All Outputs (23)

Direct formation of copper nanoparticles from atoms at graphitic step edges lowers overpotential and improves selectivity of electrocatalytic CO2 reduction (2024)
Journal Article
Burwell, T., Thangamuthu, M., Aliev, G. N., Ghaderzadeh, S., Kohlrausch, E. C., Chen, Y., …Khlobystov, A. N. (2024). Direct formation of copper nanoparticles from atoms at graphitic step edges lowers overpotential and improves selectivity of electrocatalytic CO2 reduction. Communications Chemistry, 7(1), Article 140. https://doi.org/10.1038/s42004-024-01218-y

A key strategy for minimizing our reliance on precious metals is to increase the fraction of surface atoms and improve the metal-support interface. In this work, we employ a solvent/ligand/counterion-free method to deposit copper in the atomic form d... Read More about Direct formation of copper nanoparticles from atoms at graphitic step edges lowers overpotential and improves selectivity of electrocatalytic CO2 reduction.

From scrap metal to highly efficient electrodes: harnessing the nanotextured surface of swarf for effective utilisation of Pt and Co for hydrogen production (2024)
Journal Article
Thangamuthu, M., Kohlrausch, E. C., Li, M., Speidel, A., Clare, A. T., Plummer, R., …Alves Fernandes, J. (2024). From scrap metal to highly efficient electrodes: harnessing the nanotextured surface of swarf for effective utilisation of Pt and Co for hydrogen production. Journal of Materials Chemistry A, 12(25), 15137-15144. https://doi.org/10.1039/d4ta00711e

Hydrogen is considered to be the key element to achieving climate neutrality, leading to a massive demand for electrocatalysts. This work explores the transformation of metal waste into active and stable electrode materials for water splitting by mod... Read More about From scrap metal to highly efficient electrodes: harnessing the nanotextured surface of swarf for effective utilisation of Pt and Co for hydrogen production.

Synergy of nanocrystalline carbon nitride with Cu single atom catalyst leads to selective photocatalytic reduction of CO2 to methanol (2024)
Journal Article
LeMercier, T. M., Thangamuthu, M., Kohlrausch, E. C., Chen, Y., Stoppiello, C. T., Fay, M. W., …Khlobystov, A. N. (2024). Synergy of nanocrystalline carbon nitride with Cu single atom catalyst leads to selective photocatalytic reduction of CO2 to methanol. Sustainable Energy and Fuels, 1691-1703. https://doi.org/10.1039/D4SE00028E

Carbon nitride (C3N4) possesses both a band gap in the visible range and a low-lying conduction band potential, suitable for water splitting and CO2 reduction reactions (CO2RR). Yet, bulk C3N4 (b-C3N4) suffers from structural disorder leading to slug... Read More about Synergy of nanocrystalline carbon nitride with Cu single atom catalyst leads to selective photocatalytic reduction of CO2 to methanol.

Selective Excitation of Pd-decorated Titania Enables Consecutive C−C Couplings and Hydrogenations under Ambient Conditions (2023)
Journal Article
Whitehead, R. Z., Norman, L. T., Cull, W. J., Fernandes, J. A., & Lanterna, A. E. (2023). Selective Excitation of Pd-decorated Titania Enables Consecutive C−C Couplings and Hydrogenations under Ambient Conditions. ChemCatChem, 15(21), Article e202300528. https://doi.org/10.1002/cctc.202300528

Here, we discovered that Pd decorated TiO2 (Pd@TiO2) enables consecutive photocatalytic Sonogashira C−C coupling and hydrogenation steps by simply adjusting the excitation conditions of the reaction. We demonstrated that by-products containing iodine... Read More about Selective Excitation of Pd-decorated Titania Enables Consecutive C−C Couplings and Hydrogenations under Ambient Conditions.

Chemical Kinetics of Metal Single Atom and Nanocluster Formation on Surfaces: An Example of Pt on Hexagonal Boron Nitride (2023)
Journal Article
Popov, I., Ghaderzadeh, S., Kohlrausch, E. C., Norman, L. T., Slater, T. J. A., Aliev, G. N., …Besley, E. (2023). Chemical Kinetics of Metal Single Atom and Nanocluster Formation on Surfaces: An Example of Pt on Hexagonal Boron Nitride. Nano Letters, https://doi.org/10.1021/acs.nanolett.3c01968

The production of atomically dispersed metal catalysts remains a significant challenge in the field of heterogeneous catalysis due to coexistence with continuously packed sites such as nanoclusters and nanoparticles. This work presents a comprehensiv... Read More about Chemical Kinetics of Metal Single Atom and Nanocluster Formation on Surfaces: An Example of Pt on Hexagonal Boron Nitride.

