Using Reduction Kinetics to Control and Predict the Outcome of a Colloidal Synthesis of Noble-Metal Nanocrystals

被引:16
|
作者
Nguyen, Quynh N. [1 ]
Chen, Ruhui [1 ]
Lyu, Zhiheng [1 ]
Xia, Younan [1 ,2 ,3 ,4 ]
机构
[1] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA
[2] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA
[3] Georgia Inst Technol, Wallace H Coulter Dept Biomed Engn, Atlanta, GA 30332 USA
[4] Emory Univ, Atlanta, GA 30332 USA
基金
美国国家科学基金会;
关键词
ONE-POT SYNTHESIS; SHAPE-CONTROLLED SYNTHESIS; IR(0)(N) NANOPARTICLE FORMATION; PT BIMETALLIC NANOCRYSTALS; CORE-SHELL NANOPARTICLES; QUANTITATIVE-ANALYSIS; FACILE SYNTHESIS; POLY(VINYL PYRROLIDONE); PALLADIUM NANOCRYSTALS; PLATINUM NANOCRYSTALS;
D O I
10.1021/acs.inorgchem.0c03576
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Improving the performance of noble-metal nanocrystals in various applications critically depends on our ability to manipulate their synthesis in a rational, robust, and controllable fashion. Different from a conventional trial-and-error approach, the reduction kinetics of a colloidal synthesis has recently been demonstrated as a reliable knob for controlling the synthesis of noble-metal nanocrystals in a deterministic and predictable manner. Here we present a brief Viewpoint on the recent progress in leveraging reduction kinetics for controlling and predicting the outcome of a synthesis of noble-metal nanocrystals. With a focus on Pd nanocrystals, we first offer a discussion on the correlation between the initial reduction rate and the internal structure of the resultant seeds. The kinetic approaches for controlling both nucleation and growth in a one-pot setting are then introduced with an emphasis on manipulation of the reduction pathways taken by the precursor. We then illustrate how to extend the strategy into a bimetallic system for the preparation of nanocrystals with different shapes and elemental distributions. Finally, the influence of speciation of the precursor on reduction kinetics is highlighted, followed by our perspectives on the challenges and future endeavors in achieving a controllable and predictable synthesis of noble-metal nanocrystals.
引用
收藏
页码:4182 / 4197
页数:16
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