All Stories

  1. Construction of Cu Metal-organic Frameworks with Mixed Valence Sites for Photoelectrocatalytic CO2 Reduction
  2. Stabilizing Cu 0 ─Cu δ+ Active Centers via Strong Metal–Support Interaction Enforced Intermetallic Cu 3 ...
  3. Radiation‐induced instability of organic‐inorganic halide perovskite single crystals
  4. Innovative Co-doped MXene and aerogel catalysts for rapid and efficient degradation of carbamazepine via PMS activation
  5. NiAl–MoO 2 S 2 Nanoparticles: Structural Evolution and Mechanistic Insights into High-Performance Selenium Oxyanion Removal across Diverse pH Conditions
  6. Modulating Hydrogen Exchange Capabilities by Heterogenizing Pd Nanoclusters onto Ni3C Multipods for Efficiently Driving the “Formaldehyde-Nitrate” Tandem Electrochemical System
  7. Distribution and speciation of uranium in pristine Tethyan phosphorites, Ionian Zone, Albania: Insights from synchrotron XRF/XANES analyses
  8. Energy-conservative CO2 electroreduction for efficient formate co-generation
  9. Pd Single‐Atoms Doped Cu3P Quantum Dots with Moderately Optimized H* Sorption Behaviors for Actualizing the Multifunctional “Formaldehyde‐Nitrate” Galvanic System
  10. Development of Ag/Ti3+/TiO2-Coated ceramic water filter for removing bacteria and organic pollutants
  11. Accelerated identification of microstructure and phase stability in nanostructured refractory medium entropy alloys by combinatorial libraries
  12. The valence states of Nb and Ta in magmatic-hydrothermal systems: Insights from combined SXAS and XPS analyses of titanite and ilmenite in two Chinese anorogenic suites
  13. Interfacial engineering of defects-enriched RuO2-Co3O4-x/Cobalt Foam heterojunctions with modulated Ru-O-Co electronic bridges for long-term efficient sulfur removal and direct alkaline seawater hydrogen production
  14. Binding mechanisms of Y and HREE sorption on birnessite: New insights into the formation and sustainable development of regolith-hosted REE deposits
  15. Manipulation of Hydrogen Transfer Behaviors by RhCu Alloying Enables an All‐in‐one Sustainable “Furfural‐Nitrate” System
  16. Synergy of Strongly Coordinating Salts and Weakly Coordinating Solvents Enables Stable and Fast-Kinetics Zinc Metal Batteries
  17. Golden Single‐Atom Alloys Selectively Boosting Oxygen Reduction and Methanol Oxidation
  18. Development of an EOR-produced petroleum wastewater treatment system through integrated polyacrylonitrile membrane and ZrO2/sericin technologies: revelation of interactive mechanism based on synchrotron and XDLVO analyses
  19. Boosting Alcohol Oxidation Electrocatalysis with Multifactorial Engineered Pd1/Pt Single-Atom Alloy-BiOx Adatoms Surface
  20. Enrichment mechanism of heavy rare earth elements in magmatic-hydrothermal titanite: Insights from SXAS/XPS experiments and first-principles calculations and implications for regolith-hosted HREE deposits
  21. Atomic Cluster Outperforms Single Atom in Hydrogen Evolution and Hydrazine Oxidation for Energy‐Efficient Water Splitting
  22. Proof of Uranyl Deposition in Unconformity-Related Uranium Deposits, Athabasca Basin, Canada: Evidence from Synchrotron XAS and XPS Analyses of Hematite
  23. Regulating interfacial reactions through electrolyte chemistry enables an anion-rich interphase for wide-temperature zinc metal batteries
  24. Surface amorphization advances activity and stability for acidic oxygen evolution
  25. Superionic conducting vacancy-rich β-Li3N electrolyte for stable cycling of all-solid-state lithium metal batteries
  26. Evolution of Frustrated Coordination in Eutectic Electrolyte Driven by Ligand Asymmetry toward High‐Performance Zinc Batteries
  27. Thorium speciation in titania slag: Implications for environmental remediation and valorisation
  28. Synchrotron-aided exploration of REE recovery from coal fly ashes within a Canadian context
  29. Integrated “Two‐in‐One” Strategy for High‐Rate Electrocatalytic CO2 Reduction to Formate
  30. Integrated “Two‐in‐One” Strategy for High‐Rate Electrocatalytic CO2 Reduction to Formate
