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The New Materialism and China: energy transformation,Qi,and Event

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学术界 2016年第9期 257-266页

作者： Clayton Crockett University of Central Arkansas

This paper discusses the relationship between the new materialism and *** holds that the event requires a new materialism of energy transformation.

关键词： the new materialism energy transformation Qi event

Response of Indonesian mineral supply to global renewable energy generation:Analysis based on gravity model approach

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Geoscience Frontiers 2024年第4期15卷 383-396页

作者： Md.Monirul Islam Kazi Sohag Suleiman O.Mamman Heyvon Herdhayinta Graduate School of Economics and Management Ural Federal UniversityYekaterinburgRussia Bangladesh Institute of Governance and Management(BIGM) University of DhakaBangladesh Department of Accounting Faculty of Economics and BusinessUniversitas Gadjah MadaIndonesia

The captivating surge of energy transitions in the major industrialized nations has elevated the global demand for critical *** demand pattern has enabled mineral-abundant emerging economies like Indonesia to enter the international market by exporting mineral ***,we investigate the Indonesian mineral export supply's response to the renewable energy production of the 18 clean energy-generating countries,considering crude oil and mineral prices,exchange rates,and economic growth of the resource and importer countries from 1990 to *** doing so,we apply the Poisson Pseudo-maximum Likelihood(PPML)approach to measuring the panel gravity model for mineral exports in *** a result,we observe a significant response of Indonesia's mineral export supply to the renewable energy generation of the 18 mineral importing ***,mineral and crude oil prices are insignificant,whereas the importer countries'exchange rates and income growth positively influence Indonesia's mineral export ***,Indonesia's income factor negatively affects its mineral export ***,we validate our results using an alternative estimator,the Driscoll-Kraay robust standard error estimation ***,our findings suggest implementing Indonesia's existing mineral policy to produce finished mineral goods to materialize the worldwide vision of energy transitions toward a crossroad of net-zero emissions by the middle of the current century.

关键词： Mineral export supply energy transformation Gravity model PPML approach Indonesia Renewable energy-producing countries

Hydrogen energy: Development Prospects, Current Obstacles and Policy Suggestions under China's “Dual Carbon” Goals

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Chinese Journal of Urban and Environmental Studies 2023年第1期11卷 101-114页

作者： SUN Zuoyu Hydrogen energy and Space Propulsion Laboratory (HESPL) School of Mechanical Electronic and Control Engineering Beijing Jiaotong University

Hydrogen energy has an advantage over conventional fossil energy because of its clean and lowcarbon features, while its stability gives it an advantage over renewable energy sources such as hydropower, photovoltaic(PV) power, and wind power. Using hydrogen as a fuel can achieve zero carbon emissions or even net zero emissions at the end of energy conversion. Moreover, with hydrogen as the carrier, an energy system of multi-energy complementarity will be established by coupling multiple energy systems such as power grids, gas grids and heat networks, which can realize the comprehensive utilization of renewable energy sources in an efficient, stable, and flexible manner. Based on the “dual carbon” goals, this paper targets sectors with high carbon emissions represented by electric power, steel and transportation, analyzes the feasible path of using hydrogen energy to promote deep carbon reduction, and points out the obstacles faced by hydrogen energy development in various sectors. On account of the current development and expected prospects, this paper proposes that the current focus of hydrogen energy industry is to coordinate the development of industrial sectors and regions, build a pattern that can facilitate the industry’s systematic and concerted development, address key technical challenges(such as green hydrogen production or hydrogen storage and transportation via pipeline), improve industrial standards, and promote the industry’s development in a balanced, coordinated and orderly way.

关键词： Hydrogen energy energy transformation net zero emissions

Interfacial engineering of graphitic carbon nitride(g-C_3N_4)-based metal sulfide heterojunction photocatalysts for energy conversion: A review

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Chinese Journal of Catalysis 2019年第3期40卷 289-319页

作者： Yijie Ren Deqian Zeng Wee-Jun Ong School of energy and Chemical Engineering Xiamen University Malaysia Selangor Darul Ehsan 43900 Malaysia School of Resources Environment and Materials Guangxi University Nanning 530004 Guangxi China College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 Fujian China

