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Articles by Marc Robert
Electrochemically mediated disproportionation for selective formaldehyde upcycling in acid
Abstract Formaldehyde (FA) electrolysis is attractive for paired production of value‑added chemicals. However, conventional electrolysis adopts alkaline electrolytes, which triggers FA self-disproportionation and severe feed loss. Here we introduce a sustainable and selective strategy for valorizing FA through electrochemically mediated disproportionation in acidic electrolytes.
Manufacturing Innovation and the Role of Entrepreneurship
Item Type: MPRA Paper Original Title: Manufacturing Innovation and the Role of Entrepreneurship Language: English Keywords: Manufacturing innovation; Entrepreneurship; Entrepreneurial ecosystems; Sustainable entrepreneurship; Industry 4.0. Subjects: L - Industrial Organization > L6 - Industry Studies: Manufacturing M - Business Administration and Business Economics ; Marketing ; Accounting ; Personnel Economics > M2 - Business Economics M - Business Administration and Business Economics ;...
Self‐photosensitizing Cobalt Complexes for Photocatalytic CO2 Reduction Coupled with CH3OH Oxidation
Supporting Information As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors.
Self‐photosensitizing Cobalt Complexes for Photocatalytic CO2 Reduction Coupled with CH3OH Oxidation
Supporting Information As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors.
Dirigeants de PME : pour innover, comment identifier les acteurs clés de l'entreprise
Les dirigeants de PME sont réputés déborder d’idées, mais manquent souvent de solutions pour les concrétiser. Dans les réseaux de communication physiques et digitaux des PME se cachent des acteurs insoupçonnés, capables de faciliter ou de freiner l’acceptation d’innovations. Cet article propose une méthode pour identifier et mobiliser ces acteurs clés afin de maximiser les chances de succès de l’innovation.
Eliminating redox-mediated electron transfer mechanisms on a supported molecular catalyst enables CO2 conversion to ethanol - Nature Catalysis
Abstract Molecular catalysts play a significant role in chemical transformations, utilizing changes in redox states to facilitate reactions. To date molecular electrocatalysts have efficiently produced single-carbon products from CO2 but have struggled to achieve a carbon–carbon coupling step. Conversely, copper catalysts can enable carbon–carbon coupling, but lead to broad C2+ product spectra.
Operando Spectroelectrochemistry Unravels the Mechanism of CO2 Electrocatalytic Reduction by an Fe Porphyrin
Supporting Information As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors.
Catalytic reduction of CO2 with 4e: formaldehyde, acetal synthesis and complex transformations
Catalytic reduction of CO2 with 4e: formaldehyde, acetal synthesis and complex transformations The expansive and dynamic field of CO2 Reduction Reaction (CO2RR) seeks to harness CO2 as a sustainable carbon source or energy carrier. While significant progress has been made in two, six, and eight-electron reductions of CO2, the four-electron reduction remains understudied.
Energy arbitration in Africa: potential sources of energy and natural resources disputes
In summary This article examines four issues that are receiving increasing attention from those practising arbitration in relation to projects in Africa and that directly affect the energy sector.
Un punt dinflexió en la transformació social i urbana del Vendrell
Aquesta setmana es compleixen tres anys de la meva investidura com a alcalde i, per tant, pertoca fer un balanç de l’acció del govern municipal i del compliment dels objectius marcats per a l’actual mandat. Tot i la situació complicada que ens ha tocat viure a causa de la pandèmia, hem aconseguit un punt d’inflexió en la transformació social i urbana del Vendrell.
A CuICoII cryptate for the visible light-driven reduction of CO2
A CuICoII cryptate for the visible light-driven reduction of CO2 Among the rare bimetallic complexes known for the reduction of CO2, CoIICoII and ZnIICoII hexamine cryptates are described as efficient photocatalysts.
Strain enhances the activity of molecular electrocatalysts via carbon nanotube supports - Nature Catalysis
Abstract Support-induced strain engineering is useful for modulating the properties of two-dimensional materials. However, controlling strain of planar molecules is technically challenging due to their sub-2 nm lateral size. Additionally, the effect of strain on molecular properties remains poorly understood. Here we show that carbon nanotubes (CNTs) are ideal substrates for inducing optimum properties through molecular curvature.
Photocatalytic CO2 reduction - Nature Reviews Methods Primers
Abstract Using sunlight to power CO2 conversion into value-added chemicals and fuels is a promising technology to use anthropogenic CO2 emissions for alleviating our dependence on fossil fuels. In this Primer, we provide a holistic step-by-step guide for the experimentation of photocatalytic CO2 reduction, including catalyst synthesis and characterization, reactor construction, photocatalytic testing and mechanism exploration.
In-situ spectroscopic probe of the intrinsic structure feature of single-atom center in electrochemical CO/CO2 reduction to methanol - Nature Communications
Abstract While exploring the process of CO/CO2 electroreduction (COxRR) is of great significance to achieve carbon recycling, deciphering reaction mechanisms so as to further design catalytic systems able to overcome sluggish kinetics remains challenging. In this work, a model single-Co-atom catalyst with well-defined coordination structure is developed and employed as a platform to unravel the underlying reaction mechanism of COxRR.
