Recent advances in the development and applications of biomass-derived carbons with uniform porosity

2020 ◽  
Vol 8 (36) ◽  
pp. 18464-18491
Author(s):  
Barbara Szczęśniak ◽  
Jenjira Phuriragpitikhon ◽  
Jerzy Choma ◽  
Mietek Jaroniec

This review presents advances, challenges and prospects in the area of biomass-derived carbons with ordered porosity addressed for scientists and engineers interested in materials science, chemical engineering, environmental science, and more.

2019 ◽  
Vol 35 (8) ◽  
pp. 917-927 ◽  
Author(s):  
Hao Jiang ◽  
Yongsheng Han ◽  
Qiang Zhang ◽  
Jiexin Wang ◽  
Yiqun Fan ◽  
...  

Abstract Materials-oriented chemical engineering involves the intersection of materials science and chemical engineering. Development of materials-oriented chemical engineering not only contributes to material research and industrialization techniques but also opens new avenues for chemical engineering science. This review details the major achievements of materials-oriented chemical engineering fields in China, including preparation strategies for advanced materials based on the principles of chemical engineering as well as innovative separation and reaction techniques determined by new materials. Representative industrial applications are also illustrated, highlighting recent advances in the field of materials-oriented chemical engineering technologies. In addition, we also look at the ongoing trends in materials-oriented chemical engineering in China.


Author(s):  
B.N. Chigarev

This study aims to reveal and analyze the landscape of China’s scientific publications in 2018–2020 on the subject “Energy Engineering and Power Technology” using bibliometric data from the Lens platform. Bibliometric data of 26,623 scholarly works that satisfy the query: “Filters: Year Published = (2018–); Publication Type = (journal article); Subject = (Energy Engineering and Power Technology); Institution Country/Region = (China)” were used to analyze their main topics disclosed by Fields of Study and Subject; the leading contributors to these R&D activities were also detected. Chinese Academy of Sciences, China University of Petroleum, Tsinghua University, Xi’an Jiaotong University, China University of Mining and Technology are the leading institutions in the subject. Most research works were funded by National Natural Science Foundation of China. China carries out its research not only in conjunction with the leading economies: United States, United Kingdom, Australia and Canada, but also with the developing countries: Pakistan, Iran, Saudi Arabia and Viet Nam. Materials science, Chemical engineering, Computer science, Chemistry, Catalysis, Environmental science are the top Fields of Study. Analysis of co-occurrence of Fields of Study allowed to identify 5 thematic clusters: 1. Thermal efficiency and environmental science; 2. Materials science for energy storage and hydrogen production; 3. Catalysis and pyrolysis for better fossil fuels; 4. Computer science and control theory for renewable energy; 5. Petroleum engineering for new fossil fuel resources and composite materials. The results of the work can serve as a reference material for scientists, developers and investors, so that they can understand the research landscape of the “Energy Engineering and Power Technology” subject.


Cellulose ◽  
2021 ◽  
Author(s):  
Alejandro Barrero-Fernández ◽  
Roberto Aguado ◽  
Ana Moral ◽  
Celeste Brindley ◽  
Menta Ballesteros

AbstractNot surprisingly, cellulose-based agents for wastewater treatments, and more precisely for coagulation-flocculation processes, raise growing interest, boosted not only by the high availability, functionality, renewability, and biodegradability of cellulose, but also by the outstanding performance of their derivatives. The analysis of 460 publications including review papers, research articles and book chapters, among others, reveals a multidisciplinary approach, where the fields Materials Science, Chemistry, Chemical Engineering and Environmental Science play a major role. In terms of institutions, some of the most relevant contributors are the Wuhan University, Zhejiang Sci-Tech University, Universidad Complutense de Madrid, to name a few. The most relevant journals were found to be Carbohydrate Polymers, International Journal of Applied Polymer Science and Cellulose. An analysis of 332 keywords allowed us to classify works into three major clusters (besides two minor ones): one mostly defined by cellulose and coagulation; a second one championed by flocculation and cellulose derivatives; and a third one including wastewater treatment and polysaccharides. While the evolution of the scientific production leaves little doubt about it, as depicted in this bibliometric study, this is the first work providing an in-depth assessment and classification of the literature on cellulose for particle aggregation purposes.


