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2020

University of Wollongong

Co2

Articles 1 - 4 of 4

Full-Text Articles in Physical Sciences and Mathematics

A Self‐Assembled Co2 Reduction Electrocatalyst: Posy‐Bouquet‐Shaped Gold‐Polyaniline Core‐Shell Nanocomposite, Amruthalakshmi Vijayakumar, Yong Zhao, Jinshuo Zou, Kezhong Wang, Chong Yong Lee, Douglas Macfarlane, Caiyun Wang, Gordon G. Wallace Jan 2020

A Self‐Assembled Co2 Reduction Electrocatalyst: Posy‐Bouquet‐Shaped Gold‐Polyaniline Core‐Shell Nanocomposite, Amruthalakshmi Vijayakumar, Yong Zhao, Jinshuo Zou, Kezhong Wang, Chong Yong Lee, Douglas Macfarlane, Caiyun Wang, Gordon G. Wallace

Australian Institute for Innovative Materials - Papers

© 2020 Wiley-VCH GmbH Here it was demonstrated that the decoration of gold (Au) with polyaniline is an effective approach in increasing its electrocatalytic reduction of CO2 to CO. The core-shell-structured gold-polyaniline (Au−PANI) nanocomposite delivered a CO2-to-CO conversion efficiency of 85 % with a high current density of 11.6 mA cm−2. The polyaniline shell facilitated CO2 adsorption, and the subsequent formation of reaction intermediates on the gold core contributed to the high efficiency observed.


Fabrication Of Heterostructured Uio-66-Nh2 /Cnts With Enhanced Activity And Selectivity Over Photocatalytic Co2 Reduction, Xiaojun Wang, Guorui Yang, Guodong Chai, Muhammad Nasir, Silan Wang, Xing Zheng, Caiyun Wang, Wei Yan Jan 2020

Fabrication Of Heterostructured Uio-66-Nh2 /Cnts With Enhanced Activity And Selectivity Over Photocatalytic Co2 Reduction, Xiaojun Wang, Guorui Yang, Guodong Chai, Muhammad Nasir, Silan Wang, Xing Zheng, Caiyun Wang, Wei Yan

Australian Institute for Innovative Materials - Papers

© 2020 Hydrogen Energy Publications LLC Developing photocatalysts with superior efficiency and selectivity is an important issue for photocatalytic converting CO2. Hierarchically heterostructured one-dimensional nanomaterials represent a kind of promising catalysts for photocatalytic CO2 reduction on account of the high surface area and synthetic effect between different components. Herein, we synthesized UIO-66-NH2/carbon nanotubes (CNTs) heterostructures via a hydrothermal method, and investigated their photocatalytic performance. The element mapping, X-ray diffraction, and X-ray photoelectron spectroscopy collectively confirmed that the UIO-66-NH2 was successfully loaded on the surface of the CNTs. The specific surface area of the UIO-66-NH2/CNTs is 1.5 times higher than that …


Coupling N2 And Co2 In H2o To Synthesize Urea Under Ambient Conditions, Chen Chen, Xiaorong Zhu, Xiaojian Wen, Yangyang Zhou, Ling Zhou, Hao Li, Li Tao, Qiling Li, Shiqian Du, Tingting Liu, Dafeng Yan, Chao Xie, Yuqin Zou, Yanyong Wang, Ru Chen, Jia Huo, Yafei Liu, Jun Cheng, Hui Su, Xu Zhao, Weiren Cheng, Qinghua Liu, Hongzhen Lin, Jun Luo, Jun Chen, Mingdong Dong, Kai Cheng, Conggang Li, Shuangyin Wang Jan 2020

Coupling N2 And Co2 In H2o To Synthesize Urea Under Ambient Conditions, Chen Chen, Xiaorong Zhu, Xiaojian Wen, Yangyang Zhou, Ling Zhou, Hao Li, Li Tao, Qiling Li, Shiqian Du, Tingting Liu, Dafeng Yan, Chao Xie, Yuqin Zou, Yanyong Wang, Ru Chen, Jia Huo, Yafei Liu, Jun Cheng, Hui Su, Xu Zhao, Weiren Cheng, Qinghua Liu, Hongzhen Lin, Jun Luo, Jun Chen, Mingdong Dong, Kai Cheng, Conggang Li, Shuangyin Wang

Australian Institute for Innovative Materials - Papers

© 2020, The Author(s), under exclusive licence to Springer Nature Limited. The use of nitrogen fertilizers has been estimated to have supported 27% of the world’s population over the past century. Urea (CO(NH2)2) is conventionally synthesized through two consecutive industrial processes, N2 + H2 → NH3 followed by NH3 + CO2 → urea. Both reactions operate under harsh conditions and consume more than 2% of the world’s energy. Urea synthesis consumes approximately 80% of the NH3 produced globally. Here we directly coupled N2 and CO2 in H2O to produce urea under ambient conditions. The process was carried out using an …


Supercritical Co2-Constructed Intralayer [Bi2o2]2+Structural Distortion For Enhanced Co2 Electroreduction, Yannan Zhou, Pengfei Yan, Jun Jia, Suoying Zhang, Xiaoli Zheng, Li Zhang, Bin Zhang, Jun Chen, Weichang Hao, Gongji Chen, Qun Xu, Buxing Han Jan 2020

Supercritical Co2-Constructed Intralayer [Bi2o2]2+Structural Distortion For Enhanced Co2 Electroreduction, Yannan Zhou, Pengfei Yan, Jun Jia, Suoying Zhang, Xiaoli Zheng, Li Zhang, Bin Zhang, Jun Chen, Weichang Hao, Gongji Chen, Qun Xu, Buxing Han

Australian Institute for Innovative Materials - Papers

© 2020 The Royal Society of Chemistry. Inducing crystal distortion in two-dimensional (2D) materials to increase the number of active sites is of great significance in improving the intrinsic activity of electrocatalysts for the CO2 reduction reaction (CO2RR). Developing 2D materials as thin as possible is required for this goal. Herein, taking layered BiOCl as a prototype model, we achieved the intralayer [Bi2O2]2+ structural distortion by using supercritical CO2 as a solvent to reduce the number of interlayer chlorine atoms involved in the reaction. Contrary to expectations, further CO2RR experiments indicate that thick nanoplates exhibit a high faradaic efficiency of …