diff --git a/Documentation/ProjectFile/materials/adsorption/c_adsorption.md b/Documentation/ProjectFile/materials/adsorption/c_adsorption.md
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/Documentation/ProjectFile/materials/adsorption/reaction/CaOH2/c_CaOH2.md b/Documentation/ProjectFile/materials/adsorption/reaction/CaOH2/c_CaOH2.md
new file mode 100644
index 0000000000000000000000000000000000000000..bbf877d784159e752987c7cd00e4f6590d864bf7
--- /dev/null
+++ b/Documentation/ProjectFile/materials/adsorption/reaction/CaOH2/c_CaOH2.md
@@ -0,0 +1 @@
+\todo document
diff --git a/Documentation/ProjectFile/materials/adsorption/reaction/CaOH2/t_ode_solver_config.md b/Documentation/ProjectFile/materials/adsorption/reaction/CaOH2/t_ode_solver_config.md
new file mode 100644
index 0000000000000000000000000000000000000000..bbf877d784159e752987c7cd00e4f6590d864bf7
--- /dev/null
+++ b/Documentation/ProjectFile/materials/adsorption/reaction/CaOH2/t_ode_solver_config.md
@@ -0,0 +1 @@
+\todo document
diff --git a/Documentation/ProjectFile/materials/adsorption/reaction/Sinusoidal/c_Sinusoidal.md b/Documentation/ProjectFile/materials/adsorption/reaction/Sinusoidal/c_Sinusoidal.md
new file mode 100644
index 0000000000000000000000000000000000000000..bbf877d784159e752987c7cd00e4f6590d864bf7
--- /dev/null
+++ b/Documentation/ProjectFile/materials/adsorption/reaction/Sinusoidal/c_Sinusoidal.md
@@ -0,0 +1 @@
+\todo document
diff --git a/Documentation/ProjectFile/materials/adsorption/reaction/Sinusoidal/t_reaction_enthalpy.md b/Documentation/ProjectFile/materials/adsorption/reaction/Sinusoidal/t_reaction_enthalpy.md
new file mode 100644
index 0000000000000000000000000000000000000000..bbf877d784159e752987c7cd00e4f6590d864bf7
--- /dev/null
+++ b/Documentation/ProjectFile/materials/adsorption/reaction/Sinusoidal/t_reaction_enthalpy.md
@@ -0,0 +1 @@
+\todo document
diff --git a/Documentation/ProjectFile/materials/adsorption/reaction/i_reaction.md b/Documentation/ProjectFile/materials/adsorption/reaction/i_reaction.md
new file mode 100644
index 0000000000000000000000000000000000000000..bbf877d784159e752987c7cd00e4f6590d864bf7
--- /dev/null
+++ b/Documentation/ProjectFile/materials/adsorption/reaction/i_reaction.md
@@ -0,0 +1 @@
+\todo document
diff --git a/Documentation/ProjectFile/materials/adsorption/reaction/t_type.md b/Documentation/ProjectFile/materials/adsorption/reaction/t_type.md
new file mode 100644
index 0000000000000000000000000000000000000000..bbf877d784159e752987c7cd00e4f6590d864bf7
--- /dev/null
+++ b/Documentation/ProjectFile/materials/adsorption/reaction/t_type.md
@@ -0,0 +1 @@
+\todo document
diff --git a/Documentation/ProjectFile/materials/c_materials.md b/Documentation/ProjectFile/materials/c_materials.md
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/MaterialsLib/Adsorption/Reaction.cpp b/MaterialsLib/Adsorption/Reaction.cpp
index 7f08aab83a18c8d3d0ff5ad3984c4614447c7a5e..0a571b1ba3b540cc6ff3b2d3ce23161f82893410 100644
--- a/MaterialsLib/Adsorption/Reaction.cpp
+++ b/MaterialsLib/Adsorption/Reaction.cpp
@@ -32,6 +32,7 @@ std::unique_ptr<Reaction>
 Reaction::
 newInstance(BaseLib::ConfigTree const& conf)
 {
+    //! \ogs_file_param{materials__adsorption__reaction__type}
     auto const type = conf.getConfParam<std::string>("type");
 
     if (type == "Z13XBF")
diff --git a/MaterialsLib/Adsorption/ReactionCaOH2.h b/MaterialsLib/Adsorption/ReactionCaOH2.h
index dba2d1b7a0820fa0df40d9ac31e007a7b8366423..bb60d3170b43a3fa19662ced899b66df8cd8e3be 100644
--- a/MaterialsLib/Adsorption/ReactionCaOH2.h
+++ b/MaterialsLib/Adsorption/ReactionCaOH2.h
@@ -26,8 +26,9 @@ namespace Adsorption
 class ReactionCaOH2 final : public Reaction
 {
 public:
-    explicit ReactionCaOH2(BaseLib::ConfigTree const& conf)
-        : _ode_solver_config{conf.getConfSubtree("ode_solver_config")}
+    explicit ReactionCaOH2(BaseLib::ConfigTree const& conf) :
+        //! \ogs_file_param{materials__adsorption__reaction__CaOH2__ode_solver_config}
+        _ode_solver_config{conf.getConfSubtree("ode_solver_config")}
     {}
 
     double getEnthalpy(const double /*p_Ads*/, const double /*T_Ads*/,
diff --git a/MaterialsLib/Adsorption/ReactionSinusoidal.h b/MaterialsLib/Adsorption/ReactionSinusoidal.h
index 9fb4bb98abf30daba41ec6ee659776fce5d29b50..42415991a39e1afec229368819d84f67f313bf6b 100644
--- a/MaterialsLib/Adsorption/ReactionSinusoidal.h
+++ b/MaterialsLib/Adsorption/ReactionSinusoidal.h
@@ -21,8 +21,9 @@ namespace Adsorption
 class ReactionSinusoidal final : public Reaction
 {
 public:
-    explicit ReactionSinusoidal(BaseLib::ConfigTree const& conf)
-        : _enthalpy(conf.getConfParam<double>("reaction_enthalpy"))
+    explicit ReactionSinusoidal(BaseLib::ConfigTree const& conf) :
+        //! \ogs_file_param{materials__adsorption__reaction__Sinusoidal__reaction_enthalpy}
+        _enthalpy(conf.getConfParam<double>("reaction_enthalpy"))
     {
     }