96 research outputs found

    The Use of Management Control Systems to Formulate and Implement CSR Strategy: A Levers of Control Perspective

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    Little is known about the role of management control systems (MCS) in managing the strategic processes that underpin Corporate Social Responsibility (CSR). To enhance our understanding of this phenomenon, this study employs Simons’ (1995) levers of control framework to explore how organizations leverage MCS in different ways in order to drive strategic renewal and trigger organizational change while simultaneously supporting society’s broader sustainability agenda. Drawing on data gathered from France’s largest listed companies – members of the CAC 40 – we provide insights into the structures and processes that companies employ to design, implement and monitor their CSR strategy. In doing so, we provide evidence of the way that organisations seek to attain their CSR objectives, and of the relationship between the management of CSR and other business processes. Of particular interest is the role of the levers of control in enabling managers to identify and manage threats and opportunities associated with CSR strategy, thus forming risk management processes that support organisations in their attainment of strategic objectives. Furthermore, the study provides evidence suggesting the use of MCS has the potential to contribute to society’s broader sustainability agenda through processes that enable innovation, communication, reporting, and the identification of threats and opportunities

    3-D Tracking and Visualization of Hundreds of Pt-Co Fuel Cell Nanocatalysts During Electrochemical Aging

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    We present an electron tomography method that allows for the identification of hundreds of electrocatalyst nanoparticles with one-to-one correspondence before and after electrochemical aging. This method allows us to track, in three-dimensions (3-D), the trajectories and morphologies of each Pt-Co nanocatalyst on a fuel cell carbon support. The use of atomic-scale electron energy loss spectroscopic imaging enables the correlation of performance degradation of the catalyst with changes in particle/inter-particle morphologies, particle-support interactions and the near-surface chemical composition. We found that, aging of the catalysts under normal fuel cell operating conditions (potential scans from +0.6 V to +1.0 V for 30,000 cycles) gives rise to coarsening of the nanoparticles, mainly through coalescence, which in turn leads to the loss of performance. The observed coalescence events were found to be the result of nanoparticle migration on the carbon support during potential cycling. This method provides detailed insights into how nanocatalyst degradation occurs in proton exchange membrane fuel cells (PEMFCs), and suggests that minimization of particle movement can potentially slow down the coarsening of the particles, and the corresponding performance degradation.Comment: Nano Letters, accepte

    Epitaxy of hexagonal ABO3_3 quantum materials

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    Hexagonal ABABO3_3 oxides (AA, BB = cation) are a rich materials class for realizing novel quantum phenomena. Their hexagonal symmetry, oxygen trigonal bipyramid coordination and quasi-two dimensional layering give rise to properties distinct from those of the cubic ABABO3_3 perovskites. As bulk materials, most of the focus in this materials class has been on the rare earth manganites, RRMnO3_3 (RR = rare earth); these materials display coupled ferroelectricity and antiferromagnetic order. In this review, we focus on the thin film manifestations of the hexagonal ABABO3_3 oxides. We cover the stability of the hexagonal oxides and substrates which can be used to template the hexagonal structure. We show how the thin film geometry not only allows for further tuning of the bulk-stable manganites but also the realization of metastable hexagonal oxides such as the RRFeO3_3 that combine ferroelectricity with weak ferromagnetic order. The thin film geometry is a promising platform to stabilize additional metastable hexagonal oxides to search for predicted high-temperature superconductivity and topological phases in this materials class.Comment: The following article has been accepted by Applied Physics Review
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