Unravelling synergistic effects in bi-metallic catalysts: deceleration of palladium–gold nanoparticle coarsening in the hydrogenation of cinnamaldehyde (2023)
Journal Article
Pinto, J., Weilhard, A., Norman, L. T., Lodge, R. W., Rogers, D. M., Gual, A., …Alves Fernandes, J. (2023). Unravelling synergistic effects in bi-metallic catalysts: deceleration of palladium–gold nanoparticle coarsening in the hydrogenation of cinnamaldehyde. Catalysis Science and Technology, https://doi.org/10.1039/d3cy00289f

In this work, we demonstrate that the synergistic effect of PdAu nanoparticles (NPs) in hydrogenation reactions is not only related to high activity but also to their stability when compared to Pd mono-metallic NPs. To demonstrate this, a series of m... Read More about Unravelling synergistic effects in bi-metallic catalysts: deceleration of palladium–gold nanoparticle coarsening in the hydrogenation of cinnamaldehyde.

Interchangeable Biomass Fuels for Paper-Based Microfluidic Fuel Cells: Finding Their Power Density Limits (2023)
Journal Article
Lima, A. L. D., Rocha, P. M., Silva, A. C., Alves Fernandes, J., & Martins, C. A. (2023). Interchangeable Biomass Fuels for Paper-Based Microfluidic Fuel Cells: Finding Their Power Density Limits. ACS Applied Materials and Interfaces, 15(9), 11895–11905. https://doi.org/10.1021/acsami.2c23192

Paper batteries are self-pumping emerging tools for powering portable analytical systems. These disposable energy converters must be low-cost and must achieve enough energy to power electronic devices. The challenge is reaching high energy while keep... Read More about Interchangeable Biomass Fuels for Paper-Based Microfluidic Fuel Cells: Finding Their Power Density Limits.

Host–Guest Chemistry in Boron Nitride Nanotubes: Interactions with Polyoxometalates and Mechanism of Encapsulation (2022)
Journal Article
Jordan, J. W., Chernov, A. I., Rance, G. A., Stephen Davies, E., Lanterna, A. E., Alves Fernandes, J., …Khlobystov, A. N. (2023). Host–Guest Chemistry in Boron Nitride Nanotubes: Interactions with Polyoxometalates and Mechanism of Encapsulation. Journal of the American Chemical Society, 145(2), 1206-1215. https://doi.org/10.1021/jacs.2c10961

Boron nitride nanotubes (BNNTs) are an emerging class of molecular container offering new functionalities and possibilities for studying molecules at the nanoscale. Herein, BNNTs are demonstrated as highly effective nanocontainers for polyoxometalate... Read More about Host–Guest Chemistry in Boron Nitride Nanotubes: Interactions with Polyoxometalates and Mechanism of Encapsulation.

A high-throughput, solvent free method for dispersing metal atoms directly onto supports (2021)
Journal Article
Kohlrausch, E. C., Centurion, H. A., Lodge, R. W., Luo, X., Slater, T., Santos, M. J. L., …Alves Fernandes, J. (2021). A high-throughput, solvent free method for dispersing metal atoms directly onto supports. Journal of Materials Chemistry A, 9(47), 26676-26679. https://doi.org/10.1039/d1ta08372d

Atomically-dispersed metal catalysts (ADMCs) on surfaces have demonstrated high activity and selectivity in many catalytic reactions. However, dispersing and stabilising individual atoms in support materials in an atom/energy-efficient scalable way s... Read More about A high-throughput, solvent free method for dispersing metal atoms directly onto supports.

Continuous‐Flow Synthesis of Orange Emitting Sn(II)‐Doped CsBr Materials (2021)
Journal Article
Das Adhikari, S., Masi, S., Echeverría‐Arrondo, C., Miralles‐Comins, S., Sánchez, R. S., Fernandes, J. A., …Mora‐Seró, I. (2021). Continuous‐Flow Synthesis of Orange Emitting Sn(II)‐Doped CsBr Materials. Advanced Optical Materials, 9(21), Article 2101024. https://doi.org/10.1002/adom.202101024

An ongoing demand toward lead-free all-inorganic cesium metal halide perovskites has presented Sn(II) as an ideal substitute of Pb(II) for applications in optoelectronic devices. The major concern regarding Sn(II) is the instability due to the ambien... Read More about Continuous‐Flow Synthesis of Orange Emitting Sn(II)‐Doped CsBr Materials.

