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Full-Text Articles in Engineering
Wastewater Remediation Technologies Using Macroscopic Graphene-Based Materials: A Perspective, Rajan Arjan Kalyan Hirani, Abdul Hannan Asif, Nasir Rafique, Lei Shi, Shu Zhang, Hong Wu, Hongqi Sun
Wastewater Remediation Technologies Using Macroscopic Graphene-Based Materials: A Perspective, Rajan Arjan Kalyan Hirani, Abdul Hannan Asif, Nasir Rafique, Lei Shi, Shu Zhang, Hong Wu, Hongqi Sun
Research outputs 2014 to 2021
Three-dimensional (3D) graphene-based macrostructures are being developed to combat the issues associated with two-dimensional (2D) graphene materials in practical applications. The 3D macrostructures (3DMs), for example, membranes, fibres, sponges, beads, and mats, can be formed by the self-assembly of 2D graphene-based precursors with exceptional surface area and unique chemistry. With rational design, the 3D macrostructures can then possess outstanding properties and exclusive structures. Thanks to various advantages, these macrostructures are competing in a variety of applications with promising performances unlike the traditional activated carbons, biochars and hydrochars, which have less flexibilities for modifications towards versatile applications. However, despite having such …
Experimental Validation Of Bulk-Graphene As A Thermoelectric Generator, Muhammad Uzair Khan, Amir Naveed, Syed Ehtisham Gillani, Dawar Awan, Muhammad Arif, Shaista Afridi, Muhammad Hamyun, Muhammad Asif, Saadia Tabassum, Muhammad Sadiq, Muhammad Lais, Muhammad Aslam, Saeed Ullah Jan, Zeeshan Ahad
Experimental Validation Of Bulk-Graphene As A Thermoelectric Generator, Muhammad Uzair Khan, Amir Naveed, Syed Ehtisham Gillani, Dawar Awan, Muhammad Arif, Shaista Afridi, Muhammad Hamyun, Muhammad Asif, Saadia Tabassum, Muhammad Sadiq, Muhammad Lais, Muhammad Aslam, Saeed Ullah Jan, Zeeshan Ahad
Research outputs 2014 to 2021
Quest for alternate energy sources is the core of most of the research activities these days. No matter how small or large amount of energy can be produced by utilizing the non-conventional techniques and sources, every bit of innovation can reshape the future of energy. In this work, experimental analysis of the thermoelectric (TE) properties of bulk-graphene in the temperature range of (303 to 363) K is presented. Graphene powder was pressed to form a pellet which was used to fabricate the TE device. The effects of temperature on the Seebeck coefficient, electrical and thermal conductivities, and the dimensionless figure …
Dealloyed Porous Gold Anchored By: In Situ Generated Graphene Sheets As High Activity Catalyst For Methanol Electro-Oxidation Reaction, Hui Xu, Shuai Liu, Xiaoliang Pu, Kechang Shen, Laichang Zhang, Xiaoguang Wang, Jingyu Qin, Weimin Wang
Dealloyed Porous Gold Anchored By: In Situ Generated Graphene Sheets As High Activity Catalyst For Methanol Electro-Oxidation Reaction, Hui Xu, Shuai Liu, Xiaoliang Pu, Kechang Shen, Laichang Zhang, Xiaoguang Wang, Jingyu Qin, Weimin Wang
Research outputs 2014 to 2021
A novel one-step method to prepare the nanocomposites of reduced graphene oxide (RGO)/nanoporous gold (NPG) is realized by chemically dealloying an Al2Au precursor. The RGO nanosheets anchored on the surface of NPG have a cicada wing like shape and act as both conductive agent and buffer layer to improve the catalytic ability of NPG for methanol electro-oxidation reaction (MOR). This improvement can also be ascribed to the microstructure change of NPG in dealloying with RGO. This work inspires a facile and economic method to prepare the NPG based catalyst for MOR.
2d Transition Metal Dichalcogenides And Graphene-Based Ternary Composites For Photocatalytic Hydrogen Evolution And Pollutants Degradation, Ying Chen, Hongqi Sun, Wenchao Peng
2d Transition Metal Dichalcogenides And Graphene-Based Ternary Composites For Photocatalytic Hydrogen Evolution And Pollutants Degradation, Ying Chen, Hongqi Sun, Wenchao Peng
Research outputs 2014 to 2021
Photocatalysis have attracted great attention due to their useful applications for sustainable hydrogen evolution and pollutants degradation. Transition metal dichalcogenides (TMDs) such as MoS2 and WS2 have exhibited great potential as cocatalysts to increase the photo-activity of some semiconductors. By combination with graphene (GR), enhanced cocatalysts of TMD/GR hybrids could be synthesized. GR here can act as a conductive electron channel for the transport of the photogenerated electrons, while the TMDs nanosheets in the hybrids can collect electrons and act as active sites for photocatalytic reactions. This mini review will focus on the application of TMD/GR hybrids as …