  31. Uranium mineralization in the Thrace Basin, NW Türkiye: Evidence from radiation-induced defects in detrital quartz and synchrotron XRF/XANES analysis
  32. Ni3C/Ni3S2 Heterojunction Electrocatalyst for Efficient Methanol Oxidation via Dual Anion Co‐modulation Strategy
  33. Conductive Zeolite Supported Indium–Tin Alloy Nanoclusters for Selective and Scalable Formic Acid Electrosynthesis
  34. Accelerated Discovery of (TiZrHf)x(NbTa)1−x High‐Entropy Alloys With Superior Thermal Stability and a New Crystallization Mechanism
  35. Cu‐In Dual Sites with Sulfur Defects toward Superior Ethanol Electrosynthesis from CO2 Electrolysis
  36. Molybdenum-Oxysulfide-Functionalized MgAl-Layered Double Hydroxides─A Sorbent for Selenium Oxoanions
  37. Direct Methanol Fuel Cell with Porous Carbon-Supported PtRu Single-Atom Catalysts for Coproduction of Electricity and Value-Added Formate
  38. Retrieving images from tarnished daguerreotypes using X-ray fluorescence imaging with an X-ray micro beam with tunable energy
  39. Analysis of microscopy techniques to measure segregation in continuous‐cast steel slabs
  40. Mo3S13 Chalcogel: A High‐Capacity Electrode for Conversion‐Based Li‐Ion Batteries
  41. Self‐Powered System for H2 Production and Biomass Upgrading
  42. Ru-RuO2 nano-heterostructures stabilized by the sacrificing oxidation strategy of Mn3O4 substrate for boosting acidic oxygen evolution reaction
  43. Amorphous K–Co–Mo–Sx Chalcogel: A Synergy of Surface Sorption and Ion‐Exchange
  44. A new assessment method for water environment safety and its application
  45. Prediction and countermeasures of heavy metal copper pollution accident in the Three Gorges Reservoir Area
  46. Selective and Scalable CO2 Electrolysis Enabled by Conductive Zinc Ion-Implanted Zeolite-Supported Cadmium Oxide Nanoclusters
  47. Development of an antimicrobial and antifouling PES membrane with ZnO/poly(hexamethylene biguanide) nanocomposites incorporation
  48. Competitive Coordination Structure Regulation in Deep Eutectic Electrolyte for Stable Zinc Batteries
  49. Interfacial Electronic Modulation of Dual-Monodispersed Pt–Ni3S2 as Efficacious Bi-Functional Electrocatalysts for Concurrent H2 Evolution and Methanol Selective Oxidation
  50. Thorium speciation in ilmenite concentrates from the Mandena deposit, Madagascar: Implications for environmental remediation and thorium beneficiation
  51. Optimizing Bi active sites by Ce doping for boosting formate production in a wide potential window
  52. Superhalide structure and iodide-proof interphase via electrolyte regulation enable ultrastable zinc-iodine batteries
  53. Precise Tailoring of Lithium‐Ion Transport for Ultralong‐Cycling Dendrite‐Free All‐Solid‐State Lithium Metal Batteries
  54. Longevous Cycling of Rechargeable Zn‐Air Battery Enabled by “Raisin‐Bread” Cobalt Oxynitride/Porous Carbon Hybrid Electrocatalysts
  55. Amino-doping regulates the surface of nickel-based catalysts to promote the formation of the real active states
  56. Construction of desolvated ionic COF artificial SEI layer stabilized Zn metal anode by in-situ electrophoretic deposition
  57. Phase formability and nanomechanical properties in nanostructured multi-principal element alloys: Combinatorial and data-driven studies
  58. Unveiling phase-selective α- and β-Bi2O3-derived electrocatalysts for CO2 electroreduction
  59. Chalcocarbogels as High-Capacity and Cycle-Stable Electrode Materials for Lithium and Sodium Ion Batteries
  60. Porous Semiconducting K–Sn–Mo–S Aerogel: Synthesis, Local Structure, and Ion-Exchange Properties
  61. Polysulfide regulation by defect-modulated Ta3N electrocatalyst toward superior room-temperature sodium-sulfur batteries
  62. Front Cover: Exploring the Synergistic Effects of Dual‐Layer Electrodes for High Power Li‐Ion Batteries (ChemElectroChem 21/2023)
  63. Lithium-compatible and air-stable vacancy-rich Li 9 N 2 Cl 3 for high–areal capacity, long-cycling all–solid-state lithium metal batteries
  64. Recyclable sericin/nanocellulose aerogel with high adsorption capacity for tetrabromobisphenol A in water: Insight from DFT calculations
