diff --git a/methane/Zhoa_2024_Methane_phi_0.05.yml b/methane/Zhoa_2024_Methane_phi_0.05.yml
new file mode 100644
index 000000000..f73c6c764
--- /dev/null
+++ b/methane/Zhoa_2024_Methane_phi_0.05.yml
@@ -0,0 +1,154 @@
+---
+file-authors:
+  - name: Ivette Alonso Garcia
+    ORCID: 0009-0007-4064-7836
+file-version: 0
+chemked-version: 0.4.1
+reference:
+  doi: 10.1016/j.heliyon.2024.e34204 
+  authors:
+    - name: Ziwen Zhao
+    - name: Yeteng Wang
+    - name: Jinchao Zhang
+    - name: Junhu Liang
+    - name: Yang Zhang
+    - name: Fengqi Zhao
+    - name: Quan-De Wang
+  journal: Heliyon - A Cell Press journal 
+  year: 2024
+  volume: 10
+  pages: e34204
+  detail: This is an experimental and kinetic simulation study on the autoignition of methane at ultra-lean and lean conditions relevant to coalbed methane utilization.
+experiment-type: ignition delay
+apparatus:
+  kind: shock tube
+  institution: School of Environmental and Safety Engineering, North University of China, Taiyuan, PR China
+common-properties:
+  composition: &comp
+    kind: mole fraction
+    species:
+      - species-name: methane
+        InChI: 1S/CH4/h1H4
+        amount:
+          - 0.00522
+      - species-name: oxygen 
+        InChI: 1S/O2/c1-2
+        amount:
+          - 0.2089
+     - species-name: nitrogen
+        InChI: 1S/N2/c1-2
+        amount:
+          - 0.78588
+  ignition-type: &ign
+    target: pressure; OH*
+    type: d/dt max 
+datapoints:
+  - temperature:
+      - 1356.1 kelvin
+    ignition-delay:
+      - 760 us
+    pressure:
+      - 10.111 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.05
+  - temperature:
+      - 1403.5 kelvin
+    ignition-delay:
+      - 444 us
+    pressure:
+      - 10.045 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.05
+  - temperature:
+      - 1442 kelvin
+    ignition-delay:
+      - 304 us
+    pressure:
+      - 10.562 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.05
+  - temperature:
+      - 1477.2 kelvin
+    ignition-delay:
+      - 254 us
+    pressure:
+      - 9.96 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.05
+  - temperature:
+      - 1546.8 kelvin
+    ignition-delay:
+      - 158 us
+    pressure:
+      - 10.08 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.05
+  - temperature:
+      - 1621.1 kelvin
+    ignition-delay:
+      - 97 us
+    pressure:
+      - 10.237 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.05
+  - temperature:
+      - 1682.2 kelvin
+    ignition-delay:
+      - 72 us
+    pressure:
+      - 10.22 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.05
+  - temperature:
+      - 1755.6 kelvin
+    ignition-delay:
+      - 53 us
+    pressure:
+      - 10.055 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.05
+  - temperature:
+      - 1601 kelvin
+    ignition-delay:
+      - 220 us
+    pressure:
+      - 1.959 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.05
+  - temperature:
+      - 1691 kelvin
+    ignition-delay:
+      - 153 us
+    pressure:
+      - 1.981 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.05
+ - temperature:
+      - 1759.7 kelvin
+    ignition-delay:
+      - 112 us
+    pressure:
+      - 2.019 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.05
+  - temperature:
+      - 1842.1 kelvin
+    ignition-delay:
+      - 71 us
+    pressure:
+      - 1.986 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.05
+....
diff --git a/methane/Zhoa_2024_Methane_phi_0.5.yml b/methane/Zhoa_2024_Methane_phi_0.5.yml
new file mode 100644
index 000000000..edbd80ad7
--- /dev/null
+++ b/methane/Zhoa_2024_Methane_phi_0.5.yml
@@ -0,0 +1,208 @@
+---
+file-authors:
+  - name: Ivette Alonso Garcia
+    ORCID: 0009-0007-4064-7836 
+file-version: 0
+chemked-version: 0.4.1
+reference:
+  doi: 10.1016/j.heliyon.2024.e34204 
+  authors:
+    - name: Ziwen Zhao
+    - name: Yeteng Wang
+    - name: Jinchao Zhang
+    - name: Junhu Liang
+    - name: Yang Zhang
+    - name: Fengqi Zhao
+    - name: Quan-De Wang
+  journal: Heliyon - A Cell Press journal
+  year: 2024
+  volume: 10
+  pages: e34204
+  detail: This is an experimental and kinetic simulation study on the autoignition of methane at ultra-lean and lean conditions relevant to coalbed methane utilization.