As one of the most appealing and attractive technologies, photocatalysis is widely used as a promising method to circumvent the environmental and energy problems. Due to its chemical stability and unique physicochemical, graphitic carbon nitride (g-C3N4) has become research hotspots in the community. However, g-C3N4 photocatalyst still suffers from many problems, resulting in unsatisfactory photocatalytic activity such as low specific surface area, high charge recombination and insufficient visible light utilization. Since 2009, g-C3N4-based heterostructures have attracted the attention of scientists worldwide for their greatly enhanced photocatalytic performance. Overall, this review summarizes the recent advances of g-C3N4-based nanocomposites modified with transition metal sulfide (TMS), including (1) preparation of pristine g-C3N4,(2) modification strategies of g-C3N4,(3) design principles of TMS-modified g-C3N4 heterostructured photocatalysts, and (4) applications in energy conversion. What is more, the characteristics and transfer mechanisms of each classification of the metal sulfide heterojunction system will be critically reviewed, spanning from the following categories:(1) Type I heterojunction,(2) Type II heterojunction,(3) p-n heterojunction,(4) Schottky junction and (5) Z-scheme heterojunction. Apart from that, the application of g-C3N4-based heterostructured photocatalysts in H2 evolution, CO2 reduction, N2 fixation and pollutant degradation will also be systematically presented. Last but not least, this review will conclude with invigorating perspectives, limitations and prospects for further advancing g-C3N4-based heterostructured photocatalysts toward practical benefits for a sustainable future.

关键词： Graphitic carbon nitride Metal sulfide Photocatalysis energy transformation Water splitting Reduction of carbon dioxide Pollutant degradation Nitrogen fixation

Preparation and Fluorescent Property of Eu-Doped High Silica Glasses

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Journal of Rare Earths 2006年第Z2期24卷 191-195页

作者：陈丹平杨旅云彭明营汪晨达宁乔延波周秦岭朱从善赤井智子 Photo Craft Project Shanghai Institute of Optics and Fine MechanicsChinese Academy of Sciences National Institute of Advanced Industrial Science and Technology Osaka 563-8577Japan Graduate School Chinese Academy of SciencesBeijing 100080China National Institute of Advanced Industrial Science and Technology

A method to fabricate europium ions doped-high silica glass for transparent fluorescence materials based on the fabrication and sintering technique of nano-porous silica glass was reported. Glasses impregnated with Eu ions and sintered at above 1150℃in a reduction atmosphere show a very strong blue light from an emission band at about 430 nm due to the 4f65d→4f7(8S7/2) transition of the Eu2+ ions. On the other hand, the Eu-doped glass obtained by co-impregnated with Y3+ and V5+ ions and sintering in oxidation atmosphere behaves a very strong red emission band at about 615 nm with a UV excitation. An appearance of vanadate band in the excitation spectrum of Eu3+ , Y3+ .and V5+ ions co-doped high silica glass implies an effective energy transferring from VO43- to Eu3+ and effective excitation of Eu3+ by about 500 nm strong broad emission of VO43- .

关键词： europium ions high silica glass redox sintering energy transformation rare earths

Benchmark assessment of performance indices of a selection of hybrid nanofluids in a hybrid photovoltaic/thermal system

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Clean energy 2022年第2期6卷 247-270页

作者： O.M.Amoo R.O.Fagbenle M.O.Oyewola Department of Mechanical Engineering University of IbadanIbadanOyo StateNigeria School of Mechanical Engineering Fiji National UniversityFiji

This research is a study assessing the performance of hybrid nanofluids in hybrid photovoltaic(PV)-thermal *** study addresses 10 hybrid nanofluids applied to hybrid PV-thermal *** transition to carbon-free energy can mitigate the worst effects of climate change,ensuring that global sustainability is *** energy is now responsible for one-third of the global capacity,of which 20%is attributed to solar *** continue to be economically viable,with declining costs driving *** study aims to compare the yearly performances of a model hybrid PV-thermal system using 10 different hybrid *** nanofluids constitute two or more dissimilar materials stably suspended in a base fluid(***).MATLAB and COMSOL Multiphysics®computational fluid dynamics software are employed together for the benchmarking assessment with good agreement *** fluid inlet temperatures(Tin∈[300,360]K),nanofluid volume concentrations(φ∈[0,4]%)and storage-tank volumes(V∈[50,300]L)were *** meteorological data applied were those for Lagos,Nigeria(6°27’55.5192”N,3°24’23.2128”E).The assessment based on analytical-numerical solutions reveals that the thermal enhancement by hybrid nanofluids ranges from 6.7%(graphene oxide[GO]-multiwalled carbon nanotube[MWCNT]/water)to 7%(ZnO-Mn-ZnFe2O4/water)forφ=2%and V=300 *** yearly exergy efficiency ranges from 2.8%(ZnO-Mn-ZnFe2O4/water)to 2.9%(GO-MWCNT/water),also forφ=2%and V=300 *** findings have implications for a vast range of industrial processes,expanding the knowledge that is critical to a sustainable future.

