Pt-Cu nanoparticles constructed with a hollow core and porous shell have been synthesized in which Pt-Cu cages with multiporous outermost shells are formed at the initial stage and then the Pt and Cu atoms in solution continuously fed these hollow-core of cages by passing through the porous tunnels of the outermost shells, finally leading to the formation of hollow structures with different sizes. Furthermore, these hollow-core Pt-Cu nanoparticles are more effective than the solid-core Pt-Cu nanoparticles for the catalytic hydrogenation of furfural toward furfuryl alcohol. The former can achieve almost 100% conversion of furfural with 100% selectivity toward the alcohol.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/c6nr03894h | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Energy-Transfer-Based Dual-Mode PEC-ECL Biosensor for Acetamiprid Analysis Sensitized by Two-Step DNA Circuit Amplification.
ACS Appl Mater Interfaces
January 2025
School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China.
Sensitive and accurate determination of acetamiprid is highly desirable for guaranteeing food safety. In this Letter, an energy-transfer-based dual-mode biosensor was developed using zinc-based metal-organic frameworks (Zn-MOFs) acting as both photoelectrochemical (PEC) and electrochemiluminescent (ECL) donors and Pt@CuO cubic nanocrystals (CNs) as the energy acceptor for detecting acetamiprid. By integration of aptamer recognition with two-step DNA circuit amplification (entropy-driven DNA cycle and DNA walker), the detection of acetamiprid was converted into the assay of abundant intermediate DNA strands.
View Article and Find Full Text PDFDynamic Behavior of Pt Multimetallic Alloys for Active and Stable Propane Dehydrogenation Catalysts.
J Am Chem Soc
November 2024
Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States.
Article Synopsis
- * The study demonstrates that Pt/Cu alloy nanoparticles on alumina outperform traditional Pt catalysts due to a unique core-shell structure that increases activity, but face challenges with metal diffusion over time.
- * Introducing cobalt to create trimetallic catalysts stabilizes the structure, maintaining high catalytic activity and improving performance compared to the original Pt/Cu system.
Precision-engineered metal and metal-oxide nanoparticles for biomedical imaging and healthcare applications.
Adv Colloid Interface Sci
October 2024
Industry 4.0 Convergence Bionics Engineering, Department of Biomedical Engineering, Pukyong National University, Busan 48513, Republic of Korea; Digital Healthcare Research Center, Institute of Information Technology and Convergence, Pukyong National University, Busan 48513, Republic of Korea; Smart Gym-Based Translational Research Center for Active Senior's Healthcare, Pukyong National University, Busan 48513, Republic of Korea; Ohlabs Corp., Busan 48513, Republic of Korea. Electronic address:
The growing field of nanotechnology has witnessed numerous advancements over the past few years, particularly in the development of engineered nanoparticles. Compared with bulk materials, metal nanoparticles possess more favorable properties, such as increased chemical activity and toxicity, owing to their smaller size and larger surface area. Metal nanoparticles exhibit exceptional stability, specificity, sensitivity, and effectiveness, making them highly useful in the biomedical field.
View Article and Find Full Text PDFSandwich-type electrochemical aptasensor for sensitive detection of myoglobin based on Pt@CuCo-oxide nanoparticles as a signal marker.
Talanta
May 2024
Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, PR China; Research Center of Analysis and Test, East China University of Science and Technology, Shanghai, 200237, PR China. Electronic address:
When an acute myocardial infarction (AMI) occurs, myoglobin (Mb) is the biomarker whose concentration firstly increases, and the high sensitive detection of Mb is critical for early diagnosis of AMI. Herein, a sandwich-type electrochemical aptasensor for the sensitive detection of Mb was constructed by using Pt@CuOCoO as the signal marker. On one hand, nano-flower-like CuOCoO was synthesized by hydrothermal method and Pt nanoparticles (Pt NPs) were loaded on its surface.
View Article and Find Full Text PDFElectrothermal Transformations within Graphene-Based Aerogels through High-Temperature Flash Joule Heating.
J Am Chem Soc
January 2024
School of Chemistry, University of Leeds, Leeds LS2 9JT, U.K.
Flash Joule heating of highly porous graphene oxide (GO) aerogel monoliths to ultrahigh temperatures is exploited as a low carbon footprint technology to engineer functional aerogel materials. Aerogel Joule heating to up to 3000 K is demonstrated for the first time, with fast heating kinetics (∼300 K·min), enabling rapid and energy-efficient flash heating treatments. The wide applicability of ultrahigh-temperature flash Joule heating is exploited in a range of material fabrication challenges.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!