Revealing the true impact of interstitial and substitutional nitrogen doping in TiO2 on photoelectrochemical applications (2021)
Journal Article
Khan, S., Lemes Ruwer, T., Khan, N., Köche, A., Lodge, R. W., Coelho-Júnior, H., …Fernandes, J. A. (2021). Revealing the true impact of interstitial and substitutional nitrogen doping in TiO2 on photoelectrochemical applications. Journal of Materials Chemistry A, 9(20), 12214-12224. https://doi.org/10.1039/d0ta11494d

Application of photocatalysts that strongly absorb within the visible range is a common strategy to improve the efficiency of photoelectrochemical (PEC) systems; this may translate to high photocurrents, but it is not always the case. Here, we show t... Read More about Revealing the true impact of interstitial and substitutional nitrogen doping in TiO2 on photoelectrochemical applications.

A Cooperative Photoactive Class-I Hybrid Polyoxometalate With Benzothiadiazole–Imidazolium Cations (2021)
Journal Article
Kibler, A. J., Souza, V. S., Fernandes, J. A., Lewis, W., Argent, S. P., Dupont, J., & Newton, G. N. (2021). A Cooperative Photoactive Class-I Hybrid Polyoxometalate With Benzothiadiazole–Imidazolium Cations. Frontiers in Chemistry, 8, Article 612535. https://doi.org/10.3389/fchem.2020.612535

An organic–inorganic hybrid species based on the Wells–Dawson polyoxotungstate [P2W18O62]6− and novel fluorescent benzothiadiazole–imidazolium cations, [BTD-4,7-ImH]2+, has been synthesized. X-ray crystallographic analysis shows that the inorganic an... Read More about A Cooperative Photoactive Class-I Hybrid Polyoxometalate With Benzothiadiazole–Imidazolium Cations.

General synthesis of single atom electrocatalysts: via a facile condensation-carbonization process (2020)
Journal Article
Chen, W., Luo, X., Slater, T. . J., Ling, S., Zhou, Y., Bao, R., …Shen, Y. (2020). General synthesis of single atom electrocatalysts: via a facile condensation-carbonization process. Journal of Materials Chemistry A, 8(48), 25959-25969. https://doi.org/10.1039/d0ta08115a

The general and cost-effective synthesis of single atom electrocatalysts (SAECs) still remains a great challenge. Herein, we report a general synthetic protocol for the synthesis of SAECs via a simple condensation-carbonization process, in which furf... Read More about General synthesis of single atom electrocatalysts: via a facile condensation-carbonization process.

Reverse Semi‐Combustion Driven by Titanium Dioxide‐Ionic Liquid Hybrid Photocatalyst (2020)
Journal Article
Qadir, M. I., Zanatta, M., Pinto, J., Vicente, I., Gual, A., Smith, E., …Alves Fernandes, J. (2020). Reverse Semi‐Combustion Driven by Titanium Dioxide‐Ionic Liquid Hybrid Photocatalyst. ChemSusChem, 13(20), 5580-5585. https://doi.org/10.1002/cssc.202001717

Unprecedented metal‐free photocatalytic CO2 conversion to CO (up to 228±48 μmol g−1 h−1) was displayed by TiO2@IL hybrid photocatalysts prepared by simple impregnation of commercially available P25‐titanium dioxide with imidazolium‐based ionic liquid... Read More about Reverse Semi‐Combustion Driven by Titanium Dioxide‐Ionic Liquid Hybrid Photocatalyst.

