Nanoparticle Electrocatalysts (eg: Ag NPs, Sn NPs, Cu NPs) for CO2 Electroreduction (CO2RR), 1 g/bottle, CCO2RRNE

Electrocatalyst powders for CO2 Electroreduction (CO2RR) are specifically engineered to convert carbon dioxide into high-value chemicals like Ethylene (C2H4), Ethanol (C2H5OH), Carbon Monoxide (CO), or Formic Acid (HCOOH).

Silver nanoparticles (AgNPs) are among the most efficient catalysts for the electrochemical reduction of CO2 to Carbon Monoxide (CO). Silver is effective because it binds the *COOH intermediate just strongly enough to facilitate the reaction, but binds the final *CO weakly, allowing it to desorb quickly and free up the active site.

Tin (Sn) nanoparticles are the primary catalyst for the production of Formate (HCOO-) or Formic Acid (HCOOH). Tin operates via a 2-electron transfer. Its high selectivity for formate is driven by its interaction with the OCHO* intermediate: (1) Weak CO Affinity: Tin has a very low binding affinity for CO, which prevents the catalyst from being "poisoned" and suppresses the pathway toward hydrocarbons. (2) The Oxide Interface: Recent operando studies confirm that the most active phase is often a metastable Sn/SnOx interface. The presence of surface oxides and oxygen vacancies lowers the energy barrier for CO2 activation while simultaneously suppressing the competing Hydrogen Evolution Reaction (HER).

Copper is the only metal capable of producing multi-carbon (C2+) chemicals such as Ethylene (C2H4), Ethanol (C2H5OH), and Propanol at significant rates. (1) For Ethylene (C2H4): Favored by high local pH and low water availability, which can be realized by using hydrophobic coatings (like specific alkyl chains or PTFE) on CuNPs enriches the local concentration of CO2 and *CO intermediates. This promotes the symmetric coupling of two *CO molecules, leading to ethylene. (2) For Ethanol (C2H5OH): Favored by hydrogenation-rich environments., which can be achieved by introducing "proton-donating" groups or superhydrophobic surfaces that weaken hydrogen bonding can steer the reaction. For example, Cu nanofibers coated with conductive polypyrrole using PVP templates have achieved a remarkable 66.5% FE for ethanol by promoting the asymmetric coupling of *CO and *CHO.

Part Number	CCO2RRNEAg	CCO2RRNESn	CCO2RRNECu
Active Catalyst	Ag NPs	Sn NPs	Cu NPs
Particle Size	50-80 nm	50-80 nm	30-50 nm
Target Products	CO	Formate (salt)	C2+
Testing Performance
Package Size	1.0 g/bottle

Notes: Please try to store the nanoparticle electrocatalyst powder in a dry place.

References: 

1. X. Deng, et al. Breaking the Limit of Size-Dependent CO2RR Selectivity in Silver Nanoparticle Electrocatalysts through Electronic Metal–Carbon Interactions, ACS Catal. 2023, 13, 23, 15301–15309.
2. J. Tian, et al. Highly Efficient and Selective CO2 Electro-Reduction to HCOOH on Sn Particle-Decorated Polymeric Carbon Nitride, ChemSusChem, 2020, 13, 6442-6448.
3. Q. Chang, et al. Electrochemical CO2 Reduction Reaction over Cu Nanoparticles with Tunable Activity and Selectivity Mediated by Functional Groups in Polymeric Binder, JACS Au 2022, 2, 1, 214–222.