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Journal articles on the topic 'Hopcalite'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Zhang, Yunke, Marianna A. Busch, and Kenneth W. Busch. "Pre-Excitation, Catalytic Oxidation of Analytes over Hopcalite in Flame/Furnace Infrared Emission (FIRE) Spectrometry." Applied Spectroscopy 46, no. 4 (1992): 631–39. http://dx.doi.org/10.1366/0003702924125096.

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Gas-phase infrared emission measurements made with the use of a new, specially designed, electrically heated furnace or a small hydrogen/air flame have shown that oxidation of a variety of carbon-based analytes to CO2 over the catalyst hopcalite prior to vibrational excitation in the furnace or flame markedly improves the response of the FIRE radiometer. Calibration curves obtained with the use of the furnace alone were generally nonlinear, while those obtained with the flame alone had slopes that were compound dependent. By the use of hopcalite in conjunction with the furnace, conversion to C

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2

Biemelt, T., K. Wegner, J. Teichert, and S. Kaskel. "Microemulsion flame pyrolysis for hopcalite nanoparticle synthesis: a new concept for catalyst preparation." Chemical Communications 51, no. 27 (2015): 5872–75. http://dx.doi.org/10.1039/c5cc00481k.

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3

Dey, Subhashish, Ganesh Chandra Dhal, Devendra Mohan, and Ram Prasad. "Study of Hopcalite (CuMnOx) Catalysts Prepared Through A Novel Route for the Oxidation of Carbon Monoxide at Low Temperature." Bulletin of Chemical Reaction Engineering & Catalysis 12, no. 3 (2017): 393. http://dx.doi.org/10.9767/bcrec.12.3.882.393-407.

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Carbon monoxide (CO) is a poisonous gas, recognized as a silent killer. The gas is produced by incomplete combustion of carbonaceous fuel. Recent studies have shown that hopcalite group is one of the promising catalysts for CO oxidation at low temperature. In this study, hopcalite (CuMnOx) catalysts were prepared by KMnO4 co-precipitation method followed by washing, drying the precipitate at different temperatures (22, 50, 90, 110, and 120 oC) for 12 h in an oven and subsequent calcination at 300 oC in stagnant air, flowing air and in a reactive gas mixture of (4.5% CO in air) to do the reacti

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4

Kulikov, N. K., S. G. Kireev, A. O. Shevchenko, V. M. Mukhin, S. N. Tkachenko, and T. G. Lupascu. "The Influence of Binding Material on Porous Structure of Shaped Hopcalite." Chemistry Journal of Moldova 3, no. 1 (2008): 67–69. http://dx.doi.org/10.19261/cjm.2008.03(1).11.

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The authors have investigated the equilibrated adsorption of water vapors on GFG hopcalite, which was obtained using the extrusion shaping method, with bentonite clay as the binding compound. In the frames of the BET model, the values of the monolayer capacity and the size of medium area occupied by the water molecule in the filled monolayer have been determined. The distribution of pores according to their sizes has been evaluated. It has been established that the modification of the bentonitic clay allows directed construction of the hopcalite porous structure,i.e. the formation of the mesop

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5

Kireev, A. S., V. M. Mukhin, S. G. Kireev, V. N. Klushin, and S. N. Tkachenko. "Preparation and properties of modified hopcalite." Russian Journal of Applied Chemistry 82, no. 1 (2009): 169–71. http://dx.doi.org/10.1134/s1070427209010339.

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6

Jaworska-Galas, Z., W. Mista, J. Wrzyszcz, and M. Zawadzki. "Thermal stability improvement of hopcalite catalyst." Catalysis Letters 24, no. 1-2 (1994): 133–39. http://dx.doi.org/10.1007/bf00807383.

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7

Sonar, Shilpa, Jean-Marc Giraudon, Savita Kaliya Perumal Veerapandian, et al. "Adsorption Followed by Plasma Assisted Catalytic Conversion of Toluene into CO2 on Hopcalite in an Air Stream." Catalysts 11, no. 7 (2021): 845. http://dx.doi.org/10.3390/catal11070845.