Use of an optofluidic microreactor and Cu nanoparticles synthesized in ionic liquid and embedded in TiO2 for an efficient photoreduction of CO2 to methanol (2020)
Journal Article
Albo, J., Qadir, M. I., Samperi, M., Alves Fernandes, J., de Pedro, I., & Dupont, J. (2021). Use of an optofluidic microreactor and Cu nanoparticles synthesized in ionic liquid and embedded in TiO2 for an efficient photoreduction of CO2 to methanol. Chemical Engineering Journal, 404, Article 126643. https://doi.org/10.1016/j.cej.2020.126643

Redox‐Active Hybrid Polyoxometalate‐Stabilised Gold Nanoparticles (2020)
Journal Article
Martin, C., Kastner, K., Cameron, J. M., Hampson, E., Alves Fernandes, J., Gibson, E. K., …Newton, G. N. (2020). Redox‐Active Hybrid Polyoxometalate‐Stabilised Gold Nanoparticles. Angewandte Chemie International Edition, 59(34), 14331-14335. https://doi.org/10.1002/anie.202005629

We report the design and preparation of multifunctional hybrid nanomaterials through the stabilization of gold nanoparticles with thiol‐functionalised hybrid organic–inorganic polyoxometalates (POMs). The covalent attachment of the hybrid POM forms n... Read More about Redox‐Active Hybrid Polyoxometalate‐Stabilised Gold Nanoparticles.

Polymer photocatalysts with plasma-enhanced activity (2020)
Journal Article
Sprick, R. S., Cheetham, K. J., Bai, Y., Alves Fernandes, J., Barnes, M., Bradley, J. W., & Cooper, A. I. (2020). Polymer photocatalysts with plasma-enhanced activity. Journal of Materials Chemistry A, 8(15), 7125-7129. https://doi.org/10.1039/d0ta01200a

Plasma treatment was used as a new method to enhance the photocatalytic performance of a hydrophobic polymer photocatalyst. The sacrificial hydrogen evolution rate was enhanced by a factor of more than 8 after a plasma treatment time of 20 minutes. C... Read More about Polymer photocatalysts with plasma-enhanced activity.

Highly modulated supported triazolium-based ionic liquids: direct control of the electronic environment on Cu nanoparticles (2020)
Journal Article
Valdebenito, C., Pinto, J., Nazarkovsky, M., Chacón, G., Martínez-Ferraté, O., Wrighton-Araneda, K., …Abarca, G. (2020). Highly modulated supported triazolium-based ionic liquids: direct control of the electronic environment on Cu nanoparticles. Nanoscale Advances, 2(3), 1325-1332. https://doi.org/10.1039/d0na00055h

A series of new triazolium-based supported ionic liquids (SILPs), decorated with Cu NPs, were successfully prepared and applied to the N-arylation of aryl halides with anilines. The triazoles moieties were functionalised using copper-catalysed azide–... Read More about Highly modulated supported triazolium-based ionic liquids: direct control of the electronic environment on Cu nanoparticles.

Cerium Oxide Nanoparticles Inside Carbon Nanoreactors for Selective Allylic Oxidation of Cyclohexene (2020)
Journal Article
Agasti, N., Astle, M. A., Rance, G. A., Alves Fernandes, J., Dupont, J., & Khlobystov, A. N. (2020). Cerium Oxide Nanoparticles Inside Carbon Nanoreactors for Selective Allylic Oxidation of Cyclohexene. Nano Letters, 20(2), 1161-1171. https://doi.org/10.1021/acs.nanolett.9b04579

The confinement of cerium oxide (CeO2) nanoparticles within hollow carbon nanostructures has been achieved and harnessed to control the oxidation of cyclohexene. Graphitized carbon nanofibers (GNF) have been used as the nanoscale tubular host and fil... Read More about Cerium Oxide Nanoparticles Inside Carbon Nanoreactors for Selective Allylic Oxidation of Cyclohexene.

Paramagnetic ionic liquid-coated SiO2@Fe3O4 nanoparticles—The next generation of magnetically recoverable nanocatalysts applied in the glycolysis of PET (2019)
Journal Article
Cano, I., Martin, C., Fernandes, J. A., Lodge, R. W., Dupont, J., Casado-Carmona, F. A., …de Pedro, I. (2020). Paramagnetic ionic liquid-coated SiO2@Fe3O4 nanoparticles—The next generation of magnetically recoverable nanocatalysts applied in the glycolysis of PET. Applied Catalysis B: Environmental, 260, Article 118110. https://doi.org/10.1016/j.apcatb.2019.118110

The functionalization of silica-coated, magnetic Fe3O4 nanoparticles, with an ironcontaining ionic liquid, allows for the synthesis of a Fe3O4@SiO2@(mim)[FeCl4] system that can be employed as a magnetically recoverable nanocatalyst. Herein, we prese... Read More about Paramagnetic ionic liquid-coated SiO2@Fe3O4 nanoparticles—The next generation of magnetically recoverable nanocatalysts applied in the glycolysis of PET.