  65. Exploring the Synergistic Effects of Dual‐Layer Electrodes for High Power Li‐Ion Batteries
  66. Bioinspired and dual-functional nanocellulose aerogels for water disinfection and heavy metal removal
  67. In situ self-heterogenization of Cu2S/CuS nanostructures with modulated d band centers for promoting photocatalytic degradation and hydrogen evolution performances
  68. Crystallization Engineering of CuNi2S4 Ultra‐Fine Nanocrystals with Optimized Band Structures for Efficient Photocatalytic Pollutant Degradation and Hydrogen Production
  69. Heterogeneous electro-Fenton catalytic FeOCl@NCNT/ceramic membrane filtration for in-situ membrane fouling control: Performance and mechanism
  70. A family of oxychloride amorphous solid electrolytes for long-cycling all-solid-state lithium batteries
  71. Taming Zn Electrochemistry with Carbon Nitride: Atomically Gradient Interphase for Highly Reversible Aqueous Zn Batteries
  72. Phase Transition Engineering of Host Perovskite toward Optimal Exsolution‐facilitated Catalysts for Carbon Dioxide Electrolysis
  73. Nanosecond Laser Confined Bismuth Moiety with Tunable Structures on Graphene for Carbon Dioxide Reduction
  74. Spatial variations in fluid composition along structures hosting unconformity-related uranium deposits in the Athabasca Basin, Canada: implications for ore-controlling factors
  75. A coupled electrocatalytic system with reduced energy input for CO2 reduction and biomass valorization
  76. Multifunctional PVDF Membrane Coated with ZnO-Ag Nanocomposites for Wastewater Treatment and Fouling Mitigation: Factorial and Mechanism Analyses
  77. Water induced ultrathin Mo2C nanosheets with high-density grain boundaries for enhanced hydrogen evolution
  78. Regulation of Outer Solvation Shell Toward Superior Low‐Temperature Aqueous Zinc‐Ion Batteries
  79. Thorium speciation in synthetic anhydrite: Implications for remediation and recovery of thorium from rare-earth mine tailings
  80. Self-repairing interphase reconstructed in each cycle for highly reversible aqueous zinc batteries
  81. Photocatalytic disinfection for point-of-use water treatment using Ti3+ self-doping TiO2 nanoparticle decorated ceramic disk filter
  82. Boosting the stability of perovskites with exsolved nanoparticles by B-site supplement mechanism
  83. Functional flax fiber with UV-induced switchable wettability for multipurpose oil-water separation
  84. Anode-cathode interchangeable strategy for in situ reviving electrocatalysts’ critical active sites for highly stable methanol upgrading and hydrogen evolution reactions
  85. Nature of fretting corrosion products in CoCrMo hip implants from in vivo study to in vitro simulation
  86. Integrating Nanoreactor with O–Nb–C Heterointerface Design and Defects Engineering Toward High‐Efficiency and Longevous Sodium Ion Battery
  87. Directionally maximizing CO selectivity to near-unity over cupric oxide with indium species for electrochemical CO2 reduction
  88. Superwetting polyethersulfone membrane functionalized with ZrO2 nanoparticles for polycyclic aromatic hydrocarbon removal
  89. Nanocellulose enhances the dispersion and toxicity of ZnO NPs to green algae Eremosphaera viridis
  90. Less‐Energy Consumed Hydrogen Evolution Coupled with Electrocatalytic Removal of Ethanolamine Pollutant in Saline Water over Ni@Ni3S2/CNT Nano‐Heterostructured Electrocatalysts
  91. Regulating the Electron Localization of Metallic Bismuth for Boosting CO2 Electroreduction
  92. Accelerating photoelectric CO2 conversion with a photothermal wavelength-dependent plasmonic local field
  93. Wear and corrosion characteristics of nano-crystalline tantalum nitride coatings deposited on CoCrMo alloy for hip joint applications
  94. New Insights into the High‐Performance Black Phosphorus Anode for Lithium‐Ion Batteries
  95. Electronic Delocalization of Bismuth Oxide Induced by Sulfur Doping for Efficient CO2 Electroreduction to Formate
  96. Interfacial engineering of Cu2Se/Co3Se4 multivalent hetero-nanocrystals for energy-efficient electrocatalytic co-generation of value-added chemicals and hydrogen