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The abatement of toluene was studied in a sequential adsorption-plasma catalysis (APC) process. Within this process, Hopcalite was used as bifunctional material: as adsorbent (storage stage) and as catalyst via the oxidation of adsorbed toluene (discharge stage). It was observed that the desorption and oxidation activity of the adsorbed toluene was significantly affected the process variables. In addition, the adsorption time influenced the CO2 selectivity and CO2 yield by changing the interaction between the catalyst and the plasma generated species. At least four APC sequences were performed

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8

Jaworska-Galas, Z., W. Miśta, J. Wrzyszcz, and M. Zawadzki. "Stabilization of hopcalite catalyst in alumina matrix." Reaction Kinetics & Catalysis Letters 48, no. 1 (1992): 163–69. http://dx.doi.org/10.1007/bf02070081.

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9

M. "Preparation-Properties Relation of Mn-Cu Hopcalite Catalyst." American Journal of Applied Sciences 9, no. 2 (2012): 265–70. http://dx.doi.org/10.3844/ajassp.2012.265.270.

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10

Wang, Lin Tong. "Oxidation of Copper Zinc Oxide Catalysts by Carbon Monoxide." Advanced Materials Research 332-334 (September 2011): 564–67. http://dx.doi.org/10.4028/www.scientific.net/amr.332-334.564.

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Copper zinc oxide catalysts are effective for the ambient temperature carbon monoxide oxidation and display higher specific activity than the current commercial hopcalite catalyst. We investigate the copper zinc oxide catalyst prepared by co-precipitation under different atmospheres for the oxidation of carbon monoxide at low temperatures and these systems are now worthy of further investigation.

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11

Sonar, Shilpa, Jean-Marc Giraudon, Savita Kaliya Perumal Veerapandian, et al. "Abatement of Toluene Using a Sequential Adsorption-Catalytic Oxidation Process: Comparative Study of Potential Adsorbent/Catalytic Materials." Catalysts 10, no. 7 (2020): 761. http://dx.doi.org/10.3390/catal10070761.

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A novel strategy for toluene abatement was investigated using a sequential adsorption-regeneration process. Commercial Hopcalite (CuMn2Ox, Purelyst101MD), Ceria nanorods, and UiO-66-SO3H, a metal–organic framework (MOF), were selected for this study. Toluene was first adsorbed on the material and a mild thermal activation was performed afterwards in order to oxidize toluene into CO2 and H2O. The materials were characterized by XRD, N2 adsorption-desorption analysis, H2-TPR and TGA/DSC. The best dynamic toluene adsorption capacity was observed for UiO-66-SO3H due to its hierarchical porosity an

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12

Zhao, Guoyan, Huan Pang, Yahui Ma, et al. "Synthesis of hopcalite nanomaterials and study of their properties." International Journal of Nanomanufacturing 9, no. 3/4 (2013): 270. http://dx.doi.org/10.1504/ijnm.2013.056052.

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13

Deraz, N. M., and Omar H. Abd-Elkader. "Synthesis and Characterization of Nano- crystalline Bixbyite- Hopcalite Solids." International Journal of Electrochemical Science 8, no. 7 (2013): 10112–20. http://dx.doi.org/10.1016/s1452-3981(23)13036-7.

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14

Trüe, A., N. Panichev, J. Okonkwo, and P. B. C. Forbes. "Determination Of The Mercury Content Of Lichens and Comparison To Atmospheric Mercury Levels In The South African Highveld Region." Clean Air Journal 21, no. 1 (2012): 19–25. http://dx.doi.org/10.17159/caj/2012/21/1.7075.

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The concentration of mercury vapour in ambient air is routinely determined using specialised instruments.As an economical alternative, actively pumped Hopcalite sorbent tubes can be used to trap atmosphericmercury, which is subsequently analysed by cold vapour atomic absorption spectroscopy. Plant materialsare also readily available in most regions and can be analysed to obtain information on time averagedatmospheric mercury levels.Lichen and tree bark samples were collected in the cities of Pretoria and Witbank, dried and acid digestedwith subsequent cold vapour atomic absorption spectroscopy

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15

Lv, Li, Yue Tian, Guo Lin Han, Jian Kang, and Wen Bang Zhao. "The Catalytic Oxidation of Benzene by Hopcalite under Microwave Irradiation." Key Engineering Materials 834 (March 2020): 32–36. http://dx.doi.org/10.4028/www.scientific.net/kem.834.32.

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In order to explore an efficient and rapid method for treating typical volatile organic compounds (VOCs), benzene, as a HYPERLINK "javascript:void (0)" representative of VOCs, was catalytically oxidized by hopcalite under microwave irradiation. The decontamination performance under different conditions was studied, and the influences of some factors on the benzene conversion ratio were tested, such as microwave irradiation power, initial benzene concentration, catalyst amount and gas humidity. Results showed that benzene conversion ratio could reach 99.2% under the condition that microwave pow

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16

Basahel, S. N., E. H. El Mossalamy, and M. Mokhtar. "Preparation and physicochemical characterisation of thermally stable nano-sized hopcalite catalysts." International Journal of Nanomanufacturing 4, no. 1/2/3/4 (2009): 159. http://dx.doi.org/10.1504/ijnm.2009.028122.

