthesize uniform sub-5 nm bimetallic and trimetallic nanoparticles by resolving reduction potential mismatches between noble and base metals.
Utilized polyvinylpyrrolidone (PVP) as a steric stabilizer for seed formation and polyethyleneimine (PEI) as a chelating agent to regulate base metal reduction on seed surfaces.
Synthesized pairs of noble metal seeds (Pt, Pd, Rh) with base metals (Cu, Ni, Co, Fe) across tunable atomic ratios and extended the method to trimetallic systems.
Tested the catalytic performance of the synthesized bimetallic nanoparticles in carbon dioxide (CO2) hydrogenation.
Successfully produced uniform bimetallic nanoparticles with tunable noble-to-base metal atomic ratios ranging from 3:1 to 1:2, as well as Pt/Cu/Co and Pt/Cu/Ni trimetallic nanoparticles.
Optimized Rh-Fe interfaces and active Rh sites to significantly boost catalytic activity and ethanol selectivity in CO2 hydrogenation.

Cite This Study

Chung et al. (2026) studied this question.

synapsesocial.com/papers/6a8019bb75c2e31742c85e11 https://doi.org/10.1002/anie.5050054

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