An interfacial engineering strategy of electrocatalyst boosts ammonia electrosynthesis

<正>Ammonia(NH_3)is not only an essential chemical feedstock for the manufacture of nitrogen-rich fertilizers but also a promising carbon-free energy carrier for storing H_2due to its high content of hydrogen(17.6%by mass).At present,industrial NH_3is still dominantly produced by the traditional Haber-Bosch process,which reduces nitrogen(N_2)to NH_3(N_2+3H_22NH_3)at high temperatures(350–550°C)and     

Fault estimation for rotary steerable drilling tool systems with strong vibrations and unknown terms

Nonlinear Dynamics - In this paper, the problem of gyro fault estimation is studied for the dynamic point-the-bit rotary steerable drilling tool system (DPRSDTS), and it is essentially the fault...     

Biomass-derived porous carbon electrode modified with nanostructured nickel-cobalt hydroxide for high-performance supercapacitors

Journal of Solid State Electrochemistry - Apple-derived porous carbon (denoted as APC) is successfully prepared and analyzed as a potential carbon material by hydrothermal carbonization and...     

Preparation and SPECT imaging of the novel Anxa 1-targeted probe 99mTc-p-SCN-Bn-DTPA-GGGRDN-IF7

Annexin 1 (Anxa1) is a highly specific surface marker of tumor vasculature in several solid tumors. The IF7 peptide was modified with a hydrophic linkers,GGGRDN, and introduced into a new bifunctional chelating agent p-SCN-Bn-DTPA. The resulting peptides (p-SCN-Bn-DTPA-GGGRDN-IF7) was successfuly labeled with ^99mTc. The targeting characteristics to Anxa1 of the radiolabeled peptide were evaluated by in vitro and in vivo study is on U87 tumor models. SPECT imaging revealed that the U87 tumors were clearly visualized (3.64 ± 0.44%ID/g at 2 h p.i.). ^99mTc-p-SCN-Bn-DTPA-GGGRDN-IF7 (Tc-RIF7) might be a potential target probe for detecting Anxa1 levels in cancers due to the favorable characterizations such as convenient synthesis, specific Anxa1 targeting and moderate tumor uptakes.