Developing bifunctional electrocatalysts with high activities and long durability for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is crucial toward the practical implementation of rechargeable metal-air batteries. Here, a 3D nanoporous graphene (np-graphene) doped with both N...
Rigaku) advance instrument using CuKα radiation (k = 1.5418 Å). The microstructure and element distribution mapping of the material were characterized by scanning electron microscope (SEM, JSM-7001F) and transmission electron microscopy (TEM, JEM2100F). Raman spectra were measured on a Ho...
a. metal b. nonmetal c. noble gas d. isotope e. ion Which of the following element is most likely to form an ion that will then form an ionic bond with an ion of a group 1A element? (a) Fr (b) Be (c) Br (d) Pt Which atom or ion has...
Due to their high anion exchange capacity, large specific surface area, tunable metal atoms and low cost, LDH are widely used in the photocatalytic area (Ou et al., 2020; Dinari and Neamati, 2020). LDH also exhibited excellent stability during the reaction process (Zhao et al., 2013) ...
What is the chemical symbol for the element named as gold? Write the name of each element and classify it as a metal, nonmetal, or metalloid. a. K b. Ba c. I d. O e. Sb Name the five elements of the periodic classification which comprise the carbon group. ...
Structure analyses reveal that they possess the same metal–nonmetal hybrid Zn 2 B(C 4 H 2 O 6 ) 2 {Zn 2 B} cluster building units (CBUs). These CBUs connect with tartaric acid into linear chains. The different orientation and arrangements of the chains lead to the formation of two ...
Tuning metal-nonmetal atomic pair distance to achieve demagnetization control in single-atom catalysts for seawater-based Zn-air batteriesDistance engineeringMagnetic momentClOxygen reduction reactionZn-air batteriesEasing magnetic moment of Fe-N-C by distance engineering of Fe-P atomic pair.The ...
Which among the following is present in Gun-metal? a) Cu b) Zn c) Sn d) All of these. Chemical Compound: ( C O 2 ) (C) (O) Answer and Explanation:1 The given chemical substance is Gunmetal. Some information about the given chemical substance is written be...
Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) has been established as a powerful technique for the determination of metal and nonmetal distributions within biological systems with high sensitivity. An imaging LA-ICP-MS technique for Fe, Cu, Zn, and Mn was developed to ...
{eq}A.\ CuO\\ B.\ SiC\\ C.\ C_{25}H_{25}\\ D.\ Zn {/eq} Intermolecular forces Intermolecular forces are weaker than the ionic bond, so molecular solids are softer and flexible. They have a low melting point and do nit conduct electricity. ...