+experiment-type: ignition delay
+apparatus:
+  kind: shock tube
+  institution: School of Environmental and Safety Engineering, North University of China, Taiyuan, PR China
+common-properties:
+  composition: &comp
+    kind: mole fraction
+    species:
+      - species-name: methane
+        InChI: 1S/CH4/h1H4
+        amount:
+          - 0.05
+      - species-name: oxygen 
+        InChI: 1S/O2/c1-2
+        amount:
+          - 0.2
+     - species-name: nitrogen
+        InChI: 1S/N2/c1-2
+        amount:
+          - 0.75
+  ignition-type: &ign
+    target: Pressure
+    type: d/dt max
+datapoints:
+  - temperature:
+      - 1340.7 kelvin
+    ignition-delay:
+      - 1109 us
+    pressure:
+      - 9.718 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.5
+  - temperature:
+      - 1381.5 kelvin
+    ignition-delay:
+      - 743 us
+    pressure:
+      - 9.748 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.5
+  - temperature:
+      - 1430.4 kelvin
+    ignition-delay:
+      - 488 us
+    pressure:
+      - 10.028 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.5
+  - temperature:
+      - 1472.1 kelvin
+    ignition-delay:
+      - 360 us
+    pressure:
+      - 9.9 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.5
+  - temperature:
+      - 1488.8 kelvin
+    ignition-delay:
+      - 310 us
+    pressure:
+      - 9.86 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.5
+  - temperature:
+      - 1534.5 kelvin
+    ignition-delay:
+      - 203 us
+    pressure:
+      - 9.813 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.5
+  - temperature:
+      - 1578.5 kelvin
+    ignition-delay:
+      - 145 us
+    pressure:
+      - 10.34 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.5
+  - temperature:
+      - 1630.7 kelvin
+    ignition-delay:
+      - 104 us
+    pressure:
+      - 10.35 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.5
+  - temperature:
+      - 1712.1 kelvin
+    ignition-delay:
+      - 66 us
+    pressure:
+      - 10.13 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.5
+  - temperature:
+      - 1734.9 kelvin
+    ignition-delay:
+      - 58 us
+    pressure:
+      - 9.74 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.5
+ - temperature:
+      - 1395.9 kelvin
+    ignition-delay:
+      - 1800 us
+    pressure:
+      - 1.989 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.5
+  - temperature:
+      - 1467.2 kelvin
+    ignition-delay:
+      - 920 us
+    pressure:
+      - 1.919 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.5
+  - temperature:
+      - 1543.2 kelvin
+    ignition-delay:
+      - 596 us
+    pressure:
+      - 1.984 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.5
+  - temperature:
+      - 1601.1 kelvin
+    ignition-delay:
+      - 398 us
+    pressure:
+      - 2.002 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.5
+  - temperature:
+      - 1699.9 kelvin
+    ignition-delay:
+      - 249 us
+    pressure:
+      - 2 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.5
+- temperature:
+      - 1774.3 kelvin
+    ignition-delay:
+      - 162 us
+    pressure:
+      - 1.949 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.5
+  - temperature:
+      - 1853.3 kelvin
+    ignition-delay:
+      - 117 us
+    pressure:
+      - 1.981 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.5
+  - temperature:
+      - 1904.8 kelvin
+    ignition-delay:
+      - 100 us
+    pressure:
+      - 2.009 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 0.5
+...
