Recently, hole-doped GeSe materials have been predicted to exhibit extraordinary thermoelectric performance owing largely to extremely low thermal conductivity. However, experimental research on the thermoelectric properties of GeSe has received less attention. Here, we have synthesized polycrystalline Na-doped GeSe compounds, characterized their crystal structure, and measured their thermoelec...

Submitted for the MAR11 Meeting of The American Physical Society Phase diagram of thermoelectric Bi2S3-Bi2Se3-Bi2Te3 system WEISHU LIU, QINYONG ZHANG, QIAN ZHANG, Boston College, BO YU, GANG CHEN, ZHIFENG REN, Boston College, BOSTON COLLEGE TEAM, MIT TEAM — It is well known that the highest ZT value, at an optimized carrier concentration, is mainly determined by a material parameter β = μ(m*/m0...

Rodents gnaw communications and power cables, resulting in service interruptions, fires, and other safety concerns. Commensal rodents such as the Norway rat (Rattus noruegicus) have been implicated in many of these situations. Two chemical repellents (capsicum oleoresin+apsaicin and denatonium benzoate) at 2.0% mass/mass concentrations in a polybutene carrier (Indopol@-control) were evaluated f...

Biogas upgrading via biomethanation of renewable H2 and the CO2 in biogas poses a potential key technology decarbonized energy system. This study uses methanogenic trickle-bed reactor for raw from an industrial anaerobic digester to natural gas-grade biomethane through ex situ biomethanation. The carrier material comprises critical design parameter reactors by supporting catalytic biofilm there...