diff --git a/inbox-excel-vocabs/voc4cat.xlsx b/inbox-excel-vocabs/voc4cat.xlsx
deleted file mode 100644
index b2f1df37..00000000
Binary files a/inbox-excel-vocabs/voc4cat.xlsx and /dev/null differ
diff --git a/vocabularies/voc4cat/0000017.ttl b/vocabularies/voc4cat/0000017.ttl
index 5a995156..a038cd48 100644
--- a/vocabularies/voc4cat/0000017.ttl
+++ b/vocabularies/voc4cat/0000017.ttl
@@ -6,10 +6,10 @@ PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
     a skos:Concept ;
     dcterms:identifier "voc4cat_0000017"^^xsd:token ;
     skos:broader <https://w3id.org/nfdi4cat/voc4cat_0000016> ;
-    skos:definition "A photocatalyst introduced to the reaction chamber in the form of a powder. Usually the powdered photocatalyst is spread inside a quartz / glass plate."@en ;
+    skos:definition "A catalyst introduced to the reaction chamber in the form of a powder. Usually the powdered catalyst is spread inside a quartz / glass plate."@en ;
     skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://w3id.org/nfdi4cat/voc4cat_> ;
     skos:narrower <https://w3id.org/nfdi4cat/voc4cat_0000018> ;
-    skos:prefLabel "powdered photocatalyst"@en ;
+    skos:prefLabel "powdered catalyst"@en ;
 .
 
diff --git a/vocabularies/voc4cat/0000080.ttl b/vocabularies/voc4cat/0000080.ttl
index 591d6496..748d918f 100644
--- a/vocabularies/voc4cat/0000080.ttl
+++ b/vocabularies/voc4cat/0000080.ttl
@@ -21,6 +21,6 @@ PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
     skos:definition "A spectroscopic technique used to study the vibrational modes of chemical bonds of a sample using infrared radiation."@en ;
     skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://w3id.org/nfdi4cat/voc4cat_> ;
-    skos:prefLabel "fourier transform infrared spectroscopy"@en ;
+    skos:prefLabel "Fourier transform infrared spectroscopy"@en ;
 .
 
diff --git a/vocabularies/voc4cat/0000122.ttl b/vocabularies/voc4cat/0000122.ttl
index a4c66d86..47b80c7c 100644
--- a/vocabularies/voc4cat/0000122.ttl
+++ b/vocabularies/voc4cat/0000122.ttl
@@ -5,6 +5,7 @@ PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
 <https://w3id.org/nfdi4cat/voc4cat_0000122>
     a skos:Concept ;
     dcterms:identifier "voc4cat_0000122"^^xsd:token ;
+    skos:altLabel "sample pretreatment"@en ;
     skos:broader <https://w3id.org/nfdi4cat/voc4cat_0000100> ;
     skos:definition "Pre-treatment of a catalyst before its introduction to the reaction chamber."@en ;
     skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
diff --git a/vocabularies/voc4cat/0000181.ttl b/vocabularies/voc4cat/0000181.ttl
index 8a62e263..f2373efb 100644
--- a/vocabularies/voc4cat/0000181.ttl
+++ b/vocabularies/voc4cat/0000181.ttl
@@ -1,10 +1,12 @@
 PREFIX dcterms: <http://purl.org/dc/terms/>
+PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
 PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
 PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
 
 <https://w3id.org/nfdi4cat/voc4cat_0000181>
     a skos:Concept ;
     dcterms:identifier "voc4cat_0000181"^^xsd:token ;
+    rdfs:isDefinedBy <https://www.w3.org/TR/2010/NOTE-curie-20101216/> ;
     skos:definition "Any entity that cannot be located in space-time. E.g., mathematical entities, formal semantics elements, regions within dimensional spaces, ideas, conceptual models."@en ;
     skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas and 0000-0002-5898-1820 David Linke created the resource"@en ;
     skos:inScheme <https://w3id.org/nfdi4cat/voc4cat_> ;
diff --git a/vocabularies/voc4cat/0007024.ttl b/vocabularies/voc4cat/0007024.ttl
index eeeb52f5..ae9b4ccf 100644
--- a/vocabularies/voc4cat/0007024.ttl
+++ b/vocabularies/voc4cat/0007024.ttl
@@ -5,11 +5,11 @@ PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
 <https://w3id.org/nfdi4cat/voc4cat_0007024>
     a skos:Concept ;
     dcterms:identifier "voc4cat_0007024"^^xsd:token ;
-    skos:altLabel "reaction rate"@en ;
+    skos:altLabel "rate of reaction"@en ;
     skos:definition "A physical quantity describing how fast a chemical reaction proceeds. It is defined by the change of the extend of reaction per unit of time."@en ;
     skos:historyNote "0000-0002-4041-0165 Julia Schumann created the resource, 0000-0002-5898-1820 David Linke contributed to the definition of the resource"@en ;
     skos:inScheme <https://w3id.org/nfdi4cat/voc4cat_> ;
-    skos:prefLabel "rate of reaction"@en ;
+    skos:prefLabel "reaction rate"@en ;
     skos:topConceptOf <https://w3id.org/nfdi4cat/voc4cat_> ;
 .
 
diff --git a/vocabularies/voc4cat/concept_scheme.ttl b/vocabularies/voc4cat/concept_scheme.ttl
index 28cca9f6..67c39b8b 100644
--- a/vocabularies/voc4cat/concept_scheme.ttl
+++ b/vocabularies/voc4cat/concept_scheme.ttl
@@ -12,7 +12,7 @@ PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
         <https://w3id.org/nfdi4cat/voc4cat_0001900> ,
         <https://w3id.org/nfdi4cat/voc4cat_0001901> ;
     dcterms:identifier "voc4cat_"^^xsd:token ;
-    dcterms:modified "2024-07-01"^^xsd:date ;
+    dcterms:modified "2024-08-26"^^xsd:date ;
     dcterms:publisher <https://w3id.org/nfdi4cat/> ;
     owl:versionInfo "automatic" ;
     skos:definition "A vocabulary for all areas of catalysis initiated in NFDI4Cat. Starting with photocatalysis we add more and more terms from other areas of catalysis and related disciplines like chemical engineering or materials science."@en ;