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Spectral emittance measurements of micro/nanostructures in energy conversion: a review

Shiquan SHAN, Chuyang CHEN, Peter G. LOUTZENHISER, Devesh RANJAN, Zhijun ZHOU, Zhuomin M. ZHANG

Frontiers in Energy 2020, Volume 14, Issue 3,   Pages 482-509 doi: 10.1007/s11708-020-0693-0

Abstract: Micro/nanostructures play a key role in tuning the radiative properties of materials and have been applied to high-temperature energy conversion systems for improved performance. Among the various radiative properties, spectral emittance is of integral importance for the design and analysis of materials that function as radiative absorbers or emitters. This paper presents an overview of the spectral emittance measurement techniques using both the direct and indirect methods. Besides, several micro/nanostructures are also introduced, and a special emphasis is placed on the emissometers developed for characterizing engineered micro/nanostructures in high-temperature applications (e.g., solar energy conversion and thermophotovoltaic devices). In addition, both experimental facilities and measured results for different materials are summarized. Furthermore, future prospects in developing instrumentation and micro/nanostructured surfaces for practical applications are also outlined. This paper provides a comprehensive source of information for the application of micro/nanostructures in high-temperature energy conversion engineering.

Keywords: concentrating solar power (CSP)     emittance measurements     high temperature     micro/nanostructure     selectiveabsorber     selective emitter     thermophotovoltaics (TPV)    

Analysis of the double-layer α-Si:H emitter with different doping concentrations for α-Si:H/c-Si heterojunction

Haibin HUANG,Gangyu TIAN,Tao WANG,Chao GAO,Jiren YUAN,Zhihao YUE,Lang ZHOU

Frontiers in Energy 2017, Volume 11, Issue 1,   Pages 92-95 doi: 10.1007/s11708-016-0432-8

Abstract: Compared with the traditional single layer emitter, both the experiment and the simulation (AFORS-HET, http://www.paper.edu.cn/html/releasepaper/2014/04/282/) prove that the double-layer emitter increasesthe tunneling probability of the current transport and the decrease of the activation energy of the emitter

Keywords: double-layer emitter     α-Si:H/c-Si heterojunction solar cell     short circuit current     quantum efficiency     current-voltage-temperature    

POCl3 diffusion for industrial Si solar cell emitter formation

Hongzhao LI,Kyung KIM,Brett HALLAM,Bram HOEX,Stuart WENHAM,Malcolm ABBOTT

Frontiers in Energy 2017, Volume 11, Issue 1,   Pages 42-51 doi: 10.1007/s11708-016-0433-7

Abstract: POCl diffusion is currently the standard method for industrial n-type emitter fabrication.In this study, we present the impact of the following processing parameters on emitter formation andBy showing their influence on the emitter doping profile and recombination activity, we provide an overall

Keywords: POCl3 diffusion     emitter recombination     oxidation     silicon    

High-emitter identification for heavy-duty vehicles by temporal optimization LSTMand an adaptive dynamic Research Article

Zhenyi XU, Renjun WANG, Yang CAO, Yu KANG

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 11,   Pages 1633-1646 doi: 10.1631/FITEE.2300005

Abstract: Heavy-duty diesel vehicles are important sources of urban nitrogen oxides (NO) in actual applications for environmental compliance, emitting more than 80% of NO and more than 90% of particulate matter (PM) in total vehicle emissions. The detection and control of heavy-duty diesel emissions are critical for protecting public health. Currently, vehicles on the road must be regularly tested, every six months or once a year, to filter out high-emission mobile sources at vehicle inspection stations. However, it is difficult to effectively screen high-emission vehicles in time with a long interval between annual inspections, and the fixed threshold cannot adapt to the dynamic changes of vehicle driving conditions. An is installed inside the vehicle and can record the vehicle’s emission data in real time. In this paper, we propose a long short-term memory (LSTM) and adaptive approach to identify heavy-duty high-emitters by using OBD data, which can continuously track and record the emission status in real time. First, a LSTM emission prediction model is established to solve the attention bias discrepancy problem on time steps that is caused by the large number of OBD data streams in practice. Then, the concentration prediction error sequence is detected and distinguished from the anomalous emission contexts using flexible criteria, calculated by an adaptive with changing driving conditions. Finally, a similarity metric strategy for the time series is introduced to correct some pseudo anomalous results. Experiments on three real OBD time-series emission datasets demonstrate that our method can achieve high accuracy anomalous emission identification.