diff --git a/methane/Zhoa_2024_Methane_phi_1.0.yml b/methane/Zhoa_2024_Methane_phi_1.0.yml
new file mode 100644
index 000000000..49c635da5
--- /dev/null
+++ b/methane/Zhoa_2024_Methane_phi_1.0.yml
@@ -0,0 +1,199 @@
+---
+file-authors:
+  - name: Ivette Alonso Garcia
+    ORCID: 0009-0007-4064-7836
+file-version: 0
+chemked-version: 0.4.1
+reference:
+  doi: 10.1016/j.heliyon.2024.e34204 
+  authors:
+    - name: Ziwen Zhao
+    - name: Yeteng Wang
+    - name: Jinchao Zhang
+    - name: Junhu Liang
+    - name: Yang Zhang
+    - name: Fengqi Zhao
+    - name: Quan-De Wang
+  journal: Heliyon - A Cell Press journal
+  year: 2024
+  volume: 10
+  pages: e34204
+  detail: This is an experimental and kinetic simulation study on the autoignition of methane at ultra-lean and lean conditions relevant to coalbed methane utilization.
+experiment-type: ignition delay
+apparatus:
+  kind: shock tube
+  institution: School of Environmental and Safety Engineering, North University of China, Taiyuan, PR China
+common-properties:
+  composition: &comp
+    kind: mole fraction
+    species:
+      - species-name: methane
+        InChI: 1S/CH4/h1H4
+        amount:
+          - 0.01039
+      - species-name: oxygen 
+        InChI: 1S/O2/c1-2
+        amount:
+          - 0.20782
+     - species-name: nitrogen
+        InChI: 1S/N2/c1-2
+        amount:
+          - 0.78179
+  ignition-type: &ign
+    target: Pressure
+    type: d/dt max
+datapoints:
+  - temperature:
+      - 1331.4 kelvin
+    ignition-delay:
+      - 962 us
+    pressure:
+      - 10.519 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 1.0
+  - temperature:
+      - 1355.7 kelvin
+    ignition-delay:
+      - 647 us
+    pressure:
+      - 10.078 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 1.0
+  - temperature:
+      - 1382.1 kelvin
+    ignition-delay:
+      - 530 us
+    pressure:
+      - 9.759 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 1.0
+  - temperature:
+      - 1447.9 kelvin
+    ignition-delay:
+      - 330 us
+    pressure:
+      - 9.724 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 1.0
+  - temperature:
+      - 1521.4 kelvin
+    ignition-delay:
+      - 180 us
+    pressure:
+      - 10.262 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 1.0
+  - temperature:
+      - 1558.8 kelvin
+    ignition-delay:
+      - 143 us
+    pressure:
+      - 10.102 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 1.0
+  - temperature:
+      - 1613.9 kelvin
+    ignition-delay:
+      - 105 us
+    pressure:
+      - 10.155 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 1.0
+  - temperature:
+      - 1664.3 kelvin
+    ignition-delay:
+      - 85 us
+    pressure:
+      - 10.728 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 1.0
+  - temperature:
+      - 1696.6 kelvin
+    ignition-delay:
+      - 72 us
+    pressure:
+      - 9.964 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 1.0
+  - temperature:
+      - 1393.1 kelvin
+    ignition-delay:
+      - 919 us
+    pressure:
+      - 1.982 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 1.0
+ - temperature:
+      - 1439.7 kelvin
+    ignition-delay:
+      - 670 us
+    pressure:
+      - 1.99 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 1.0
+  - temperature:
+      - 1515.6 kelvin
+    ignition-delay:
+      - 40 us
+    pressure:
+      - 2.011 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 1.0
+  - temperature:
+      - 1565.8 kelvin
+    ignition-delay:
+      - 265 us
+    pressure:
+      - 2.038 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 1.0
+  - temperature:
+      - 1620.8 kelvin
+    ignition-delay:
+      - 187 us
+    pressure:
+      - 2.048 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 1.0
+  - temperature:
+      - 1645.1 kelvin
+    ignition-delay:
+      - 167 us
+    pressure:
+      - 1.888 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 1.0
+- temperature:
+      - 1753.5 kelvin
+    ignition-delay:
+      - 104 us
+    pressure:
+      - 2.048 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 1.0
+  - temperature:
+      - 1824.5 kelvin
+    ignition-delay:
+      - 70 us
+    pressure:
+      - 1.954 bar
+    composition: *comp
+    ignition-type: *ign
+    equivalence-ratio: 1.0
+...