Managing the Intranet: trying a new tool

A case study is described of how the Open University Library is developing a pilot departmental Intranet with the open source package, Zope and the Content Management Framework toolkit. The approach is to manage and share content held in a variety of formats, develop workflow for creating and approving new content before it is published to the site, separate content from presentation in order to support easy maintenance and consistency, and locate information through metadata and full text retrieval. Designing the Intranet involved content mapping and identifying library staff’s working needs before developing the structure and site framework. The Zope CMF has proved to be a highly flexible set of tools for creating a knowledge sharing Intranet, but the drawbacks are lack of documentation and training in the UK

Nanosheets Co₃O₄ Interleaved with Graphene for Highly Efficient Oxygen Reduction

Efficient yet inexpensive electrocatalysts for oxygen reduction reaction (ORR) are an essential component of renewable energy devices, such as fuel cells and metal-air batteries. We herein interleaved novel Co₃O₄ nanosheets with graphene to develop a first ever sheet-on-sheet heterostructured electrocatalyst for ORR, whose electrocatalytic activity outperformed the state-of-the-art commercial Pt/C with exceptional durability in alkaline solution. The composite demonstrates the highest activity of all the nonprecious metal electrocatalysts, such as those derived from Co₃O₄ nanoparticle/nitrogen-doped graphene hybrids and carbon nanotube/nanoparticle composites. Density functional theory (DFT) calculations indicated that the outstanding performance originated from the significant charge transfer from graphene to Co₃O₄ nanosheets promoting the electron transport through the whole structure. Theoretical calculations revealed that the enhanced stability can be ascribed to the strong interaction generated between both types of sheets