Keywords: High-emitter identification     Temporal optimization     On-board diagnostic device (OBD)     Dynamic threshold    

Recent advances in selective acetylene hydrogenation using palladium containing catalysts

Alan J. McCue, James A. Anderson

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 2,   Pages 142-153 doi: 10.1007/s11705-015-1516-4

Abstract: Recent advances with Pd containing catalysts for the selective hydrogenation of acetylene are described

Keywords: acetylene     ethylene     selective hydrogenation     palladium     bimetallic    

Preparation of polysulfone-based block copolymer ultrafiltration membranes by selective swelling and

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 5,   Pages 745-754 doi: 10.1007/s11705-021-2038-x

Abstract: Selective swelling of block copolymers of polysulfone-b-poly(ethylene glycol) is an emerging strategyHerein, we prepared nanoporous polysulfone-b-poly(ethylene glycol) ultrafiltration membranes by selectiveSelective swelling was performed on the obtained block copolymer structures in the solvent pair of ethanol

Keywords: block copolymers     selective swelling     ultrafiltration     CaCO3 nanoparticles     sacrificial nanofillers    

Highly efficient and selective removal of vanadium from tungstate solutions by microbubble floating-extraction

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 5,   Pages 581-593 doi: 10.1007/s11705-022-2235-2

Abstract: Selective separation of dissolved tungsten and vanadium is of great significance for the utilizationIn this work, selective removal of vanadium from tungstate solutions via microbubble floating-extraction

Keywords: tungsten     vanadium     selective separation     reagent mineralization     microbubble floating-extraction    

Mechanistic insights into the selective photocatalytic degradation of dyes over TiO/ZSM-11

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1701-5

Abstract:

● TiO2/ZSM-11 was prepared by a facile solid state dispersion method.

Keywords: Selective dye degradation     Photocatalysis     TiO2     ZSM-11     Chemisorption    

Porous ultrathin-shell microcapsules designed by microfluidics for selective permeation and stimuli-triggered

Frontiers of Chemical Science and Engineering   Pages 1643-1650 doi: 10.1007/s11705-022-2201-z

Abstract: Generally, microcapsules with solid shells lack selective permeation and only exhibit a simple releasewater-in-oil-in-water double emulsions as templates and design porous ultrathin-shell microcapsules for selectiveThe porous ultrathin-shell microcapsules exhibit excellent properties, including tunable size, selective

Keywords: microcapsule     emulsion     microfluidics     selective permeation     stimuli-triggered release    

Highly selective and green recovery of lithium ions from lithium iron phosphate powders with ozone

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 6,   Pages 749-758 doi: 10.1007/s11705-022-2261-0

Abstract: Here, we describe a selective recovery process that can achieve economically efficient recovery and anAdjusting the acid concentration and amount of oxidant enables selective recovery of lithium ions.temperature on the leaching of lithium and iron are comprehensively explored, and the mechanism of selective

Keywords: lithium iron phosphate powder     stoichiometric number     selective leaching     lithium recovery    

Shape selective catalysis in methylation of toluene: Development, challenges and perspectives

Jian Zhou, Zhicheng Liu, Yangdong Wang, Dejin Kong, Zaiku Xie

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1,   Pages 103-112 doi: 10.1007/s11705-017-1671-x

Abstract: “molecular engineering” process to realize directional conversion of toluene/methanol molecules by selectivehistory of methylation catalysts and reaction mechanism, and the effect of reaction condition in -selectiveIf constructing -xylene as the single target product, the major challenge to develop -selective toluene

Keywords: shape selective catalysis     methylation of toluene    

Design and operational considerations for selective catalytic reduction technologies at coal-fired boilers

Jeremy J. SCHREIFELS, Shuxiao WANG, Jiming HAO

Frontiers in Energy 2012, Volume 6, Issue 1,   Pages 98-105 doi: 10.1007/s11708-012-0171-4