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17

Marinoiu, Adriana, Mircea Raceanu, Claudia Cobzaru, et al. "Low temperature CO retention using hopcalite catalyst for fuel cell applications." Reaction Kinetics, Mechanisms and Catalysis 112, no. 1 (2014): 37–50. http://dx.doi.org/10.1007/s11144-014-0694-2.

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18

Guo, Hong Xia, Jing De Lü, Hui Qiang Wu, Shu Juan Xiao, and Jie Han. "Synthesis of Diphenyl Carbonate by Oxidative Carbonylation of Phenol with Pd-Co/Hopcalite." Advanced Materials Research 750-752 (August 2013): 1292–95. http://dx.doi.org/10.4028/www.scientific.net/amr.750-752.1292.

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Hopcalite mixed oxides were used as support of the catalyst for the synthesis of diphenyl carbonate (DPC) by oxidative carbonylation of phenol .The catalyst was characterized by scanning electron microscopy (SEM), X-ray power diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The results show that the size of the particles is well-distributed and the physical structure is favorable, which contribute to the reaction efficiently. The main crystal phase in catalyst is CuMn2O4, CoMn2O4and Pd0.5Pd3O4, and the valency of Mn and Co remains unchanged. Finally, the synthesis of DPC was carr

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19

Deraz, N. M., and Omar H. Abd-Elkader. "Effects of Precursor on Preparation and Properties of Nano-Crystalline Hopcalite Particles." Asian Journal of Chemistry 26, no. 7 (2014): 2133–37. http://dx.doi.org/10.14233/ajchem.2014.16528.

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20

Dey, S., and G. C. Dhal. "Deactivation and regeneration of hopcalite catalyst for carbon monoxide oxidation: a review." Materials Today Chemistry 14 (December 2019): 100180. http://dx.doi.org/10.1016/j.mtchem.2019.07.002.

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21

YOON, C. "The design and preparation of planar models of oxidation catalysts I. Hopcalite." Journal of Catalysis 113, no. 2 (1988): 267–80. http://dx.doi.org/10.1016/0021-9517(88)90256-4.

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22

Turnipseed, Andrew A., Peter C. Andersen, Craig J. Williford, Christine A. Ennis, and John W. Birks. "Use of a heated graphite scrubber as a means of reducing interferences in UV-absorbance measurements of atmospheric ozone." Atmospheric Measurement Techniques 10, no. 6 (2017): 2253–69. http://dx.doi.org/10.5194/amt-10-2253-2017.

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Abstract. A new solid-phase scrubber for use in conventional ozone (O3) photometers was investigated as a means of reducing interferences from other UV-absorbing species and water vapor. It was found that when heated to 100–130 °C, a tubular graphite scrubber efficiently removed up to 500 ppb ozone and ozone monitors using the heated graphite scrubber were found to be less susceptible to interferences from water vapor, mercury vapor, and aromatic volatile organic compounds (VOCs) compared to conventional metal oxide scrubbers. Ambient measurements from a graphite scrubber-equipped photometer a

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23

Cardenas, Cristian, David Farrusseng, Cécile Daniel, and Rémy Aubry. "Modeling of equilibrium water vapor adsorption isotherms on activated carbon, alumina and hopcalite." Fluid Phase Equilibria 561 (October 2022): 113520. http://dx.doi.org/10.1016/j.fluid.2022.113520.

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24

Dey, S., and G. C. Dhal. "Synthesis of Hopcalite catalysts by various methods for improved catalytic conversion of carbon monoxide." Materials Science for Energy Technologies 3 (2020): 377–89. http://dx.doi.org/10.1016/j.mset.2020.02.005.

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25

Dey, Subhashish, Ganesh Chandra Dhal, Devendra Mohan, and Ram Prasad. "Application of hopcalite catalyst for controlling carbon monoxide emission at cold-start emission conditions." Journal of Traffic and Transportation Engineering (English Edition) 6, no. 5 (2019): 419–40. http://dx.doi.org/10.1016/j.jtte.2019.06.002.