关键词： energy transformation hybrid photovoltaic-thermal(PV/T)system hybrid nanofluids COMSOL Multiphysics® MATLAB enhancements

Coping with climate change and China's wind energy sustainable development

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Advances in Climate Change Research 2016年第1期7卷 3-9页

作者： HE De-Xin Chinese Wind energy Association Beijing 100013 China

Greenhouse gas emissions are the main cause of today's climate change. To address this problem, the world is in an era of new round energy transformation, and the existing energy structure is being reformed. In this paper, according to the Chinese government's action plan for coping with climate change, the China's wind energy sustainable development goals and development route are discussed, and the countermeasures and suggestions are put forward. Wind energy is currently a kind of important renewable energy with matured technology which can be scale-up developed and put into commercial application, and in this transformation, wind energy will play a key role with other non-fossil energy sources. The development and utilization of wind energy is a systematic project, which needs to be solved from the aspects of policy, technology and management. At present, China is in the stage of transferring from "large wind power country" to "strong wind power country", opportunities and challenges coexist, and the advantages of China's socialist system could be fully used, which can concentrate power to do big things and make contribution in the process of realizing global energy transformation.

关键词： Climate change energy transformation Wind energy Sustainable development

New power system development path mechanism design

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Global energy Interconnection 2023年第2期6卷 166-174页

作者： Xiangyu Chen Guang Tian Yan Huang Yang Yang Jialin Li Yuxi Wu Yuanying Chi State Grid Hebei Electric Power Co. Ltd.ShijiazhuangHebei 050022P.R.China energy Development Research Institute China Southern Power GridGuangzhou 510623P.R.China Economic and Technical Research Institute of State Grid Hebei Electric Power Co.Ltd. ShijiazhuangHebei 050022P.R.China School of Economics and Management North China Electric Power UniversityBeijing 102206P.R.China School of Economics and Management Beijing University of TechnologyBeijing 100124P.R.China

Carrying out green energy transformation,implementing clean energy power replacement and supply,and developing a new power system are some primary driving forces needed to fulfill China’s carbon-peak and carbon-neutral strategic *** construction of new power systems in China’s provinces and cities is developing rapidly,and the lack of a typical model promotes the *** new power system path design should be based on the actual development of the power grid in different regions,energy use characteristics,and other actual needs to carry out the differentiated path *** this context,this study analyzes the characteristics of the new domestic power system based on the policy background of the new domestic power system,constructs a new model for power system development stage identification,and proposes the overall design of the new power system development path from the power supply,transmission and distribution,and load *** also uses the Hebei South Network as an example to explore the development stage of the Hebei South Grid based on actual development ***,this study designs a novel power system development path for the entire supply and demand chain for the Hebei South Grid to propose ideas for constructing a new power system in China and to help green energy transformation.

关键词： New power system energy transformation Path design

The Reality and Application of Yin and Yang

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Chinese Medicine 2022年第2期13卷 23-31页

作者： Wutong Song Hongxin Cao Institute of Basic Theory of Traditional Chinese Medicine Chinese Academy of Traditional Chinese Medicine Beijing China

Ancient Chinese philosophers discovered Yin and Yang and the laws of Yin and Yang movement during their exploration and practice of nature more than two thousand years ago, and applied them to life, science, philosophy and medicine, playing an important role in the achievement of ancient Chinese civilization. Through historical changes, yin and yang have gradually been regarded as a concept or theory, thus making it difficult for people to understand the connotation of Yin-Yang and make new discoveries and progress. Nowadays, many scholars in China and the West are interested in studying the treasures of ancient Chinese civilization. We illustrate the actual function of Yin and Yang by explaining the essential state of matter, the law of physical movement, the transformation of energy, and then illustrate the practical application in life and science. In conclusion, yin-yang is a key to unlocking the treasures of traditional Chinese civilization, which can help to bring into play its original values, and continue to provide new insights and directions for the development of modern science and the advancement of humanities.

关键词： Yin and Yang Material Properties Physical Movement energy transformation Practical Applications