https://nova.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:35508 Wed 24 Jun 2020 14:44:42 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:42500 Wed 24 Aug 2022 09:11:19 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:49498 Wed 22 Nov 2023 15:05:51 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:37134 3+ doping in Co₃O₄ spinel remains poorly understood, mainly because the surface state of a catalyst is difficult to characterize. Herein, a bifunctional oxygen electrode composed of spinel Co₂FeO₄/(Co_0.72Fe_0.28)_Td(Co_1.28Fe_0.72)_OctO₄ nanoparticles grown on N‐doped carbon nanotubes (NCNTs) is designed, which exhibits superior performance to state‐of‐the‐art noble metal catalysts. Theoretical calculations and magnetic measurements reveal that the introduction of Fe³⁺ ions into the Co₃O₄ network causes delocalization of the Co 3d electrons and spin‐state transition. Fe³⁺ ions can effectively activate adjacent Co³⁺ ions under the action of both spin and charge effect, resulting in the enhanced intrinsic oxygen catalytic activity of the hybrid spinel Co₂FeO₄. This work provides not only a promising bifunctional electrode for zinc–air batteries, but also offers a new insight to understand the Co‐Fe spinel oxides for oxygen electrocatalysis.]]> Wed 19 Aug 2020 15:05:43 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:37126 Wed 19 Aug 2020 12:10:45 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:36616 Wed 17 Jun 2020 09:18:17 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:38143 Wed 15 Feb 2023 11:16:01 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:38917 2O₂ due to the isolation of the Au nanoparticles (AuNPs) from the PtNPs layer. Then the weak acidity of H₂O₂ can trigger the disassembly and reassembly of the AuNPs, resulting in the Janus distribution of large AuNPs aggregates. Such reconstruction of JMPA leads to the contact between PtNPs and AuNPs aggregates, thus changing the propulsion mechanism to self-electrophoresis. The asymmetric and aggregated AuNPs also enable the generation of a thermal gradient under laser irradiation, which propels the JMPA nanomotors by self-thermophoresis. Such multi-phoretic propulsion offers considerable promise for developing advanced nanomachines with a stimuli-responsive switch of propulsion modes in biomedical applications.]]> Wed 02 Mar 2022 15:43:14 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:36650 Tue 23 Jun 2020 14:49:43 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:45545 Tue 01 Nov 2022 10:07:02 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:36355 Thu 02 Apr 2020 10:39:32 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:13679 Sat 24 Mar 2018 10:41:08 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:5582 Sat 24 Mar 2018 07:49:26 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:23753 Sat 24 Mar 2018 07:11:10 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:51256 Mon 28 Aug 2023 12:41:39 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:36506 Mon 25 May 2020 12:08:47 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:44274 2Bi₂Nb₂TiO₁₂ nanosheets, which were prepared by a mineralizer‐assisted soft‐chemical method. Introduction of OVs on the surface of Sr₂Bi₂Nb₂TiO₁₂ extends photoresponse to cover the whole visible region and also tremendously promotes separation of photoinduced charge carriers. Adsorption and activation of CO₂ molecules on the surface of the catalyst are greatly enhanced. In the gas‐solid reaction system without co‐catalysts or sacrificial agents, OVs‐abundant Sr₂Bi₂Nb₂TiO₁₂ nanosheets show outstanding CO₂ photoreduction activity, producing CO with a rate of 17.11 μmol g⁻¹ h⁻¹, about 58 times higher than that of the bulk counterpart, surpassing most previously reported state‐of‐the‐art photocatalysts. Our study provides a three‐in‐one integrated solution to advance the performance of photocatalysts for solar‐energy conversion and generation of renewable energy.]]> Fri 23 Jun 2023 09:56:26 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:43387 Fri 16 Sep 2022 09:30:32 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:41828 Fri 12 Aug 2022 12:52:33 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:36381 2 , which was attributed to the high reactivity and stability of isolated single Co atoms. Our findings open up a new avenue to regulate the metal particle size and catalytic performance of MOF derivatives.]]> Fri 03 Apr 2020 16:59:31 AEDT ]]>