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26

VEPEK, S. "Mechanism of the deactivation of Hopcalite catalysts studied by XPS, ISS, and other techniques." Journal of Catalysis 100, no. 1 (1986): 250–63. http://dx.doi.org/10.1016/0021-9517(86)90090-4.

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27

Biemelt, T., K. Wegner, J. Teichert, et al. "Hopcalite nanoparticle catalysts with high water vapour stability for catalytic oxidation of carbon monoxide." Applied Catalysis B: Environmental 184 (May 2016): 208–15. http://dx.doi.org/10.1016/j.apcatb.2015.11.008.

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28

Wegner, Karl, Rene Zippel, Maximilian Medicus, Elke Schade, Julia Grothe, and Stefan Kaskel. "Molecular Precursors for Tailoring Humidity Tolerance of Nanoscale Hopcalite Catalysts Via Flame Spray Pyrolysis." ChemCatChem 11, no. 18 (2019): 4593–603. http://dx.doi.org/10.1002/cctc.201900990.

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29

Dey, Subhashish, and Ganesh Chandra Dhal. "A Review of Synthesis, Structure and Applications in Hopcalite Catalysts for Carbon Monoxide Oxidation." Aerosol Science and Engineering 3, no. 4 (2019): 97–131. http://dx.doi.org/10.1007/s41810-019-00046-1.

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30

Dey, Subhashish, Ganesh Chandra Dhal, Devendra Mohan, and Ram Prasad. "Ambient temperature complete oxidation of carbon monoxide using hopcalite catalysts for fire escape mask applications." Advanced Composites and Hybrid Materials 2, no. 3 (2019): 501–19. http://dx.doi.org/10.1007/s42114-019-00108-5.

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31

Baranov, V. Yu, G. F. Drokov, V. A. Kuz'menko, V. S. Mezhevov, and V. V. Pigul'skaya. "Stabilization of the composition of the gaseous medium in a pulse-periodic CO2laser by hopcalite." Soviet Journal of Quantum Electronics 16, no. 5 (1986): 645–47. http://dx.doi.org/10.1070/qe1986v016n05abeh006607.

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32

Bradshaw, D. I., P. T. Coolen, R. W. Judd, and C. Komodromos. "Partial oxidation of methane over hopcalite and over manganese dioxide promoted by chlorine and alkali." Catalysis Today 6, no. 4 (1990): 427–33. http://dx.doi.org/10.1016/0920-5861(90)85036-n.

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33

Guo, Hong Xia, Jing De Lü, Hui Qiang Wu, Shu Juan Xiao, and Jie Han. "Comparation of Cu-Co-Mn Mixed Oxides and Hopcalite as Support in Synthesis of Diphenyl Carbonate by Oxidative Carbonylation of Phenol." Advanced Materials Research 750-752 (August 2013): 1287–91. http://dx.doi.org/10.4028/www.scientific.net/amr.750-752.1287.

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The difference of Cu-Co-Mn mixed oxides and hopcalite as support in synthesis of diphenyl carbonate by oxidative carbonylation of phenol was studied. The catalysts were characterized by transmission electron microscopy, scanning electron microscopy, X-ray power diffraction, and X-ray photoelectron spectroscopy. The results show that the average particle diameter of the former catalyst is about 40 nm, whereas the other catalyst is about 0.5 μm. The main crystal phase in the former catalyst is Co2MnO4and Pd0.5Pd3O4, which in the latter catalyst is CuMn2O4, CoMn2O4and Pd0.5Pd3O4.The oxygen atoms

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34

Dey, S., and N. S. Mehta. "To optimized various parameters of Hopcalite catalysts in the synthetic processes for low temperature CO oxidation." Applications in Energy and Combustion Science 6 (June 2021): 100031. http://dx.doi.org/10.1016/j.jaecs.2021.100031.

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35

Guo, Yafei, Changhai Li, Shouxiang Lu, and Chuanwen Zhao. "Low temperature CO catalytic oxidation and kinetic performances of KOH–Hopcalite in the presence of CO2." RSC Advances 6, no. 9 (2016): 7181–88. http://dx.doi.org/10.1039/c5ra23806d.

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36

Kaliya Perumal Veerapandian, Savita, Jean-Marc Giraudon, Nathalie De Geyter, et al. "Regeneration of Hopcalite used for the adsorption plasma catalytic removal of toluene by non-thermal plasma." Journal of Hazardous Materials 402 (January 2021): 123877. http://dx.doi.org/10.1016/j.jhazmat.2020.123877.