  97. Self-assembled single crystal VO2 (A) microbelts by the reduction of V2O5 thin films: synthesis, structure and optical properties
  98. Exploration of nanocellulose washing agent for the green remediation of phenanthrene-contaminated soil
  99. CO2-emission-free electrocatalytic CH3OH selective upgrading with high productivity at large current densities for energy saved hydrogen co-generation
  100. An Air‐Stable and Li‐Metal‐Compatible Glass‐Ceramic Electrolyte enabling High‐Performance All‐Solid‐State Li Metal Batteries
  101. Constructing multifunctional solid electrolyte interface via in-situ polymerization for dendrite-free and low N/P ratio lithium metal batteries
  102. Uranyl binding mechanism in microcrystalline silicas: A potential missing link for uranium mineralization by direct uranyl co-precipitation and environmental implications
  103. Microbial response to copper oxide nanoparticles in soils is controlled by land use rather than copper fate
  104. Hollow NiSe Nanocrystals Heterogenized with Carbon Nanotubes for Efficient Electrocatalytic Methanol Upgrading to Boost Hydrogen Co‐Production
  105. Low-cost microbiological purification using a new ceramic disk filter functionalized by chitosan/TiO2 nanocomposites
  106. Exploring the Dzi Bead with Synchrotron Light: XRD, XRF Imaging and μ-XANES Analysis
  107. Unraveling the Origin of Moisture Stability of Halide Solid-State Electrolytes by In Situ and Operando Synchrotron X-ray Analytical Techniques
  108. Tensile-strained ruthenium phosphide by anion substitution for highly active and durable hydrogen evolution
  109. Functional PVDF ultrafiltration membrane for Tetrabromobisphenol-A (TBBPA) removal with high water recovery
  110. Operando Tracking of Solution-Phase Concentration Profiles in Li-Ion Battery Positive Electrodes Using X-ray Fluorescence
  111. O-coordinated W-Mo dual-atom catalyst for pH-universal electrocatalytic hydrogen evolution
  112. Size, composition and alignment of VO2 microrod crystals by the reduction of V2O5 thin films, and their optical properties through insulator-metal transitions
  113. Co- and N-doped carbon nanotubes with hierarchical pores derived from metal-organic nanotubes for oxygen reduction reaction
  114. Use of Nano-TiO2 self-assembled flax fiber as a new initiative for immiscible oil/water separation
  115. Sequestration of Selenite and Selenate in Gypsum (CaSO4·2H2O): Insights from the Single-Crystal Electron Paramagnetic Resonance Spectroscopy and Synchrotron X-ray Absorption Spectroscopy Study
  116. Experimental variation in the spatial deposition of trace metals in feathers revealed using synchrotron X‐ray fluorescence
  117. Novel folic acid complex derived nitrogen and nickel co-doped carbon nanotubes with embedded Ni nanoparticles as efficient electrocatalysts for CO2 reduction
  118. Exploring the use of ceramic disk filter coated with Ag/ZnO nanocomposites as an innovative approach for removing Escherichia coli from household drinking water
  119. Colloidal transport mechanisms and sequestration of U, Ni, and As in meromictic mine pit lakes
  120. Interactive Toxicity of Triclosan and Nano-TiO2 to Green Alga Eremosphaera viridis in Lake Erie: A New Perspective Based on Fourier Transform Infrared Spectromicroscopy and Synchrotron-Based X-ray Fluorescence Imaging
  121. Plasma-induced PAA-ZnO coated PVDF membrane for oily wastewater treatment: Preparation, optimization, and characterization through Taguchi OA design and synchrotron-based X-ray analysis
  122. Porous iron material for TcO4- and ReO4- sequestration from groundwater under ambient oxic conditions
  123. Plasma-induced Poly(Acrylic Acid)-TiO2 coated polyvinylidene fluoride membrane for produced water treatment: Synchrotron X-Ray, optimization, and insight studies
  124. FCC tantalum thin films deposited by magnetron sputtering
  125. Applications of Synchrotron X-Ray Techniques to Orogenic Gold Studies; Examples from the Timmins Gold Camp
