diff --git a/Tests/Data/TH2M/H/diffusion/diffusion.ipynb b/Tests/Data/TH2M/H/diffusion/diffusion.ipynb
index e87613d3d137f2e6dfad73a764302b4ea7795a18..be92c1d74c3dc5498e96464c29920bffe9610287 100644
--- a/Tests/Data/TH2M/H/diffusion/diffusion.ipynb
+++ b/Tests/Data/TH2M/H/diffusion/diffusion.ipynb
@@ -5,12 +5,13 @@
    "id": "94e3d277",
    "metadata": {},
    "source": [
-    "title = \"Solute Diffusion\"\n",
+    "title = \"Gas Diffusion\"\n",
     "date = \"2022-10-19\"\n",
     "author = \"Norbert Grunwald\"\n",
     "notebook = \"TH2M/H2/diffusion/diffusion.ipynb\"\n",
-    "image = \"\"\n",
+    "image = \"figures/placeholder_diffusion.png\"\n",
     "web_subsection = \"th2m\"\n",
+    "coupling = \"h\"\n",
     "<!--eofm-->"
    ]
   },
@@ -340,7 +341,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": ".venv",
    "language": "python",
    "name": "python3"
   },
@@ -354,7 +355,12 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.10"
+   "version": "3.10.8 (main, Oct 13 2022, 09:48:40) [Clang 14.0.0 (clang-1400.0.29.102)]"
+  },
+  "vscode": {
+   "interpreter": {
+    "hash": "4a8f0e927bf0755adf2843cdf6d680af97f8f4935bcd7ee3569251fe70cb6ce8"
+   }
   }
  },
  "nbformat": 4,
diff --git a/web/content/docs/benchmarks/th2m/th2m_1d-diffusion/placeholder_diffusion.png b/Tests/Data/TH2M/H/diffusion/figures/placeholder_diffusion.png
similarity index 100%
rename from web/content/docs/benchmarks/th2m/th2m_1d-diffusion/placeholder_diffusion.png
rename to Tests/Data/TH2M/H/diffusion/figures/placeholder_diffusion.png
diff --git a/web/content/docs/benchmarks/th2m/th2m_1d-diffusion/index.md b/web/content/docs/benchmarks/th2m/th2m_1d-diffusion/index.md
deleted file mode 100644
index 065031c0bc1876216b953180ab33fa5b1761741e..0000000000000000000000000000000000000000
--- a/web/content/docs/benchmarks/th2m/th2m_1d-diffusion/index.md
+++ /dev/null
@@ -1,15 +0,0 @@
-+++
-author = "Norbert Grunwald"
-date = "2018-06-20T14:37:58+01:00"
-title = "Gas Diffusion"
-image = "placeholder_diffusion.png"
-coupling = "h"
-+++
-
-{{< data-link >}}
-
-## Problem description
-
-Todo
-
-## Results and evaluation
diff --git a/web/content/docs/benchmarks/th2m/th2m_1d-diffusion/test.png b/web/content/docs/benchmarks/th2m/th2m_1d-diffusion/test.png
deleted file mode 100644
index e9bb15a6311a56e76c3e7c31a5cddd912146b290..0000000000000000000000000000000000000000
Binary files a/web/content/docs/benchmarks/th2m/th2m_1d-diffusion/test.png and /dev/null differ