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37

Szynkowska, M. I., A. Węglińska, E. Wojciechowska, and T. Paryjczak. "The Influence of Thermal Treatment and Noble Metal Addition on Hopcalite Activity in Oxidation of Thiophene." Catalysis Letters 128, no. 3-4 (2008): 323–30. http://dx.doi.org/10.1007/s10562-008-9735-7.

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38

Kodu, Margus, Rainer Pärna, Tea Avarmaa, et al. "Gas-Sensing Properties of Graphene Functionalized with Ternary Cu-Mn Oxides for E-Nose Applications." Chemosensors 11, no. 8 (2023): 460. http://dx.doi.org/10.3390/chemosensors11080460.

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Chemiresistive gas sensors were produced by functionalizing graphene with a ~3 nm layer of mixed oxide xCu2O⸱yMnO using pulsed laser deposition (PLD) from a hopcalite CuMn2O4 target. Sensor response time traces were recorded for strongly oxidizing (NO2, O3) and reducing (NH3, H2S) poisonous gases at ppb and ppm levels, respectively. The morphology of the MOX layer was modified by growth temperature during PLD, resulting in the optimization of the sensor response. Differences in decomposition or oxidation rates on catalytically active metal oxide (MOX) were utilized to achieve partial selectivi

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39

Zhang, Hao, Tan Meng, Min Zhang, et al. "Understanding the Role of Active Lattice Oxygen in CO Oxidation Catalyzed by Copper-Doped Mn2O3@MnO2." Molecules 30, no. 4 (2025): 865. https://doi.org/10.3390/molecules30040865.

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Although the hopcalite catalyst, primarily composed of manganese oxide and copper oxide, has been extensively studied for carbon monoxide (CO) elimination, there remains significant potential to optimize its structure and activity. Herein, Cu-doped Mn3O2@MnO2 catalysts featuring highly exposed interfacial regions were prepared. The correlation between interfacial exposure and catalytic activity indicates that the interfacial region serves as the active site for CO catalytic oxidation. The characteristic adsorption of CO by Cu species significantly enhances the catalytic activity of the catalys

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40

Dey, S., and N. S. Mehta. "Influence the performances of hopcalite catalysts by the addition of gold nanoparticle for low temperature CO oxidation." Cleaner Engineering and Technology 4 (October 2021): 100171. http://dx.doi.org/10.1016/j.clet.2021.100171.

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41

Adánez-Rubio, Iñaki, Alberto Abad, Pilar Gayán, et al. "Use of Hopcalite-Derived Cu–Mn Mixed Oxide as Oxygen Carrier for Chemical Looping with Oxygen Uncoupling Process." Energy & Fuels 30, no. 7 (2016): 5953–63. http://dx.doi.org/10.1021/acs.energyfuels.6b00552.

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42

Chen, Hong, Xinli Tong, and Yongdan Li. "Mesoporous Cu–Mn Hopcalite catalyst and its performance in low temperature ethylene combustion in a carbon dioxide stream." Applied Catalysis A: General 370, no. 1-2 (2009): 59–65. http://dx.doi.org/10.1016/j.apcata.2009.09.017.

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43

Al-Senani, Ghadah M., Omar H. Abd-Elkader, and Nasrallah M. Deraz. "Fabrication of Cu1.5Mn1.5O4 Nanoparticles Using One Step Self-Assembling Route to Enhance Energy Consumption." Applied Sciences 11, no. 5 (2021): 2034. http://dx.doi.org/10.3390/app11052034.

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The preparation of copper manganite (hopcalite, Cu1.5Mn1.5O4), as a single phase, was achieved by using a sustainable method of green synthesis. This method is based on the replacement of the conventional “brute force” ceramic preparation by the recent “soft force” green synthesis via the egg white assisted one-step method. In other words, we present a facile and rapid methodology to prepare the nanocrystalline Cu1.5Mn1.5O4 spinel as a single phase, compared to our previous work using ceramic and glycine-assisted combustion methods. The as-synthesized copper manganite was characterized using X

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44

Napruszewska, Bogna D., Alicja Michalik, Anna Walczyk, et al. "Composites of Laponite and Cu–Mn Hopcalite-Related Mixed Oxides Prepared from Inverse Microemulsions as Catalysts for Total Oxidation of Toluene." Materials 11, no. 8 (2018): 1365. http://dx.doi.org/10.3390/ma11081365.