Abstract: Protection (MEP) has introduced new NO emission control policies to encourage the installation of selective

Keywords: nitrogen oxides (NOx)     coal     selective catalytic reduction (SCR)     air pollution    

Low-temperature selective catalytic reduction of NO with NH based on MnO-CeO/ACFN

SHEN Boxiong, LIU Ting, SHI Zhanliang, SHI Jianwei, YANG Tingting, ZHAO Ning

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 3,   Pages 325-329 doi: 10.1007/s11705-008-0053-9

Abstract: MnO-CeO/ACFN were prepared by the impregnation method and used as catalyst for selective catalytic reduction

Keywords: preparation     conversion     favorable     selective catalytic     MnO-CeO/ACFN    

Multi-stage ammonia production for sorption selective catalytic reduction of NO

Chen ZHANG, Guoliang AN, Liwei WANG, Shaofei WU

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 840-851 doi: 10.1007/s11708-021-0797-1

Abstract: Sorption selective catalytic reduction of nitrogen oxides (NOx) (sorption-SCR) hasever been proposed for replacing commercial urea selective catalytic reduction of NOx

Keywords: selective catalytic reduction (SCR)     nitrogen oxides (NOx)     ammonia     composite sorbent    

Insight into the promotion mechanism of activated carbon on the monolithic honeycomb red mud catalyst for selective

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-020-1337-7

Abstract:

• Activated carbon was proposed to be an efficient accelerant for molded red mud catalyst.

Keywords: NOx     Selective catalytic reduction     Iron-based catalyst     Red mud     Monolithic catalyst    

Title Author Date Type Operation

Spectral emittance measurements of micro/nanostructures in energy conversion: a review

Shiquan SHAN, Chuyang CHEN, Peter G. LOUTZENHISER, Devesh RANJAN, Zhijun ZHOU, Zhuomin M. ZHANG

Journal Article

Analysis of the double-layer α-Si:H emitter with different doping concentrations for α-Si:H/c-Si heterojunction

Haibin HUANG,Gangyu TIAN,Tao WANG,Chao GAO,Jiren YUAN,Zhihao YUE,Lang ZHOU

Journal Article

POCl3 diffusion for industrial Si solar cell emitter formation

Hongzhao LI,Kyung KIM,Brett HALLAM,Bram HOEX,Stuart WENHAM,Malcolm ABBOTT

Journal Article

High-emitter identification for heavy-duty vehicles by temporal optimization LSTMand an adaptive dynamic

Zhenyi XU, Renjun WANG, Yang CAO, Yu KANG

Journal Article

Recent advances in selective acetylene hydrogenation using palladium containing catalysts

Alan J. McCue, James A. Anderson

Journal Article

Preparation of polysulfone-based block copolymer ultrafiltration membranes by selective swelling and

Journal Article

Highly efficient and selective removal of vanadium from tungstate solutions by microbubble floating-extraction

Journal Article

Mechanistic insights into the selective photocatalytic degradation of dyes over TiO/ZSM-11

Journal Article

Porous ultrathin-shell microcapsules designed by microfluidics for selective permeation and stimuli-triggered

Journal Article

Highly selective and green recovery of lithium ions from lithium iron phosphate powders with ozone

Journal Article

Shape selective catalysis in methylation of toluene: Development, challenges and perspectives

Jian Zhou, Zhicheng Liu, Yangdong Wang, Dejin Kong, Zaiku Xie

Journal Article

Design and operational considerations for selective catalytic reduction technologies at coal-fired boilers

Jeremy J. SCHREIFELS, Shuxiao WANG, Jiming HAO

Journal Article

Low-temperature selective catalytic reduction of NO with NH based on MnO-CeO/ACFN

SHEN Boxiong, LIU Ting, SHI Zhanliang, SHI Jianwei, YANG Tingting, ZHAO Ning

Journal Article

Multi-stage ammonia production for sorption selective catalytic reduction of NO

Chen ZHANG, Guoliang AN, Liwei WANG, Shaofei WU

Journal Article

Insight into the promotion mechanism of activated carbon on the monolithic honeycomb red mud catalyst for selective

Journal Article