2008 ◽  
Vol 607 ◽  
pp. 1-8 ◽  
Author(s):  
Yan Ching Jean ◽  
Hong Min Chen ◽  
L. James Lee ◽  
Jin Tao Yang ◽  
Xiao Hong Gu ◽  
...  

Positron and Positronium chemistry has been pursued and advanced by many scientists and engineers in both fundamental understanding of Positronium atom and its applications to chemical and polymeric systems during the last decade. This paper presents our recent results from collaborative investigations of positron annihilation in polymeric membranes. Future perspectives of applying Positronium chemistry to membrane science and technology and other related disciplines of nanotechnology, chemical engineering, materials science, energy research, molecules with positrons, biological and medical sciences appear to be promising.


Author(s):  
George K. Schweitzer ◽  
Lester L. Pesterfield

Most fields of science, applied science, engineering, and technology deal with solutions in water. This volume is a comprehensive treatment of the aqueous solution chemistry of all the elements. The information on each element is centered around an E-pH diagram which is a novel aid to understanding. The contents are especially pertinent to agriculture, analytical chemistry, biochemistry, biology, biomedical science and engineering, chemical engineering, geochemistry, inorganic chemistry, environmental science and engineering, food science, materials science, mining engineering, metallurgy, nuclear science and engineering, nutrition, plant science, safety, and toxicology.


2001 ◽  
Vol 684 ◽  
Author(s):  
Jane P. Chang

Recognizing that the traditional engineering education training is often inadequate in preparing the students for the challanges presented by this industry's dynamic environment and insufficient to meet the empoyer's criteria in hiring new engineers, a new curriculum on Semiconductor Manufacturing is instituted in the Chemical Engineering Department at UCLA to train the students in various scientific and technologica areas that are pertinenet to the microelectronics industries. This paper describes this new mutidisciplinary curriculum that provides knowledge and skills in semiconductor manufacturing through a series ofcourses that emphasize on the application of fundamenta engineeering disciplines in solid-state physics, materials science of semiconductors, and chemical processing. The curriculum comprises three major components:(1)a comprehensive course curriculum in semiconductor manufacturing; (2) a laboratory for hands-on training in semiconductor device fabrication; (3) design of experiments. The capstone laboratory course is designed to strengthen students’ training in “unit operatins” used in semicounductor manufacturing and allow them to practice engineering principles using the state-of-the-art experimental setup. It comprises the most comprehensive training(seven photolithographic steps and numero0us chemical processes)in fabricating and testing complementary metal-oxide-semiconductor (CMOS) devices. This curriculum is recentyaccredited by the Accreditation Board for Engineering and Technology(ABET).