  126. Evaluating Synchrotron-Based Scanning Laue Microdiffraction for Mineralogy Mapping in Heterogeneous Samples
  127. Bulk-sensitive imaging of twin domains in La2−xSrxCuO4under uniaxial pressure
  128. Distribution and speciation of zinc in the gills of rainbow trout ( Oncorhynchus mykiss ) during acute waterborne zinc exposure: Interactions with cadmium or copper
  129. Accumulation of persistent tungsten in bone as in situ generated polytungstate
  130. Uptake and speciation of uranium in synthetic gypsum (CaSO 4 •2H 2 O): Applications to radioactive mine tailings
  131. Identifying optimal clean-production pattern for energy systems under uncertainty through introducing carbon emission trading and green certificate schemes
  132. Promoting Effect of Ni(OH)2 on Palladium Nanocrystals Leads to Greatly Improved Operation Durability for Electrocatalytic Ethanol Oxidation in Alkaline Solution
  133. Site Energy Distribution and X-ray Analyses of Nickel Loaded on Heterogeneous Adsorbents
  134. Optimization of L-shell X-ray fluorescence detection of lead in bone phantoms using synchrotron radiation
  135. Identifying water resources management strategies in adaptation to climate change under uncertainty
  136. Electron Probe Microanalysis of Bromine in Minerals and Glasses with Correction for Spectral Interference from Aluminium, and Comparison with Microbeam Synchrotron X-Ray Fluorescence Spectrometry
  137. Insights into Biochemical Alteration in Cancer-Associated Fibroblasts by using Novel Correlative Spectroscopy
  138. Influence of Al content on diamond nucleation and growth on Fe-Al alloys in CH 4 -H 2 plasma atmosphere
  139. Ultrasmall and phase-pure W2C nanoparticles for efficient electrocatalytic and photoelectrochemical hydrogen evolution
  140. Chemical and Structural Information from the Enamel of a Troodon Tooth Leading to an Understanding of Diet and Environment
  141. Synchrotron based high throughput screening method for mineral analysis in cereal and pulse grains meal
  142. Effects of Dolomitic Limestone Application on Zinc Speciation in Boreal Forest Smelter-Contaminated Soils
  143. New insights into fretting corrosion products from modular total hip replacement revision
  144. Characterizing Zinc Speciation in Soils from a Smelter-Affected Boreal Forest Ecosystem
  145. Plasma enhanced chemical vapor deposition of diamond coatings on Cu–W and Cu–WC composites
  146. Characterization of local strain/stress in copper through-silicon via structures using synchrotron x-ray microdiffraction, electron backscattered diffraction and nonlinear thermomechanical model
  147. Enhancement of the Stability of Biosorbents for Metal-Ion Adsorption
  148. Particle Size Effect on Load Transfer in Single Particle Composite Samples via X-Ray Diffraction
  149. Competitive graphitization and diamond growth on hot-dip aluminized carbon steel substrate
  150. Enhanced diamond deposition on Kovar alloy substrate with Al interlayer
  151. Intestinal Microparticles and Inflammatory Bowel Diseases
  152. Photoluminescence and X-Ray Excited Luminescence from Glutathione-Stabilized Gold Nanoparticles
  153. Luminescence enhancement in LaPO4:Ce/CdTe nanocomposite scintillators
  154. Single-event transient measurement on a DC/DC PWM controller using Pulsed X-ray technique
  155. Detecting Microparticles in Human Intestine with Synchrotron Based X-Ray Beamline
  156. Structural study of Bi2Sr2CaCu2O8+δ exfoliated nanocrystals
  157. Element localization in archaeological bone using synchrotron radiation X-ray fluorescence: identification of biogenic uptake
  158. CVD nanocrystalline diamond coatings on Ti alloy: A synchrotron-assisted interfacial investigation
  159. Adherent nanocrystalline diamond coatings deposited on Ti substrate at moderate temperatures
  160. ARSENIC INCORPORATION IN COLEMANITE FROM BORATE DEPOSITS: DATA FROM ICP-MS,  -SXRF, XAFS AND EPR ANALYSES
  161. Internal oxidation and phase transformations of multi-phase Fe–Ni–Al and Fe–Ni–Al–Cr alloys induced by KCl corrosion
  162. X-Ray fluorescence spectroscopy and mapping using excitation from white and broad bandpass synchrotron radiation
