Nov. 21, 2019: Our designed cover picture was selected for a frontispiece in Advanced Science!
In article number 1902170, Hong Wang, Geoffrey A. Ozin, and co‐workers present a hetero‐nanostructure, oxygen vacancy, electronic band alignment and carrier lifetime engineering strategy of In2O3−x(OH)y@Nb2O5, enabling the solar‐powered, reverse water gas shift reaction to operate at a 44‐fold higher conversion rate than pristine In2O3−x(OH)y, with high selectivity and long‐term operational stability, an advance that augers well for the metal oxide hetero‐nanostructure engineering approach to the industrialization of gas‐phase CO2 photocatalysis [Link]
Sep. 30th 2019: Congratulations to Zhiping, Chris and co-workers on your paper was accepted on Chemical Communications!
In this work, we report the synthesis of flexible,
highly conductive and robust N, S co-doped graphitic hollow
carbon fibers (CFs) by vacuum carbonization of “human
hairs”. By engineering those cost-effective CFs with polydiacetylene (PDA), a
new family of ultrasensitive, reversible electrochromatic fibers that display
switchable color transition (blue⇋red) upon current and UV-light stimuli was
Sep. 17th 2019: Congratulations, our joint paper with Geoff was accepted on Advanced Science!
Engineering of a Reverse Water Gas Shift Photocatalyst, which enables the gas-phase,
photocatalytic, heterogeneous hydrogenation of CO2 to CO with high
performance metrics. The catalyst is
comprised of indium oxide nanocrystals, In2O3-x(OH)y,
nucleated and grown on the surface of niobium pentoxide (Nb2O5)
Aug. 24th 2019: We designed the Cover picture of our Hydrazine fuel cell paper on Angewandte Chemie!
A hierarchically structured porous carbon membrane containing atomically dispersed semi‐metallic selenium atoms was prepared. In their Research Article (DOI: 10.1002/anie.201907752), W. Zhou, H. Wang, and co‐workers show that the membranes can be utilized as electrodes for the hydrazine oxidation reaction in practical hydrazine fuel cells [Link].
July 14th 2019: A warm welcome to our summer student, Jiani Jin from College of Chemistry, Lanzhou University!
July 5th 2019: Congratulations, Tongzhou and coworkers on your paper was accepted on Angew. Chem. Int. Ed.！
We report a class of
electrochemically active, hierarchically porous carbon membranes containing atomically
dispersed semi-metallic Se (denoted SeNCM). It represents the archetype of single semi-metallic atom heterogenous
catalyst in which the isolated Se atoms were stabilized by carbon atoms in the
form of a hexatomic ring structure, locating at the edges of graphitic domains
in SeNCM. The positively charged Se,
enlarged graphitic layers, robust electrochemical nature of SeNCM endow them
with excellent catalytic activity that is even superior to commercial Pt/C catalyst, and long-term operational stability towards hydrazine
oxidation reaction in practical hydrazine fuel cell.
Jan. 10th 2019: Congratulations, Zhiping and coworkers on your paper was accepted on Polymer International!
We report the fabrication of CPMs exclusively from poly(ionic liquid)s, and their pore size and wettability were precisely tailored by rational choice of anions. Specifically, a stepwise subtle increase in hydrophobicity of the anions by extending the length of fluorinated alkyl substituents, i.e. from Tf2N to Pf2N and Hf2N, decreased the average pore size gradually from 1546 to 157 and 77 nm, respectively. Meanwhile, the corresponding water contact angles increased from 90° to 102° and 120°. The sensitive control over the porous architectures and surface wettability of CPMs by variation of anion hydrophobicity provides solid proof of the impact of PIL anions on CPM structures.
Video: A new type of nitrogen-doped porous carbon membrane that is fire-retardant!
Nov. 3th, 2018: Congratulations, Chris and coworkers on your paper was accepted on ACS Nano!
We introduce a straightforward, scalable and technologically relevant strategy to manufacture charged porous polymer membranes (CPMs) in a controllable manner. The pore sizes and porous architectures of CPMs are well-controlled by rational choice of anions in PILs. Continuously, heteroatom-doped hierarchically porous carbon membrane (HCMs) can be readily fabricated via morphology-maintaining carbonization of as-prepared CPMs. These HCMs being as photothermal membranes exhibited excellent performance for solar seawater desalination, representing a promising strategy to construct advanced functional nanomaterials for portable water production technologies.
Aug. 1th, 2018: We made the Cover Picture of our N2 fixation paper on Angew. Chem. Int. Ed !
Hierarchically porous carbon membranes have been successfully developed by H. Wang, J. Yuan, G. A. Ozin et al.; the membranes can be utilized as high-performance gas-diffusion electrodes to electrochemically convert N2 into NH3 at room temperature and atmospheric pressure in an acidic aqueous solution [Link].
June 19th, 2018: Congratulations on our joint publication with Jiayin and Geoff was published on Angew. Chem. Int. Ed.！
In this paper, hierarchically structured nitrogen-doped nanoporous carbon membranes (NCMs) are reported to electrochemically convert N2 into NH3 at room temperature and atmospheric pressure in an acidic aqueous solution. The Faradaic efficiency and rate of NH3 production using the metal-free NCM electrode in 0.1 M HCl solution are as high as 5.2% and 0.08 g m-2 h-1, respectively. Upon functionalization of the NCM electrode with Au nanoparticles, the efficiency and rate achieve a remarkable 22% and 0.36 g m-2 h-1, respectively. These performance metrics are unprecedented for the electrocatalytic production of NH3 from N2 under ambient conditions.
June 15th, 2018: 我们课题组网站正式上线！
Our group is an interdisciplinary research team devoted to developing scalable functional polymers and carbon materials towards addressing both fundamentals in polymer science&carbon research and forefront challenges in materials science and engineering.