Journal ArticleDOI
Free-Standing Single-Atom-Thick Iron Membranes Suspended in Graphene Pores
Jiong Zhao,Qingming Deng,Alicja Bachmatiuk,Alicja Bachmatiuk,Gorantla Sandeep,Alexey A. Popov,Juergen Eckert,Juergen Eckert,Mark H. Rümmeli +8 more
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TLDR
A free-standing crystalline single-atom-thick layer of iron (Fe) is shown using in situ low-voltage aberration-corrected transmission electron microscopy and supporting image simulations to pave the way for new 2D structures to be formed in graphene membranes.Abstract:
The excess of surface dangling bonds makes the formation of free-standing two-dimensional (2D) metals unstable and hence difficult to achieve. To date, only a few reports have demonstrated 2D metal formation over substrates. Here, we show a free-standing crystalline single-atom-thick layer of iron (Fe) using in situ low-voltage aberration-corrected transmission electron microscopy and supporting image simulations. First-principles calculations confirm enhanced magnetic properties for single-atom-thick 2D Fe membranes. This work could pave the way for new 2D structures to be formed in graphene membranes.read more
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Journal ArticleDOI
Recent Advances in Two-Dimensional Materials beyond Graphene
Ganesh R. Bhimanapati,Zhong Lin,Vincent Meunier,Vincent Meunier,Yeonwoong Jung,Jangho J Cha,Saptarshi Das,Di Xiao,Young-Woo Son,Michael S. Strano,Valentino R. Cooper,Liangbo Liang,Liangbo Liang,Steven G. Louie,Steven G. Louie,Emilie Ringe,Wenchao Zhou,Steve S. Kim,Rajesh R. Naik,Bobby G. Sumpter,Humberto Terrones,Humberto Terrones,Fengnian Xia,Yeliang Wang,Jian Zhu,Deji Akinwande,Nasim Alem,Jon A. Schuller,Raymond E. Schaak,Mauricio Terrones,Joshua A. Robinson +30 more
TL;DR: Insight is provided into the theoretical modeling and understanding of the van der Waals forces that hold together the 2D layers in bulk solids, as well as their excitonic properties and growth morphologies.
Journal ArticleDOI
Catalysis with two-dimensional materials and their heterostructures
TL;DR: Recent advances in the use of graphene and other 2D materials in catalytic applications are reviewed, focusing in particular on the catalytic activity of heterogeneous systems such as van der Waals heterostructures (stacks of several 2D crystals).
Journal ArticleDOI
Applications of 2D MXenes in energy conversion and storage systems
Jinbo Pang,Rafael G. Mendes,Rafael G. Mendes,Alicja Bachmatiuk,Alicja Bachmatiuk,Alicja Bachmatiuk,Liang Zhao,Huy Q. Ta,Thomas Gemming,Hong Liu,Hong Liu,Zhongfan Liu,Zhongfan Liu,Mark H. Rümmeli,Mark H. Rümmeli,Mark H. Rümmeli +15 more
TL;DR: The potential of MXenes for the photocatalytic degradation of organic pollutants in water, such as dye waste, is addressed, along with their promise as catalysts for ammonium synthesis from nitrogen.
Journal ArticleDOI
A single iron site confined in a graphene matrix for the catalytic oxidation of benzene at room temperature.
Dehui Deng,Xiaoqi Chen,Liang Yu,Xing Wu,Qingfei Liu,Yun Liu,Huaixin Yang,Huanfang Tian,Yongfeng Hu,Peipei Du,Rui Si,Junhu Wang,Xiaoju Cui,Haobo Li,Jianping Xiao,Tao Xu,Jiao Deng,Fan Yang,Paul N. Duchesne,Peng Zhang,Jigang Zhou,Litao Sun,Jianqi Li,Xiulian Pan,Xinhe Bao +24 more
TL;DR: Experimental measurements and density functional theory calculations indicate that the formation of the Fe═O intermediate structure is a key step to promoting the conversion of benzene to phenol, paving the way toward highly efficient nonprecious catalysts for low-temperature oxidation reactions in heterogeneous catalysis and electrocatalysis.
Journal ArticleDOI
Two-Dimensional Metal Nanomaterials: Synthesis, Properties, and Applications
TL;DR: The general synthetic strategies applied to 2D metal nanomaterials are briefly introduced, followed by describing in detail the various synthetic methods classified in two categories, i.e. bottom-up methods and top-down methods.
References
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Generalized Gradient Approximation Made Simple
TL;DR: A simple derivation of a simple GGA is presented, in which all parameters (other than those in LSD) are fundamental constants, and only general features of the detailed construction underlying the Perdew-Wang 1991 (PW91) GGA are invoked.
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