detailed characterizations show a unique core/shell (metastable/stable phase) structure within the core of the metastable hcp phase RhMo alloy and the shell of the stable fcc phase RhMo alloy. Based on the theoretical simulations, the polymorphic ...
and reduced reaction energy barriers over CoN4arising from the synergetic interactions of CuN4. Moreover, the inter-connecting hierarchical pores can largely facilitate the mass transfer and promote the accessibility of hetero-
1TypesofCrystallineSolids•Atomicsolids–consistofatoms–Theatomsareheldtogetherbyweakdispersionforces(Examples:Ne,Ar,Kr,Xe,Rn)–Quitesoft;verylowTm;poorelectricalandthermalconductors(Tmincreaseswithincreasingmolarmass)•Molecularsolids–consistofmolecules–Non-polarmoleculesareheldtogetherbydispersionforces(...
promoted electrochemical stability, and significantly reduced energy barrier of potential determining step for acidic water oxidation. Consequently, the obtained COF-205-Ru displays a high mass activity with 2659.3 A g−1, which is 32-fold higher than the commercial RuO2, and retains long-t...
which are separated by the same mass of about 57.0215 u. This value exactly matches the mass of the NH2CH=C=O molecule, which was found to be the main product formed at 10 K. The intensities of the peaks in these series drop exponentially with increasing mass. A series is formed...
The surface chemistry of the different lyophilized nano-GOs was analysed by FTIR (spectra were recorded from KBr pellets (Aldrich, 99%, FT-IR grade) using a Mattson 7000 FT-IR spectrometer with resolution 8 and 256 interferograms) and XPS (VG Scientific ESCALAB 200 A; UK). The size of ...
reaching a mass activity as high as 3571 A gmetal−1and turnover frequency of 3348 O2h−1with a low overpotential of 267 mV at a current density of 10 mA cm−2. The catalyst shows no evident deactivation or decomposition after 30-hour operation in acidic environment.Operando...
With the TP further increasing, the mass fraction of Q4(Si) decreased. This may be due to the tendency of inter-pore connectivity with the increasing TP and the breaking of the Si-O bonds caused by the flow of the melt during the pore connectivity process [28,29]. As shown in Figure...
washed with distilled water. The metal concentrations in the supernatant liquid were determined by ICP-AES. By applying material balance, the mass of metals sorbed onto Amberlite XAD-16-HTT resin wascomputed. The sorption capacities of resin for Pd and Cd were 5.46 and 5.21 mg/g, respectively...