Energy arbitration in Africa
In summary This article outlines some of the legal concepts faced by investors and African states involved in large energy projects when a sudden change in the legal and economic context arises, and the disputes around these concepts. It also gives insight into two trending issues for energy projects in Africa that could give rise to contractual renegotiations and arbitrations in the years to come.
Best practices for electrochemical reduction of carbon dioxide - Nature Sustainability
Carbon capture, utilization and storage, a fundamental process to a sustainable future, relies on a suite of technologies among which electrochemical reduction of carbon dioxide is essential. Here, we discuss the issues faced when reporting performance of this technology and recommend how to move forward at both materials and device levels. Electrochemical reduction of CO2 into value-added chemicals has attracted considerable attention recently1,2,3.
Electrocatalytic CO2 Reduction with a Binuclear Bis‐Terpyridine Pyrazole‐Bridged Cobalt Complex**
Introduction Mishandling of global resources has led to anthropogenic climate change.1 To decrease its harmful effects and Make Our Planet Great Again,2 shifts towards renewable energy storage,3 circular feedstocks,4 and energy-efficient processes are required.5 Consequently, molecular electrocatalysis has experienced a renewed interest,6-8 since it can contribute to sustainable and energy-efficient organic redox chemistry,9-11 and to develop new strategies towards energy storage...
Confined molecular catalysts provide an alternative interpretation to the electrochemically reversible demetallation of copper complexes - Nature Communications
arising from Z. Weng et al. Nature Communications https://doi.org/10.1038/s41467-018-02819-7 (2018) Metal phthalocyanines and porphyrins are among the most popular molecular catalysts for the electrochemical reduction of CO2. Recently, some copper-based complexes from these ligand families have been reported to promote the formation of methane and even ethylene at a high rate, an unprecedented property for a molecular catalyst1.
Molecule/Semiconductor Hybrid Materials for Visible-Light CO2 Reduction: Design Principles and Interfacial Engineering
Note Made available for a limited time for personal research and study only License. 1. Introduction The photocatalytic reduction of CO2 at ambient temperature and pressure and without externally supplied electricity is one of the ideal approaches to carbon capture and utilization. Multielectron reduction of CO2 through proton-coupled electron transfer directly gives energy-rich C1 chemicals (e.g., carbon monoxide, formate, methanol, and methane).
Mining arbitration: recent dispute trends | Lexology
Introduction Africa's economic growth has historically been linked to the fluctuation of commodity prices. The modern economy increasingly relies on numerous components derived from minerals, such as: copper; cobalt; bauxite; iron ore; tin; lithium; and gold. For instance, smartphones and electric vehicles are powered by rechargeable lithium-ion batteries, a component of which is cobalt.
Manifesto for the routine use of NMR for the liquid product analysis of aqueous CO2 reduction: from comprehensive chemical shift data to formaldehyde quantification in water
Manifesto for the routine use of NMR for the liquid product analysis of aqueous CO2 reduction: from comprehensive chemical shift data to formaldehyde quantification in water CO2 reduction research is at a critical turnaround since it has the potential to partially or even substantially fulfil future clean energy needs. CO2-to-CO electrochemical conversion is getting closer from industrial implementation requirements.
L’innovation managériale, un accélérateur de performance
L’innovation est aujourd’hui plus que jamais au cœur de l’activité économique : environ 7 chefs d’entreprises français sur 10 déclarent que l’innovation leur permet d’assurer la pérennité et la croissance de leur entreprise, et le budget global annuel consacré au développement de l’innovation dans le monde a atteint en 2018 le record de 782 milliards de dollars, en ne considérant que les dépenses de R&D. Toutefois, le concept d’innovation demeure polysémique.
L’innovation managériale, encore plus efficace que l’innovation technologique !
L’innovation est présentée aujourd’hui comme un vecteur majeur de la croissance et de la productivité des entreprises. L’enquête européenne sur l’innovation (Community Innovation Survey) réalisée en 2016 révèle que, parmi les 150 554 sociétés françaises, 51 559 ont innové en organisation, ce qui représente 34,2 % d’entre elles. En comparaison, le ratio pour les innovations technologiques (produits et procédés) n’est que de 33,3 %.
Small molecule activation with iron porphyrins using electrons, photons and protons: some recent advances and future strategies
Small molecule activation with iron porphyrins using electrons, photons and protons: some recent advances and future strategies Substituted tetraphenyl Fe porphyrins are versatile molecular catalysts for small molecule activation (such as O2, H+, CO2) that could lead to renewable energy storage, direct production of fuels or new catalytic relevant processes.
A Hybrid Co Quaterpyridine Complex/Carbon Nanotube Catalytic Material for CO2 Reduction in Water
As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re‐organized for online delivery, but are not copy‐edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors.
Non-sensitized Selective Photochemical Reduction of CO2 to CO under Visible Light with an Iron Molecular Catalyst
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Through-Space Charge Interaction Substituent Effects in Molecular Catalysis Leading to the Design of the Most Efficient Catalyst of CO2-to-CO Electrochemical Conversion - Journal of the American Chemical Society (ACS Publications)
The starting point of this study of through-space substituent effects on the catalysis of the electrochemical CO -to-CO conversion by iron(0) tetraphenylporphyrins is the linear free energy correlation between through-structure electronic effects and the iron(I/0) standard potential that we established separately.
Catalytic CO2-to-CO conversion in water by covalently functionalized carbon nanotubes with a molecular iron catalyst
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