2020 ◽  
pp. 1-7
Author(s):  
Sumit Kumar Gupta ◽  

Nanotechnology is new frontiers of this century. The world is facing great challenges in meeting rising demands for basic commodities(e.g., food, water and energy), finished goods (e.g., cellphones, cars and airplanes) and services (e.g., shelter, healthcare and employment) while reducing and minimizing the impact of human activities on Earth’s global environment and climate. Nanotechnology has emerged as a versatile platform that could provide efficient, cost-effective and environmentally acceptable solutions to the global sustainability challenges facing society. In recent years there has been a rapid increase in nanotechnology in the fields of medicine and more specifically in targeted drug delivery. Opportunities of utilizing nanotechnology to address global challenges in (1) water purification, (2) clean energy technologies, (3) greenhouse gases management, (4) materials supply and utilization, and (5) green manufacturing and hemistry. Smart delivery of nutrients, bio-separation of proteins, rapid sampling of biological and chemical contaminants, and nano encapsulation of nutraceuticals are some of the emerging topics of nanotechnology for food and agriculture. Nanotechnology is helping to considerably improve, even revolutionize, many technology and Industry sectors: information technology, energy, environmental science, medicine, homeland security, food safety, and transportation, among many others. Today’s nanotechnology harnesses current progress in chemistry, physics, materials science, and biotechnology to create novel materials that have unique properties because their structures are determined on the nanometer scale. This paper summarizes the various applications of nanotechnology in recent decades Nanotechnology is one of the leading scientific fields today since it combines knowledge from the fields of Physics, Chemistry, Biology, Medicine, Informatics, and Engineering. It is an emerging technological field with great potential to lead in great breakthroughs that can be applied in real life. Novel Nano and biomaterials, and Nano devices are fabricated and controlled by nanotechnology tools and techniques, which investigate and tune the properties, responses, and functions of living and non-living matter, at sizes below100 nm. The application and use of Nano materials in electronic and mechanical devices, in optical and magnetic components, quantum computing, tissue engineering, and other biotechnologies, with smallest features, widths well below 100 nm, are the economically most important parts of the nanotechnology nowadays and presumably in the near future. The number of Nano products is rapidly growing since more and more Nano engineered materials are reaching the global market the continuous revolution in nanotechnology will result in the fabrication of nanomaterial with properties and functionalities which are going to have positive changes in the lives of our citizens, be it in health, environment, electronics or any other field. In the energy generation challenge where the conventional fuel resources cannot remain the dominant energy source, taking into account the increasing consumption demand and the CO2 .Emissions alternative renewable energy sources based on new technologies have to be promoted. Innovative solar cell technologies that utilize nanostructured materials and composite systems such as organic photovoltaic offer great technological potential due to their attractive properties such as the potential of large-scale and low-cost roll-to-roll manufacturing processes


MRS Bulletin ◽  
1990 ◽  
Vol 15 (11) ◽  
pp. 37-40
Author(s):  
Simon C. Moss ◽  
Stephen M. Shapiro

At the 1989 MRS Fall Meeting the present guest editors and J.D. Jorgensen chaired a symposium on “Neutron Scattering for Materials Science.” Approximately 80 papers were presented, covering a great variety of topics which joined members of the materials science and neutron scattering communities. Because of that symposium's success, it was decided to bring the topic of Neutron Scattering to the wider attention of the materials community through this special issue of the MRS BULLETIN.Our purpose is twofold. First, neutrons have increasingly come to play a crucial role, both here and especially in Europe, in our understanding of the structure and properties of materials. Through the manipulation of materials (radiation-induced effects, transmutation doping of semiconductors), nondestructive materials testing (residual stress measurements on industrial-sized objects, depth profiling of ion-implanted semiconductors) and structural and dynamical studies, academic, government, and industrial scientists and engineers are coming to recognize the broad utility of neutron methods. We would like to highlight some of the advances in this field for MRS BULLETIN readers.Second, neutron scattering presents an excellent example of the contribution of our large research facilities to the solution of both basic and applied problems in materials science. Without the major neutron scattering centers we would be severely limited in the scope of our materials activities (no knowledge of magnetic structures and only primitive insight into polymer structures, for example).


Synthesis ◽  
2021 ◽  
Author(s):  
Leonid Fershtat ◽  
Fedor Teslenko

Five-membered heterocyclic N-oxides attracted special attention due to their strong application potential in medicinal chemistry and advanced materials science. In this regard, novel methods for their synthesis and functionalization are constantly required. In this short review, recent state-of-the-art achievements in the chemistry of isoxazoline N-oxides, 1,2,3-triazole 1-oxides and 1,2,5-oxadiazole 2-oxides are briefly summarized. Main routes to transition-metal-catalyzed and metal-free functionalization protocols along with mechanistic considerations are outlined. Transformation patterns of the hetarene N-oxide rings as precursors to other nitrogen heterocyclic systems are also presented.


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