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Composites of Laponite and Cu–Mn hopcalite-related mixed oxides, prepared from hydrotalcite-like (Htlc) precursors obtained in inverse microemulsions, were synthesized and characterized with XRF, XRD, SEM, TEM, H2 temperature-programmed reduction (TPR), and N2 adsorption/desorption at −196 °C. The Htlc precursors were precipitated either with NaOH or tetrabutylammonium hydroxide (TBAOH). Al was used as an element facilitating Htlc structure formation, and Ce and/or Zr were added as promoters. The composites calcined at 600 °C are mesoporous structures with similar textural characteristics. The

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45

Chen, Hong, Jihui Wang, He Li, Dongfang Wu, Mingfa Yao, and Yongdan Li. "Low temperature combustion of ethylene in a carbon dioxide stream over a cordierite monolith-supported Cu–Mn Hopcalite catalyst." Applied Catalysis A: General 427-428 (June 2012): 73–78. http://dx.doi.org/10.1016/j.apcata.2012.03.035.

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46

Zhang, Yunke, Marianna A. Busch та Kenneth W. Busch. "Terminal and Intermediate Combustion Products Observed from 2.0 to 5.0 μm in Flame/Furnace Infrared Emission Spectrometry". Applied Spectroscopy 46, № 11 (1992): 1673–84. http://dx.doi.org/10.1366/0003702924926772.

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A computer-controlled, dispersive, scanning spectrometer with a wavelength range from 1 to 15 μm is described and used to study the flame/furnace infrared emission (FIRE) spectra of combustion products formed in a small analyte/air flame and in an electrically heated furnace (570°C), operated with and without a column of heated hopcalite (370°C). When lead selenide was used as the detector, the emission spectra of the combustion products of pentane, benzene, dichloromethane, and methanol could be measured over the wavelength range from 2 to 5 μm. In addition to discrete emission bands from ter

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47

Li, He, Hong Chen, Mingfa Yao, and Yongdan Li. "Reaction Kinetics of Ethylene Combustion in a Carbon Dioxide Stream over a Cu–Mn–O Hopcalite Catalyst in Low Temperature Range." Industrial & Engineering Chemistry Research 52, no. 2 (2013): 686–91. http://dx.doi.org/10.1021/ie303340n.

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48

Dey, Subhashish, Ganesh Chandra Dhal, Devendra Mohan, and Ram Prasad. "Effect of Preparation Conditions on the Catalytic Activity of CuMnOx Catalysts for CO Oxidation." Bulletin of Chemical Reaction Engineering & Catalysis 12, no. 3 (2017): 437. http://dx.doi.org/10.9767/bcrec.12.3.900.437-451.

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The hopcalite (CuMnOx) catalyst is a well-known catalyst for oxidation of CO at ambient temperature. It has prepared by co-precipitation method and the preparation parameters were like Copper/Manganese (Cu:Mn) molar ratios, drying temperature, drying time, calcination temperature and calcination time has an influence on activity of the resultant catalyst. The activity of the catalyst was measured in flowing air calcinations (FAC) conditions. The reaction temperature was increased from ambient to a higher value at which complete oxidation of CO was achieved. The particle size, weight of catalys

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49

Mouat, Asher P., Zelda A. Siegel, and Jennifer Kaiser. "Evaluation of Aeris mid-infrared absorption (MIRA), Picarro CRDS (cavity ring-down spectroscopy) G2307, and dinitrophenylhydrazine (DNPH)-based sampling for long-term formaldehyde monitoring efforts." Atmospheric Measurement Techniques 17, no. 7 (2024): 1979–94. http://dx.doi.org/10.5194/amt-17-1979-2024.

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Abstract. Current formaldehyde (HCHO) measurement networks rely on the TO-11A offline chemical derivatization technique, which can be resource intensive and limited in temporal resolution. In this work, we evaluate the field performance of three new commercial instruments for continuous in situ formaldehyde monitoring: the Picarro cavity ring-down spectroscopy G2307 gas concentration analyzer and Aeris Technologies' mid-infrared absorption Pico and Ultra gas analyzers. All instruments require regular drift correction, which is accomplished through instrument zeroing using dinitrophenylhydrazin

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50

Liu, Yang, Yao Guo, Honggen Peng, et al. "Modifying Hopcalite catalyst by SnO 2 addition: An effective way to improve its moisture tolerance and activity for low temperature CO oxidation." Applied Catalysis A: General 525 (September 2016): 204–14. http://dx.doi.org/10.1016/j.apcata.2016.07.023.

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