  163. Commissioning of the VESPERS Beamline at the Canadian Light Source
  164. Multilayers and crystal for a multi-bandpass monochromator
  165. Dose rate estimates due to gas bremsstrahlung for a photon shutter and collimator unit of the VESPERS beamline at the Canadian Light Source
  166. VESPERS: A Beamline for Combined XRF and XRD Measurements
  167. Ionic photofragmentation of SO2 in the sulfur 2p and 2s regions
  168. Photofragmentation of SO following photoexcitation near the sulfur L ionization thresholds
  169. Photofragmentation study of core-excited NO
  170. An X-ray and electron microprobe study of Fe, Ni, Ga, and Ge distribution and local structure in a section of the Canyon Diablo iron meteorite
  171. Quantitative photoabsorption of methyl propyl ether in the UV, VUV and soft X-ray regions (5–200 eV)
  172. Quantitative photoabsorption of diethyl ether in the valence and carbon 1s inner shell regions (5–360 eV)
  173. Absolute photoabsorption cross-sections (oscillator strengths) for ethanol (5–200 eV)
  174. Dipole (e,e) spectroscopic studies of benzene: quantitative photoabsorption in the UV, VUV and soft X-ray regions
  175. Dipole (e,e+ion) spectroscopic studies of benzene: absolute oscillator strengths for molecular and dissociative photoionization in the VUV and soft X-ray regions
  176. Measurement of absolute dipole oscillator strengths for pyridine: photoabsorption and the molecular and dissociative photoionization in the valence shell (4–200 eV)
  177. Ionic photofragmentation and photoionization of dimethyl ether in the VUV and soft X-ray regions (8.5–80 eV) – absolute oscillator strengths for molecular and dissociative photoionization
  178. Orbital imaging for the valence shell of sulphur dioxide: comparison of EMS measurements with near Hartree–Fock limit and density functional theory
  179. UV, VUV and soft X-ray photoabsorption of dimethyl ether by dipole (e,e) spectroscopies
  180. Dipole (e,e+ ion) coincidence studies of the ionic photofragmentation and photoionization of carbonyl sulfide in the valence shell and S 2p, 2s and C 1s inner shell regions (10–300 eV)
  181. Electron-impact studies for dipole oscillator strengths and elastic electron-scattering differential cross sections of mercury vapour
  182. Quantitative studies of the photoabsorption of carbonyl sulphide in the valence-shell, S 2p,2s and C 1s inner-shell regions (4–360 eV) by dipole electron impact spectroscopies
  183. Optical Oscillator Strengths for 32S→ 42Pand 32S→ 52PExcitations of Na
  184. Absolute oscillator strengths for hydrogen sulphide
  185. Absolute generalized oscillator strength distributions for the continuum region of helium
  186. Experimental and theoretical study of photoabsorption spectra of molecular hydrogen in the energy region 11–19 eV
  187. Absolute oscillator strengths for hydrogen sulphide:
  188. Absolute photoabsorption oscillator strengths by electron energy loss methods: the valence and S 2p and 2s inner shells of sulphur dioxide in the discrete and continuum regions (3.5–260 eV)
  189. Elastic differential cross sections of 1500 eV electron scattering from helium
  190. Electron-impact study for the and (n= 3 - 6) excitations in helium
  191. High-resolution dipole (de, de) study for optical oscillator strengths of valence shell excitation of nitrogen
  192. Electron-impact study in the valence and autoionization resonance regions of neon
  193. Absolute generalized oscillator strengths for the vibronic bands ofA1Π,B1Σ+,C1Σ+, andE1Π transitions of carbon monoxide
  194. Absolute generalized oscillator strengths of 4s, 4s′, 4p+4p′ excitations of argon determined by the angle-resolved electron-energy-loss spectrometer
  195. Absolute generalized oscillator strengths of 21Sand 21Pexcitations of helium measured by angle-resolved electron-energy-loss spectroscopy
  196. Electron-impact study in valence and autoionization resonance regions of argon
  197. Absolute total-cross-section measurements for intermediate-energy electron scattering onC2H2and CO