Concurrent Etching and Exchange Reactions During the Partial Replacement of Cu+ with Ni2+ in Copper Sulfide Nanorods.
- 1Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania16802, United States.
- 2Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania16802, United States.
- 3Materials Research Institute, The Pennsylvania State University, University Park, PA16802, Unites States.
Abstract
Partially exchanging a fraction of the Cu+ cations in copper sulfide nanoparticles with other cations can produce heterostructured derivatives that incorporate multiple metal sulfides. Cation exchange reactions can compete with etching processes, where the exchanging cation facilitates dissolution of any remaining copper sulfide. Here, we show that during partial Ni2+ exchange of Cu1.8S nanorods to form Cu1.8S-NixSy heterostructures, etching instead occurs in the NixSy region that is undergoing exchange, rather than in Cu1.8S. Experiments that isolated individual exchange variables identified competing cation extraction, sulfur abstraction, and cation reincorporation processes that are conceptually related to reactions implicated in the hydrometallurgical processing of nickel-copper converter matte. These insights help to rationalize the unusual etching behavior observed during partial Ni2+ exchange of Cu1.8S.
Related
- Spatial halide exchange reactions for sculpting light in hybrid perovskites.
- Nanoparticle-Enabled Interfacial Kinetic Control of Bond-Exchange Reactions: Insights from Biomedical Poly(ε-caprolactone)-Based Dynamic Polymers.
- MOF‐Derived FeNi/C Composites Constructed by Controlled Etching for High‐Performance Electromagnetic Wave Absorption
- Tailoring carbon nitride nanoarchitecture and cellular interactions through hydrothermal alkaline etching
- Ligand-Length Asymmetry Controls Nanoscale Heat Flow in Gold Janus Nanorods
BibTeX
@article{jeong2026concurrent,
title = {{Concurrent Etching and Exchange Reactions During the Partial Replacement of Cu+ with Ni2+ in Copper Sulfide Nanorods.}},
author = {Chul-Hyun Jeong and Raymond E Schaak},
journal = {Inorganic chemistry},
year = {2026},
month = sep,
doi = {10.1021/acs.inorgchem.6c03606},
url = {https://europepmc.org/article/MED/42916199},
note = {CC BY},
}
RIS
TY - JOUR
TI - Concurrent Etching and Exchange Reactions During the Partial Replacement of Cu+ with Ni2+ in Copper Sulfide Nanorods.
AU - Chul-Hyun Jeong
AU - Raymond E Schaak
PY - 2026
DA - 2026/09/01
JO - Inorganic chemistry
DO - 10.1021/acs.inorgchem.6c03606
UR - https://europepmc.org/article/MED/42916199
AB - Partially exchanging a fraction of the Cu+ cations in copper sulfide nanoparticles with other cations can produce heterostructured derivatives that incorporate multiple metal sulfides. Cation exchange reactions can compete with etching processes, where the exchanging cation facilitates dissolution of any remaining copper sulfide. Here, we show that during partial Ni2+ exchange of Cu1.8S nanorods to form Cu1.8S-NixSy heterostructures, etching instead occurs in the NixSy region that is undergoing exchange, rather than in Cu1.8S. Experiments that isolated individual exchange variables identified competing cation extraction, sulfur abstraction, and cation reincorporation processes that are conceptually related to reactions implicated in the hydrometallurgical processing of nickel-copper converter matte. These insights help to rationalize the unusual etching behavior observed during partial Ni2+ exchange of Cu1.8S.
SN - 0020-1669
SN - 1520-510X
ER -