Au Exchange or Au Deposition: Dual Reaction Pathways in Au-CsPbBr Heterostructure Nanoparticles.

We have designed a facile synthetic strategy for the selective deposition of Au metal on all-inorganic CsPbBr perovskite nanocrystals that includes the addition of PbBr salt along with AuBr salt. PbBr is necessary because the addition of Au to solutions of CsPbBr nanocrystals otherwise results in the exchange of Au ions from solution with Pb cations within the nanocrystal lattice to produce CsAuAuBr nanocrystals with a tetragonal crystal structure and a band gap of about 1.6 eV, in addition to Au metal deposition.

Conservation program delivery in the southern U.S.: Preferences and interactions.

A lingering challenge in implementation of ecosystem-based planning is translating high-level conservation objectives to discrete management initiatives. Recent research underscores this, emphasizing the importance of the processes by which plans are developed and how programs to implement plans are delivered to stakeholders. This study contributes to the existing program design, research methodology, and conservation practice literature through an assessment of landowner and conservation practitioner relationships in the Gulf Coastal Plains and Ozarks (GCPO) region of the southern U.

Analysis of the production and transaction costs of forest carbon offset projects in the USA.

Forest carbon offset project implementation costs, comprised of both production and transaction costs, could present an important barrier to private landowner participation in carbon offset markets. These costs likewise represent a largely undocumented component of forest carbon offset potential. Using a custom spreadsheet model and accounting tool, this study examines the implementation costs of different forest offset project types operating in different forest types under different accounting and sampling methodologies.

The potential role for management of U.S. public lands in greenhouse gas mitigation and climate policy.

Management of forests, rangelands, and wetlands on public lands, including the restoration of degraded lands, has the potential to increase carbon sequestration or reduce greenhouse gas (GHG) emissions beyond what is occurring today. In this paper we discuss several policy options for increasing GHG mitigation on public lands. These range from an extension of current policy by generating supplemental mitigation on public lands in an effort to meet national emissions reduction goals, to full participation in an offsets market by allowing GHG mitigation on public lands to be sold as offsets either by the overseeing agency or by private contractors.