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Title: Synthesis and Characterization of Mesoporous Silica Nanoparticles Loaded with Pt Catalysts

Journal Article · · Catalysts
 [1];  [2];  [3];  [4];  [3]; ORCiD logo [5]
  1. Northern Illinois Univ., DeKalb, IL (United States)
  2. Iowa State Univ., Ames, IA (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Iowa State Univ., Ames, IA (United States); Ames Lab., Ames, IA (United States)
  5. Northern Illinois Univ., DeKalb, IL (United States); Argonne National Lab. (ANL), Argonne, IL (United States)

Coating the catalyst with a nanoporous layer has been demonstrated to be an effective approach to improve catalyst stability. Herein, we systematically investigate two types of core-shell mesoporous silica nanoparticles with a platinum nanocatalyst using a variety of characterization methods. One of the mesoporous particles has a unique amine ring structure in the middle of a shell (Ring-mSiO2/Pt-5.0/SiO2), and the other one has no ring structure (mSiO2/Pt-5.0/SiO2). Brunauer–Emmett–Teller/Barrett–Joyner–Halenda (BET/BJH) presented a similar surface area for both particles, and the pore size was 2.4 nm. Ultra-Small-Angle X-ray Scattering (USAXS)/ Small-Angle X-ray Scattering (SAXS) showed the size of mSiO2/Pt-5.0/SiO2 and Ring-mSiO2/Pt-5.0/SiO2 were 420 nm and 272 nm, respectively. It also showed that the ring structure was 30 nm above the silica core. Using high-resolution Transmission Electron Microscopy (TEM), it was found that the platinum nanoparticles are loaded evenly on the surface of the silica. In situ SAXS heating experiments and Thermogravimetric Analysis (TGA) indicated that the mSiO2/Pt-5.0/SiO2 were more stable during the high temperature, while the Ring-mSiO2/Pt-5.0/SiO2 had more change in the particle.

Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division
Grant/Contract Number:
AC02-07CH11358; AC02-06CH11357
OSTI ID:
1846431
Report Number(s):
Is-J-10,710
Journal Information:
Catalysts, Journal Name: Catalysts Journal Issue: 2 Vol. 12; ISSN 2073-4344
Publisher:
MDPICopyright Statement
Country of Publication:
United States
Language:
English

References (40)

Biomolecular Assembly of Thermoresponsive Superlattices of the Tobacco Mosaic Virus with Large Tunable Interparticle Distances journal May 2013
Sub‐5 nm Intermetallic Nanoparticles Confined in Mesoporous Silica Wells for Selective Hydrogenation of Acetylene to Ethylene journal April 2020
High-Temperature-Stable and Regenerable Catalysts: Platinum Nanoparticles in Aligned Mesoporous Silica Wells journal August 2013
Synthetic Lubricants Derived from Plastic Waste and their Tribological Performance journal June 2021
Current approaches to waste polymer utilization and minimization: a review: Current approaches to waste polymer utilization and minimization journal August 2018
Upcycling Plastic Waste into High Value‐Added Carbonaceous Materials journal November 2021
Ultra-Small-Angle X-ray Scattering Instrument at the Advanced Photon Source: History, Recent Development, and Current Status journal October 2012
The application of mesoporous silica nanoparticle family in cancer theranostics journal July 2016
Application of mesoporous silica nanoparticles as drug delivery carriers for chemotherapeutic agents journal August 2020
A SAXS study of the pore structure evolution in biochar during gasification in H2O, CO2 and H2O/CO2 journal May 2021
Synthesis, characterization and application of mesoporous silica in removal of cobalt ions from contaminated water journal October 2020
Carbon nanotubes synthetized from gaseous products of waste polymer pyrolysis and their application journal July 2016
Current technologies for plastic waste treatment: A review journal February 2021
Reliable surface area determination of powders and meso/macroporous materials: Small-angle X-ray scattering and gas physisorption journal January 2022
Recent advances in the application of mesoporous silica-based nanomaterials for bone tissue engineering journal February 2020
Plastic waste in the marine environment: A review of sources, occurrence and effects journal October 2016
An analysis of the plastic waste trade and management in Asia journal January 2021
Catalytic pyrolysis of petroleum-based and biodegradable plastic waste to obtain high-value chemicals journal May 2021
Exploring Pore Formation of Atomic Layer-Deposited Overlayers by in Situ Small- and Wide-Angle X-ray Scattering journal September 2016
Small Angle X-ray Scattering for Nanoparticle Research journal April 2016
Scalable Synthesis of Pt/SrTiO 3 Hydrogenolysis Catalysts in Pursuit of Manufacturing-Relevant Waste Plastic Solutions journal December 2021
Understanding Pore Formation in ALD Alumina Overcoats journal April 2020
Atomic Layer Deposition Overcoating Improves Catalyst Selectivity and Longevity in Propane Dehydrogenation journal November 2020
Upcycling Single-Use Polyethylene into High-Quality Liquid Products journal September 2019
Pore Structure and Bifunctional Catalyst Activity of Overlayers Applied by Atomic Layer Deposition on Copper Nanoparticles journal April 2014
Ingested Microscopic Plastic Translocates to the Circulatory System of the Mussel, Mytilus edulis (L.) journal July 2008
Single Molecule Investigation of Nanoconfinement Hydrophobicity in Heterogeneous Catalysis journal July 2020
Conversion of Polyolefin Waste to Liquid Alkanes with Ru-Based Catalysts under Mild Conditions journal December 2020
Hollow Mesoporous Aluminosilica Spheres with Perpendicular Pore Channels as Catalytic Nanoreactors journal April 2012
Classify plastic waste as hazardous journal February 2013
Deciphering nanoconfinement effects on molecular orientation and reaction intermediate by single molecule imaging journal October 2019
Chemical recycling of waste plastics for new materials production journal June 2017
In situ quantitative single-molecule study of dynamic catalytic processes in nanoconfinement journal January 2018
Microwave-initiated catalytic deconstruction of plastic waste into hydrogen and high-value carbons journal October 2020
Catalytic upcycling of high-density polyethylene via a processive mechanism journal October 2020
Chemical and biological catalysis for plastics recycling and upcycling journal July 2021
Enhanced stability of cobalt catalysts by atomic layer deposition for aqueous-phase reactions journal January 2014
Efficient and selective degradation of polyethylenes into liquid fuels and waxes under mild conditions journal June 2016
The United States’ contribution of plastic waste to land and ocean journal October 2020
Plastic waste inputs from land into the ocean journal February 2015